^^^ \\ v^ f ■) ,-T \ \ ;V- S9io at Joh« p. Johansen 11' •. ' /. 6. ^ -4- v-- ' a^. ^Denmark's Rovebeetles or The Danish Senera And Species Of BKBTLE FAMILY STAPHYLINIDAB Published Under The Garlsberg Fund Translated by Annette Henriksen Copenhagen fiianco Luno's Printing House 1914 4 9 Translator's Explanatory Notes. The translation of this work was not started at the beginning, as it was not at first decided that the entire book should be translated. And unfortunately I did not thoroughly look into the Introduction in front of the book. This is responsible for some errors occurring in the translation of the second group Tachyporini , which was done first, also in the third group Staphylinini , which came next, from there to the end of the book no such errors occur, and the first group Aleocha- rini, which came last is doubtless the best translation, as the struc- ture of the insects, and the most generally applied technical terms became more familiar to me, as the work progressed. . The author has used strichtly Danish terms throughout the entire work, and I naturally followed his form of expression as much as pos- sible, however endeavoring to find the best English terms; therefore when he speaks of .the fore- middle- and hind-breast, I naturally trans- lated it as presternum etc., the Introduction however shows that it should have been - prothorax- etc., when referrin'? to the breast, the term breastbone is applied: fore-breastbone etc. - For the literal term "forebody" T have formerly used; thorax, but was lately told that in coleoptera the terra forebody is more explicit, so I have used this term in the latter part of the work. -2- As the author has cjalled all segments Joints, I did likewise, fear- ing to make a .wrong distinction, had I however consulted the Introduc- tion I would not have heen in douht where to apply the terms segment, tergite and sternite. 'A'ith thSLhks to all for kind assistance rendered. Annette Henriksen FOREWORD The following work is sin attempt to give a systematically arranged presentation and sufficiently detailed description of the IfeLnish genera and species of the beetle family Staphylinidae, our so-called Rove-Beetles. This work is designed to serve as a manual whereby accurately, and as easy as the subject permits, to determine all the rove-beetles to group, genus and species, which heretofore are found or reasonably may be expected to be found within the scope of our fauna. Inasmuch as collections from vari- ous parts of the country, especially during the last 50 years, have provi- ded very good material with survey of the extensiveness of the family, and the numerousness of species in this country, and since records, from vari- ous hands, of species found, until very recent years, describing habitat, mode of living etc. are now available (see Literature p. 655), it has been nade possible to prepare such a work. It should seemingly also be well re- ceived, as no former extensive work dealing with Denmark's rove-beetles is found in our faunistic literature. Vith the exception of a few shorter trea- ties and scattered articles in periodicals (see li-fcerature index), ,je have heretofore in treating of our Ptaphylinidae fauna by necessity exclusively resorted to the works dealing with Middle and North f^ropean Staphylinids, which are available in German, French, Swedish and English, among the au- thors which especially must be mentioned are Srichson, Kraatz, r^anglbauer, (i) (ii) Mulsant et Rey, Thomson, and Fowler (see index of literature). Notwithstan- ding the excellence of these eminent entomologist's works, the need of a suitable handbook in Danish, limited to the country's fauna v/as however felt. Such a book should serve both as inspiration and information, inspiration for many a younger entomologist, which heretofore has neglected the many small and rather difficult Staphylinidae species, inf omation for all. - This work should if possible meet this need. As foundation for the work, and especially for descriptions of species, i have in my own collection of Staphylinids liad rather complete and also rather plentious material. ATiere this however was not sufficient, the vdl- lingly rendered loans from Zool. Museum's III. Division, Copenhagen, and all private Danish collections of any importance have supplied the wanting material. Tn all details have I therefore been enabled to examine, describe or compare with descriptions by others, and render information according to personal identification. Only in regard to the species, which are not yet found here, but however included as found mostly either in Skaane or the nearest part of North Germany, and which probably also have habitat here, the description is according to others. This refers to at most i\0- 50 species. In regard to the systematical arrangement of the material, I have, in the group division principally followed Erichson ( Genera et Species Staphy- liooTym- I839); and Kraatz (Naturgesch. d. Insect. Deutschl. II, .^taphylinii 1858), for the rest namely Ganglbauer (Die Kafer v. Mitteleuropa II, Staphy- linidae. 1895) and Mulsant et Rey (Hist. nat. Col. '-'ranee. Erevipennes. (iii) 1873-1383). In generic and specific descriptions, I have, partly in agree- ment with Thomson (Skandinaviens QoleopAera. 1859-1863), sought to reach a sound basis for determinations by indicating all comparatively easily seen characters and external marks. Detailed descriptions of finer and concealed mouth-parts are as far as possible avoided, and only in difficult cases e.g. the shape of the tongue is used as conclusive character in the generic key. Generic and specific names are, with a few exceptions, in a- greement with Catalogus Coleopt. "urop. Ed. IV. Edm. Reitter. 1891. Some of our earlier applied names in the classification are thereby shifted over to the series of synonyms. Of synonyms the most important generic and spe- cific names are listed. Data concerning the natural range, occurrance, and other biological circumstances etc. of the species, I have presented partly from personal notes, partly according to reports or from findings in other collections, and in entomological papers. As far as possible all sources of informa- tion of any importance are listed in their proper places.- Inasmuch as rove-beetles can be found and collected nearly all the year round, I have ordinarily only denoted localities for especially rare species, in as far as these have been known to me. The list of authors and their entomological works here cited, which is found last in the book, will sufficiently explain abbreviations used for names of authors, and writings cited. - The accentuation in the generic and specific index is partly according to information most cordially ex- (iv) tended ty Hr. Advocate Joh. Andersen, Haderslev, and partly according to CI. Grill: Catalogue Coleopt. Scandinaviae, Daniae et Fenniae. I896. The illustrations are drawn by Hr. Mag, scient. Kai Henriksen. It is my hope that these figures, 200 altogether, and with only a few exceptions all original, will add considerably to the helpfulness of this book, and I here take occasion to express my sincere thankfulness to the management of the Carlsberg Foundation for so readily aiding financially for the execu- tion of the dravdngs, also my grateful appreciation to Mag. Kai Henriksen for his efficient work. I am furthermore deeply grateful to the management of Carlsberg Foundation for ample assistence in the publication of the en- tire work, and D'hrr. Museum's Director Mag, scient. dll. Lundbeck, Dr. Adam Boving and Dr. Wesenberg-Lund for recommending the work to the Carls- berg Foundation for support. And finally it is my pleasant duty to express my gratitude to all those, who., in other ways have assisted in the completi- on of the work; to Hr. Museum's Director Mag, scent, '.'/ill. Lundbeck, who very generously has made available to me the full use of the museum's Sta- phylinidae collection, and aided me by extensive loans of entom. literature; to Dr. Adam Bjzfving and Dr. Th. Mortensen, for their kindly and ef~f ective incouragement , without which the work would scarcely have been completed} to D'hrr. Tngineer Chr. Engelhart, Hellerup, Costuiiihouse Assistant 0. IIol- stebroe. I.e., Dr. I. C. Nielsen, Copenhagen, Director 0. Jakobsen, Cand. W. Schlick, Cand. Vict. Hansen, Printer E. Rosenberg, Costurashouse Asst. 0. Schaliz, and Machine-draftsman B, G. Rye, I.e., Attorney A, '.Vest, Holte, Teacher I. P. Kryger, Gentofte, Chamberlain Fabritius- Tengnagel, Soroi (v) Pastor I, Moller, '7. Ulslev, Lolland, School-Superintendent N. P. J^rgensen, Odense, Teacher L, Andersen, Haderslev, Advocate Joh. Andersen, and Cand H. Andersen, I.e., Bookbinder S. Jurgensen, Kolding, Teacher Esben Petersen, and Teacher Jensen-Haarup, Silkehorg, also Lighthouse-keeper E. //ielandt, Skagen, formerly Haraneren, Bornholm, who all, chiefly by lending of their Staphylinidae collections, and by reporting their findings and observations, but also in other respects have manifested interest in my work, and contrib- uted to its completion. - Cand H, Andersen's assistance in the proof reading of a great deal of the work, has been of great value. In the hope, that the following work, as it now appears, may - though wanting - serve to further the knowledge of our largest beetle family, I here present it to use for all who desire to become more closely acquainted with Denmark's Rove-Beetles. Hillerod, Sofiero. May 191^^. Joh. P. Johansen. (Page 1) - Introduction - Family STAPHYLINIDAE. (jAicroptera iravh. Coleopt. Micropt. Brunsvic. 1602, VII. - Staphylini Erichs. ien. et Spec. Staph. 1839. - Staphylinii Kraatz Ins. Deutshel. II. 1856. - Staphylinidae and fwicropeplldae Thorns. Skand. Coleopt. I, 1859, ?.2; II. 1860, 136; III. 1861 and IV, 1863, 195. - Brevipennls Uuls. et Rey Hist. Nat. Coleopt. de France 1873-1883. - Staphylinidae Janglb. Kaf. Mitteleurop. II, 1895.) Staphylinids or "Rove-beetles" (family Staphylinidae, true Staphylinids) are among the beetles, by strongly abbreviated elytra etc., most closely related to the Pselaphids (Fam. Pselaphidae and Clavigerldae) . Together with these and the small family Platypsyliidae , which is not included in our fauna, but in Middle Europe at the Elb is still represented by the ■beaver louse", Platypsyllus castoris Ritz. , comprise the family group STAPHYLINIDA (Staphylinids in broader sense). The closest relatives of this group again are Scydmaenids (Fam. Scydmaenidaej , Silphids (Families Sllphidae and Anisotomidae) , Ptiliids (Fam. Ptiliidae and Sphaeriidae) and Histerids (Fam. Histeridae) . In connection with these and a few other smaller families (Leptinldae, Glambidae, Scaphidiidae) the family Staphy- linidae belongs to the family series STAPffi LINO IDEA (Staphylinids in broad- est sense), of which the collective mutual characters especially notable are, that the veins in the wings are not connected by transverse veins, but are free running out into the margin of the wings (Fig. 7), and that the elytra most often are more or less abbreviated. Also through the body (Page 1) structure of the larvae the relationship among these families is confirm- ed. Family STAPHYLINIDAE, the true Staphyllnids, are characterized by the structure and peculiarities of the elytra, abdomen, antennae and tarsi: The elytra are more or less strongly abbreviated, most often covering only the first two dorsal joints of abdomen, rarely the greater part of abdomen. The wings can be folded 2-3 times together and laid beneath the elytra. The abdomen consists of 9-10 dorsal Joints (tergites) and 6-7 devel- oped ventral Joints (sternites). The joints are, with exception of the first two covered dorsal joints chitinized (covered over with a horny shell), (Page ?,) but individually free, only connected by a thin membrane; abdomen there- fore very flexible. The antennae are as a rule 11-Jointed, rarely 10- or 9-jointed, most often more or less thickened distally, rarely club-formed offset. The tarsi are 5-4-3- or exceptionally 2-jolnted. Though the abbreviated form of the elytra is most conspicuous and there- fore mainly distinguishes the appearance of the Staphyllnids, they are however less characterized by this than by the very flexible abdomen. As said there are other beetle families in which the elytra likewise are abbreviated (Fselaphidae. Histeridae et al.) even though less pronounced, also there Is found even among the actual Staphyllnids several genera (Lathrimaeum. Anthobium, Protelnns) . where the elytra covers more than two (Paja 2) dorsal joints of abdomen, occasionally even almost the entire abdomen. But no other beetles are found which In regard to flexibility of abdomen can compare with Staphyllnlds. In this they occupy a unique position. It follows that the abdomen is most flexible in the species with short- est elytra, where it unhindred can bend upward and downward, forward and to the sides, but also In that of the species with longer elytra there is considerable flexibility, even though somewhat limited by the shape and length of the elytra. Only in genus Micropeplus is the abdomen, on account of the more compact Joints, rather Inflexible. The majority of Staphyllnlds are agile, lively animals. Ordinarily their body (corpus) , is elongate and slender, more often flatly rounded than cylindrical, seldom strongly convex. This enables them to nimbly flit about beneath the plant cover seeking prey or hiding on all uneven ground. More rarely is the body short and broad (as in Megarthrus et al.) It is most often entirely or at least partly finely haired, very rarely entire- ly naked (or bald), and the hair vestlture is seemingly more densely de- veloped in the species which live on very wet or muddy ground or at manu- re; the abdominal tip and sides of the body are very often furthermore provided with longer bristles and stiff hairs, , which probably are for pro- tection of the body against filth, and also serve as tactile bristles. About the principal parte of thu body: the head (with eyes, antennae, mouth- parts etc.), the thorax (with wings, elytra and legs) and the abdomen, it is necessary in order to understand the description of genera and species to set forth the following (see Fig. 1 and 2) j -3- (Page 2) A. The head (caput. ) is more often porrect than bent downward, of;, form most often rounded or rounded-off-transverse (broader than long); rarely beak- or snout-like tapering (Myllaena, Lrymnusa at al.). posteri- orly often more or less neck-shaped constricted (Fala;;ria. Staphylinus. Omalium and many others) otherwise without constriction imbedded in the pronotum. Of its individual parts the eyes, antennae and mouth-parts ecB. are especially observed. (Page 3) a. The eyes are "compound eyes" and ordinarily are not strongly pro- truding i in several genera they are however strongly protruding (Gyrophae- na. Stenus et al.). The eyes vary greatly in size; some are small or very small (as in Homalota species 6f subg. leostiba. Amlscha et al.), others 80 large that they fill the entire sides of the head (^uedl_as, Stenus) . Ordinarily the size lies between the extreme points, and are then called normal. In the group Omaliinl and genus Phloebium besides the ordinary compound eyes on each side of the head, very small point-eyes occur (ocelli, 2-1) on the vertex. b. The feelers (antennae) are either filiform or monlliform, i. e. all over of same thickness and most often rather slender, or they are - and most frequent - more or less smoothly thickened distally, oocaBionally somewhat club-formed; as a rule they are straight, rarely after a long first Joint (the scape) geniculate (Cryptobium. Bledius et al.). As a rule they consist of 11 joints, only exceptlonataly of 10 (Oli^ota and Hypocyptua) or 9 (Micropeplue). In Micropeplus, which in several re- (Page 3) spects deviates from the other Staphyllnidae genera, the last three joints of the antennae are connate forming a sharply setoff, comparatively large distal joint, whereby the antennae become club-formed. Of the individual joints the first is most often the longest, also the second and third as a rule somewhat elongate, sometimes the second longer than the third, some- times the reverse, a condition, which not infrequently is of some impor- tance as specific character. The fourth joint is most often smaller than the preceding, . and the following outer joints (5-10) in most species increase somewhat in thickness dlstally, as they simultaneously become gradually short- er; distal joint is of varying length. The antennae most often reaches on- ly a little out over the posterior margin of pronotum, most often about :ts long as head and pronotum together, sometimes shorter. They are inserted either back of the base of mandibles or inside this beneath side or fore- (Page 4) margin of the forehead, or at inner margin of the eye or on forehead be- tween the eyes - conditions, which become significant as devision charac- ters between certain groups. c. The mouth-parts, which serve as equipment for eating and feeling, afford particularly important, even though very small, and only by special preparation and magnification distinct generic characters. They consist of upper lip, cheek-bones, jaws with jaw-feelers, and lower lip with the chin, lip-feelers and tongue: The upper lip (labrum) , which covers the mouth above, and which posteri- orly Is connected with the mouth-shield (clypeus) , is horny- or parchment- like, often entire, but not infrequently divided or cleft at middle-line (Page 4) (Phllonthus et al.) or incurved, or toothed in fore-margin (Stilicus, Euaesthetus et al.). - Cheek-bones (mandibulae/ are as a rule robust, more or less protruding, most often sickle-shaped, and folded crosswise when mouth is closed, on inner side often armed with robust teeth, - The jaws (maxillae) (Fi^. 2) are of a more or less horny substance; their inner lobe, mastication-lobe (lobus interior) is on inner side haired or finely toothed, the outer, palpal lobe (lobus exterior) at tip densely haired. The jaw-feelers or jaw-palpi (palpus maxillares) consists of 4 joints, of which the first usually is short, the second and third lon- ger, most often thickened toward tip; the fourth, distal joint, as a rule is somewhat thinner than the next-last, in many genera especially small and spiculiform or subuliform. In the genus Aleochara the extreme tip of the fourth Joint is setoff, so that it forms a very small fifth joint, a uniqut character, which is useful in the ^jeneric key. - on the lower lip (labium) (Fig. 3), which closes the mouth beneath, the chin (mentum) is most often broadly trapeziform with straight or incurved, more rarely deeply divided fore-margin (as in Autalia Fig. 90), occasionally with den- tiform corner-lobes (Myllaena; or with a tooth in middle (Stenus). That part of the lower lip which bears the palpi and tongue is as a rule rather short, only in Stenus of unusual length, but is here drawn back into a sheath, of and with which it by pressure or perhaps also voluntarily can be thrust far forward (see u. Stenus) . The tongue (ligula^ , with which -- — (Paige 5) the bitongues (paraglossae) are connate, is in connection whith this of very different shape, and thereby together with other mouth-parts, in dif- -6- (Page 5) flcult cases affords an Important determination character between closely allied genera. - The lip-feelers or lip-palpi (palpi labiales) are attached to a solid foundation, palplger, and are as a rule 3- jointed, exceptionately 2- or (as in Aleochara) 4-jointed. Their distal joint can sometimes assume singular shapes, it can be feebly hatchet- shaped (as in Staphylinus, subgenus Ocypus) or semilunar (as in Oxyporus). On ventral side of the head in many Staphylinids is found a more or less distinct carina (Fig. k) which begins at posterior margin of the head, runs over sides of head (temples and genae) and most often reaches to the mouth- corners, where, in the sharp outer margin of this it vanishes, ■"here this carina is entire, the temples and genae are called margined; but oc- casionally it is upwardly evanescent and only visible posteriorly; temples and genae are then called incompletely margined. These conditions are often of characteristic significance in regard to the Aleocharini species. B. The breast-part (thorax) is the intermediate of the principal parts of the body. Its three rings: pro-, mesa- sind metathorax bear the organs of locomotion: wings and legs. 'Vith its anterior ring it is attached to the head, with the posterior one to the abdomen. Concerning its individual parts the following is to be noted: a. The fore-breast (prothorax), in which the foremost pair of legs is seated, is covered by the upper back (pro no turn) or the breast shield (often called'thorax") , the differing form ajid impressions of which often render good specific characters. Anteriorly its fore-ntargin occupies and covers more or less the posterior part of the head or neck, and is therefore often -7- (Page 5) called, though less fortunately, "neck-shield". The posterior margin of pronotum joins or overlaps the base of mesothorax. In several Staphylinids the pronotum is without side-carina (as in Stenus ) . otherwise its dorsum is as a rule separated by a sharp side-carina from the more or less strong- ly deflexed or inflexed side margins ( epipleurae ) , (see Fig. 5)» - On ven- tral side of prothrorax the fore-margin of the forebreast-bone (presternum) is united to ventral side of the head, while its posterior part covers the thorax between the fore-coxae. The fore-margin is occasionally (as in Tantholinus ) developed into a moveable plate (gullet-shield) which covers the easophagus. Back of the fore-coxae the prothorax in most of the Staphy- linidae_ groups is horn-like (chitinized) and thereby well protected, but in the first three large groups : Aleocharini, Tachyporini and Staphylinini this part of ventral side of the prothorax is only clothed with a thin cuticle. As a protection for this the fore-coxae in these groups are bent somewhat distad, (Page 6) so that they in connection with the femora of the fore legs cover this soft paxt. By lifting the fors- coxae up and bend them foreward, or remove them entirely the spiracula of prothorax in the species of said groups are seen, one on each side (stigma prothoracicum). bounded by a dark chitinized riag. The prothoracic side- plates : episternum and epimera are in the ssune groups not developed, smd only in few genera (.^edius. Philonthus at al.) a margin of the epimeron, a small triangular plate of horny substance (operculum) appears from under the pronotal epipleuron {Fig. 6^ and can sometimes partly cover the other- -8- (Page 6) wise exposed spiracle. In other groups than the first three, partly un- chitinized prothorax with visible spiracula occur only as exceptions (cf . Cryptobium. Platystethus ) . In Micropeplus the prosternum is anteriorly on each side separated from the pronotal epipleura by a deep groove, which as antenrial groove serves for the receiving and protection of the antennae, when these are bent in under the head. b. The medial breast (mesothorax) (se Fig. 1 and Pig. 5) is connate, without notable separation, with the back breast. Above it appears in the dorsal plate or dorsal shield (scutellum). which in most of the Staphylinids is visible as a small triangular or rounded plate between or before (Bledius) the base of elytra; it is nore rarely concealed (Stenus). On the foremost dorsal part of the mesothorax the cover-wings (coleoptera^ , or wins covers (elytra) as they often are termed, are fastened. They are as a rule very strongly abbreviated and so short that they most often only cover the first two abdominal joints or base of the third also; in several instances, where flying wings are wanting (as in Astilbus canaliculatus , Homalota circellaris et al.) they only reach slightly out over the first dorsal joint. In some genera hov/ever the elytra reaches out over 3-5 of the abdominal joints, and (Page 7) in the o g of Anthobium they can be of length with abdomen. In Yantholinus the suture of one elytron grips the other, which is considered as an indi- cation of this genus belonging to the most ancient forms of Staphylinidp on earth; in Thinobius they gape at tip or are closely joined together in a -9- (Page 7) straight seam (sutura) and together form a good cover for the wings. Their side margin which is tent inward toward the breast, side-cover (epipleura) is in several Staphylinids (e.g. Tachyporines) separated by a sharp carina from the dorsal plane, in others (Oxytelines and Omalines) defined by an impressed line; in the majority the dorsum is not especially bounded from the side cover (as in Aleocharini. Staphylinini, Stenini at al.; Dinarda is among the Aleocharines an exception). - On ventral side of mesothorax the medial breastbone (mesosternum) is noted, its middle paxt tapering runs in between the middle coxae. This tip varies from being short and rectangular to longer, more tenuis. In many species the mesothorax is finely carinated in medial line, otherwise as a rule smooth. These varying features are in several cases significant as specific characters. Of the raesothoracic side parts: episternura and epimera, the latter is especially always distihct. c. The hind breast (metathorax) (see Pig 1 and 5) is the hindmost ring of the breast. It bears on dorsal side the second pair of wings, flying wings (alae), which are membranous and show only longitudinal veins (venae) or longitudinal ribs, of which the flexible joint lies closer to the base than to the middle (Fig. 7); the Staphylinids thereby agreeing with the rest of the families of the family series Staphylinoidea (see preceding). With the help of the flexible abdomen the wings are folded three or two times together and thus laid entirely in under the elytra. Only a small number of Staphylinids are wingless. ATiere this is the case, the elytra become unusually short and most often also somewhat sunken (Astilbus et al.). - On ventral side of metathorax the space between middle aiid hind coxae is -10- (Page 7) covered by the hind breastbone (metasternura) , also the greater part of rae- tathorax; its more or less robust development is in proportion to the fly- ing capacity. Of the side parts, which most often are narrov/, often partly concealed under the lateral margins of elytra, the loins (epimera) are oc- casionally visible above the elytral hind corners (Aleochara). The meso- and metasternum provide seat for the two hindmost pairs of legs. d. The legs (pedes) (see Fig. 5) afford in many respects important characters as means for the division of Staphylinids ; the coxae and tarsi are especially of importance. -(Page 8)— The hips (coxae) , which, with some exceptions in regard to the middle- and hind-coxae, most often are placed close together, vary in size and form by groups, sometimes tap-shaped or con- ical and strongly protruding as the fore-coxae in Staphylini et al., or broad as the hind coxae in Oxytelini, or small as in Stenini. The hip-ring (tro- chanter ) is called supporting, when it is rather large and lies downward on upper part of the femur (as in Aleochara, Tachinus , Omalines et al.). - The thigh (femur) can be more or less thickened, only rarely is it on inner side dentiform dilated (front femur of o in Lathrobium) ; as a rule it is un- armed. The shins (tibiae) differ in development. In digging forms (Bledius, Phytosus et al.) the foremost tibiae are robust, armed in margin with thorns*); sometimes they are more strongly broadened than ordinarily toward the tip. In agile species the tibiae are most often fine, haired or feebly spiniferous. - The tarsi consists^ in a great number of Staphylinids of 5 joints, but k of- ten occur, occasionally only 3, and very extraordinarily (Thincbius) only 2 Joints. Also in the same species the number of tarsal Joints varies, inasmuch -11- ♦)spines - translator. (Page 8) as the fore-tarsi can be 4- jointed and the others 5- jointed, or only the hind tarsi 5- jointed, while the others are 4- jointed. These varying conditions are especially significant in division of the group Oleocharini. The indi- vidual joints of the tarsi are most often round, however sometimes broad and flat, the latter partly depends on the mode of living and sex of the species (cf. Hygronoma, many Stenus species, fore-tarsi in the d^ of Fhi- lonthus et al.) As a rule the joints interchangeably differ in length, which not infrequently, espicially in regard to the hind tarsi, is taken into con- sideration in the key to genera and species. C. The hind body (abdomen) (see Pig. 1 and Fig. 5), which adjoins the metathorax, consists of many joints (se'jments) with a dorsal part, dorsal joints (dorsal segments, tergites) and a ventral part, ventral joints (ven- tral segments, sternites). The joints are mutually connected by a membrane which affords the great flexibility of abdomen (see preceding). The joints are chitinized i.e. covered by a horny shell, which however is not devel- oped on the entire first dorsal joint and base of the second, where abdomen is protected by the elytra. Also in the species with long elytra the shell on the covered joints is more pergamenous than horny and less hard. The number of abdominal segments should, in a^eement with the ur-type of in- sects (cf, t, Rftd. Lepiema saccharir.q. L., silverfish) be 10; but as some segments as well dorsal as ventral are either connate with the metathorax, or otherwise reduced, so that the number of true or distinct Segments are differently understood, h'richson first counted 8 segments, later 9; Thom- son and SchiiSdte count only 7 true segments; Kraatz declares, that 9 seg- -12- (Page 8) ments are found, but in consideration of all practical dicision only 8 fig- ure in his description. Later investigations (Verhoeff : Deutsche Entom. Zeitschr. 1893. ^35) have proved, that abdomen (typically) consists of 10 dorsal segments eind 8 developed ventral ser^ments. To this however must be remarked, that the segments are not always equally distinctly developed. (Page 9) In the largest species (Staphylinus, Lathrobium, Paederus et al. ), when the elytra are removed and the abdominal tip is not drawn in, all 10 seg- ments can most often without difficulty be counted, but in most of the smaller species, especially in all Aleocharines, practically only 9 can be considered, as the true ninth segment is rudimentary. In all Staphylinids the first dorsal segment of abdomen is entirely concealed and solidly con- nate with the metathorax, of which the last ring is revealed as a triangu- lar plate (postscutellum) , which dorsally divides the segment into two side- halves, each provided with an unusually large spiracle (see Fig.l^ . Also the second dorsal segment of abdomen is partly or entirely concealed beneath the elytra, so that the first free uncovered segment is the third. This seg- ment will therefore in the following description be mentioned as the first free dorsal segment and the following counted as the second, third, fourth etc. free Segments. The true seventh dorsal segment -a=thG fifth free, is of- special significance for the correct count of the dorsal segments, in that its posterior margin in most of the species, particularly among Aleocharines, is provided with a narrow, very fine, white suture, which is easily seen, -13- (Page 9) and therefore establishes this fifth free dorsal segment as a fixed starting point for the counting. This cuticle-suture is presumably of some use for the animal in spreading and folding of the wings. The eight dorsal segment =the sixth free, is in the ^of many species distinguished by special sex- characters. The true ninth segment is ordinarily reduced to small, narrow, often styliforra side-parts, which are distinct in most of the larger speci- es (Staphylinus. Philonthus, ^^uedius et al.), but most often indistinct in the smaller. This segment very rarely occur broader or more fully developed (see Lathrobium, when abdominal tip is not drawn in) or even entire (as in the 6 of Xantholinus ) . The tenth dorsal segment forms the apex of abdomen. Together with the reduced ninth segment the tenth segment in dead or not well prepared specimens of Staphylinids easily shrink, so that both often become indistinct. - Of the original ventral segments of abdomen, the first, i.e. that, which as ventral segment v.'ould oorrespond vith the first dorsal seg- ment, has entirely vanished, absorbed in the metathorax. Also the second ventral segment is, in most of the Staphylinidae groups concealed, only visible in some of the Oxytelines; the ninth has vanished, leaving only 7- 8 distinct ventral segments of that with the dorsal segments corresponding typical number. The next-last ventral segments (see Fi:^. 8) are not infre- quently distinguished by special sex-characters in the S' . In the follow- ing descriptions the ventral segments are counted as they are found, regard- less of the routine of dorsal segments, from the thorax and dlstad as first, second, third ventral segments etc., and as a rule the first free dorsal segment will then agree with the first ventral segment as dorsal and ventral part of same abdominal segment. - Abdomen is as a rule sharply side-margined, -14- (Page 10) rarely entirely round (Conosoma, several Stenue species). It varies in form, sometimes of uniform breadth and only tapering posteriorly, and again more smoothly tenuis, occasionally narrowing up toward the metathorax (Tachyusa constricta Fig. 88 et al. ) not infrequently f eetly spool- or fusiform. Then running, and in fear, also often at rest, many Staphylinids raise ab- domen up in the air or bend it forward over the forebody, probably to cover this or to produce a different appearance. Sometimes this tendency has be- come a fixed habit, which not only distinguishes the appearance of the ani- mal but also the structure of its body (cf. Bncephalus ) . Where the flexibi- lity forwardly is developed, several of the foremost free dorsal segments most often three, sometimes four, are depressed or transversally grooved at base. Most of the Tachyporines and many species with long elytra curve ab- domen downward and inward toward ventral side; some of the Xantholines when in danger bend the forebody in toward metathorax and in this position lie atill, apparently dead. The difference between the sexes is not always externally distinct, but in a great number of species in all groups it is however apparent, especially in the S' , in external sex-characters. The sex- characters often consist of spines, teeth, carina©, grooves or incisions on one or several of the last abdominal segments either on dorsal or ventral side. But also on head and pronotum formations and impressions often occur in the c?', which arc not found, or less distinct in the ^ (such as horns in Bledius species). Sometimes the head in S is larger than in p (Philonthus et al.), or the fore-tarsi are di- lated, or the foremost antennal joints more densely haired on inner side, -15- (Page 10) or the antennae are longer; in several species of Anthobium the siatural corners of elytra in the ^ acutely produced. All sex-characters afford ex- cellent specific characters. Staphylinids are mainly animals of prey; they attack and live of other more feeble insects and their broods. This applies especially to all the large or medium sized species, which therefore fittingly bear the name "Rove- Beetles". However a considerable number live apparently also to some degree on rotting animal and vegetable matter; others prefer outflowing tree- sap. The species are found everywhere where sufficient nourishment is obtainable. They are particularly numerous at rotting pleints and in compost, at manure, carrion, in alluvium, on the strand under seaweed, in fungi, beneath bark in the burrows of the bark beetle, and in the crumbles from gnawing, in hol- lov" trees, at outflowing tree -sap; under leaves and moss, and under other plant cover they are found everywhere, especially on damp ground, in masses; very few species are found on flowers and flowering busches. Several spe- cies are myrmecophilous and abide in or by ant-hills in capacity of friends, foes or tolerated parasites; a few are found in humble-bee's nests and wasp abodes, in bird's nests, mouse-nests, and in mole-dwellings etc. Family Staphylinidae occupies, as far as number of species is concerned, absolutely the first place among our beetles. Inasmuch as there in this coun- try is found of ground-beetles (Pam. Carabidae and Cicindelidae) nearly 270 species, of snout-beetles (Fam. Curculionidae) about lt20, and of leaf -beetles (Fam. Chrysomelidae, Halticidae and Cassididae) about 23O species, the num- ber of heretofore found Staphylinids is upward to 700 species, fully a fifth -16- (Pa^e 11) of all our beetles (c. 3OOO species), and it is not unlikely that this con- siderable number, by enerj^etic investigation in all parts of this country, could further be increased by several species, which belong to the Staphy- linidae fauna of the nearest neighboring countries, though not yet found here. The Staphylinidae larvae of most of the genera are heretofore yet un- knov/n or not described. In Katurh. Tidsskr, 1864-65 and 1872-73 Prof. I.C. Schi0dte has described and illustrated several larvae, belonging to genera Velleius , ^Tjedius , Ocypus , Philonthus, "'laxitholinus , Oxyporus , Bledius, Pla- tystethus , Tachinus, Tachyporus , Stenus and gyntomium. Other descriptions by various authors: Ferris, Rey, Fauvel, Thomson et al. are found scattered in international scientific journals. The larvae are of form somewhat like the beetles and in appearance often reminiscent of these. They are inter alia distinguished by this, that the tarsi of the otherwise well developed legs have only 1, claw-shaped joint; the mouth lacks , the labrum; the antennae, which most often are 2- jointed, has as a rule a supplementary joint, (how- ever in Stenus 4- jointed without supplement); the cerci of the ninth abdom- inal segment are most often 2- jointed, rarely undivided; the anal segment is obliquely downwardly directed and is used for support or locomotion (push- ing-joint) (see Fig. 146). In genera of the group Staphylinini the dorsal shields of the abdominal se.gmcnts are divided in medial line, in the rest of the investigated genera they are entire. - The comparative considerable external likenes between larvae and beetles, is regarded as eui indication of, that the Staphylinids, especially the genera Xantholinus . laederinus. -17- (Page 11) Othlus et al., belong to the most ancient forms of beetles. The larvae, like the beetles are most often agile and active animals, of same mode of living as these. They shun the light and apparently are pre- dominantly nocturnal animals, which, as far as known, seemingly develope rather ^iuickly, most often during a few sujmner and autumn monthSj likewise the pupa stage is not long. The larvae and still more the pupae are without rearing difficult to determine specifically. The family Staphylinidae is divided according to the consistency of the prothorax: membranous or chitinized (see preceding) and consequently either visible or covered prothoracic spiracula, into two large principal parts (cf . Erichson Gen. et Spec. Staph, and Kraatz Ins. Deutschl. II), Further accord- ing to the insertion and structure of the antennae, the form etc. of the fore and hind coxae (see following key), these two principal parts are, in our fauna, divided into 11 (3 - 8) groups, of which the external and natural char- acteristics are conspicuous and as a rule easily recognized in the appearan- ce of the species (cf . appearance of Stenus . Fig ll<.8j Tachinus, Fig. 101; Oxytelus, ^ig. 160 et al.). It is seldom that within the natural group, les- ser deviations from the main characters of the group occur, and when e.g. Platystethus as an exception has membranous prothorax and only partly covered (Page 12) spiracula, the entire appearance of the genus however assigns its place among the Oxytelines (Fig. 158). The last i^roup, Micropeplini, differ in several respects rather peculiarly from the rest, without however having lost the -18- (Pa^e 12) Staphylinid-like characteristics (^ig 193). The genus Euaesthetus . which in Erichson and Kraatz is placed in the group Stenini, is, on account of 4- jointed tarsi and small eyes etc. separated from this eind placed in a different group , Euaesthetini. Otherwise the groups are here held within the boundary as found in Kraatz. Key to the Oroups. 1. Antennae 11- jointed, only exceptionally 10- jointed (Oligota, Hypocyptus ) 2. tetennae 9-jointed with knob-shaped distal joint (Fig. 193). Frothorax at each side anteriorly with a deep antennal groove... 11. Micropeplini. 2. Spiracula of prothorax behind fore-coxae exposed and visible, inasmuch as the prothorax back of the large, conical, protecting coxae is entirely membranous (?ig. 5 and 5) 3. Spiracula of prothorax as a rule not visible, but covered by the most often entirely chitinized, or at least only at middle membranous pro- thoracic chitin-shell; only exceptionally (Cryptobium. Plalystethus) are the spiracula entirely covered 2j.» 3. Antennae inserted on forehead near the foremost inner margin of the eye (Pig. lk> 19 et al.). Dorsum of elytra not separated from their epipleura by a carina, (except in Dinar da). Hind coxae broad, their trochanter rather long, supporting 1. Aleocharini. Antennae inserted before the eyes beneath side-margin of forehead (Pig. 101, 108). Slytral dorsum by a sharp carina separated from the deflected side-plane, (except in rrichophya). Hind coxae broad -19- (Page 12) with supporting trochanter 2. Tachyporini. 3. Antennae inserted before eyes beneath fore margin of forehead ('^ig.122, 123 et sil.). Elytral dorsum and side-plane not separated by any carina. Hind coxae conical with short, not supporting: trochanter. 3* Staphylinini » 4. Hind coxae conical or tap-shaped, posteriorly protruding 5. Hind coxae broad 7. 5. Antennae moniliform or without larger distal joint, inserted before the eyes beneath corner margin of forehead (Fig. 125. I3I et al.) Hind coxae rather large k» Paederini» Antennae with two-three larger distal joints. Hind coxae small 6. 6. Antennae with two larger distal joints, inserted far before the small eyes beneath fore-or corner-margin of forehead. Hind coxae narrowly separated. Tarsi 4- jointed (Pig. 143)««« 5. Euaesthetini. Antennae with three larger distal joints, inserted free on forehead between the very large eyes (Fig. 144. 148 et al.). Hind coxae broadly separated. Tarsi 5-ja>inted 6. Stenini. 7. Trochanter of hind legs short, not supporting. Antennae inserted be- fore eyes at base of mandibles beneath the callous -like corner mar- gin (Fig. 158, 160. et al.) 7. Oxytelini. Trociianter of hind legs large , supporting 3 . 8. Head on vertex with two, as a rule distinct ocelli, "^ore-coxae conical, prominent. Elytra comparatively long, often covering the greater part of abdomen (Fig. 177) 8. Omaliini. -20- (Page 12) 8. Head without ocelli, exceptionally with only one ocellus at middle of vertex 9 • 9. Fore-coxae broadly cylindrical, slightly prominent. Vertex sometimes with an ocellus in middle (Phlaeobium). Body short and proporti- onately broad (Fig. 189) 9. Proteinini. Fore-co3ra.e large, tap-shaped prominent. Head without ocelli. Body nar- row, linear. (Fig. 192) 10. Phloeocharini. ■21- (Pa^'e 13) L iroup Aleocharinl. (Erichson Kaf. Mk. Br. I, 1837, 283; ien. Spec. Staph. 1839, 33; Kraatz Ins. D. II,' 1857, 18. - Aleocharlna Thorns. Skand. Col. II, 1860, 238.- Aleocharlens Muls. et Rey Brevip. 3. - Aleocharinae Janjlb. Kaf. L.1. II, 1895, 17). Prothorax behind the fore-coxae is membranous and the spiracula open- ly exposed. Antennae 11-jointed, only exceptionally (Oll;ota) 10-joint- ed, - Inserted on forehead nei^rest the foremost inner margin of the eye. The body varies in form, more often more or less slender, evenly broad or feebly spindle-shaped than short and broad; the head porrect or some- what deflexed, rounded, transverse or ovate, sometimes anteriorly snout- formea elongated (Dl^lossa , ?/y llaena, Jymnusa) , posteriorly often feebly, sometimes strongly neck-formed constricted. Antennae (see above) as a rule more or less thickened distally, more rarely filiform and fine; the eyes only exceptionary large and strongly protruding ( ^yrophaena) , occasional- ly small, most often normal. Maxillary palpi are normally 4-Jointed, a very small fifth ^oint may occur (Aleochara) ; the last, the forth joint is always very fine, spiculiform; in the jenera v.ith snoutiike tapering head (Myllaena, Di^lossa and J^mnusa) the maxillary palpi are peculiarly lon^ with particularly elongated second and third joints, v.hich ordinari- ly most often are rather short; labial palpi are most often 3-jointed, sometimes only 2-Jointed (Silusa) . ■ 1- (Page 13) Pronotum differs In form; elytra not side -margined, only exceptionally (Dinarda) the deflected side-margin i s by a sharp ridge separated from the dorsum; they are most often somewhat longer than pronotum. more rarely shorter, scarcely reaching out over the metathorax, covering only the first two dorsal joints of abdomen, either entirely or the second Joint so incom- pletely that its chitinized posterior margin becomes visible. Abdomen is margined, very flexible, and bends when running, or preening or at copula- tion , often upwardly and forwardly. - The fore-coxae are conical and pro- minent, the middle-coxae ovate, contiguous or separated, hind-coxae broad and flat with appressed-*) trochanter; tibiae seldom spiniferous; the num- ber of tarsal Joints differ: either all tarsi are 5-jointed, or all are 4-Jointed, or fore-tarsi are 4-Jointed, the others 5-Jointed, or only the hind-tarsi are 5-jointed, the rest 4-jointed. Of the larvae belonging to the genera (species) of this group, the following are heretofore known; Dinarda, Phloeopora, Oxypoda , Atemeles, Lomechusa. Myrmedonia , Homalota, Fala^ria, Leptusa, Fhytotus. Thectura. jyrophaene , Qligota, Di°;lossa. (Page 14) According to form of head, and the number of ahtennal and tarsal joints, the numerous aleocharinids found in this country can be separated into 8 divisions, of which tl.e first three include the majority of jenera and species of the group, the following five only a few species each. Key to Divisions. 1. Head anteriorly not snoutlike elongated. Maxillary palpi short or rath- -2- •)Lylng closely downward on upper part of femur; translator. o (Page 14) er short, only exceptionally (Oxypoda praecox) somewhat elongate.: 2. 1. Head anteriorly snoutlike elongated. Maxillary palpi remarkably elon- gate, slender, their second and third joints very long (Fig. 99).; 4. All tarsi 5-jointed 1. Aleocharina. Fore-tarsi 4-jolnted, middle- and hind-tarsi 5-Jointed 2. Myrmedoniina. Fore-tarsi and middle-tarsi 4-Jointed, only hind-tarsi 5-jointed.... 3. Bolitocharina. All tarsi 4-jointed 3. 3. Antennae 11- jointed 4. Rygronomina. Antennae 10-jointed 5. Oligotina. 4. All tarsi 4-jointed 6. Siglossina. Fore-tarsi and middle-tarsi 4-jointed, only hind-tarsi 5-jointed. 7. Myllaenina. All tarsi 5-jointed 8. Jymnusina. 1, Division Aleocharina. The head rounded or .transverse, sometimes feebly pyriform tapering, but never anteriorly snoutllke produced; maxillary palpi short or rather short, their second and third joints normally long, only exceptionally (Oxypoda praecox) somewhat elongate. All tarsi are 5-Jointed. Key to Civieions. 1. Elytra with a sharp side-margin from humerus to hind corner, whereby dorsufL is separated from the abruptly deflexed side-margin. Pro- notum very Lroad with acute, retracted hind corners. Abdomen pos- teriorly strongly tapering (Fig, 13) 2. Dinarda ?i!annh. -3- (Page 14) 1. Elytra without such side-margins 2. 2. Head posteriorly distinctly, more or less constricted, porrect 11. Head posteriorly either not or very feebly constricted (Ocyusa) , more or less imbedded in pronotum, more rarely somewh&t porrect 3. 3. Maxillary palpi normally 4-jointed; the fourth Joint fine, spiculi- form. The metathoracic epiplura do not reech out behind elytral corners 4. Maxillary palpi 5-jointed, inasmuch as the tip of the fine fourth joint is set off as an extremely small (microscopic) fifth Joint (Fig. S). The metathorac epiplura reach out behind elytral cor- ners and are here very distinct. Fore- and middle-tibiae are in outer margin finely spinlferous. The body most often rather plump (Fig. 10) 1« Aleochara Jravh. 4. Tongue undivided and at tip rounded (Fig. 15). (In form and appear- ance the specie s resemble Aleochara) 5. Tongue cleft in middle-line into two e jual lobes or emargined at tip (Fig . 18) 6. t. Fore- and middle-tibiae at outer margin finely spiniferous. Abdomen slightly narrowed posteriorly, its fifth free dorsal Joint longer than the fourth. 3. M.icro.^lossa Kr. Fore- and middle-tibiae not spinlferous. Body equally broad; abdominal fifth free dorsal Joint as long as the fourth.: 4. "rataraea Thorns, e. Hind tarsal first Joint shorter than the claw-joint 7. Hind tarsal first Joint most often longer than the claw-Joint, rare- ly of same length at same (Ocyusa) 8. -4- (Pa-e 15) 7. Antennae compact, outer joints (4-10) close together (species live in ant hills) 5. Thiasophila Kr. Antennae not compact, outer joints not closely drawn together (species occur especially under bark of attacked trees or at treesap).... 6. Sticho,;lossa Fairm. 8. First joint of hind tarsi very elongated, distinctly longer than the claw-Joint 9. First joint of hind tarsi only as long as the claw-joint or insignil^- icantly longer than same 10. Ocyusa Kr. 9. Mandibles with a robust tooth right back of tip, whereby this appears to be divided. First joint of middle-tarsi as long as the follow- ing three Joints together 7. Dasyglosaa Kr. Mandibles with single tip. First joint of middle-tarsi at most as long as the following two joints together 10. 10. Mentum anteriorly feebly narrowing (Fig. 17); abdominal fifth free dorsal joint distinctly longer than the fourth. : 8. Oxypoda Mannh. Mentum anteriorly strongly narrowing (Fig. 22); abdominal fifth free dorsal joint not or only inconsiderably longer than the fourth, (pronotum short and broad) 9. Hy,;ropora Kr. 11. First joint of hind tarsi at least as long as the two following Joints together, most often longer than the claw-joint 12. First Joint of hind tarsi a little shorter than the two following joints together, distinctly shorter than the claw-joint (species live under bark of attacked trees) 17. Phloeopora Kr. -5- (Page 15) 12. The first three free dorsal abdominal joints depressed at base... 13. The first four free dorsal abdominal joints depressed at base 15. 13. Temples and jenae margined 14. Temples and genae not margined. Body very slender: 12. Chilopora Kr. 14. Tongue long and narrow (Fi^. 24); antennae rather slender. (Abdomen in our species polished, only simply and finely punctated) 11. Qcalea Er. Tongue short; antennae from the fifth joint robust. Abdomen very dens- ely punctated and dully silky-glistening. Head rather feebly con- stricted behind 13. Ityocara Thorns. 15. First antennal joint dorsally obliquely grooved or iaourved for re- reception of the second joint, the second joint curved at base (Fig. 28); antennae very robust 15. Amarochara Thoms. First antennal joint noroaal, without groove 16. 16. Temples and genae margined. V.esosternum at middle-line finely cari- nated. Thorax densely and often robustly punctated: 16. Ilyobates Kr. lemples and genae not margined. Mesosternum without carina. Thorax finely punctated 14. Calodera f.'annh. 1. Jenus Aleochara iravh. (Jravh. Micropt. 67; Erichs. ien. Spec. Staph. 158; Kraatz Ins. D. II. 82; .Jan:lb. Kiaf. U. II, ZL. - Aleachara -f- Baryodraa ( Polystoma Ihoms. Skand. Col. respectively II, "46, II, 249, III, 47. - Aleochart. j- baryodma f-Fheochara r Polyetoma r Geranota Unls. et Tey Brevip. 1874 respectively 14,44, 163, 16&, 189). Among the Aleocharlni the genus Aleochara is uniquely characterized in that, the maxillary palpi is 5-jointed, and labial palpi 4-jointei^. (Pa-e 15) « True, the last joint in both cases is patticiilaMy small, but is however distinguishable when suitably (microscopically) magnified, as one from the preceding joint set off tip of horny-like substance. (Fi^. S). Fig. 9. maxillary palpi of Aleochara fuscipes F. 1. 2. 3. 4. E. its five joints. The body of most of the species oi" this genus is rather thick and either slightly fusiform or rather evenly broad, more or less finely haired, occasionally Bomewhal roUgh-halred. The head considerably narrower than pronotum, defiettea" and not constricted behind, its temples and genae sharply margined; (Page 16) antennae most often short, as long as head and pronotum together, thickened distally, their first three joints somewhat elongate, and the third joint as long as or longer than the second, rarely shorter, the following miadle and next- last joints (4-lC) increasingly broader, more or less transverse; in few species (ruf icornis, spadicea) are the antennae long and slender. In our species the eyes little or not prominent, never large, sometimes rather small. The second and third joint of maxillary palpi is about of equal length, the third thickened toward tip, rarely (succicola Thorns.) more strongly tumid (Fig. 11), the fourth is fine and subulate, ordinarily shorter than the third, exceptionately thickened at base (succicola Thorns.) in all species provided with an especially small offset tip (see preced- ing), which forms the fifth joint of maxillary palpi. First joint of labial palpi is longer and thicker than the following, tiie. f burtih •especially small, yet distinguishable; the tongue broad and short, divided at middle into two eflected lobes. (Pa-e 16) Pronotum Is posteriorly most often as broad as elytra and narrowing anteriorly with rounded sides and rounded off hind corners; elytra togeth- er broader than long, their posterior margin inside the outer hind-corners only feebly or not dlicurved; not covering entirely the metathoraclc epi- mera, of which the hindmost rounded-off part reaches a little outside of, and are visible at the elytral outer hind corners. This is quite unique for this genus and affords most often a good Identification character. The elytral epipleura are sometimes (subgenus Polystoma and others) of even breadth, only at the tip roundly narrowing, but in most of the species narrowing from middle posteriorly. Abdomen is most often posteriorly tapering, more rarely of even breedtb, Its first three free dorsal joints depressed at base. Mesosternum in many species with a fine carina in middle-line (Fig. £a. subt^.Bar.yodma) . in others smooth (subg. Aleochara E. str.). The legs are as a whole rather slender than robust, in a few of our species (e. g. spadicea) especially slender; fore- and middle- tibiae finely spiniferous in outer margin; all tarsi 5-jointed; hind tarsal first Joint longer than the two following joints together. Sex-characters occur in several species, but are most often not con- spicuous. Ordinarily they amount to this, that the posterior margin of the sixth free abdominal joint in the o^is sllghtl_ Inourved , finely notch- ed or finely dentate; only in a single one of our species ( ruf icornl s) are they more singular. Fig. Sa. f/.esosternum of Aleochara moesta Jravh. with carina in middle-line. Aleochara species are found under leaves, in alluvium, at rotting (Page 16) plants, manure, carrion, fungi or outflowing tree-sap; several live ex- clusively at the beach. About 50 species are distributed throughout Middle and North Europe, of these about one half are heretofore found in this country. They can be divided into five subgenera (see key). Though strongly united by the peculiarities of aaxillary palpi aid labial palpi, these subgenera are in many respects ©(St a little different from each other, namely is subgenus Poly stoma deviating, and therefore by many authors (Page 17) treated as an individual genus. But also the other four subgenera are by some treated as independent genera (cf. Thorns. Skand. Col. II j Aleo- chara, Baryodma, III: Poly stoma; Muls. et Rey Brevip. Aleocharaires) . Key to Subgenera and Species. 1. Elytral epipleura of equal breadth, only at tip roundly narrowing; eyes small, shorter than temples; body of rather even breadth: 21. Slytral epipleura not equally broad, about from middle narrowing pos- teriorly; eyes normally large, as long as temples; body most oft- en fusiform (Fig. 10) 2. 2. Uesosternum between the well separated coxae without carina in middle- line. 1. subgenus Aleochara s. str. (!=-genuE Aleochara Thorns, and Mul s. ) 3. Uesosternum between the rather closely placed coxae with a carina in middle-line (Fig. &a.): 2. sub^'enus 5ar.yodma (=genu8 Baryodma Thoms. and Muls.) ^' 3. Elytra brownish-red with black sides, often also nark at base; anten- nae strongly thickened distally. L. 5. £-8 mm. i 1. A. fuecipes Fbr. -9- (Pag;e 17) 3. Elytra black, rarer brownish; antennae feebly thickened 4. 4. Pronotum entirely black, same length as elytra. L. 4-5 mm 2. A. brevipennis iravh. Pronotal sides most often brownish, elytra shorter than pronotum. L. 3-3.5 mm 3. A. fumata Er. 5. Pronotum uniformly punctated, without punctate rows 6. Pronotum along the middle with two separate punctate rows, intervals smooth, outside of the rows scattered punctation (subg. Coprochara Muls.) 19. 6. Abdomen at the foremost three free dorsal joints or entirely to the tip with dense or very dense punctation 7. Abdomen at the foremost free dorsal joints with scattered, or only in the transversal grooves dense punctation IC. 7. Abdomen rather strongly tapering; pronotum v.ithout side-bristles; -iieso- sternal carina sharp (subg, Baryodma s. str. ^'uls.) 8. Abdomen rather evenly broad, only tapering at the last joints, its sides otherwise almost parallel (subg. Isochara Bernh.) 9. 8. Elytra dully black, each with a blood-red spot posteriorly. L, 4-5 mm. 4. A. birunetata Oil v. Elytra entirely black; the species very small. L. 1.5-2.5 mm 5 . A. morion i ravh . S. Abdomen at the hindmost joints with somewhat isolated punctation; elytra black, each with a more or lees extensive reddish-yellow spot posteriorly. L. 5.5 mm 6. A. tristis Jravh. •10- (Pa-e 17) 9. Abdomen to the tip with very dense, smooth punctation; elytra reddish- yellow, most often v»ith a mutual, large, triangular spot at baee. L. 3.5-4.5 mm 7. A. crassiuscula Sahib. 10. Third joint of maxillary palpi toward tip feebly thickened, normal, the fourth shorter than tho third and not thickened at base... 11. Third joint of maxillary palpi strongly thickened toward tip, revers- ed-conical, the fourth joint proportionately long, about as long as the third, at base somewhat thickened (subg. Homeochara Muls.)* L. 2.5-3.5 mm 16. A. suocicola Thoms. 11. Antennal distal joint jn both sexes normal, at most as long as the two preceding joints together (subg. Polychara Muls.) 12. Antennal distal joint in the ^ as long as the three preceding joints together, in the p normal; abdomen in the transversal grooves with robust and dense, elsewhere with very fine and scattered punctation (subg. Dyschara Muls.). L. 2.5-3 mm.: 16. A. suocicola Thoms. 11. Antennal distal joint in both sexes normal, at most as long as the two preceding joints together (subg. Polychara Muls.) 12. Antennal distal joint in the d*as long as the three preceding joints together, in the (^ normal; abdomen in the transversal grooves with robust and dense, elsewhere with very fine scattered punctation (subg. Dyschara Muls.). L. 2.5-3 mm 17. A. inconsplcus Aube. 12. Elytral posterior margin inside the outer corners net incurve,. Blytra black, each with a reddish-yellow spot posteriorly. L. 3-4 mm B. A. bialgnata Er. Elytral posterior margin inside liuter corners feebly, yet distinctly produced, their color black or redd ieh-brown 13. -11- (Page 18) 13. Elytra entirely black or their outer posterior margin brownish. ... 14. Elytra brownish-red or chestnut brown 17. 14. First three free dorsal abdominal joints in the transversal grooves with robust punctation 15. Transversal abdominal grooves feebly or finely or not punctated. .. 16. 15. Abdomen irregularly punctated, transversal grooves 'with robust, else- where with fine and scattered punctation. Elytra as long as pro- notum; this a. most often distinctly rough-haired. L. 3-4.5 mm. 9. A. lanuginosa Irravh, b. finely prostrate-haired, pronotum, head and elytra lead-like glist- ening. L. 4.5-5 mm Sa. A. rufitarsis Heer. Abdomen with rather uniform, and dense, rather robust punctation. Elytra a little shorter than pronotum, this prostrately haired. L. 3-4 mm 10. A. ly,:aea Kr. 16. Pronotum distinctly narrower than elytra, rather finely and not dens- ely punctated, surface very finely shagreened, dully glistening. L. 3-4 mm 11. A. villosa Mannh. Pronotum only a little narrower than elytra, rather coarsely but not deeply punctated, surface not shagreened. L. 3.5-5 mm 12. A. moesto Er. 17. Elytra longer than pronotum, vivid brownish-red. 1. 4-5 mm 13. A. sanguinea Linn. Elytia hardly longer tlian pronotum, chestnut brown or brownish-red, occasionally darkly brown 18. -1?- (Page 18) 18. The three transversally jjrooved dorsal joints of abdomen with simj)le or sparse punctation back of grooves. Pronotum rather finely punctated. L. 4-4. 5mm 14. A. moerens iyllh. The transversally grooved dorsal joints of abdomen with rather dense and smooth punctation back of grooves. Pronotum finely punctated. Species broader. L. 4-5 mm 15. A. mycetophaga Kr. 19. Elytra entirely black. L. 3-4 mm 18. A. billineata Jyllh. Elytra black, each with a reddish-yellow spot posteriorly 80. 20. Elytral spot rather sharply bounded. L. 2.5-3.5 mm.: 19. A. nltida ^ravh. - Elytral spot more or less extensive, not sharply bounded. L. 2-3.5 mm 20. A. verna Say. 21. Antennae longer than head and pronotum together, slender 22. Antennae shorter than head and pronotum together; surface of forebody shagreened aensely, feebly glistening or dull. (Species live on the strand): 5. subgenus Polystoma Steph. (=genu£ Poly stoma Thoms. and Muls. ) 23. 22. Abdominal dorsal joints in the c^without sex-characters; hind-tarsi particularly long, et least as long as tibiae: 3. subgenus Bheo- chara (=rgenu6 Pheochara Muls.). L. 4-5.5 mm.: 21. A. spadicea Er. Abdominal first free dorsal joint in the o with a tooth, the second most often with a granule at middle. Abdomen strongly glistening; 4. subgenus Ceranota Steph. (s=-jenu8 Ceranota Mul s. ) . L. 5-7 mm. 22. A. ruficornis ir avh. 23. Forebody entlr-.ly dull 24. -13- (Page 18) 23. Forebody feebly glistening. L. 3.5-4.5 mm 83. A. grisea Kr. 24. Forebody with fine and rather scattered punctation. L. 4-5 mm 24. A. algarum Fauv. Abdomen rather robustly and densely punctated. L. 3-4 mm 25. A. obscurella Jravh. 1. Subgenus Aleochara s. str. Thorns. Muls. 1. A. fuscipes Fabr. (Fabr. Syst. Ent. 1775, 266; Jravh. Micr. 92; Erichs. Kaf. Mk. Br. I. 354; ien. Spec. Staph. 15&; Kraatz Ins. C. II, 86; Thorns. Skand. Col. II, 247; Muls. et Rey Brevip. 1874, 2C; ^anglb. Kaf. M. II, 20. - curtula joeze Ent. Beytr. 1777, 730). Our largest species; within the subgenus recognized by the color of elytra, and by the short, robust antennae. Black, glistening, rather finely haired; elytra brownish-red, at sides black or brownish-black; first two joints of the antennae, maxillary palpi, and legs brownish-red. (Page Ife) Sometimes the base of el- ytra is blackly shaded, antennae entirely black, and the legs pitch-brown with lighter tarsi. The body (Fig. lO) is proportionately thick and broad, fusiform; head finely punctated; antennae short and dlstally peculiarly robust, as a rule distinctly thickest at middle, the middle- and next-last joints mora than twice as broad as long. Pronotum is posteriorly about as broad as elytra, amply 1^ times as broad as long, anteriorly strongly, roundly narrowing, convex, rather finely and densely punctated, its sides without erect brist- les. Elytra are distinctly shorter than pronotum, with dense and rather ro- bust, somewhat scabrous punctation, their outer hind corners rounded off} -14- (Page 19) abdomen feebly tapering, the transversal grooves with indistinct, elwhere - and especially posteriorly - with rather robust, but not dense puncta- tion. L. 5-8 nun. In the C? the margin of the sixth free dorsal joint of abdomen slightly incurved, and smooth. It varies considerably in size; in large, robustly developed animals the color of elytra, antennae and legs is often darker than in the small. At carrion and rotting offal of animals and plants; distributed, but not frequent. 2. A. brevipennis Oravh* (3ravh. Mon. 169; Erichs. Kaf. Mk. Br. I, 356, Jen. Spec. Staph. 163; Kraatz Ins. D. II, 92; Thorns. Skand. Ool. II, 248; Muls et Rey Brevip. 1874. 28; Gaoglb. Kaf. M. II, 31). "'ithin the subgenus easily identified by the color, and by the dense- ly haired, dully glistening elytra. Fusiform, black, glistening, finely haired; elytra rather dull; anten- nal .base and the legs darkly brownish-red, femora often pitch-brown. The head with fine and scattered punctation; antennae rather slender, slightly thickened distally, their third joint longer than the second, the next-last only ik times as broad as long. Pronotum is posteriorly as broad as elytra, li times as broad as long, roundly narrowing antei lot ij<, finely and rather densely punctated, without side-brushes; elytra as lonj; as pro- notum, with very dense scabrous punctation, and densely grayish haired, due to this dully grayish glistening, their posterior margin inside the outer corners not or scarcely noticeably tnourved. Abdomen is more or less tapering, rather robustly, but not densely punctated. L. 4-6 mm. -15- (Page 20) It varies somewhat in size, and sometimes the elytra are feebly brown- ish and the legs red. Such specimens form the transition to the follow- ing species. On damp or semi-damp meadow- marsh- or forest-ground, everywhere com- mon. 3. A. fumata Er. (Erichs. Kaf. Mk. Br. I, 357; den. Spec. Staph. 166; Kraatz Ins. T. II, S3; 'Ihoms. Skand. Col. II, 248; Muls. et Key Brevip. 1874, 32; Janglb. Kaf. U. II, 31. - curta Sahib. Ins. Fenn. 400). Very closely allied to brevipennis. of which it likely is only an aberration. As a rule it is smaller than same, elytra shorter and abdom- en with more scatterd punctation; pronotal sides are most often trans- lucid brownish and the elytra brown; antennal base and the legs are reddish yellow or brownish red. L. 3-3.5 mm. Distributed as the preceding species, but less common. I have most often found it at the strand. 2. Subgenus Baryodma Thorns. (Subgenus Baryodma s. str. Muls. et Fey). 4. A. bipunctata Oliv. (Oliv. Ent. Ill, 42; Erichs. Kaf. Mk. Br. I, 355; Jen. Spec. Staph. 163; Kraatz Ins. D. II, 91; Thorns. Skand. Col. II, 249; Muls. et Hey Bre- vip. 1874, 49; Janglb. Kaf. M. II, 33. - intricate Uannh. Brach. 66). The form of body, color of elytra, and the very dense punctation of abdomen makes this species very easily Identifiable. Deeply black, modified gloss, finely haired; elytra black with a rath- er large, not sharply bounded blood-red spot anteriorly; the lejs, some- times also antennal base, reaaisn yellow. -16- (Page 20) Body fusiform wi'th greatest breadth across the elytra, posteriorly strongly tapering; head small, rather densely and finely punctated; an- tennae somewhat thickened distally, their second and third joints of e- qual length, the next-last feebly transverse; pronotum convex with strong- ly deflected fore-corners, posteriorly about as broad as elytra, 1^ times es broad as long, anteriorly strongly narrowing with rounded sides with- • out outstanding bristles, densely and finely punctated; elytra distinctly shorter than pronotum, robustly and especially densely scabrously punctated, and due thereto dully glistening, their posterior margin inside the outer corners not produced; abdomen strongly tapering, with rather robust, and all over, especially however anteriorly, very dense punctatlon, Mesoster- num in middle-line sharply carinated. L. 4-5 mm. Distributed throughout Middle and North Europe. It is principally found at manure, but also under leaves and moss and in alluvium, and is not rare in this country. 5. A. morion Gravh. (iravh. Kicr. 97; Erichs. Kaf. Uk. Er. I, 361; Jen. Spec. Staph. 175; Kraatz Ins. D. II, 108; Thorns. Skand. Col. II, 250; Muls. et Bey Erevip. 1874, 56; Janglb. Kaf. M. II, 33). (Page PI) Our smallest species; besides this easily identified by color and form. Deeply black, feebly glistening, finely haired; antennal bese, and legs pitch-br jwnish or brownish-red. The body is anteriorly proportionately broad, posteriorly tapering; the head small, with fine, scattered pynctation; antennae slightly thlck- • 17- (Paje 21) ened distallj', their third Joint longer than the second, the next-last 1^ times as broad as long. Pronotum short, posteriorly twice as broad as long and about as broad as the elytra, anteriorly strongly narrowing with rounded sides without bristle-hair, convex, finely and densely punc- tated; elytra a little longer than pronotum and with feebly rounded sides, rather dense and robust scabrous-punctation, their posterior margin inside the outer corners distinctly produced; abdomen rather strongly tapering, all over with fine, anteriorly dense, posteriorly more isolated punctati- on. Mesosternum in middle-line sharply carinated. L. 1.5-2.5 mm. Everywhere and common in this country, especially plenteous at manure, and excrements; also at rotting plants, under leaves and in alluvium. Distributed in the greater part of Europe, North Asia and North America. (Subgenus Isochara Eernh.). 6. A. trislis iravh. (Jravh. Won. 17G; Wuls. et Fey brevip. 1874, 72; Ganglb. Kaf. M. II, 34. - nigrlpes Mill., ?Craatz Ins. E. II, 50). Rather thick and of equal breadth, and together with this especially recognized by the color of elytra and the punctation of abdomen. Black, glistening, rather finely haired; elytra black, each with a more or less extensive yellowish-red spot on posterior margin; legs pitch- brown with reddish knees and tarsi. Forebody is somewhat rough-haired; head with fine and scattered punc- tation; antennae rather robust, their second and third joints about of same length, the next-last ones strongly transverse. Pronotum is poster- iorly nearly as broad as elytra, 1 '■ times as broad as Ibng, narrowing an- -18- (Pa-e 21) terlorly with rounded, bristle-haired sides, convex, with fine and smooth, but not dense punctation, rather strongly glistening; elytra as long as pronotum, with rather robust and dense scabrous punctation, their poster- ior margin inside the rounded off outer hind corners not inourv«d; abdomen almost of equal breadth, only tapeiing at the hindmost joints, prostrate black-haired, the transversal grooves of foremost dorsal joints robustly and very densely punctated, at the hindmost part of foremost joints and the following with less robust and somewhat more isolated punctation. Kesosternum is finely cerinated. L. 5,5 mm. It is destributed in Middle and South Europe, is said to be not infre- quent there, at manure. In this country it is heretofore only found sing- ly at Odense (5. 98. N. P. Jorgensen) and at Molbeak, Pilkeborg (fl. 03. Esb. Petersen), at the former place under mouldy plant-remnants. (Page 22) 7. A. crassiuscula Sahib. (Sahib. Ins. Fenn. I, 396; Muls. et Pey Brdvip. 1874, 65j )anglb. Kaf. M. II, 34. - tristis Erichs. Kaf. Mk. Er. I, 355; ien. Spec. Staph. 162; Kraatz Ins. B. II, 69; Thoms. Skand. Col. II, 252. - moesta 3ravh. Bernh. Staph. Pal. Fn. 34). From the preceding species, tristis Jravh. , to which it is closely al- lied, It is separated inter alia, by yellowieh-red elytra, which most often have a mutual, large triangular black spot at base around scutellum and along the suture; antennal base and the legs are brownish-red, knees and tarsi lighter. The body evenly broad, the surffice all over finely reticulated and lather feebly glistenlnj, smoothl^v haired. Head and pronotum with a little -19- (Page 22) finer punctation than in tristis, elytra with scabrous punctation, abdomen to the very tip with extremely dense, smooth and rather robust punctation. Mesosternum carinated. L. 3.5-4.5 mm. (cf. ian^lb., Kraatz). Said to be found especially at manure and rottinj plants, is distrib- uted throughout North and Middle Europe, but heretofore however not dis- covered in this country. (Subgenus Polychara Muls.). 8. A. bisi^nata Eir. (Erichs. Kaf. Mk. Br. I, 357; Jen. Spec. Staph. 166; Kraatz Ins. C. II, 104; Thorns. Skand. Gol. II, 250; Muls. et Rey Brevip. 1874, 88; Janglb. Kaf. U. II, 36. - laevigata ^yllh. Ins. Suec. II, 433). Recognized especiaiJy by 'the color of elytra, and their not incunrfei posterior margins. From nitida, which it resembles in appearance, it is easily separated by the lack of punctate rows of pronotura, Grlistening black, finely haired; elytra black, each with a more or less extensive yellowish-red spot posteriorly close to the suture; legs pitch-brcwn with reddish knees and tarsi. Father small and of even breadth; head finely and sparsely punctated; antennae thickened distally, their second and third joints of same length, the next-last ones rather strongly transverse. Pronotum is posteriorly as broad as elytra, 1^ times as broad as long, tapering anteriorly, with fine and very scattered punctation, strongly jlistening; elytra as long as pro- notum, with robust and rather dense scabrous punctation, their posterior margin Inside the outer corners not, or not distinctly produced; abdomen posteriorly narrowing but very little, not very densely, but rather smooth- ly and robustly punctated, more robustly than in nitida. Mesosternum cari- nated. L. 3-4 mm. -20- (Page 22) "idely distributed in Middle and North Europe. Not rare in this coun- try, at manure, carrion, under rotting plants, leaves and moss. 9. A. lanuginosa ^ravh. (Jravh. Micr. 94; Erichs. Kaf. Mk. Br. I, 356; len. Spec. Staph. 158; Kraat? Ins. E. II, 93; Thorns. Skand. Col. II, 252; Muls. et Pey Brevip. 1374, 110; ianglb. Kaf. M. II, 36). Easily identified especially by thr color, the rough hair vestiture of head and pronotum, and the punctation of abdomen. (Page 23) Glistening black; forebody with rather dense and long, more or less distinctly rough, hair* . atxiomen sparsely prostrate-haired; elytral pos- terior margin at middle most often reddish; legs pitch-black or pitch-brown with reddish knees and tarsi. The body is rather of even breadth and especially in larger animals somewhat thick; head and pronotum rather coarsely and densely, but not deeply punctated; antennae thickened distally, their third Joint some- what longer than the second, the middle and next-last ones transverse, about l| times as broad as long, pronotum :s posteriorly 'hardly as broad, as elytra, 1^ times as broad as long, narrowing anteriorly with rounded sides, its vestiture transverse-obllquely outwardly directed, and most often distinctly outstanding or rough; elytra as long as piConotum, rather robustly and densely punctated, and the vestiture as in this transverse- obllquely outwardly directed, biit less rough, their posterior margin in- side the outer corners distinctly produced; abdomen feebly narrowing pos- teriorly, the deep transversal grooves of the foremost dorsal Joints coarae- -21- (Page 23) ly and densely , punctated, but elsewhere with rather fine and scattered punctation. Mesosternum finely carinated. L. 3-4.5 mm. In the 5^ the posterior marsin of the sixth free dorsal Joint of ab- domen is finely serrated. Common everywhere at manure, carrion, under rotting plants, in alluv- ium, under leaves and moss. Not infrequently specimens are found of lanuginosa, in which the ves- titure of the forebody is almost prostrate. Such specimens presumably resemble the very closely allied Sa. A. rufitarsis Heer ( v 1 1 1 o sa Janglb.) from the middle European mountainous regions, In which however the fore- body is said to be lead-like glistening, the antennae slenderer and ab- domen more finely punctated. 10. A. ly^aea Kr. (Kraatz Berl. Ent. Ztschr. 1862, 317; Wuls et Hey Brevip. 1874, 115; 5an^lb. Kef. r/.. II, 38). From lanuginosa this closely allied species Is separated namely by, that the body is more slender, its hair vestiture finec and not rough on the forebody, elytra a little shorter, abdominal punctation finei in the transversal grooves, but elsewhere on the joints more robust. Black, glistening, finely prostrate-haired; elytral posterior margin often reddish; legs brownish-red; antennal base and the maxillary palpi often brownish. The head with fine and scattered punctation; antennae rather robust, their third joint somewhat longer then the second, the next-last ones almost twice as broau as long; pronotum le posteriorly about as broad es -22- (Page 23) elytra. It times as broad as long, anteriorly narrowing with slightly rounded sides, its dorsal side convex, finely and not densely punctated. The elytra are a little shorter than pronotum, rather densely and robust- ly punctated, their posterior margin inside the outer corners feebly eeiar- 2inedi :..bdomen only a little tapering, the transversal grooves robustly and densely, and elsewhere all the joints smoothly, rather robustly and densely punctated. Mesosternum is carinated. L. 3-4 mm. (Page 24) It is most often and most abundantly found in gnaw-crumblings in poplars, which have been attacked by the Cossus larvae, more rarely and singly un- der leaves and at excrements etc. Cistributed and not rare in spots. 11. A. villosa Mannh. (Mannerh. Brach. 67; Kraatz Ins. D. II, 94. - alutacea Muls. et Pey Erevip. 1874, 106). Closely allied to moesta Jravh., from which it is separated especial- ly by, narrower head, slenderer antennae, narrower, more finely punctated, finely transversally aciculated pronotum, also by more dully glistening elytra. Black, madified glistening, f inelyhaired ; antennal base and legs brown- ish, knees and tarsi lighter. The head Is narrow with almost linear sides, finely punctated; antennae toward tip feebly thickened, their second and third joints somewhat elon- gate and of equal length, the fourth longer than broad, the next-laet ones scarcely or very little transverse. Pronotum distinctly narrower than el- ytra, 1^ times as broart as lon;^, roundly narrowing anteriorly, rather flat- ly convex, finely and not densely punctated, the surface - like the rest of the dorsal part of the forebody - very finely transversally aciculated -23- (Page 24) and due thereto feebly glistening; elytra longer than pronotum, rather robustly and densely punctated, their posterior margin inside the outer oor corners flatly incurved, abdomen only very little tapering, the transvers- al grooves as well as the joints with very fine, scattered punctation, the posterior joints often nearly smooth. Metasternum carinated. L. 3-4 mm. Is said to mainly seek dovecots and larger bird's nests, and is dis- tributed throughout Middle Europe; in this country only a single specimen has heretofore been found in a horse-stable in Aalborg, sifted from straw and offal. (5. 93. ;^uthor). 12. A. moesta iravh. (Jravh. Kicr. 96; Erichs, Kaf. Mk. Br. I, 356; Jen. Spec. Staph. 170; Kraatz Ins. C. II, 99; Thorns. Skand. Col. II, 252; Muls. et Pay Brevip. 1874, 126; CJanglb. Kaf. K. II. 33). Among closely allied species especially characterized by the pronotal distinct, almost coarse punctation and the abdominal fine, scattered dou^- ble punctation. Black, glistening, rather sparsely haired; elytra sometimes brov^nish; antennal base and legs pitch-brown, tarsi reddish. The head rounded, rather robustly, but not densely punctated; antennae distinctly thickened distally, their second and third joints of equal length, the fourth transverse, the next-lest ones approximately twice as broad as long. Pronotum is a little narrower than elytra, posteriorly about 1^ times as broad as long, narrowing anteriorly with rounded sides, with rather coarse and dense, but not deep punctation. Elytra are a little longer than pronotum, robustly and rather densely punctated with a some- what sparse hair vestiture, which is almost directed straight hindwards; • 24- (Pa^e 25) their posterior margin is inside the outer corners slightly inoarved* Abdomen feebly tapering, strongly glistening, its transverse! grooves finely punctated or almost smooth, elsewhere the joints are with fine and very scattered punctation. Besides the more distinct punctation, the sur- face of the fourth and especially the fifth free dorsal joints with an extremely fine scattered punctation, v.hich only is descernable when suf- ficiently greatly magnified. Also head and pronotum bear traces of such ground-punctation. Mesosternum carinated. L. 3.5-5 mm. It varies to some extent in size, and in the color of elytra, and according to size in the distinctness of punctation. Smaller animals, especially those with brownish elytra may superficially seen be confused with succicola Thorns., of which the unique maxillary palpi however affords the distinguishing characteristic. It is found as well in hollow trees, in stables and outhouses as under leaves and moss, at rotting plants and tree-sap; is distributed and not rare. 13. A. sanguinea Linn. (Linne Syst. Nat. ed. X, 422; Uul s et Fey Bre'vip. 1974, 96; Janglb. Kaf. I'l. II, 39. - brunneipennls Kraatz Ins. D. II, IGO. - moerens Thorns. Skand. Col. II, 253). recognized by the proportionately long elytra, and their color, also by the abdominal punctation. Black, glistening, finely haired; elytra vlvjd brownish-red, occasio- nally with a Clark reflection at base, at the suture and along the sides; antennae rust-red or pitch-black, their base, maxillary palpi and the legs yellowish-red or brownish-red. -25- (Page 25) The head with fine and sparse punctatlon; antennae rather long and slender, their third joints a little longer than the second, the next- last ones transverse. Pronotum is somewhat narrower than elytra, poster- iorly amply ij times as broad as lon=j, narrowint; anteriorly, finely and not densely punctated, somewhat long-haired with several longer side-brist- les. Elytra 1 ^/^ as long as pronotum, finely and densely punctated, inside the outer hind corners slightly Incurved; abdomen feebly tapering, with fine end scattered piinctation, in the transversal grooves almost smooth. Its two or three next-last dorsal Joints in surface-ground with very fine, scattered puictulaa. Mesosternum is finely carinated anteriorly. L. 4-5 mm. In this country it is found in animal offal, bird-excrement, in hollow trees with bets, and in remains of bird's nests, but is rare or very rare. (Aalborgj Hvedholm, Fyen; Nykabing F.; Hiller^id). 14. A moerens iyllh. (3yllh. Ins. Suec. IV, 4S3; Erichs. Jen. Spec. Staph. 169; Kraatz Ins. D. II, 103; Muls et Rey Br6vip. 1874, 122; Janglb. Kaf. M. II, 40. -linearis Thorns. Skand. Col. II, 253). From san^uinea this species is separated mainly by, shorter, darker brown elytra, more distinct punctation of the abdominal transversal grooves also by the color of the last ventral abdominal joint. (Page 26) Black, glistening, distinctly and rather long haired; elytra ahest- nut-brown, sometimes darkly brown; abdominel tip brownish, the entire last ventral joint and the posterior half of the next-last, posterior margins of the preceding yentral Joints, also antennal base, and the legs reddish- yellow, sometimes darker; pronotal sides sometimes brownish, -26- (Page 26) Body rather narrow of equal breadth; head sparsely and finely punc- tated; antennae rather robust, their second and third joints about of same length, the middle and neitdast ones nearly twice as broad as lon^. Pronotum is posteriorly a little narrower than elytra, 1^ times as broad as lonj, distinctly narrowing anteriorly, rather finely and not densely punctated. Elytra as long as pronotum, rather robustly and dnesely punc- tated, their posterior margin inside the outer corners slightly incurved;; abdomen almost of even breadth, strongly glistening, the transversal grooves with rather robust and dense punctation, the dorsal joints elsewhere with fine and scattered punctation. Mesosternum finely carinated. L. 4-4.5 mm. Distributed everywhere in North and Middle Europe, and in the autumn often in great numbers in stem-mushrooms, namely in the eatable Boletus sodalis; in this country mainly in woodland regions, but rather local. Specimens with darkly brown elytra are easily separated from the similar moesta by more finely punctated pronotum and the denser punctation of the transversal grooves of abdomen. 15. A. mycetophaga Kr. (Kraatz Ins. D. II, 102; Muls. et Rey Erevlp. 1874, 118; 'Janglb. Kaf. M. II, 39. - lata Thorns. Skand. Col. II, 851). Very closely allied tc moorens. The color is alike in both; but myceto- phaga is (accd.to Kraatz) somewhat larger and broader, anteriorly and pos- teriorly more tapering. Antennae more robust, the next-last joints twice as broad as long. Pronotum and elytra somewhat finer punctated, while the punctation of the first three-four free dorsal joints of abdomen outside the transversal grooves is distinctly denser and smoother, rather robust and denpe. Mesosternum is carinated. L. 4-5 mm. -27- (Page 26) Distributed in Middle and North Europe, and like moerens especially in the autumn found in mushrooms, occurs in Skaane, but so far not yet with certainty denoted here, (Subgenus Homoeochara Uuls.) 16. A. succicola Thorns. (Thorns. Skand. Ool. II, 216; Muls. et Pey Brevip. 1874, 134; ianglb. Kaf. M. II, 41. - sparsa Heer Faun. Helv. I, 317). Among closely allied species especially recognized by, that the thira joint of maxillary palpi is more than ordinarily thickened toward the tip, so that it becomes strongly reversed conical; the subuliform fourth Joint is at base distinctly thickened and about as long as the third, longer than in the closely allied species. (Fig. 11). (Page 27) ^listening biaok, sparsely haired; elytra often posteriorly, more rarely entirely brownish; legs brownish black with reddish knees and tarsi. Sometimes the legs are entirely reddish-brown, and the antennal base al- so brownish. The body is rather narrov. ; the head with fine and scattered punctation; antennae rather robust, their third joint most often a little longer than the second, the middle and next-last ones about twice as broad as long. Pronotum is nearly as broad as elytra, anteriorly hardly narrowing, but the fore-corners strongly deflexed, the dorsum convex, lather finely and densely punctated, the rounded sides simple bristle-haired. Elytra as long as pronotum, rather robustly and densely punctated, their posterior marg^ Inside the outer corners distinctly lnourv9d . abdomen feebly ta- -28- (Page 27) pering, strongly glistening, the transversal grooves most often rather finely and densely punctated, rarely ' almost smooth, else\where the joints with simple punctation or smooth, r-^esosternum finely carinated. L. 2.5- 3.5 mm. — t'ig. 11. Maxillary palpi of Aleochara succicola Thoms. with strongly thickened third joint. At outflowing tree-sap, sometimes numerous; more singly under rotting plants. In this country mostly in woodland regions, but rather rare or local; distributed throughout North and Middle Europe, but increasingly rarer northward, (Subgenera Dyschara Muls.). 17. A. inconspicua Aube. (Aube' Ann. Soc. Ent. Fr. 1850, 312; Kraatz Ins. D. II, 107; Muls. et Hey Erevip. 1874, 142; GJanglb. Kaf. M. II, 40). A rather small species, remarkably in, and recognized by the long distal joint of the antennae in the 5"' (Fig. 12) and by the deep, coarsely.; and denselv punctated transversal grooves of abdomen. Jlistening black, all over rather long haired; elytral posterior mar- gin sometimes brownish; legs reddish- or pitch-orown with reddish knees and tarsi. The body narrow fusiform; the head almost Impunctated, strongly glis- tening; )t,he antennae rather slender, their third joint most often distinct- ly longer than the second, the next-last ones feebly transverse, distal joint in the O as long as the two, in the ^ as the three preceding joints together. Pronotum somewhat narrower than elytra, ih times as broad as long, feebly narrowing anteriorly with rather strongly rounded, simple bristle-haired sides, convex, finely and sparsely punctated. Elytra a -29- (Pa^e 27) little longer than pronotum, robustly and rather densely punctated, and with transverse outwardly directed hair vestiture, their posterior mar- gin inside the outer corners slightly emarginated; abdomen rathsr equally (Page 28) broad, strongly glistening, its transversal grooves deep, narrow, coarse- ly and densely punctated, but all joints elsewhere with very fine and scattered punctatlon. fiesosternum finely carinated. L. Z.L-Z mni. Distributed in Middle Europe; very rare in this country and hereto- fore only found singly at Haderslev, Odense and Hillerjefd under rotting plants and in compost. Fig. 12. The last four antennal joints in Aleochara inconspicua Aube. Q and <5^ . (Subgenus Coprochare Muls.). 18. A. billineate Jyllh. (lyllh. Ins. Suec. II, 436; Kraatz Ins. D. II, 105; Thorns. Skand. Col. II, 2E4; Muls. et Rey Br^vip. 1874, 147; Janglb. Kaf. M. II, 41. - nitida var. Erichs.). Pronotum of this species like in the two following species with. two distinct punctate rows along the middle, separated by a smooth interval. By this they are eaeily separated from the other species of this genus. From nitida Jravh. , to which it in form and punctation is very closely allied, and of which it sometimes is considered as a variety (see Erich- son), it is separated namely by the color of elytra. Jlistening black, finely haired; elytra entirely black or only brown- ish at posterior margin; legs brownish black with brovnish-red tarsi. The body is rather narrow and of equal breadth; the head proportiona*e- -30- (Page 28) ly large, smooth at middle, on sides with scattered and rather robust punctation; antennae rather short and robust, their second and third joints of same lingth, the nextlast ones strongly transverse. Pronotum is pos- teriorly as broad as elytra, 1^ times as broad as long, feebly narrowing anteriorly with rather strongly rounded sides, convex, along the middle v.ith two somewhat irregular, here and there several-rowed, rather coarse- ly punctated punctate rows, separated by a smooth interval, the sides el- sewhere with scattered, rather robust punctation, as well as the head strong- ly glistening. Elytra as long as pronotum, coarsely and rather densely punctated, their posterior margin inside the outer corners scarsely emaF— gined. nbdomen only feebly tapering, rather densely and robustly punc- tated, especially anteriorly. MeEOsternum carinated. L. 3-4 mm. It is especially encountered at manure, but also under rotting plants, at the strand under seaweed and remnants of animals. Distributed and not rare. 19. A. nitida Jravh. (Jravh. Uicr. 97; Erichs. Kaf. tik. Br. T, 358, (ex parte); Gten. Spec. Staph. 168 (ex parte); Kraatz Ins. E. II, lOE; Thome. Skand. Col. II, 254; Muls. et Rey Brevlp. 1874, 151; ^anglb. Kaf. U. II, 42). GUlstening black, sparsely haired; Elytra each with a rather sharply bounded, yellowish-red spot anteriorly at the suture; legs black with brownish-red tarsi. In regard to form and punctation it resembles tho preceding species. As a rule it is a little smaller than same, and the punctation as a whole 8 little finer, the third antennal joint hardly us long as the second; •31- (Page 29) the punctate rows of pronotum are less distinct than in bilineata , and the punctures in these often fewer. Elytra can occasionally be feebly metallic glistenin*. Otherwise it is easily separated from bilineata by the yellowish-red spot oil elytra. Mesosternum finely carinated. L. 2.5-3.5 mm. 20. A. verna Say. (Say Transact. Am. Entom. Phil. VI, 156; Ganglb. Kaf. M. II, 4,?. - binotata Krastz Ins. D. II, 106; Uuls. et Rey Brevip. 1874, 156. - lonjula Thorns. Skand. Col. II, 254). Glistening black, finely haired; elytra each with an obliterated or not sharply bounded, and often extensive yellowish-red spot at tip near- est the suture, more rarely almost entirely yellowish-red or entirely black; antennal base and the lejs most often brownish-red. Much like nitida, as a rule a little smaller, also slenderer and more evenly broad. Antennal third Joint distinctly shorter than the second; the punctate rows of pronotum are distinct, and most often set in slightly deepened, posteriorly groove-like impressions; the elytral spot is not sharply bounded, often extensive or entirely obsolete; puntation of ab- domen is denser and namely of the hindmost joints also more robust than in the preceding species. Mesosternum finely carinated. L. 2-3.5 mm. Much lees common than nitida, most frequently found on the strand under seaweed and at remnants of animals. 3. Subgenus Rheochara Muls. ot Pay. ?1. A. spadicea Er. (Erichs. Kaf. Mk. fcr. I, 300; ien. Spec. Staph. 61; Kraatz Ins. D.II. 98; Muls. et Rey Brevip. 1874, 165; Janglb. Kaf. iJI. II, 42. - procera -3?.- (Page 29) Erlchs. Sen. Spec. Staph. 61; Kraatz Ins. T). II, 97). More than others of our Aleochara this species is distinguished by blender antennae and very long legs; namely the hind-tarsi are peculiarly elongated and thin. Pitch-black or pitch-broun, glistening, grayish-yellow haired; elytra pitch-brown or chestnut brovn; posterior margins of the ventral abdominal joints most often reddish-brown; antennal base, maxillary palpi, and legs brownish-red. - In teneral animels the brownish color is more predominat- ing and lighter. The body is rather narrow and of equal breadth; the head proportio- nately large, somewhat narrower than pronotum, finely and sparsely punc- tated; eyes rather small, ovel; antennae long slender, only feebly thick- ened distally, their second and third joints elongate, nearly of same length, the next-lf/st ones hardly transverse; pronotum about as broad as elytra, 1^ times as broad as long with almost smoothly rounded sides, slightly convex, rather finely and densely punctated; elytca either a little shorter than pronotum ( spsdicea Er.) or tis long as same (^rocera Er.) rather densely and robustly scabrously punctated with reclinate -(Page 30) hair vestiture, their posterior margin Inside the outer corners distinct- ly tBoarved ; abdomen rather evenly broad, the transversal grooves with rather dense and robust, elsewhere with fine and scattered punctatlon; legs very long and slender; hind tarsi fully as long as hind tibiae, their first joint as long as the following three joints together. L. 4-F.? mm. This peculler species, which at first glance recalls an Ocalea . Is according to latest observations Loth from here (E. Fosenberg, author, et.al.) -33- (Pa^e 30) and from Uiddle Europe a steady guest in the underground abodes of moles, where It presumably chases various smaller parasites: mites, fleas and the like. It is distributed In Middle Europe, and is found many places in this country, especially in North SJaelland, most often in mole habitats, but exceptionally also at humble-bee's nests and under leaves (Brede, Kol- ding). It is found in England, but heretofore seemingly not in Sweden or Norway. 4. Subgenus C^ranota Steph. 22. A. ruficornis Jravh. (Jravh. y.icr. 91; Erichs. vien. Spec. Staph. 170; Kraatz Ins. D. II, 84; Muls. et Rev Br^-vip. 1874, 196; lianglb. Kaf. U. II, 43). Among our Aleochara species distinguished and recognized by the pecu- liar sex-characters of the '^^^ . Light rust-brown or rust-red, glistening, finely and sparsely gray- ish-yellow haired; the head, base of abdominal Joints snd often also the middle plane of pronotal dorsum pitch-brown; entonnal base and the legs reddish yellow. The head is rather small, at middle with scattered, at sides and pos- teriorly denser, more robust punctation; eyes small; antennae rather long and slender, slightly thickened distally, their third Joint distinctly longer than the second, the next-last ones feebly transverse. Pronotum about as broad as elytra, 1^ times as broad as long with rather strongly rounded sides, slightly convex, rather finely and densely punctated; el- ytra as long as pronotum, very densely and quite robustly scabrously punc- tated, their posterior margin inside the outer corners distinctly tuourvad — *^* ■ (Page .-^0) Abdomen slightly tapering, strongly glistening, the transversal grooves with robust and rather dense punctation, the joints elsewhere with more scattered, and especially the hindmost also much finer punctation. L. 5- 7.5 mm. In the o^ the first free dorsal joint of abdomen posteriorly at middle with a robust, obliquely hindward directed tooth, the second joint with a corresponding small granule; the fifth free joint at middle before pos- terior margin with a short transversal plica, and the dorsal side of the sixth with granulated punctation. It varies considerably in size, and iii appearance somewhat i-esembles a Myrmedonia. It lives on forest ground under leaves and is most often found in company with roaming ants, namely Formica rufa, however also at outflowing tree-sap, occasionally in alluvium, is distributed throughout Middle Europe, but in this country is heretofore found only in southerjT. Jutland: Wadskov at S;e)nderborg V'l . "'ustnei) and later in Fredsted at Ra- derslev (7. 1907, J. Andersen). It may presumably also be found in other places within the region of our fauna. (Page 31) 5. Subgenus Poly stoma Steph. 23. A. grisea Kr. (Kraatz Ins. D. II. 96. Kote; I.'.uls. et Rey Br<^vlp. 1874, ]80; C;anglb. Kaf. M. II, 45. - nitidula Ihoms. Skand. Col. IX, 216). "Within the subgenus this species is separated from the following two especially by the distinct though feeble gloss of forebody, and by the coarse and dense punctation of elytra. -35- (Pa^e 31) jrayish-black, whitish-gray haired; pronotum and elytra moderately, head and abdomen more strongly glistening; antennae black or brownish; legs pitch-brcwn with lighter knees and tarsi. The body is rather narrow and evenly broad; the head at middle smooth, the sides with coarse not dense punctation, surface very finely transvers- ally aciculated; antennae rather short, feebly thickened distally, their third joint as long as the second, the fourth as long as broad, the next- last two about twice as broad as long. Pronotum is narrower than elytra, ij times as broad as long, anteriorly roundly narrowing, its dorsum with rather coarse and not dense punctation, surface very finely reticulated; its rather sparse, glistening vestiture is from middle-line outwardly di- rected. Elytra a little longer than pronotum, haired like same, but with coarser and much denser punctation. Abdomen with more or less fine, scat- tered punctation. L. 3.5-4.5 mm. Distributed at all our coasts and not rare on the strand under sea- weed, and at animal remnants. 24. A. al,;arum Fauv. (Fauv. Ann. Soc. Ent. Fr. 186?, 92; Muls. et Rey Erevip. 1874, 173; ianglb. Kaf. M. II, 45. - grisea Thome. Skand. Col. Ill, 48). Easily idenrified by the entirely dull forebody, and by the scattered punctation of abdomen. dray-black, rather finely whitish-gray haired; forebody completely dull, abdomen very feebly glistening; antennae pjtch-black or brownish; legs brownish-red, femora often darker. •36- (Page 31) Ordinarily larger and more robust than the preceding spefcies, rather equally broad and somewhat flatly depressed. The surface of forebody is especially densely, reticulated sha^reened and entirely dullj sides of the head with rather isolated and robust punctation, along the middle not punc- tated, very sparsely haired; antennae short, strongly thickened distally, their third Joint not fully as long as the second, the fourth transverse, the next-last ones over twice as brogd as long. Pronotum nearly as broad as elytra, li times as broad as long v.ith smoothly rounded sides, from (Page 32) middle-line outwardly directed sparse hair-vestiture , fine, isolated punc- tation, the single punctures are encircled by a particularly fine, not reticulated ring. Elytra a little longer than pronotum, punctated and hair- ed like same; abdomen evenly broad, fine and scattered punctation, in sur- face reticulated. L. 4-5 mm. Eistributed at all cur coasts, but not everywhere common; under sea- weed and at remains of animals. Also founiJ singly in alluvium at Esrom *) lake, about tvjo miles from the strand (author). 25. A. obscurella >ravh. (Jravh. Mon. 159; Erlchs. Gen. Spec. Staph. 176, Kraatz Ins. D. II, 96; Thomf. Skand. Col. IX, 219; UIuls et Pey Brevip. 1874, 184; ^anglb. Kaf. LI. II, 46). In relation to al-Tarum especially recognizeable by the vestlture of forebody, end by the gloss of abdomen; from _anslb. Kaf. M. II, 55. - praetexta Erichs. Kaf. M. Br. I, 361; Jen. Spec. Staph. 176; Krautz Ins. T. II, 82). Besides by the form of body, and other above mentioned jeneric char- acters, especially identified by short pronotum and color of elytra. Blach or pitch-brown, somewhat glistening, finely yellowish -gray hair- ed; elytral suture and posterior margin red; tip of abdomen, most often (Page 40) also posterior margins of its Joints, antennae, mouth-parts, and legs red- dish-yellow. The head is proportionately large, however somewhat narrower than pro- notum, with especially fine and scattered or scarcely detectable puncta- tion; antennae short, their third Joint shorter than the second, the fol- lowing outer joints (4-10) rather strongly transverse and nearly of equal breadth. Pronotum is short, as broad as elytra, more than twice as oroad as long, feebly narrowing anteriorly with rounded sides and almost rect- angular hind corners, slightly convex, isolated and very fine punctation. In the O with a flat, occasionally double impression at middle posterior- ly; elytra somewhat longer than pronotum, with rather dense and fine, feeb- -51- (Page 40) le scabrous punctation; abdomen equally broad and as broad as forebody, the foremost dorsal joints with rather fine and dense, the last ones with more isolated punctation. L. 2.5-3 mm. It lives mainly indoors, especially in old belfteries, mills, wood-sheds, cellars and barns in offal, also in beehives, which are not kept clean, in hollov; trees with ants (Lasius f uli.i^inosus) ; more rarely found on for- est :^round under leaves and in old bunches of hay (author). Distributed, but as a whole rare. 5. 5enus Thiasophila Kr. (Kraatz Ins. D. II, 69; Thorns. Skand. Col. II, 245; Muls. et Pey Brp'- vip. 1874, 383; CJanglb. Kaf. M. II, 86). Body rather plump and of equal breadth, posteriorly a little tapering, slightly convex, finely haired; the head much narrower than pronotum, not constricted behind; eyes not large, nor protruding, temples and genae mar- gined; antennae rather short and robust, their outer joints (4-lC) not barbated, very compact, a peculiarity which especially seems developed in staphylinids, which like the species of this genus are rayrmeoophile and firm mound-dwellers. Maxillary palpi rather slander, their last joint subulate and much shorter than the next-last; the three joints of labial palpi about of same length; the tongue narrow and cleft (Fig. 16). Pronotum at least as broad as elytra, its posterior margin on each si- de distinctly produced and posterior corners thereby prominent, almost rectangular; elytra very little longer than pronotum, their posterior mar- gin inside the outer corners distinctly ^nourved, abdomen of equal breadth with forebody, only tapering frem the last two or three joints; its first -52- (Page 40) three free dorsal joints feebly depressed at base, the fourth as lon^ as the fifth; the le^s rather slender; ell tarsi 5-jointed; first joint of hind tarsi shorter than the following two joints together, much shorter than the claw-joint. The whole existence of the species seems closely connected with certain ant species, and the life in their mounds. They are not found, or only casually outside the mounds. Observations indicate that they here assist in destroying animal offal, which constitutes their main nourishment. The ants tolorate them, and rarely attack them, notwithstanding they run (Page 41) about in the densest ant-crowd; when the ants move, the Thiasophjla wander along with them. Their red- and blackish-brown color harmonizes well viith that of the ant-hosts. In Middle and North Europe about 3 species are distributed, which are much alike. They are also found in this country. Key to Species. 1. Antonnal outer joints (6-10) feebly transverse, only li times as broad as long 2. Antennal outer joints (6-10) strongly transverse, twice as broad as long. L. 2.5 mm 3. T. inguilina Mark, 2. Antennal third Joint longer than the second, pronotum dull. L. :? mm. 1. T. annulate Er. Antennal third joint only as long as the second; pronotum glistening. L. P-P.5 mm 2. T. canaliculata Muls. -53- (Page 41) 1. T. ari.";ulata Er. (Srichs. Kaf. Mk. Br. I, 360; Gen. Spec. Staph. 17^; Kraatz Ins. P. II, 7Ci Thorns. Skand. Col. II, 246; Muls. et Key Bre'vip. 1674, 386; ;anglb. Kaf. M. II, 86). Lighter or darker reddish-brown ttntnstrup ^ams, and in St. Dyrehave at Hillerjid, especielly in the spring, author).- Teneral specimens with brownish abdominal tip occur; they resemble thereby a close- ly allied species, rupicola Pye, which is found in England. (Page 56) 11. 0. humidula Kr. (Kraatz Deri. Ent. Ztschr. 1865, 414; Muls. et Key Br^vip. 1874, 244; 3anglb. Kaf. U. II, 65. - umbvata Erlchs. Kaf. Mk. Br. I, 344; (Jen. Spec. Staph. 144; Kraatz Ins. D. II, 16fl). •81- (Page 56) In color most like opaca and 'Aithin the subgenus Podoxya namely re- markable by its Sphenoma-like lar^e pronotum, of which however the dorsum is smaller than that of the elytra. Black or pitch-black, rather glistening, very finely haired; elytra most often brov*n; accasionally pronotum, especially its sides is also brownish; tip of abdomen and posterior margins of its foremost joints as a rule reddish; antennal base and the mouth-parts brownish-red; leg-? yel- lowish-red. In teneral animals the brov.nish color is more predominating and lighter; immature animals are yellowish-brown. The head is finely and very densely punctated; antennae slender, only feebly thickened distally, their third Joint most often distinctly short- er than the second, the next-last ones feebly transverse. Pronotum is pro- portionately large, posteriorly as broad as elytra, however hardly 1^ times as broad as long, anteriorly roundly narrowing, its hind corners entirely rounded off, dorsum rather convex, finely and very densely punctated, with- out impressions; elytra distinctly longer than pronotum, finely and especi- ally densely puncteted, their posterior margin inside the outer corners strongly Inourv^d; abdomen strongly tapering, all over viry fine and dense punctatlon, silky-glistening haired, on Joints and at tip with numerous bristles. L. 3.5 ram. Distributed in Middle Europe and also found in Finland. An immature specimen of an Oxypoda from Tisvllde, vhlch I have seen, is doubtlesF thie epeclep. It is found in miry, clayish ground under offil of reeds (15. 5. 1910. Engelhart). -82- (Page 56) 12. 0» umbra ta ilyllh. (iyllh. Ins. Suec. II, 424; Thorns. Skand. Col. Ill* 19; Muls. et Rey Brevip. 1874, 3C7; Janglb. Kaf. M. II, 66. - cunlcillna Erichs. Kef. Mk. Pr. I, 348; Gen. Spec. Staph. 149; Kraatz Ins. T,. II, 169). Fusiform like opaca, which it in form resembles, but is only half as large, identified especielly by the color, and by comparatively robust, rather strongly thichened antennae, by strongly tapering abdomen and long first joint of hind tarsi. Pitch-black or pitck-brov.n v.ith lighter sides; elytra, tip of abdomen, and posterior margins of its joints lighter or darker reddish brov.n; an- tennal base, and mouth-parts brownish-red; legs reddish-yellow. The head is narrov;ar than pronctum, both very finely and densely punc- tated; antennae hardly longer than heed and pronotum together, rather ro- bust and strongly thickened distally, their third joint distinctly short- er than the second, the next-last ones about tv;ice as broad as long, distal (Pago 57) joint obtusely tapering. Pronotum is posteriorly as broad as elytra, amply 1^ times aF broad as long, anteriorly distinctly narrowing with slightly rounded sides and rounded off obtuse-angular hind corners, slightly convex, most often with a feeble or suggested foves before scutellum. Elytra almost '/^longer than pronotum, finely and especially densely punctated, their pos- terior mprgin inside the outer corners strongly incurved; abdomen strong- ly and smoothly tapering, all over extremely finely and extremely densely punctated, distinctly silky glistening gray-haired with few side-triatles. First joint of hind tarsi is longer than the three following Joints togeth- er. L. 2.5-3 mm. -83- (Page 57) Distributed all over and not rere on damp and semi-damp ground under leaves and rotting plants, often numerous in alluvium and in compost. 13. 0. exi.^ua Er. (Erichs. Kaf. W. Br. I, 348; Gen. Spec. Staph. 150; Kraatz Ins. D. II, 174; Mu1l=. et Rey Br^vip. 1874, .'516; Sanglb. Kaf. U.. II, 68). A very small, narrowly fusiform species, of which the principle char- acter lies in the punctation of the abdomen. Black or brownish-black, finely haired end rather glistening; elytra and abdominal tip most often brovn or brownish-red; sometimes pronotum is also brownish; antennal base brownish-red, legs reddish yellov. The head is rather bjoad, however narrower than pronotum, very finely and rather densely punctated; antennae slightly thickened distally, their third Joint shorter than the second, the next-last ones feebly transverse. Pronotum posteriorly as broad as elytra, 1^ times as broad as lonj, nar- rowing anteriorly, rpther convex, very finely, densely punctated, v.ithout middle-groove or trace of transverse fovea posteriorly. Elytra as long as pronotum or shorter than same and with somewhat more distinct, feeble sca- brous punctation, their posterior- margin inside the outer corners feebly Incurved; abdomen tapering, its first two free Joints finely and rather densely punctated, the third and fourth with scattered punctation, the fifth almost smooth; abdominal sides tovard the tip heavily bristle-baired; first joint of hind tarsi only as long as the two following, rather short. Joints together. L. 1.5-2 mm. At first glance it very much reseroblos a small Homt'lota with tapering abdomen (t.speclslly Horn, py^^ma'^a), but its 5-jointed fore-tarsi, and the more (than in any like Homalota) elongated first Joint of hind tarsi, soon shows the disagreement with this ^jenus. -84- (Psj9 57) Tt lives principally on moist sandy ground, and is distributed in North and Middle Europe, but in this country is seemingly rare or very rare, most often found on the strand under seaweeds or in the nearness of the strand (Ska^en, Aalborg at the F„orl, Tisvilde et al.)« 14. 0. exoleta Er. (Erichs. Jen. Spec. Staph. 14D; Kraatz Ins. D. II, 179; Muls. et Pey Bre'vip. 1874, £85; 3anslb, Kaf. M. II, 69. - riparia Thorns. Skand. Col. Ill, 2C). (Paje £8) Amonj closely allied species principally recognized by the color, by the most often distinctly tapering form of abdomen, and the scabrous very dense punctation of elytra. Narrowly fusiform and somev.hat flatly convex; very finely and rather densely jray-haired, modulated or feeble gloss; livid brownish-yellow; the head, and a ba^d across the third, fourth, and bese of fifth free ab- dominal joints pitch-black or pitch-brovnish; antennae brownish, their base, and the legs reddish-yellow. In most of the individuals pronotum and abdominal tip are lighter brownish-yellow than the oftenest darkly shaded elytra. Head with very fine, dense punotation; antennae fine at base, distinct- ly thickened distally. their third Joint shorter than the second, the next- last ones about twice as broad as long. Pronotum is posteriorly as broad 86 elytra, li times as broad as long, feebly roundly narrowing anteriorly, with rounded of f-obtuse-angulur hind corners, dorsum flatly convex, vary densely and finely punctated, most often without transverse fovea posteri- orly. -85- (Page 55) Elytra a little longer than pronotum, with very dense, fine scabrous punctation, their posterior margin inside the outer corners incurved; abdomen distinctly tapering, all over very finely and densely punctated, silky glistening haired, first Joint of posterior tarsi as long as the three following joints together. L. 2.5 mm. On account of the somewhat elongate third joint of maxillary palpi this species is sometimes placed v;ith subgenus Baeoglene (see Janglb.), but less correctly; it is far from being as elongated as in the follow- ing species. Distributed throughout Europe; with us it is rare or very rare. (Aalborg in leafmould 4. 95, 9. 95. author; at Esrom lake in alluvium e. 08 author); also found in Skaane (Thorns.). 4. Subgenus Baeo,;;lena Thorns. 15. 0. preecox Er. (Erichs. Sen. Spec. Staph. 149; Krautz Ins. D. II, 176; Thorns. Skand. Col. IX, 249; Muls. et Rey Bre'vip. 1874, 289; Sanglb. Kaf. Iv'. II, 70). A very small peculiar species, especially distinguished by remarkably long maxillary palpi, of which the third joint is very slander and elon- gated, as long as the antennal first and second joints together, the sec- ond almost as long, but the fourth especially small, short a'?! fine. (Fig. 20). The body is fusiform, unicolorous reddish-yellow or the abdominal mid- dle-joints brownish yellow at base, all over very finely haired, somewhat glistening. The head small, anteriorly somewhat tapering, especially finely, dense- ly punctated; antennae cmoothly thickened distally, their third joint much -86- (Page 59) shorter than the second, the next-last ones twice as broad as long. Pro- notum posteriorly as broad as elytra, 1^ times as broad as long, anter- iorly rounded and strongly narrowing, hind corners almost rectangular, dorsum rether convex, very finely, densely punctated, without impressions. Elytra as long as pronotura, densely and finely, somewhat more distinct- ly punctated than same, their posterior margin inside the outer corners strongly incurved; abdomen strongly tapering, silky glistening, all over with especially fine and dense punctation, the hindmost joints and at tip endowed with long black bristles. Hind tarsi long and fine, their first joint as long as the three following joints together. L. 1.5-2 mm. Its coloring reminiscent of botb annularis and recondita. but it is smaller and more fusiform than either of these species. The head is small- Sri the antennae finer, elytra not as short as in annularis, hind tarsi much finer end longer than in recondi ta; but especially its long maxillary palpi will always puovide a reliable division-mark. Fig. SO. Head with antennae and maxillary palpi of 0. pi aecox 3r. Hnder leaves and moss on seml-raoist forest t.nd marshy ground; very rare in this country (Marsh at Ililler^d 4. C6, et al. author), also found In Skaane (Thorns.), distributed in Middle Europe. 5. Subgenus Uycetodrenp Thoms. 16. 0. alternant 5ravl-. . (iravh. Micr. 85; Srlchs. Kaf. "k. Br. I, 345; 5en. Spec. Staph. 145; Kraatz Ins. D. II, 177; Thoms. S abdomen elongate, smooth- ly and feebly narrowing with thick side-margins without outstanding side- bristles, finely and very densely punctated. L. 2.5-3 mm. A very rare species, distributed in Middle and North Europe. It occurs mainly on highland sandy ground, and is in this country heretofore only found singly in a few places, mostly in northern Jutlanu, in gravel pits and sand holes (Eronninglund Storskov in Vendsyssel, Ilvorup Sandhills, and -S4- (Page 63) Lundby Hills at Aalborg, vicinity of Copenhagen (?). June- August). 22. 0. recondlta Kr. (Kraatz Ins. L. II, 182; JJanglb. Kaf. M. II, 74). A small species, recognized especially by form and color of the body, scattered punctation of abdomen, and the elongate third joint of maxil- lary palpi. Bather e-jually broad, feebly narrowing anteriorly and posteriorly, '/ost often pure reddish-yellow, glistening, very finely haired; the head brownish-red; the fourth free abdominal joint often also base of the fifth dark or pitch-black; antennae, mouth-parts and legs reddish-yellow. The head extremely finely or indistinctly punctated; antennae as long as head and pronotum together, rather strongly thickened distally, their third joint much shorter than the second, the next-last ones tv^ice as broad as long; maxillary palpi rather long, their third joint elongated, the fourth extremely fine. Pronotum as broad as elytra, ij times as broad as long, anteriorly feebly, roundly narrowing with roundly-obtuse hind corners, convex, without impressions, isolated ana particularly fine punctation; elytra as long as pronotum, somewhat more robustly but hardly more dense- (Page 64) ly punctated than same, their posterior margin inside the outer corners flatly incurved, Abdomen is equally broad till over the middle, from there narrowing, all over very finely, anteriorly not dunsely punctated, toward tip with isolated or scattered punctation. In not worn specimens the pos- tt-rior margins of dorsal abdominal joints and also tht sides liave numer- -&E- (Page 64) ous outstanding fine bristle-hairs. L. 2-2. S mm. On account of rather long maxillary palpi and their elongated third joint recondita is sometimes assigned to subgenus Eaeoglena Thorns. (Eernh.). - It is distributed in Middle Lurope, especially in the northern part, is everywhere, also here, very rare, and is most often found in hollow trees and stubs in remnants of bird's nests, in ant-hills and the like. (Vang forest, Vendsyssel; Knudshoved, Dyrehaven at Copenhagen, Hiller^d, Tisvilde et al. ). 23. 0. f ormiceticola Mark. (Mark Jerm. Zeitschr. Ill, 213; Kraatz Ins. D. II, 182; Thoms. Skand. Col. Ill, 33; Wuls. et Rey Bre'vip. 1874, 338; Janglb. Kaf. M. II, 75). Among the species of the subgenus especially recognized by the broad pronotum and by the color of the body. Almost of equal breadth, slightly convex, pitch-brov.n or reddish-brown, very finely haired, greasy glistening; the head and middle joints of ab- domen black or blackish-brown; abdominal tip, antennal base, and legs red- dish-yellow. The head is very finely and rather densely punctated; antennae not strong- ly thickened distally, their third joint distinctly shorter than the second, the next-last ones approximately twice as broad as long. Pronotum as troad as elytra or a little broader than these, twice as broad as long, anteriorly feebly narrowing with strongly rounued sides and obtuse-angular hind corner*, posterior margin inside these very slightly incurved, dorsum convex, finely and densely punctated, sometince feebly grooved in middle-line or with a suggestion of a small fovea before scutellum; elytru only as lon^* as pro- -pe- (Page 64) notum, more distinctly and densely punctated than this, their posterior margin inside the outer corners distinctly incurved; ^icaomen from middle and posteriorly slightly tapering, anteriorly very densely and very finely, posteriorly somewhat less densely punctated, its filth free dorsal joint much longer than the fourth. L. 2.5 mm. It is a true ant-guest, which permanently abides in the ant-hill, name- ly with Formica rufa, rarely vanglb. Kaf. M. II, £2. -prolixa 5yllh. Ins. Suec. IV, 464; Thorns. Skand. Col. Ill, 42). As a rule somewhat smaller and narrower than picatu, from which it is easily separated by the more robust punctation of elytra and the stronger gloss of the body. Pitch-black or pitch-brown, strongly glistening, sparsely haired; el- ytra and the tip of abdomen yellowish-brov.n; antennae, mouth-parts, and legs reddish-yellow. (Page 74) The head with coarse and scattered, flat punctation; antennae very -113- (Pa,,-e 74) feebly thickened distally, their second and third joints of same length, the middle ones a little longer than broad, the next-last ones as broad as long or feebly transverse. Pronotura is much narrower than elytra, as long as broad with anteriorly strongly, posteriorly feebly rounded sides and rounded off obtuse hind corners, convex, rather coarsely but not deep- ly or densely punctated, and with a transversal fovea posteriorly before scutellum, sometimes also a feeble longitudinal groove in middle-line pos- teriorly. Elytra scarcely longer than pronotum, robustly but not very den- sely punctated, the surface background smooth, their posterior margin in- side the outer corners distinctly incurved; abdomen feebly tapering, very isolated, fine punctation, and very polished. L. 3.5-4.5 mm. Cn damp ground, especially in v.oods under leaves and fagot, distribut- ed, but everywhere rather rare. 2. 0. picata Steph. (Steph. 111. Brit. V, 125; ianglb. Kaf. M. II, 93. - castania Erichs. Kaf. Wk. Br. I, 2S9; Jen. Spec. Staph. 60; Kraatz Ins. D. II, 51; Thoms. Skand. CJol. Ill, 41; Muls. et Rey Erevip. 1874, 46S). The punctation of pronotum and elytra, and color of the legs provide as far as this species is concerned the surest identification marks. Brown or reddish-brown, glistening, rather finely and not densely hair- ed; the head and abdomen with exception of abdominal tip most often pitch- black or pitch-brown; antennae rust-red, their base, mouth-parts, and legs reddish yellow. The head v.ith rather fine, isolated and not deep punctation; anten- nae long and slender, their first three joints elongated, of equal length, the middle ones longer than broad, the next-last ones as broad as long, -114- (Page 74) distal joint tapering; pronotum narrower than elytra, a little broader than long with anteriorly rather strongly rounded, posteriorly almost straigth sides and obtuse -angular hind corners, convex, v;ith rather fine and not dens^, or deep punctation v;ith a transversal fovea posteriorly before the scutellum, and a feeble longitudinal groove in middle-line; elytra longer than pronotum, rather finely and densely punctated, the surface very finely transversally aciculated and less glistening than pronotum, their posterior margin inside the outer corners distinctly J.ir«- curve4i abdomen tapering posteriorly, sparsely and finely punctated, strong- ly glistening or polished. L. 4-5 mm. Distributed and rather common in this country, often numerous at forest brooks and at brims of lakes under stones, leaves and in alluvium, also on the strand under seaweed. (Page 75) 3. 0. rivularis Mill. (Miller Verh. d. zool.-bot. Ver. "'ien I, 110; Kraatz Ins. D. II, 52; »anglb. Kaf. M. II, 94. - latipennis Sharp Ent. Monthl. Mag. VI, 1370, 280). Very closely allied to plcata, most often a little larger and broader also darker of color; pronotum les; -^li cteninj. Pitch-black; elytra and abdominal tip brown; antennae reddish-brown; their base, mouth-parts, and legs yellowish-red. Head and pronotum much raoro densely punctated than In plcata. and due thereto pronotum is less glistening than in same; antennae most often a trifle more elongated, elytra broader, somewhat more finely and densely punctated, rather densely haired. L. 4-5.5 mm. -115- (Page 75) It is found in North Germany (Jjleklengorg) and En^-land, distributed throughout the entire Middle Europe and farther southward. Its occurrence in this country, especially in the southern parts is not unlikely. 4. 0. concolor Kiesw. (Kiesw. Kiister Kaf. Eur. VIII, 46; Kraatz Ins. D. II, 53; Muls. et Rey Brevip. 1874, 465; Sanglb. Kaf. M. II, 94). From the preceding species easily separated and identifiable by the color of antennae and legs. Black or pitch-black; antennae pitch-brown with slightly lighter base; mouth-perts and legs darkly reddish-brown, the latter sometimes brownish black; tarsi rust-red. Head and pronotum are punctated as in picata, the elytra broader than in this with more prominent humeral corners, with somewhat finer and den- ser punctation. L. 4-£ mm. Distributed in Germany and France; less probable in this country than the preceding species. 12. jenus Chilopora Kr. (Kraatz Ins. D. II, 146; f/.uls. et Fey Brevip. 1874, 5C5; Janglb. Kaf. M. II, 94). In form and appearance Chilopora most closely resembles Tachyusa, but to some degree also '^olodera and Ocalea. From the former genus It is main- ly separated by 5-jolnted fore-tarsi; from Calodera especially by slender- er form of body, and by, that only the first three free dorsal joints of abdomen are depressed at base; from Ocalea by finer, more slender form of body, not marglnated temples and genae, shorter tongue, longer and finer -116- (Page 75) hind tarsi, longer first joint of middle- and hind-tarsi, also by the den- ser punctation and feebler gloss of abdomen. The body elongate and very narrov, ; the head porrect, rather strongly constricted behind; temples and genae not or only indistinctly marginatedj antennae long and rather slender; maxillary palpi elongated, their third joint longest, feebly thicicenea, the fourth very small, subulate; the ton- gue much shorter than in Ocalea, and cleft to the middle; labial palpi small. (Page 76) Pronotum is narrower than elytra; these longer than pronotum, their posterior margin inside the outer corners incurved; abdomen elongate, its first three free dorsal joints deeply depressed at base; legs long and fine, all tarsi 5-jointed; first joint of middle-tarsi as long as the fol- lowing two joints together, hind tarsi as long as tibiae, their first joint long, as long as the three following joints together, much longer than the claw-Joint. The species live on sandy brims of brooks and lakes, often in company with Tachyuser ; 3 species are distributed in north and ?,1iddle Europe, and of these 1 is found in this country. 1, Ch. rubicunda Er. (Srichs. ?Caf. Mk. Br. I, 30S; Cien. Spec. Staph. 66; Krantz Ins. D. II, 147; Uuls. et Pey Dr^vip. 1874, 512; Janglb. Kaf. M. II, '."6). Combined with the generic characters especially identifiable by the color and by punctation of the body. Reddislj-brown, finely and rather densely gray-haired, somewhat glisten- ing; the head and the next-last abdominal joints Lrownlsh-black; antennal -117- (Page 76) base, mouth-parts, and lejs light reddish-yellow. The head is about as broad as pronotum, especially finely and not dens- ely punctated; the antennae considerably longer than head and pronotum together, slender, distally however rather robust, their second and third joints of same length, the middle ones longer than broad, tne next-last ones scarcely transverse, distal Joint rather large, slightly impressed at middle, obtusely tipped. Pronotum somewhat narrower than elytra, as long as broad or a little longer, slightly narrowing posteriorly with an- teriorly rounded, posteriorly almost straigth sides, densely and finely punctated, with a transversal fovea posteriorly before the scutellum, and sometimes one from the fovea issuing;, abbreviated longitudinal groove in the middle-line. Elytra are a little longer than pronotum, fully as dens- ely and robustly punctated as this, their posterior margin inside the out- er corners distinctly incurved; abdomen all over very densely and extrem- ely finely punctated, much finer than the forebody, L. 4-4.5 mm. It lives on damp sandy ground, especially in sandy river-brinks, often in company wiith certain Tach.yusa species (constricta, coarctata) and Bledius species. It roots through the surface in the manner of ants by moving the single grains of sand with the mandibles, and is best obtained by sifting the sand-layer. Very rare (Jrejsdal, Blokhus, at ■::openhagan et. al.). 13. Jenus Ityocara Thorns. (Thoms. Skand, Ool. IX, 239; Wuls. et Pey Bre'vlp. 1874, 516; ianglb. Kaf. M. II, 96). The one hereonto belonging species, rubens Er. , which by Erlchson and Kraatz is assigned to Oalodera. ie by Thomson separated as a special genus -118- (Pa^e 77) on account of, that the head is less strongly constricted behind than in ^alodera. that temples and jenae are completely margined, and that only three of the abdominal first free dorsal Joints are depressed at base. 1. I» riibens Sr. (Erichs. Kaf. Mk. Br- I, 304; ien. Spec. Staph. 67; Kraatz Ins. E. II, 142; Thorns. Skand. Col. IX, 239; Janglb. Kaf. M. II, 96). It is in appearance much like Calodera protensa, from v.hich it how- ever, next after the above mentioned generic characteristics, easily is separated by more robust antennae and broader pronotum. Father slender, anteriorly slightly narrowing; black, all over extre- mely densely and extremely finely punctated, also very densely and finely gray-haired, due to this with dull gloss and with pronounced silky sheen; antennae pitch-brown or brownish-red, their base, mouth-parts, and legs reddish-yellov. ; in teneral animals pronotum and elytra also posterior mar- gins of abdominal joints brownish. The head is considerably narrower than pronotum, posteriorly rounded off, but not strongly constricted, porrect; antennae rather long and very robust, their third Joint only half as long as the second, the fourth small and short, the following (5-lC) of equal breadth, approximately twice as broad as long, distal Joint long, oval. Pronotum is much narrower than el- ytra, as long as broad, slightly narrowing posteriorly with anteriorly rounded, posteriorly more straigth sides, and with obtuse hind corners, slightly convex with a feeble impression posteriorly before the scutellum, and sometimes a suggestion of a longitudinal groove in the middle-line; The elytra are 4 longer than pronotum and somewhat more distinctly punc- -IIS- (Page 77) tated than this, their posterior margin inside the outer corners feebly Inourveds abdomen of even breadth, its first three free dorsal Joints slightly depressed at base; legs rather slender, first joint of hind tar- si long, as long as the three following Joints together, longer than the claw-Joint. L. 3-3.5 mm. It lives like the Calodera species on damp ground, is distributed through- out North and Middle Europe, in this country heretofore only found in the forests at Hiller^d, now and then numerously under very moist leaves at woodland bogs, especially in the spring. 14. Genus Calodera Uannh. (Uannh. Brach. 85; Srichs. Eaf. Mk. Br. I, 301; CJen-.Spec. Staph. 64; Kraatz Ins. L. II, 14C; Thorns. Skand. Col. II, 300; f.iuls. et Fey Brevip. 1874, 530; Janglb. Kaf. M. II, 96). The body is narrow and rather slender, the head porrect, posteriorly rounded off and rather strongly constricted (Fig. 26 ,i, temples asid genae not marginated, nor are the eyes prominent; antennae robust, their third Joint shorter than the second and the middle ones often a little broader than the next-last ones. The third Joint of maxillary palpi somewhat lon- ger and more robust than the second, the fourth subullform, especially small (Page 78) and fine. The tongue is short, cleft to the middle; labial palpi small, their second Joint very short. Pronotum is much narrower than elytra, somewhat narrowing posteriorly with strongly deflected, rounded off fore-corners and obtuse-angular hind corners; elytra longer than pronotoui with prominent humeral corners, their i -120- (Page 78) posterior margin inside the outer corners tnouryed; abdomen equally broad or broadest across the fourth and fifth free joints, from there feebly nar- rowing anteriorly and tapering posteriorly; ixs first four free dorsal joints strongly depressed at base, the legs are slender, all tarsi 5-jointedj first joint of middle-tarsi short, very little longer than the second, first joint of hind tarsi as long as the three following joints together, much longer than the claw-joint. Sex-characters do not appear. The species favour shaded places on damp ground, vjhere they live hid- den under leaves and other plant-cover. Throughout Middle and North Eu- rppe 6 species are distributed, of which at least 5 also are found in this country. Key to Species. 1. Pronotum v.ith especially fine and dense punctation, dull, most often with a distinct longitudinal groove in the middle-line 2. Pronotum less densely punctated, more or less glistening, without longitudinal groove 3. 2. Abdomen somewhat glistening, anteriorly with dense, posteriorly scat- tered punctation. L. 4.5 mm 1. 3. nigrita Mannh. Abdomen entirely dull, all over extremely densely punctated. L. 3 mm. 2. G. protensa Mannh. 3. Abdomen extremely densely and finely punctated, with rather dull gloss. L. 2-2. L mm 3. C. aethiops Jravh. Abdomen with more or less isolated punctation and glistening 4. 4. Forebody strongly glistening, finely haired, elytra without or with insignificant scabrous puncttiiion 5. -121- (Page 78) 4. Forebody feebly glistetiins, densely and rather coarsely haired, elytra with distinct scabrous punctation. L. 2.5-3 mm.: 6. C. rufescens Kr. 5. Antennae in mature specimens dark, only red at base. L. 3.5 mm.... 4. C. uli.;:inosa Er. Antennae red with lighter base. L. 3 mm 5. C. rlparia Er. 1. C. nigrita Mannh. (Wannh. Brach. 66; Srichs. Kaf. Mk. Br. I, 3C3; ien. Spec. Staph. 65; Kraatz Ins. D. II, 141; Thorns. Skand. Col. II, 3C1; Muls. et Rey Bre'vip. 1874, 533; Janglb. Kaf. M, II, 97). Our largest species; and in combination with this easily identified by the very dense punctation and hair vestiture of the forebody, and by the distinct gloss of abdomen. Elongated and rather evenly broad; black; antennal base, mouth-parts, knees and tarsi reddish; forebody very densely and finely silver-grayish haired, dull or dully glistening, abdomen less densely haired, distinctly glistening. (Fig. 27). (Page 79) Forebody extremely finely and densely punctated; head not as broad as pronotum; antennae long and rather robust, their third joint much shorter than the second, the following (4-10) feebly transverse. Pronotum longer than broad, much narrower than the elytra with anteriorly rounded, poste- riorly almost straight sides, feebly convex with a flat transversal fovea posteriorly before scutellum, and one as a rule distinct longitudinal groove in the middle-line; the elytra somewhat longer than pronotum; abdomen of rather equal breadth, the foremost dorsal joints with dense and very fine, the hindmost more scattered punctation. L. 4.5 ram. -122- (Page 7e) Distributed, but very rare or local and most often singly in alluvium at marshes and under leaves at forest lakes or on shady, boggy woodland ground; rarely in large numbers (Hillerpd 3. 1910-11). 2. g. protensa t.'.annh. (Mannh. Brach. 86; Kraatz In;;. D. II, 142; Thorns. Skand. Col. Ill, 302; Muls. et Pey Br^vip. 1874, 536; Janglb. Kaf. U. II, 98. - humilis Erichs. Keif. Uk. Br. I, 303; Jen. Spec. Staph. 65). Very closely allied to nigrita, but much smaller than this, distingu- ished by an all over especially dense and especially fine punctation, which in connection with a very fine, aense gray hair vestiture make both fore- body and abdomen equally dull or dully glistening. The antennae are short- er than in the preceding species, their middle- and next-last joints more transverse; the elytra are also shorter, only a little longer than pronotum; antennae and legs are most often brownish-red, and in teneral aniipals the elytra are brownish. L. 3 mm. It is found in similar places as nigrita, but is much rarer (Odense; Lundbykrat at Aalborg; several places in Nordsjaelland) . 3. C. aethiops iravh. (Jravh. Micr. 77; Erichs. Kaf. Mk. Br. I, 306; Jen. Spec. Staph. 68; Kraatz Ins. D. II, 144; Thorns. Skand. Col. II, 302; iVuls. et Rey Erevip. 1874, 54R; Janglb. Kaf. U. II, 99). Our smallest species, and besides by this identified by the dense punc- tation and dull or modulated gloss of abdomen. Black or brownish-black, gray-haired, feebly jlistening; antennae pltch- (rage 80) brown, their base, the mouth-parts, knees of thu legs and tarsi brownish-red. In teneral animals the elytra, abdominal tip, antennae and legs more or less brownish red. -123- (Page 80) The head is indistinctly punctated; antennae robust, their third joint only half as lon^ as the second, the fourth short and like the middle and next-last ones strongly transverse. Pronotum is about as broad as long, much narrower than elytra, feebly narrowing posteriorly, very finely and very densely punctated with a feeble transversal fovea before the scutel- lum; elytra distinctly longer than pronotum and like this very finely and densely punctated; abdomen right to the tip with extremely fine and dense punctation, feebly or dully glistening. L. 2-2.5 mm. Tistributed all over, and not rare on damp meadow and forest ground, in the spring often numerous in alluvium. 4. C. uliginosa 2r. (Erichs. Kaf. Mk. Br. I, 305; (Jen. Spec. Staph. 67; Kraatz Ins. D. II, 143; Thorns. Skand. Col. Ill, 302; Muls. et Rey Brevip. 1374, 539; langlb. Kaf. Li. II, 98). Among the most closely allied species especially recognized by the col- or and by the strong gloss of the body. Black, stiongly glistening; forebody with fine and short, abdomen with somewhat longer, sparse hair-clothing; antennae dark, their base, the mouth- parts, and knees of the legs and tarsi rust-red. In teneral animals the an- tennae and tibiae are brownish red. The head is extremely finely or indistinctly punctated; antennae long and rather robust, their third Joint much shorter than the second, the fourth much smaller than the fifth, a little broader than long, the fifth and sixth broader than the following, the next-last ones feebly transverse. Pronotum is much narrower than elytra with anteriorly rounded, , posteriorly slightly incurved sides, convex, especially finely and rather densely punc- -124- (Page 80) tated with one, often indistinct transversal fovea posteriorly before the scutellum; elytra somewhat longer than pronotum, with somewhat more dis- tinct and dense punctation than this, rather convexj abdomen slightly widen- ed posteriorly, its first four free dorsal joints in transversal grooves robustly punctated, elsewhere with very fine and scattered, and consider- ably less dense punctation than the following joints, L. 3.5 mm. Distributed and next to aethiops our most common species; everywhere however rather rare; on boggy damp forest or meadow ground. 5. G. riparia iir. (Srichs. Keif. Mk. Br. I, 305; Jen. Spec. Staph. 68; Kraatz Ins. D. II, 144; Muls. et Pey Bre'vip. 1874, 542; ianglb. Kaf. IL. II, 98). Somewhat smaller than the preceding species, to which it otherwise is very closely allied, and easily confused with. Black, finely haired, glistening; elytra along the suture, and abdom- inal tip most often brownish red; antennae red or rust-red with lighter (Page 81) base, the legs pitchy-red, their knees and tarsi, often also tibiae, lighter. Head and pronotum punctated like in uliginosa; antennae somewhat short- er than in same, but similar in structure, pronotum a little shorter and quite as densely punctated and with a feeble transversal fovea poeterior- ly before the scutellum, v.hich often dissolves into two small punctiformis foveae. iilytra are scarcely as broad as in uli^'inosa, a little longer than pronotum, very finely and densely, more distinctly punctated than same; ab- domen same as in uliginosa. L. 3 mm. -125- (Pa:je 31) Very rare and singly on boggy ground under leaves and in alluvium (Odense, Strand at K^ge, Nyk^bing F. et al.)- I^ is found in Non^'ay, but not in Sweden. 6. C. rufescens Kr. (Kraatz Ins. D. II, 144; Muls. et Rey Bre'vip. 1874, 545; IJanglb. Kaf. M. II, £9). Very closely allied to preceding species, but a little smaller and most often lighter colored; brown or reddish-brown, gray-haired; the head and abdomen with exception of the tip and posterior margins of its joints pitch-black; antennae and legs rust-red. The forebody is rather feebly or moderately glistening, more distinctly and densely punctated than in the two preceding species: pronotum densely or very densely, finely punctated, elytra very densely, rather finely ana distinctly scabrously punctated. Punctation of abdomen is all over rather dense and smooth. L. 2.5-3 mm. Said to be particularly distributed in the southern Kiddle Europe and very rare in the northern part. In this country it is not heretofore with certainty denoted, but one specimen in my collection must, notwithstanding the too dark color, according to the punctation of body etc. most nearly be assigned to this species; it was sifted in Sk>^rping Holme south of Aal- borg, E. P4, fr'om moist leaves. 15. Senus Amarochara Thoms. (Thoms. Ofv. Vet. Ac. Forh. 1858, 62; Skand. Col. II, ^03; F/.uls. et P.ey Erevip. 1S74, 524; Janglb. Kaf. M, II, 99). The species of this genus are distinguished by, that the robust first jOint of the antennae (Fig. 28) is dorsally provided with an oblique groove -126- (Page 81) or longish fovea, at least j as long es the joint, for the reception of the base of second Joint, when the antennae bend backward, this peculiar- ity may be traced in several >\leocharini species which have a tendency to lay the antennae back, but in no others is this so strickingly devel- oped as here. So as better to fall into the incision of first joint, the base of second joint is curved. Fig. 28. First three joints of antenna in Amarochara umbrosa Sr. First joint v.ith groove (f.), second v.ith bend and out- curved base. (Page 82) Furthermore Amarochara is very closely related both to Calodera and Ilyobates. Of the t\so following species A. umbrosa i s by Srichson and Kraatz assigned to Calodera, and A. forticornis to Ilyobates. However the abdomen in A. umbrosa has in contrast to Calodera not four but only three at base depressed dorsal joints, ana in A. forticornis the mesor sternum has in contrast to Ilyobates no carina in the middle-line. Both species live on damp ground under leaves or at the brim of lakes, especially woodland lakes, in alluvium. Key to Subgenera and Species. 1. Abdominal first three free dorsal joints depressed at base. Temples and genae not marginated: 1. subg. Amarochara s. str. Thoms. L. 3 mm 1. A. umbrosa Er. Abdominal first four free dorsal joints depressed at base. Temples and genae marginated: 2. subg. Mniobates '/uls. I. 4. mm 2. A. forticornis Boisd. -127- (Pase 82) 1. Subgenus Amarochara s. str. Thons. 1. A. umbtosa Er. (Erichs. Kaf. m. Br. I, 304; Jen. Spec. Staph. 6t; Kraatz Ins. E. II, 145; Thorns. Skand. Col. II, 303; Mul s. et Rey Brevip. 1874, 527; Janglb. Kaf. M. II, £9). A narrow and fine species. In appearance like a Gal ode ra species, especially recognizeablc by the standard characters of the subgenus. Black, glistening, sparsely haired; elytra brown, at sides and base obliterated black; legs yellow or brownish yellow; in teneral animals are not alone the elytra, but also pronotum, tip of abdomen and posterior margins of its joints, also antennal base, and the mouth-parts lighter or darker reddish-brown. The head is almost smooth; antennae robust and rather long, their first joint tr.lck and dorsally provided with an oblique groove, about half as long as the Joint, the base of second Joint curved, third Joint shorter than the second, the fourth short and broad, the middle and next- last ones (5-10) of equal breadth, about tv.ice as broad as long. Pro- notum is narrower than elytra, scarcely broader than long with smoothly rounded sides and obtusely rounded off hind corners, punctation very fine, isolated, without impressions; elytra a little longer than pronotum, not more densely, but somewhat more distinctly punctated than this, their pos- terior margin inside the outer corners not incurved. Abdomen of equal breadth, finely, but not densely punctated; Its first three free doDrsal joints transversally grooved depressed at base. 1. 3 mm. Distributed throughout North ana Middle Europe, everywhere rare; in -128- (Page 82) this country heretofore only found here and there in North Sjaelland at lakes and In woodland marshes, in alluvium and under damp leaves (at Furs^, F/*nstrup Eamme and Salpetermosen at Hiller^d, Hornbaek). (Page 83) 2. Subgenus Mniobates I«iuls. et Rey. 2. A. forticornis Boisd. (Boisd. et Lac. Fn. Ent. I, £43; Erichs. 3en. Spec. Staph. 65; Kraatz Ins. L. II, 136; Muls. et Rey Brevip. 1874, 499; CJanglb. Kaf. M. II, ICO). Identified by the four abdominal Joints depressed at base, and by the particularly robust, thick antennae, Jlistenin^, viith sparse and rather long hair vestiture, darker or light- er brownish-red; the head and abdomen v.ith exception of its tip and pos- terior margins of its foremost Joints black or blackish-brown; antennal base and the legs yellowish-red. Father narrow and of even breadth; the head somewhat narrower than pronotum, dorsally smooth, the sides with fine and scattered punctation; antennae very robust and thick, longer than head and pronotum together, their first joint dorsally rather short grooved, the second curved at base and scarcely longer than the third, the fourth and fifth very short and broad, the following and the next-last Joints about of equal thickness, but the sixth somewhat shorter than the following, which are li times as broad as long, distal ^oint obtusely tipped, rronotum is a littld broader than long, very little nariower than elytra with smoothly rounded sides and obtuse-angular hind corners, convex, very finely and not densely punc- tated, without impressions. Elytia only a little longer than pronotum, -129- (Page 83) v.ith robust and rather dense scabrous punctation, their posterior margin inside the outer corners strongly incurved j abdomen of even breadth, strong- ly glistening, its first four free dorsal joints strongly depressed at base, in the transvei sal grooves v;ith robust and dense punctation, but the joints elsewhere with rather fine, scattered punctation. L. 4 mm. Distributed throughout Middle and South Curope; very rare in this coun- try and found only singly in a few places on damp marshy or forest ground (Taps, Hoptrup at Haderslev, Odense). This country is apparently its north- ern boundary. 16. lenus Ilyobates Kr. (Kraatz Ins. D. II, 133 ex parte; Thorns. Skand. Col. II, 3C4; Muls. et Fey Brevip. 1874, 485 ex parte; ianglb. Kaf. M. II, 101). From Gal ode ra this genus is easily separated by longer and particular- ly robust antennae, more densely and much more coarsely punctated elytra, marginated temples and genae and finely carinated mesosternum. The body (Fig. 29) is slender, yet rather robust, anteriorly more nar- rowing than posteriorly; the head porrect, posteriorly narrowing and slight- ly constricted, antennae long and especially robust, their third Joint as long as or longer than the second; maxillary palpi slender, their fourth Joint especially small, short and fine like in Calodera; The tongue deeply cleft; the second Joint of labial palpi shorter than the first and third. (Page 84) Pronotum is narrower than elytra, fore-corners rounded off and deflect- ed, hind corners almost rectangular; elytra longer than pronotum, their posterior margin inside the outer corners strongly incurved; abdomen elon- -130- (Page 84) ^ated and rather evenly broad, its first four free dorsal joints strong- ly depressed at base, the first three ventral joints impressed at base; legs long, all tarsi 5-jointed; first joint of middle-tarsi hardly as long as the two following joints together, first joint of hind tarsi near- ly as long as the three following joints together, quite as long as the claw-joint. Visible sex-characters do not appear. The species live on damp ground under the plant cover, but are also found with ants. In Middle and North Europe 2 species occur. Key to the Species. 1. Pronotum as coarsely punctated as head and elytra. L. 4-5.5 mm 1. I. ni^-^ricollis Payk. Pronotum much more finely punctated than head and elytra. L. 4-5 mm.. 2. I. propinquus Aube. 1. I. ni^ricollis Payk. (rayk. Fn. Suec. Ill, 400; Krichs. K4if. Mk. Br. I, 302; ien. Spec. Staph. 64; Kraatz Ins. D. II, 134; Thoms. Skand. Col. II, 304; I'mIs. et Pey Erevip. 1874, 4S2; ianglb. Kaf. M. II, 101). Identifiable by trie very dense, all over equally coarse punctation of the forebody and due thereto very feeble or dull gloss. Rather narrov, and elongate, finely and sparsejy haired; head and pro- notum dull; elytra feebly, abdomen rather strongly glistening. In mature animals heaa ana pronotum are black, elytra brownish-red, abdomen pitch- brown, its tip and posterior margin of its joints lighter, antennae and legs yellowish-red. In teneral specimens the head and pronotum are brown, elytra yellowish-red, abdomen brownish-rud, -131- (Page 84) The head is narrower than pronotum (Fij. 29) and together with same very densely and uniformly robustly or coarsely punctated, broadest across the eyes, these rather small and somewhat protruding; the antennae much longer than head and pronotum together, distally very robust, their third Joint fully as long as the second, the following (4-10) increasing in thick- ness and simultaneously in length, as long as broad or feebly transverse, distal joint rather large and thick, obtusely tipped. Pronotum is narrow- er than elytra, in the O as long as broad, in the o more transverse, with (Page 65) anteriorly slightly rounded, posteriorly feebly constricted sides, convex, without distinct impressions. Klytra somewhat longer than pronotum, equal- ly coarse, but not quite as dense punctation as in same, slightly convex, their posterior margin inside the outer corners strongly Jnourvedj abdom- en rather evenly broad, in transversal grooves with robust and coarse, else- where with rather fine, scattered punctation. - The species varies somewhat in size. - L. 4-5.5 mm. Distributed and not rare; as well in forests under leaves as in mead- ows and at seashores in alluvium; occasionally at anthills. 2. I. proplnquus Aub^. (Aube Ann. Roc. Ent. ?r. 185C, 302; Uuls. et Rey Bre'vip. 1874, 4P6; CJanglb. Kaf. M. II, lOii. - rufus Kraatz Ins. D. II, 135). It is separated from nigricoll is, to which it is closely allied, name- ly by: that the head and pronotum are more glistening, that pronotum is much finer punctated than head and elytra even though as densely as these, that elytra are robustly scabrously punctated, and that the color of the (Page 85) body is lighter, most often entirely reddish-brown; the head, pronotum and abdomen hov»ever sometimes darker brown. L. 4-5 mm. Its home is especially in Middle Kurope and is said mainly to be found in company with Formica rufa and Myrmica rubra, however also in alluvium. A single specimen in the late Konservator Liivendal ' s collection from Tiis^ seashore is probably this species. 17. Jenus Fhloeopora Br. (Erichs. Kaf. Ijik. Br. I, 311; 5en. Spec. Staph. 76; Kraatz Ins. D. II, 324; Thorns. Skand. Col. II, 288; Muls. et Pey Brevip. 1874, 435; (Janglb. Kaf. M. II, 102). Among the Aleocharina ^^enera, in which the head is constricted behind, Phloeopora is identified especially by: that the first joint of hind tarsi is shorter than the two following joints together. Furthermore the follow- ing remarks: The body is narrow and of rather equal breadth, slightly convex; the head porrect and constricted behind; the eyes slightly prominent; temples and genae finely, sometimes incompletely marginated; antennae short, their third joint shorter than the second, the next-last ones strongly transverse; maxillary palpi rather slender, the third joint longer than the second, the fourth very small and fine, subuliform; the tongue short, cleft to the middle; labial palpi fine, their first ^oint cylindrical, the second much shorter than the first and third. Pronotum is as Lroad as elytra or narrower than these, slightly narrow- ing posteriorly with distinct hind corners and rounded off fore-corners; the elytra at least as long as pronotum, their posterior margin inside the -133- (Page 85) outer corners strongly incuni-ed; Hbdomen rather elongated and equally broad, its first four free dorsal Joints depressed at base, the fourth sometimes less distinctly depressed than the first three, the fifth free joint much (Page 86) longer than the fourth; the first three ventral joints slightly impressed at base. The legs are rather short; all tarsi 5-jointed; first joint of hind tarsi longer than the second, but shorter than the second and third joints together, shorter than the claw-joint. The species live under the bark of deciduous and pinaceous trees, lAhich are attacked by bark -beetles, tiie young of the latter supposedly serve as food for these and their larvae. - In this country 3 species are heretofore found, a fourth, which like these is distributed in North and Middle iiurope, is included in the following. Key to Species. 1. Pronotum anteriorly as broad as elytra, distinctly broader than long. L. 2.5-3 mm 1. P. reptans Jravh. Pronotum narrower than elytra 2, 2. Pronotum with isolated punctation, rather strongly glistening, pos- terior half the elytra red. the base set off v.ith black. L. 2.5- 3 mm 4. P. latens lir. Pronotum densely punctated, dull or feebly glistening 3. 3. Pronotal surface extremely finely shagreened , , dull. L. 2.5-3 mm... 2. P. nnjustiformis fcaudi. Pronotal surface not shagreened, feebly or moderately shining. L. 2.5- 3 ram 3. P. corticalis -^ravh. -134- (Page 86) 1. P. reptans Jravh. (Jravh. lion. 154; Erichs. Kaf. Wk. Br. I, 311; ien. Spec. Staph.. 77; Kraatz Ins. D. II, 337; Thorns. Skand. Col. II, 289; ^Janglb. Kaf. K. II, 104. - testacea I^annh. Brach. 86) '"ithin the genus especially identifiable by the proportionately broad, dull or dully glistening pronotum. Narrow and evenly broad, finely gray-haired; feebly glistening; the head black; pronotum black or blackish-brown, almost dull; elytra brownish- red, at base often darker; abdomen black or blackish-brown with brownish- red tip; antennae, mouth-parts and legs yellowish-red. The head is nearly as broad as pronotum, densely and very finely punc- tated, the surface indistinctly shagreened, somewhat glistening; antennae short, thickened distally, their third joint smaller and shorter than the second, the fourth small and rounded, the middle- and next-last ones (£-10) increasingly strongly transverse, at least twice as broad as long. Prono- tum anteriorly somewhat broader than long, very little or not narrower than elytra, feebly narrowing posteriorly with distinct, but obtuse-an- gular hind corners, slightly convex, very finely and densely punctated, and furthermore the surface is especially finely and densely shagreened and due thereto dull, posteriorly often with a feeble suggestion of two longitudinal impressions before the scutellura. In the ^ the posterior margin of pronotum is at middle feebly dilated posteriorly. Elytra only slightly longer than pronotum, more robustly, but a little less densely punctated than this, their posterior marjin inside the outer corners strong- ly incurved; abdomen of even br^eadth, mort; glistening and sparsely haired •135- (Pa-e 86) than forebody, anteriorly v.ith rather fine and dense, posteriorly more isolated punctation, first four free dorsal joints equally strongly trans- (Pa-e 87) versally grooved depressed at base and the fifth much longer than the fourth L. 2.5-3 mm. Distributed in the woodland throughout the country, and not rare under tark and in the jaleries of bark-beetles on trunks and stubs of infested pinaclous trees. 2. P. an;^ustif ormis Liaudi. (Baudi 3erl. Ent. Ztschr. 1869, 379; danjlb. Kaf. K. II, 104). Very closely allied to and similar with reptans; (teste aanglbauer) somewhat narrower; third joint of maxillary palpi brownish; abdomen en- tirely black and its tip scarcely lighter. Pronotum is distinctly narrow- er than elytra, broader than long, in the surface extremely finely shagreen- ed and therefore dull, but as well as the elytra less finely and less dens- ely punctated than in reptans; elytra longer than in this species, about i longer than pronotum; the foremost dorsal joints of abdomen with rather robust end dense punctation, the fifth free joint with fine and very iso- lated punctation. L. 2.2-2.5 mm. It is distributed in Kiddle and North Europe, but heretofore not found in this country. 3. P. corticalis Oravh. (Jravh. Micr. 76; Erichs. Kaf. Mk. Br. I, 312; ien. Spec. Staph. 77; Kraatz Ins. ^. II, 337; Thoms. Skand. Col. II, 285; Muls. et Fey Brevip. 444; ianglb. Kaf. V.. II, 105). -136- (Page 87) In relation to reptans, to %hich it as a whole is closely allied, especially recognized by narrower, not dull, but somewhat glistening pronotum. Black, finely haired, somewhat glistening; pronotum sometimes pitch- brown; elytra brown or darkly brown, toward tip and at the suture red; abdominal tip brownish; antennae distally pitch-brown, their- base, mouth- parts and legs yellowish-red. The head is finely and rather aensely punctated; antennae same as in reptans; pronotum distinctly narrower than elytra and not broader than long, finely and densely punctated and the surface not or very indistinct- ly shagreened, therefore less dully glistening then in the preceding spe- cies; posterior margin in the o is at middle distinctly tumid. Elytra a little longer than pronotum, somewhat more distinctly, but less densely punctated than in reptans; abdomen anteriorly with rather robust and dense, posteriorly the fifth free dorsal Joint with scattered punctation. L. 2.5- 3 mm. Quite surely rarer and more local than reptans, with which it is easi- ly confused; in gnawings of bark-beetles on pine- and oak-trunks I have found a few specimens in the forests at Hilleriid. 4. P. latens Er. (^righs- ien. Spec. Staph. 78; ^ianglb. Kaf. M. II, 105. - major Kraatz Ins..:;. II, 338.- producta I.'.uls. et Rey ErtJvip. 1874, 447). Identifiable by tue rather strong gloss of the body, the isolated punc- tation of pronotum, and the color of elytra, also that the fourth free dor- sal joint of abdomen is notably more feebly impressed at base than the three preceding joints. -137- (Page 88) Black, glistening, rather sparsely haired; posterior half of the el- ytra red, abdominal tip brownish; antennal base, mouth-parts, and legs yellowish-red. The head with fine and scattered punctation, its temples and ^enae entirely mar^inated; antennal outer Joints (C-lo) less strongly trans- verse than in reptans; pronotura distinctly narrower than elytra, with rather fine and isolated, far less dense punctation then in the preceding species, its sides endowed with a fev^ long bristles; posterior margin in the cT^at middle slightly tumid and feebly incurved^ Elytra a little lon- ger than pronotum, rather finely and not densely punctated; abdomen an- teriorly with rather robust and dense, posteriorly scattered punctation, -/I the fifth free aorsal joint in the 0 most often with fine granulose punc- tation. L. 2.5-3 mm. Distributed in Ivliddle Europe; in this country heretofore only found sparsely in tne forests of Lolland-Falster (Kmrhr. Fabritius-Tengnagel , 4. SI, 5. 92). 2. Division lilyrmedoniina. The head is not snout-like produced; maxillary palpi most often rather short, their second and third joints as a rule not strikingly elongated; fore-tarsi 4-Jointed, middle- and gind-tarsi E-jointed. Key to tJenera. 1. thirst three free dorsal abdominal joints at aidet with yellowish tofts of hair. Pronotal sides broadly turned upward 2. First three free dorsal abdominal joints not with huir-tofts at side. Pronotal sides not broadly upturned at sides 3. -138- (Page 88) 2. Femora rather broad, at tip yellowish haired.: 18. Lomechusa Cfravh. Femora narrov. , at tip not yellowish haired 19. Atemelis Stiph. 3. Head feebly constricted behind; the constricted part more or less inserted into pronotum and more than half as broad as the head between the eyes (Fi^. 32, 36 et.al.) 4. Head strongly neck-formed constricted behind; the neck at most half as broad as the head between the eyes, oftenest much narrower (Fig. 89) 10. 4. First joint of hind tarsi elongate, as long as the two-three follow- ing joints together, most often longer than the claw-joint. (Fig. 32) 5. First joint of hind tarsi short or very short, at most 1^ times as long as the following joint, much shorter than the clav.-joint (Fig. 38) 7. 5. >Jalea of the maxilla peculialy long (Fig. 31.1. e.). Antennae robust with rather large distal joint (the species rather large. L. 4-6 mm) 20. Myrmedonia Er. Jalea of the maxilla not unusually long. Antennae fine, slender (spe- cies smaller or slenderer) 6. 6. Abdomen strongly narrowing posteriorly, its first tliree ventral joints not impressed at base. t-.yes large; temples very short 26. Lrachyusa Mul s. Abdomen e.iually broad or narrowing anteriorly, its first three ven- tral joints impressed at case, i^yes not unusually large, shorter than or about as long as the temples (Fig. 87. 88). : 27. Tuchyusa £r. -139- (Page 89) 7. Third joint of mexillery palpi proportionately larje and strongly thickened, distal ^oint especially small, coniciBl(Fij. 34). (the last two Joints of the antennae in our species is remark- ably elongated, cylindrical, fi^. 33) 22. Gallicerus iravh. Third joint of maxillary palpi normal, feebly thickened 8. 8. Mandibles with cleft tip (Fig. 35) (the species resembles a medium sized Komaloia; the head small. (Fig. 36)... 23. Schistoglossa Kr. I/.andibles with single tip 9. 9. Tongue cleft to the base, (the species evenly broad with yellow an- tennae and legs; it somewhat resembles a small Phloeopora; . . . . 24 . Tomoglossa Kr . The tongue cleft to the middle or only emarginate at tip (Fig. 37) 25. Homalota Er. (Kr. ). IC. Slytra much shorter then pronotum 21. Astilbus Steph. Elytra as long as or longer than pronotum 11, 11. Neck of the head about //j* as broad as the head between the eyes 28. Myrmecopora Saulcy. ?.'eck of the head very thin, 4 as broad as the head betv.een the eyes (Fig. 89) 29. Kala^rla Steph. 18. Jenus Lomechusa iravh, (viravh. Men. Micr. 178; Erichs. ien. Spec. Staph. 202; Kraatz Ins. E. II, 112; Thorns. Skand. 3ol. II, 241; Kuls. et Eey Bre'vip. 1873, 10; ;anglb. Kaf. I/.. II, 114). Those, to this ^enus belonging species arc true myrmecophi les, , v.hich in appearance, specialized body structure, and mone of livlnj are very unique, -140- (Paje 89) The body is broad, oblong and rooust, dorsally somewhat flat, but ven- trally ratner convex and abaomen upwardly curved. The posterior margin of the first three free dorsal abdominal joints on each side v*ith dense yellow hair-tufts; dorsally the body elsewhere with only extremely sparse, short and fine hair vestiture, almost naked. The head is small, not constrict- ed behind; temples and genae not margine ted; eyes small; antennae slender and rather lon^; mandibles small; second ^oint of maxillary palpi a little longer and more robust than the third, the fourth fine, short and subuli- form; the tongue short and very broad, feebly emarginated at tip; first joint of labial palpi is unusually thick and as long as the two other joints together; mentum broadly and deeply emarginated, its corners strongly pro- nounced. Pronotum is very broad vith upwardly turned sides and flatly incurved anterior margin, posterior margin at each side strongly and broadly in-*- curvea its middle thereby distinctly rounded and the hind corners rect- or obtuse-angularly prominent. The elytra together are broader than long and posteriorly not entirely covering the broad epimera of the mesothoraxj their posterior margin rather even, and inside the outer corners only very feebly Incurved. Abdomen is somewhat broadened posteriorly, ventral side convex, dorsal side concave with thick side-margins; when in motion as well as at rest it curves strongly upward. Its first turtic free dorsal joints are at base transversally grooved, the sixth broadly inourvrd with pro«- -inent, halr-tofted corners; aLdominal tip is strongly contracted and is only indistinctly visible. The legs are long and robust, nearest the coxae -141- (Page 89) the femora are somewhat constricted, at middle and distally broad, at knee-joints with dense yellow hair; fore-tarsi with 4, the others 5 joints; first joint of hind tarsi elongated, about as long as the two following joints together. (Page 90) Of the 2 European species, which belong to this genus, the one, inf lata Zett., has its habitat in Lapland, and is found with Formica rufa; the other, strumosa Jravh., is distributed in North and Middle iurope and also found in this country. It is proved that it lives exclusively in the ant-hill, there undergoing all its developing as a dependent foster child of the ant-hosts. The ants treat it and its young as their own, feed as well the beetle as its larvae with regurgitated nutritious juice, and take them along when changing abode. In return the beetle permits the ants to lick the juice vjhich it exudes on diverse places of the body, especial- ly the hair-tufts of abdomen. Furthermore it is later proved (E. "/asmann), that it is not always satisfied with the feeding by the ants alone, but also helps itself to some nourishment, inter alia, ant-eggs. The same is the case with its larvae. 1. L. strumosa ^ravh. (Jravh. ?'licr. 91; Erichs. -ten. Spec. Staph. 203; Kraatz Ins, L. II, 113; Thorns. Skand. Col. II, 242; Muls. et Rey Lr^vip. 1873, 13; Janglb. Kaf. v.. II, 115). Reddish-brown, greasy -jlistening; The head, thorax, and abdominal middle joints most often brownish-black. The head is flat, finely shagreened and Gull, anteriorly broadly grooved; the antennae not thickened diatelly, considerably longer than head and •142- (Page 90) pronotum together, their first joint thick, incurved at tip, the third much longer than the short second joint, the middle and next-last joints cupulif ormand short stemmed, distal joint longish tapering. Pronotum (see above) is about twice as broad as long, posteriorly as broad as the elytra, the sides immarginate, rounded anteriorly, posteriorly straigth with pronounced, almost rectangular, at tip slightly rounded off hind- corners, the dorsum at middle with very fine, scattered granulose punc- tation, the middle-line finely grooved, the upturned sides very finely shagreened. The elytra longer than pronotum, very finely and not densely punctated, the surface particularly finely reticulated, scarcely visibly and very sparsely , yellow haired; abdomen almost impunctate and smooth; posterior margins of its first three or four free dorsal joints at sides and on side-margins densely golden yellowish haired. L, 5-6 ram. It lives in the mounds with Formica sag^uinea (also in those with F. f usca mixed abodes), and is probably distributed with this ant; it is here- tofore only found in a few places in this country, in North S^aelland (Teglstrup Hegn near Helsingj/r, lisvilde 'legn, Ilolte) and either found running in the nearness of the mound or sifted from the contents of same, especially in the spring-months. Is said also to be found exceptionably with Form, rufa. (Page 91) 19. ienus Atomeles Steph. (Sttiph. 111. Brit. V, 1832, 107; Kraatz Ins. D. II, 114; Thorns. Skand. 3ol. II, 243; F/uls. et Rey Bre'vlp. 1873, 17; Janglb. Kaf. M. II, 109). This genus has, in structure or body and appearance, so much in com- mon with Lomechusa. that only the most obvious deviations are here set forth -143- (Page SI) The body is much smaller; antennae proportionately more robust, their third Joint shorter, but the distal joint longer. The hind corners of pro- notum are more elongated and acute, and the side-margins of the first three free dorsal joints of abdomen, but not the posterior margins golden-yel- low haired. The legs are less robust, femora slender and not haired at the knee-joints; hind tarsal first joint much shorter than in Lomechusa, much shorter than the second and third joints together. From the end of August to the beginning of June of the following spring the Atemeles species abide with Myrmica rubra (v. laevlnodis, v. ruginodis, V. ru: f or^ardly between the coxae; the legs long and slender; the fore-tarsi 4-jointed, the others 5-Jointed; first joint of hind tarsi longer than the two following Joints together, very elongated, longer than the claw-joint. Myrmedonia species are called "myrmecophile " (ant-friendly), but hard- ly appropriately, since their relation to the ants in reality is hostile. (Page 94) The flock to the ant hills, and often surround these in great numbers there to attack and consume single scouting or v.eak ants. The ants seem not to resent their effrontery so long as they stay outside the mound, where they lie in ambush under leaves, twigs and lumps of earth, but if they enter the ant hill, then tha ants persue them and seek to chase them out. "?hen persued or by any disturbance sense danger, they curve abdomen upward and forward, and seemingly then, more than ordinarily, exude a peculiarly sharp odorous moisture which the ants either are confused by, or dislike. In this country 7 species are found, of which collaris deviates from the rest, and must be placed in a special subgenus; several other species are together with these distributed in Middle Europe. Kig. 31. Head of Myrmedonia llmbata Tayk. (ventral view), g.gula- m. Qientum.- 1. tongue (ligula). - p. lab. tonguepalp.- l.i.lacina.- l.e. ^alea. - p. rax. maxillary palpi. - K.jena. - T. temple. -k. mar- gin of temple and gena.- 0. eye. Key to Subgenera and Species. 1. Fronotum with Isolated and deep nunctation; antennae with long, out- -148- (Fa^e 94) -standing bristles: 1. Subgenus Zyras Steph.- Pronotum vivid red. L. 4-5 mm 1. U, collaris Payk. 1. Fronotum densely and finely J)unctated, antennae without lon^, out- standing bristles: 2. subgenus Myrinrdonia s. str 2. 2. Pronotum not twice as broad as long..... .3. Fronotum short, twice as broad as long 6. 3. First four dorsal Joints of abdomen densely punctated; distal joint of the antennae as long as the three preceding joints together. L. 4. 5-5 mm 2. U. limbata Payk. Abdomen nearly impunctate and smooth; distal joint of the antennae as long as the two preceding joints together 4. 4. ^olor of body entirely black. L. 5 mm 3. M. funesta Oravh. Color of the body more or less brownish 5. 5. Pronotal sides posteriorly feebly incurved or almost straight. L. 5-6 mm 4, M. humeralis JJravh. Pronotal sides rounded, posteriorly not incurved, nor straight. L. 5 mm 5. M. co-;nata Mark. £. Elytra longer than pronotum, brownish-yellow, around scutellum and on the sides behind humery dark. L. 4.5-5 mm.:. 6. M. lugens Iravh. Elytra only as long as pronotum, entirely pitch-black or pitchy-brown. L. 3.5-4 mm 7. U.. laticollis Markl. 1. Subgenus Zyras Steph. 1. M. collaris Payk. (Payk. Fn. Suec. Ill, 401; trichs. Kaf. Mk. Br. I, 2S0; Jen. Spec. Staph. -14S- (Page 94) 43; Kraatz Ins. ?-. II, 122; Thorns. Skand. Col. II, 25f; J.-uls. et Pey Erevip. 1873, 46; Janglb. Kaf. M. II, 119). Amon^ our l.l.yrmedonia species easily identified both by the form, color and punctation of the forebody. The body is not of equal breadth as in the following species, but is anteriorly strongly narrowing, glistening, sparsely haired with many side- bristles; the head, elytra, abdominal tip, me so- and meta-thorax also the antennae except their tip near bleck or brownish black; pronotum and the (Pa-e £5) first 4-5 free abdominal joints vivid yellowish-red or red; the 3-4 last antennal Joints and the legs yellow. The head is a little narrower than pronotum, the sides with Isolated and rather coarse punctation, otherwheres smooth and polished; antennae robust, with outstanding bristles; pronotum much narrower than elytra, a little broader than long, posteriorly very feebly narrowing, with rather coarse and very scattered punctation with a small, deep fovea posteriorly before scutellum; elytra a little longer than pronotum, with not very dense, but coarse and rather deep punctation; sides of abdomen slightly rounded; its first three free dorsal jointt: deeply depressed at base, in the trans* versal grooves coarsely punctated, elsewhere together with ine lollowing joints almost smooth, polished. L. 4-5 mm. In the o the posterior margin of the sixth free abdominal Joint rounded at tip, in the 3^ slightly incurved and the corners tnereby feebly dentiform. It lives especially on moist ground and is mopt often found in alluvi- um, more rarely at ant hills with Lasius fuliginosus or Formica rufa; dis- tributed, but as a whole rare. -150- (Page 95) 2. Subgenus My r me don la s. str. 2. M. limbata Payk. (Payk. Uon. Staph. 54; Erichs. Keif. I«!k. Br. I, 288; Jen. Spec. Staph. 37; Kraatz Ins. 2. TI, 125; Thorns. Skand. Col. II, 258; Muls. et Key Brevip. 1873. 55; Janglb. Kaf. M. II, 123). This species is separated from all the following by the long distal joint of the antennae, and by the punctatlon of abdomen. Evenly broad, finely haired, glistening. Pitch-black, pitch-brown or red- dish yellow-brown; the head black; elytra at base and sides, also the fore- most abdominal joints more or less widely brownish-yellow; antennae, mouth- parts and lejs yellowish-red or rust-red. The forebody with very fine, the head rather isolated, pronotum dense or very dense punctation; antennae robust, their next-last joints twice as broad as long, distal joint large, as long as the three preceding joints together. Pronotum is 1^ times as broad as long, feebly narrowing pos- teriorly with rounded sides, a little narrower than elytra, which are no longer than pronotum. The first four free dorsal joints of abdomen with smooth, fine and rather dense, the following with more scattered puncta- tlon. L. 4.5-5 mm. In the 3* pronotum has a broad longitudinal impression at middle, deep- est posteriorly, and posterior margin of the sixth free dorsal joint of ab- domen semi-luner formed, the edge finely notched and the hind corners acute- ly produced. (Page 96) Distributed, but rare ana mostly singly, in company with Formica fusca, sangulnea and exsecta, also Laslus flavus and Myrmica rubrw. -151- (Page 96) 3. M« funesta Jravh. (iravh. Mod. 168; Erichs. Kaf. Mk. Br. I, 887; (Jen. Spec. Staph. 38; Kraatz. Ins. D. II, 124; Thoras. Skand. Col. II, 257; Muls. et Rey Brevip. 1873, 62; ianglb. Kaf. M. II, 122). Ey the slender form of the body and Its unicolorous black color, this species is easily separated from those most closely allied. Elongate and of even breadth, glistening black, very finely haired; antennae and mouth-parts rust-red; legs blackish-brown, their tibiae and tarsi most often brownish-red. Forebody very finely punctated, pronotum and especially the elytra finely and also densely punctated; antennae robust, the next-last Joints transverse, distal joint as long as the two preceding joints together. Pronotum distinctly narrower than elytra, 1^ times as broad as long and slightly constricted behind; elytra scarcely longer than pronotum; abdom- en smooth. L. 5 mm. In the d^ the pronotum in middle-line with a rather flat longitudinal groove, which posteriorly ends in a fovea, furthermore at each side often with an arcuate impression; the sixth free abdominal Joint posteriorly more evenly truncated than in the O , and the posterior margin indistinct- ly notched; the next-last ventral Joint is prolonged and rounded off at tip. It is only found with Laslus fuliglnosus, which it resembles in color, and is often found numerously around the mound of same; distributed with the host-ant. 4. U. humeralls Iravh. (iravh. Uicr. 90, iirich?. Kaf. I/k. Br. I, •387; Jen. Spec. Staph. :iO; Kraatz. Ins. D. II, 122; Thorns. Skand. Col. II, 2tf^i f/ul.-. et Rey tr^vip. 1873, 65; :;anglb. Kaf. M. II, 122). -152- (Page 96) Our largest species; recognized by its size and fiarthermore especial- ly by the color of the body and by the foru of pronotum. Pitch-black or pitch-brown; elytral humeri and base, also the foremost abdominal joints brownish-yellow or reddish yellow-brown; antennae reddish- brown, their base, mouth-parts, and the legs yellowish-red or brownish yel- low. The forebody is finely or very finely, and especially elytra, very dens- ely punctated, finely haired, somewhat glistening; the antennae (Fig. 32) rather robust, their second Joint small, the middle and next-last ones increasingly transverse, distal joint as long as the two preceding joints together. Pronotum a little narrower than elytra, somewhat broader than long, slightly narrowing posteriorly, with anteriorly rounded, posteriorly almost straight, or feebly incurved sides, dorsally rather flat with a more or less decided longitudinal impression in middle-line and an arcuate (Page 97) impression at each side; elytra as long as pronotum; abdomen almost smooth, glistening. L. 5-6 mm. In the 5^ the forehead is impressed at middle, Pronotal longitudinal impression broader and deeper than in the p ; posterior margin of sixth free dorsal Joint of abdomen is rather evenly truncated, the margin indis- tinctly serrated; the next-last ventral Joint prolonged and broadly round- ed off. father common everywhere around the mounds of Formica rufa, under leaves and twigs, less frequent with Lasius fuli^inosus. •I5:i- {Taze 97) 5. U, co.^nata Mark. (Mark. Stett. Ent. Ztg. 1842; Kraatz. Ins. D. II, 12:5; Thoms. Skand. Col. II, 256; rails, et Rey Brevip, 1873, 69; Janglb. Ka?. M. II, 122). Smaller and narrower than humeralls; identified especially by the color, characters of pronotum, and the sex-characters of o^ . Pitch-brown; humeri ori base of elytra, and posterior margins of the foremost abdominal Joints often yellowish-brown; antennae and legs brown- red or rust-red. Forebody very finely and densely punctated, denser and finer than in the preceding species, very finely haired with silky gloss; antennae rather strongly thickened distally, their next-last joints nearly tv^lce as broad as long, distal joint thick, as long as the two preceding joints together. Pronotum very little narrower than elytra, 1^ times as broad as long with rather smoothly rounded sides and scarcely narrowing posteriorly, convex and posteriorly before the scutellum with a depression which is divided into three parts; elytra as long as pronotum; abdomen smooth and glisten- ing. L. 5 mm. In the O the forehead is flatly depressed, thereby poBteriorly forming an arcuate, sharp transverse ridge across the vertex; the sixth free dor- sal joint of abdomen flatly emarginated and the margin very finely notched. It js mostly found in company with Lasius fuli-^inosus and may be en- countered numerously under leaves, fagot and in crumblings around its abode; it ie. distributed with the host-ant, can also, mbre rarely however, be found with ?ormica fusca (Lundby Hills at Aalborg) and Form, exsecta (Blokhus Hede, author). -154- (Page 98) 6. U. lug^ens iiravh. (iJravh. I.'Iicr. &5j Erichs. Kaf. Mk. Br. I, 289; len. Spec. Staph. 39; Kraatz Ins. E. II, 126; Muls. et Rey Bre'vip. 1873, 76; ^anglb. Kaf. M. II, 123). Shorter and comparatively broader than the preceding species; identified by the color and also especially by the short, broad pronctum. Rather short and broed, of even breadth; black, pitch-black or pitchy-brown I ^jlistening, finely haired; elytra brownish yellow, around scutellum and on outer hind corners more or less widely blackish-brown; the antennae brown, their base, the mouth-parts, posterior margins of foremost abdominal joints, and the legs brownish red or brownish red-yellow. The head with very fine, scattered punctation; antennae rather short, strongly thickened toward the tip, their next-last joints more than twice as broad as long, distal joint a little longer than the two preceding joints together. Pronotum almost as broad as elytra, short, twice as broad as long with rather smoothly rounded sides and rounded off hind corners, slightly convex, finely and densely punctated, with a suggested or feeble longitudi- nal impression posteriorly before scutellum; elytra distinctly longer than pronotum, with finer and denser punctation than same, their hair vestiture finely silky-glistening; abdomen almost smooth. L. 4.5-5 mm. In the O the forehead is slightly impressed, the posterior longitudinal Impression on pronotum is more distinct than in Q , and posterior margin of the sixth free dorsal joint of abdomen is slightly lnourv«<4, • '"ith I-asius f'lll.^inosus. but local and rare (K;rfge, .;rede, Donse, Ilillerod). 7. M. laticollls Mark. (Mark. Jerm. Ztschr. V, 203; Kraatz Ins. D. II, 127; Thorns. Skand. Col. ■155- (Paaje 98) II. 257; Muls. et Rey Bre'vlp. 1873, 61; ianglb. Kaf. M. II, 124). Our smallest species, easily identified ty the color and by the short, broad pronotum. Black; elytra most often brownish Liacic^ and posterior margins of the abdominal joints narrowly reddish-brown; antennae reddish-brown, their base, mouth-parts and legs brownish red. The forebody is very finely and densely punctated, very finely haired, with moderate silky or greasy gloss; antennae increasingly strongly thick- ened distally, their next-last joints at least twice as broad as long, the distal joint as long as the two preceding joints together. Pronotum is short, and broad, twice as broad as long, across the middle as broad as elytra, with smoothly rounded sides and rounded off hind corners; elytra very little longer than pronotum; abdomen glistening, along posterior margins of the individual dorsal joints sparsely and finely punctated, elsewhere smooth. L. 3.5-4 mm. In the 5^ the forehead is flatly: depressed , pronotum with densely and finely shagreened surface, dully shining, with a feeble, broad longitudinal impression at middle, occasionally slightly grooved in middle-line; poster- ior margin of the sixth free dorsal joint of abdomen very finely serrated at the edge;- (Page 99) It is distributed with the ant/lasius fuliginosus, and is often lound numerously around the ant hill, together with several of the preceding spe- cies. 21. jenus Astllbus Steph. (Steph. 111. brit. fcnt. V, 1832. 1C6; Ihoms. Skand. Col. II. 259; ^anglb, -156- (Pa^e SS) Kaif. t!.. II, 124. - Drusllla Boisd. Lac. Fn. Znt. 1835, 554; t^uls. et Rey Erevip. 1873, 90). The one single, to this ^enus belongin.^, and widely distributed North and Middle European species differs not significantly in structure of mouth- parts, mesothorax and tarsi from Myrraedonia, to which genus it often has been assigned (Erichson, Kraatz). But the form of the body is much nar- rower and more slender than in the true Myrmedonia. furthermore the head is much more strongly constricted behind, the constricted portion more neck-formed and scarcely half as broad as the head; the temples and jenae not marginated. Pronotum is distinctly longer th^n broad and the elytra peculiarly abbrevitited and rather flat, this is due to the species being wingless. Abdomen is somewhat dilated posteriorly, its first three free dorsal joints very strongly depressed at base; legs very slender. Several Astilbus species are found in South 3urope ; like our follow- ing species they prefer semi-damp ground, and often occur in alluvium, are occasionally also encountered with ants, but are seemingly not as a whole 60 decidedly dependent on the ant hill and its tennants as most of the Wyrmedonlas. 1. A. canaliculatus Fabr. (Fabr. Want. Ins. 1787, I, 221; iirichs. Kaf. Mk. br. I, 290; Zen. Spec. Staph. 36; Kraatz, Ins. D. II, 129; Thoms. Skand. Col. II, 260; Muls. et P.eyBr^vip. 1873, 93; Janglb. Kaf. M. II, 125). Elongated and narrow, very finely and sparcely haired; forebody feebly, abdomen more strongly glistening. Light red-brown; the head and tiie two- three next-last abdominal joints black; antennal base, mouth-parts and legs reddl<;h yellow. -157. (Page 39) The head is scarcely narrower than pronotum, both with robust and dense or very dense punctation; antennae rather lonj and slender, their third joint much longer than the second, the next-last feebly transverse. Pro- notum narrow, distinctly longer than broad, slightly narrowing posteri- orly, narrower than elytra, with rounded off hind corners, at middle either deeply, broadly and longish ( o* ) or only posteriorly feebly ( o ) Impress- ed, the impression in middle-line sharply grooved and with a small fovea before scutellura. Elytra are almost only half as long as pronotum, v;ith extremely dense, and coarse scabrous punctation; abdomen vvith fine, anter- iorly isolated, posteriorly very scattered punctation. L. 4-5 mm. (Page 100) In the o pronotum in almost its entire lenght, but especially posteri- orly, i& hollowly impressed; posterior margin of the sixth free abdominal joint Is broadly ^nourved and finely serrated. Distributed everywhere and rather common on seni-damp ground; frequent in alluviurr^; it sometimes occur with Myrmica rubra, presumably lying in wait for, attacking and devouring lone scouting ants. 28. "Jenus Galllcerus 5ravh. (Jravh. Micr. £6; Kraatz, Ins. D. II, 137; Muls. et Rey Br^vip. 1873, 110; ;anglb. Kaf. W. II, 127. - qemiris Thoms. Skand. Col. II, 299). The head is porrect, posteriorly rounded off and rather strongly con- stricted; eyes prominent, temples and jenae not marginuted; antennae long and comparatively robust, in our species remarkable by thw very elongated tenth and eleventh joints (Fig. 33). Third joint of maxillary palpi (Fig. 34) is unusually thick and longer than tn-, second, the fourth, distal joint very -158- (Page 100) small and conical; the tongue rather short and broad, cleft to the middle; labial palpi short. Pronotum is much narrower than elytra, a little broader than long with rounded off, strongly deflected fore-corners and posteriorly slightly con- tracted sides; elytra ^ time lonijer than pronotum, their posterior margin inside the outer corners feebly irrourved; abdomen rather evenly broad, its first three free dorsal joints depressed at base; legs slender; fore- tarsi 4-jointed, the others 5-jointed; first joint of hind tarsi very little longer than the second, the two together somewhat longer than the claw- joint. The species live on damp ground; several species occur in f,5iddle and Test Europe, of which only 1 is found in this country and in the rest of Morth Burope. Fig. 33. Antennae of Callicerus obscurus Oravh. Fig. 34. i/axillary palpi of Oallicerus obscurus CJravh. 1. C. obscurus Gravh. (Jravh. Uicr. 66; Kreatz. Ins. D. II, 138; Thorns. Skand. Col. II, 299; L'uls. et Rey Brevip. 1873, 116. Janglb. Kaf. M. II, 128. - jjiomalotaj cal- licerus Erichs. Kaf. Mk. Br. I, 319; den. Spec. Staph. 84). Black, finely gray-haired; forebody dull, abdomen glistening; elytra balckish-brown or reddish-brov^n, legs brownish yellow, most often v.ith darker femora. (Page 101) The head is nearly as broad a? pronotum, sllghtjy flatenod at middle, finely grooved In middle-line, impunctate, l)ut the surface as well as that of jro- notum finely and densely shagreened, and therefor'^ dull. .The peculiarities •159- (Paje 101) of the antennae in this species serve as an easy identification mark, the antennae are nearly as long as the foreboay, rather robust, their second and third joints are of almost equal len^ht, the fourth, fifth and sixth feebly, the following three more strongly, increasingly shortened and trans- verse, the tenth joint cylindrical and as lon^ as the two (^ ) or three (^) preciding joints together, the distal joint is nearly twice as long as the tenth, rather cylindrical, obtuse tip.. Pronotum much narrower than elytra, fully as broad as long, anteriorly rounded off, poeteriorly feebly narrowing, with obtuse-angular hind corners, slightly convex, very finely or indistinctly punctated, feebly grooved in middle-line posteriorly; el- ytra k time longer than pronotum, very finely, densely punctated, the sur- face especially finely and densely shagreened; abdomen sparsely haired, with fine and rather scattered punctation, the hindmost joints almost smooth. L. 3 . mm. Rare or very rare, especially on damp, marshy forest ground under leaves and moss. (Uunkemose at Odense; Damhusmose at Copenhagen, Frerslev Hegn et al. near Hillerod). 23. "Jenus Schl stoglossa Kr. (Kraatz. Ins. C. II, 344j Thorns. Skand. Col. Ill, 97; Huls. et Pey Br^- vlp. 1675, 336; ianglb. Kaf. M. II, 130). The one species belonging to this jenus, upon which Kraatz has found- ed the genus, was by Krichson assigned to Homalata, which it as a whole very much resembles. It deviates from this jtinus namely in, that the short, robust mandibles (Fig. 25) are cleft in two at the tip, and that the tongue (Fig. 35a) is more deeply cleft, almost to the base, into two somewhat sep- -160- (Pase 101) arated narrow lobes. Turthermore the following remarks: The body is slender and rather of even breadth; Ihe head small, rounded, rounded off posteriorly but not constricted, much narrower than pronotuir, V. ith ordinary large, hardly prominent eyes and very finely marginated temp- les; antennae rather long and slender, feebly thickened distally, finely bristle-haired; maxillary palpi rather slender, their third joint somewhat thickened and a little longer than the second, the last one very fine, small, subulif orm. Pronotum nearly as broad as elytra, ik times as broad as long with round- ed sides, rounded off fore-corners, and not entirely rounded off hind corners, (Page 108) slightly convex; elytra longer than pronotum, their posterior margin in- side the outer corners feebly incurved; abdomen rather evenly broad, its first three free dorsal joints depressed at base; legs rather slender; fore-tarsi 4-jointed, the others 5-jointed; first joint of hind tarsi short, however a little longer than the second, much shorter than the claw-joint. The species is distributed in North and Middle Europe, especially on boggy forest end meadow ground, and is also found in this country. 1. S. viduata Er. (Erichs. Kaf. Mk. Br. I, 330; 3en. Spec. Staph. Ill; Kraatz Ins. T. IJ, 345; Thorns. Skand. Col. Ill, 97; Muls. et Rey Br^vip. 1875, ?39; "Janglb. Kaf. U. II, 131). In conjunction with the generic characters especially identifiable by the very fine, silky glistening hair vestiture of the body, and by the punc- tation of abdomen, also by the sex-characters of o' . (Fig. 36). -161- (Page 102) Black, very finely yellow-grayish haired, with moderated silky gloss; antennae brownish, their base, mouth-parts and legs brownish yellow or yel- lowi?h-red. Surface of the body all over especially finely and densely shagreened; the head with very fine, scattered punctation, and often with a small fovea at middle; antennae considerably longer than head and pronotura to^jether, slightly thickened distally, their first three joints rather elongated, of equal length, the fourth longer than broad, the next-last about as broad as long, distal joint oblong-tapering. Pronotum (see above) is anteriorly more rounded and narrowing than posteriorly, behind middle about as broad as elytra, very finely and densely punctated, with a more or less distinct transverse fovea posteriorly before the scutellum, and in the o a flat lon- gitudinal impression at middle, most distinct posteriorly. Elytra 1 '/s times as long as pronotum, with very dense, rather fine scabrous punctation; ab- domen feebly tapering posteriorly, its first four free ciorsal joints with dense and fine, the following more robust, distinctly scabrous punctation. L. 3-4 mm. Next in importance, after the distinct longitudinal impression on pro- notum, fls identification character, is that the punctation of the fifth and especially sixth free dorsal Joints of abdomen in the o^is much more robust than in the O , finely muricate; posterior margin cf the sixth free joint is straight and very finely serrated. Very rare and local; especially on bog^^y meadow and forest ground, also on marshy ground and in alluvium at miry lake shores (Odense; Ilillerod, and other places in Nordsjaelland) . -162- (Page 103) On account of much similarity in appearance, form, color, size etc. S. viduata can at first glance be confused with Oxypoda funebris; by closer investigation it is however easily separated from this species by, that the fore-tarsi are only 4-jointed, and that the first Joint of hind tarsi is short, that the antennae are longer, their third joint more slender end as long as the second, and that the body as a whole, but especially abdom- en is less finely and densely punctated than in 0. funebris. It also in sev- eral respects resembles certain species of Metaxya. subgenus of Homalota, such as: H. clavipes, i slandia, Aubei ; the determining characters here - next after the cleft mandibles - i^in be its small head, punctation of ab- domen, sex-characters of the O , and the modulated, gray, silky gloss of the body. 24. Jenus Tomoglossa Kr. (Kraatz. Ins. D. II, 342; Uuls. et Rey Bre^'vip. 1875, 331. Janglb. Kaf. :/. II. 131;. Mainly by broader labrum, slenderer mandibles, and especially by more deeply cleft tongue Tomo-;lossa differs from the otherwise very closely al- lied genus Homalota. from which its single European species is separated by Kraatz. The body is narrow and of even breadth, in appearance and form it some- what resembles a small Phloeopore. The head is almost as broad as prono- tum, transverse-square with rather straight sides and rounded off temple corners, distinctly constricted behind, porrectj eyes ordinarily large, slightly convex; temples and j^enne indistinctly marglnated; antennae rather short, as long as head and pronotum together, slightly thickened distally; -163- (Paje 103) labrum very short and broad, amply three times as broad as loti^, sli^tly eraarginated anteriorly and narrovvin^j posteriorly; mandibles broad at base, elsewhere very slender and fine; maxillary palpi rather short, their third joint rather strongly thickened and longer than the second, the fourth very small and fine, subuliform ; the tongue short, cleft to the base into two separate lobes ; third joint of labial palpi cylindrical, twice as long as the short second joint. Pronotum as broad as elytra, very little narrowing posteriorly vlth feebly rounded sides, nearly rounded off fore-corners, and rounded off obtuse-angular hind corners, slightly convex; elytra distinctly longer than pronotum, with parallel sides, their posterior margin inside the outer cor- ners feebly incurved; abdomen evenly broad, its first three free dorsal joints feebly depressed at base, the fifth longer than the fourth; the legs rather short; fore-tarsj 4-jointed, the others 5-jointed; first Joint of hind tar- si same as in Momalota, short and net longer thon each of the following three, almost S'lually long joints, shorter than the claw-joint. (Page 104) To this genus only 1 Middle Suropean species, which also is found in this country, very rare everywhere. Kraatz presumes that it lives fider bark, but according to Mulsant et Pey and Janglbauer it is especially found on jamp ground and in alluvium. 1. T. luteicornis Er. (Erlchs. Kaf. Mk. Br. I, i3?,; Jen. Spec. Staph. 124; ?:raatz Ins. D. II, 343; J.'uls. et Rey Brevip. 1875. 334; Janglb. Kaf. M. II, 13?,). ■164- (Pass 1C4) Next after the characters and peculiarities set forth In the generic description this species is furthermore identifiable by the, as a rule, entirely yellow antennae and lejs. Pitch-blacic, rather feebly ijlistening, finely haired; the elytra either entirely, or at least their posterior part, also most often the abdominal tip reddish-brownj antennae, mouth-parts, and le^s yellow or brownish yel- low . The head robustly punctated; first ^oint of the antennae rather thick and as lonj as the follovin^j two short Joints t0;5.ether, the second joint reverse-conic, tho third considerably thinner and also shorter thsn the second, the fourth small and as long as broad, the following outer joints feebly increasingly transverse, so that the next-last ones become fully 1^ times as broad es long. Pronotum (see above) is finely and densely punctated, without impressions; elytra Vi" longer than pronotum, more ro- bustly, but a little less densely punctated than same; abdomen of even breadth, anteriorly with fine, but sharp and rather isolated, posteriorly scattered punctation, somewhat long-haired and with many sido-bristles at the tjp. L. '•'. mm. In the V the next-last dorsal joint of abdomen somewhat prolonged and roundeQ off at tip. In the ;^oologlc8l Museum's Danish Staphylin- :;ollectlon (Copenhagen) two older specimens are found, but without collecting data; in later time - as far as I know - not refound in this country. One specimen sent by Mr. Saint Qlaire Deville, Paris, corresponds with the above discription, and with the two specimen in the Museum. -165- (Page 104) 25. Jenus Homalota iir. (Kr.)« ((Mannh. Brach. 73). Srichs. Kaf. r.'k. Br. I, 314; Jen. Spec. Staph. 8C; Kraatz Ins. D. II, 19?; Sharp. Rev. Brit. Horn. 1869. - Thorns. Skend. Col. II and III (see followlnij 23 subgenera according to Thorns.). - f/uls. et Fey Erevip. 1873 and 1375 (Homalotates sx.p.). - Janjjlb. Kaf. U. II, 1895: Thamlaraea 125+-2M£MS. 132-f- Notothecta 133-fAtheta 13e-f- :?nypeta 241). "'ithin the division Myrmedoniina this numerous and extensive jenus is especially characterized by: that the head posteriorly Js only feebly or not constricted, that the tongue (Fi^.S?) is cleft about to the njddle in- to two narrow, feebly diverging lobes, and that the first Joint of hind tarsus (Fig. 38) is short, as long as, or sometimes somewhat longer than the (Page 105) second, and much shorter than the clavj- joint. - Otherwise, the manifold species of this genus present considerable differences both in appearance and in details of the body: Several species iQiappearance resemble Oxypdda, others reminding of Tachyusa, Myrmedonia, Ocelea or Leptusa. The body is ordinarily noire or less elongate and slender, slightly con- vex, rarely short and broad, as a rule finely haired; the head most often rounded or roundly transverse, or oval, but can also occur square with par- allel sides (subg. Dadobia) or broadest behind the eyes and triangularly rounded off (subg. AmJ scha) . It is not especially porrect and very little or not constricted behind. Temples and genae in most of the subgenera are more or less distinctly and entirely marginated, in several ( subg.Lio;;luta et al.) only marginated posteriorly, in otners not marginated (subg. Dlnaraea, Aloconota et al.). The eyes are most often longer than the temples and of normal size, but not a few species have small or very small eyes and longer -166- (Pa^e 105) temples (subg. Meotica, Aleuonota ot al.). The antennae are of very differ- ent length and thickness, and thereby often afford very important identi- fication characters for subgenera and species. Only in a few c.-ses are the mandibles somewhat protruding (subg. Halobrechta) . one of tnese as a rule armed v, ith a small tooth on the inner side. The third joint of maxillary palpi is longer than the second, and somewhat thickened, the fourth small, subuliform; the tongue (Fi^. 37) narrow and short, cleft almost to the middle; first joint of labial palpi longer than the second and third. Pronotum varies in form, most often narrower than elytra, sometimes transverse, i.e. broader than long, sometimes as long as broad or longer. Its more or less rounded or straight sides are in many species provided with singly outstanding bristles; on the dorsum the impressions on prono- tum, where such occur, oftenest more distinct in the o^ than in the o ; posterior margin can in some instances be incurved inside corners so that these thereby become more prominent (subg. Notothecta) . Elytra very rarely shorter than pronotum (subg. Jeostiba et al.), as a rule they are distinct- ly longer than same. Their posterior margin inside the outer corners feeb- ly or noi Incurved. In several subgenera abdomen is distinctly, however more or less, taper- ing (subg. Goprothassa. Acrotona et al.); in the majority of the species it is rather of equal breadth and only tapering at the hindmost Joints. Llost often only the first three dorsal joints are transversally depressed at base, but several species are also found in which the first four dorsal joints at base are transversally grooved (subg, Bessobia, Plataraea, et al.), seldom -167- (Page 105) is only the first free dorsal joint distinctly depressed (subg. Dilacra et al.) — (Pa-e 1C6) — and only in few species (subg. Srypeta) are the first two-three ventral joints impressed at base, whereby the come nearer to the following genus Tachyusa. In a great number of species the next-last joints, especially In the 5^, provided with sex-characters, which on account of their very dif- fering form afford valuable specific characters, f'iddle-coxae are only in a few instances (subg. Thamiaraea, Notothecta) separated by a broad inter- val; they are most often narrowly separated and lie more or less closely together or they are contiguous at middle; tip of mesosternum is prolonged in between them to varying extent; only in few species is this tip very short and rectangular (subg. Kygroecia) . The legs are more or less slender; fore-tarsi 4-jointed, the others 5-jointed. Ordinarily the first three-four tarsal joints are eiually short, but occasionally however the first joint of hind tarsus is about Is times as long as the second (subg. ;Qoconota. Dilecra et al.), n«^arly always much shorter than the clav.-joint (Fig. 36). The Homalota species are found practically everywhere in free nature where Staphyl inidae can thrive at all. A greet many live on damp or serai- damp woodland ground or in meadows and marshes under the plant cover; other? prefer s^ndy sea-fhore or strand; many seek manure, carrion, fungi or rot- ting plants; several occur under bark on half-dead trees and stubs, or are found at out-flowing tree-sap and in hollow trees in gnawings; a few species live permanently with ante, and one in the leaf-sheaths of common cat-tail. Ihelr larvae are very little known. ■166' (Page 106) The ^enus Homalota, according to the conception of Kraatz et al., in- cludes at least 200 Middle and North European species, of v^hich about 140 are found in this country. The attempts made by diverse authors (Thomson, Mulsart et Rey , et al.) to divide this great number into a series of coor- dinate genera (Thorns. 26, Muls. 4C), has not yet found universal favour, or absolute approval. In the following the genus is therefore presented as inclusive as it is described by Kraatz and Sharp, however with the limi- tations which are the result of, that the number of tarsal joints are basic for the division of the Aleocharini. "7hile for instance, as afore said, the fore tarsi of Homalota as a rule are 4- jointed, and middle and hind tar- si £-jointed, there is however three North European, older Homalota species which differ in this, namely Hom. plana iyllh., Hom. cuspidata Sr. , and Horn, notha lir. ; in these both fore- and middle-tarsi are 4-jointed, and only the hind tarsi 5-jointed. They are therefore here separated and transferred to Dolitocharina the third division of Aleocharini, v-here they belong, and where they form the genera Epip^ida Muls. (H. plana), Thectura Thorns. (H. cuspidata) and Brachida Uuls. (H. notha). For the purpose of simplifying the aecisions as much as possible, the genus Homalota is divided in the following into a great number of subgenera (agreeing namely with Thomson's and iMulsunt's genera), which again are ar- ranged in five series on account of the differing form of abdomen, the trane- (Page 107) versal impression of its first three or four free dorsal joints, size of the eyes, and the finer or coarser structure of the antennae. A few subgenera and species are, for safety's sake, includea in the key, in several places. -169- (Page 107) In opposition to Kraatz and Sharp, but in agreement with Mulsant et Fey and ■Janglbauer, the species with tapering abdomen are placed first, while those with slender antennae come last. This arrangement accomplices, that Ihamiaraea and Notothecta as some of tne most deviating subgenera are placed closer to Myrmedonia. while subgenus Jnypeta, which likewise is very deviating, ter- minates the series of subgenera with transition to the most closely allied and following genus Tachyusa. In place of the generic name Homalota Uannh. , which Thomson and Jangl- bauer only accept for Horn, plana iyllh. (as type) and a few other species, these authors place the greatest number of older Homalota species under the generic name Atheta Thorns. This altering is however not yet commonly accept- ed, and as we in our collections and catalogs heretofore always have used the oldest name according to Erichson and Kraatz, and furthermore as the species Horn, plana has not so far occurred in this country, we have only applied Thom- son's name Atheta, as the name of one subgenus in the following. Key to Series,: Subgenera and Species. 1. Abdomen posteriorly narrowing, more or less, yet always distinctly taper- ing (Fig. 43); First series 5. Abdomen distinctly of even breadth or only posteriorly tapering at tip (Fig. 47) 2. 2. The first two-three free dorsal Joints of abdomen, rarely the first only, transversally depressed at base (Fig. 47) 3. The first four free dorsal joints of abdomen transversally depressed at base (Fig. 71), the fourth however occasionally less strongly (especi- ally in the^)than in the preceding three: Third series 89. -170- (Page 107) 3. Eyes small or very small, much shorter than the temples (Fig. 74): Fourth series £9. Eyes larger, rather normal, most often as long as or longer than the temples, rarely a little shorter than these (subg. Aloconota) 4. 4. Antennae more or less robust and distinctly thickened dlstally; their middle and next-last joints (5-10) transverse (i. e. broader than long), rarely as long as broad (cf. H. incognita and ravilla) : Second series 40. Antennae more or less slender and as a rule only feebly or very feebly thickened distally (Fig. 36)} their middle- and next-last joints (5-10) as long as broad or longer, very rarely feebly transverse (H. terminalis, hypnorum) ; Fifth series 110. First Series 5. Middle-coxae broadly or rather broadly separated (Fig. 39) (species live especially in the galleries of the ^gssus larvae or with the ant6).:6. Uiddle-coxae narrowly separated or contiguous 10. 6. Temples and genae marginated. Antennae robust, their middle- and next- last joints strongly transverse, not closely compact (species live in galleries of the Cossus larvae and at tree-sap): 1. subg. Thamiaraea Thoms 7. Temples and genae not marginated. Middle- and next-last joints of anten- nae more feebly transverse, closely compact (species live in ant hills 8. -171- (Page 108) 7. Abdomen almost smooth, only anteriorly with isolated punctation. I. 4- 5 mm 1 . H« cinnamomea aravh . Abdomen anteriorly densely and rather robustly punctated. L. 4 mm 2. H. hospita Mark. 8. Pronotum with sharp intire median groove. Body dull or dully glistening: 3. subg. Lyprocorrhe Thorns. - Abdomen finely punctated to the tip. L. 3 mm 5. H. anceps Er. Pronotum without median groove. Body greasy glistening: 2. subg. Noto- thecta Thorns 9. 9. Antennal middle- and next-last joints (5-10) only feebly transverse. L. 3.5-4 mm 3. H. confusa Mark. 1&. Pronotal epipleura strongly incurved and not visible from side; side- margins uniformly .curved to the fore-corner. Pronotum slightly nar- rowing anteriorly without longer side-bristles, most often as broad as or broader than elytra. Abdomen rather strongly tapering, (species in appearance reminiscent of Oxypoda'; 11. Pronotal epipleura less strongly incurved and often visible from side; side-margins anteriorly more strongly arcuate, curving downward. Pro- notum not narrowing anteriorly, most often narrower than elytra, its side-bristles most often long, more rarely (subg. Datomicray short and indistinct 22. 11. Ihird joint of the antennae longer than the second: subg. Ooprothasa Thorns 12. Third joint of the antennae shorter than the second or at most as long as this. 14. -172- (Page 108) 12. Fourth Joint of antennae transverse. Pronotum dully ^^listening. elytra light brownish-yellow. L. 3.5-4 mm 6. H. sordida Marsh. Fourth joint of antennae as long as or longer than broad 13. 13. Fourth joint of antennae as long as broad. Elytra a little longer than pronotum, brownish-yellow with black sides and a large triangular black spot around scutellum. L. 3 mm 7. H. melanaria Mannh. Fourth joint of antennae longer than broad. Elytra short, not longer than pronotum, brov.n. L. 3-4 mm 8. H. consanguinea Epp. 14. Abdomen to the tip with dense or rather dense and smooth, fine silky glistening hair vestiture; the fifth free dorsal joint much longer than the fourth: 5. subg. Colpodota IjIuIs 15. Abdomen posteriorly sparsely and not silky-glistening haired, its fifth free dorsal joint oftenest not longer than the fourth 17. 15. Antennal base brownish or reddish yellow. L. 2.5-3 mm.: S. H. pygmaea Jravh, Antennae entirely black or blackish-bro\.n, scarcely lighter at base.. 16. 16. Antennae rather long and slender, their third joint as long as the second. L. 2.5-3 mm 10. H. aterrima -iravh. Antennae rather short, distinctly even though feebly thickened distally, their third joint shorter than the second. Pronotum with groove or without groove (v. muscorum Dris.) in medial-line. L. 2-2.5 mm 11. H. parva Sahib. 17. Pronotum grooved posteriorly at middle-line. Antennal first joint not much thicker than the second; 6. subg. Solenia Muls 18. Pronotum without groove in middle-line. Antennal first Joint most often thicker than the second: 7, subg. Acrotona Thorns 19. -173- (Page 108) 18. Antennae black or pitch-brown, scarcely lighter at base. Head peculiar- ly small, narrow. L. 2.3-2.5 mm 12. H. subsinuata £ir. Antennae rust colored with yellow base. Head rather broad. L. 2 .5-3 mm 13. H. laticollis Steph. 19. Antennal third joint distinctly shorter than the second. L. 2 mm 17. H. orphana Sr. Antennal third joint hardly shorter than the second 20. 20. Antennae entirely reddish-yellow or brownish toward the tip; their first joint li times as thick as the second. L. 2-3 mm. : 14. H. fungi Jravh. and 14a. v. clientula Kr. Antennae pitch-brown or brown, at base not or very little lighter; their first joint twice as thick as the second 21. 21. Elytra darkly brown. L. 2.5-3 mm 15. H. orbata ir. illytra brownish yellow, most often darker around scutellum. L. 2.5-3 mm ." 16. H. pulchra Kr. (Page lOS) 22. Third joint of antennae decidedly shorter than the second. Pronotal side- oristles short or indistinct, (species small: L. 1.5-2 mm., black): 8. Bubjj. Datomicra Mul s 23. Ihird joint of antennae as long as or longer than the second, rarely a little shorter than this (parvula, setigera). Pronotal side-brist- les long and robust 29. 23. Pronotum twice as broad as long. Head, pronotum, and elytra with re- markable sharp punctation. L. 1.5 mm 18. cribrata Kr. Pronotum 1 '/j -ik times as broad as long 24. -174- (Page ICS) 24. Head and pronotum dull or dully glistenins 25. Mead and pronotum glistening 28. 25. Abdomen densely and smoothly punctated to the tip 26. Abdominal first three free dorsal joints densely punctated, the tv»o following less densely 277 26. Distal joint of antennae rather short, not longer than the two next- last joints together. Abdomen tapering very little. L. 1.2 mm... 19. H. canescens Sharp. Distal joint of antennae rather long, longer than the two next-last joints together. Abdomen distinctly tapering. L. 1.5 mm.: 20. H. sordidula Er. 27. Head broader than long. Elytra i longer than pronotum. L. 1.5 mm... 21. H. celata Br. Head as long as broad. Elytra //j> longer than pronotum. L. 1.5 mm 22. H. germana Sharp. 28. Antennal next-last joints (7-lC) feebly, yet most distinctly, transverse. Pronotum not or only indistinctly grooved at middle-line . .L. 1.5-2 mm 23. H. zosterae Thorns. Antennal next-last joints as long as broad. Pronotum distinctly grooved at middle-line. L. 2-2.5 mm 24. H. hodierna Sharp. 2&. Antennae peculiarly long, almost ao long as head, pronotum, and elytra together; only their first five joints bristle-haired, the follow- ing pubescent and dull, of even breadth and at least as long as brond: &. subg. Ghaetida Muls. (Fig. 43) 30. Antennae shorter than head, pronotum and elytra together; all their joints -175- (Pa^ie lOS) most often with more or less long bristle-hair: 10. subg. Dimetrota Mul s 31 . 30. Antennae robust; their third joint j-oint longer than the second. L. 3-3.5 mm 25. H. lon^lcornis Jravh. Antennae slender, thin, their third joint about as the second. L. 1.5- 2 mm 26. H. macrocera Thome. 31. Antennal third joint shorter than the second, (species small, L. 2 mm.).. 32. Antennal third joint as long as or longer than the second, (species larger, L. 2.5-4 mm.) 33. 32. Pronotum 1^ times as broad as long. The middle and hindmost tibiae with long and robust outstanding bristles. L. 2 mm. : 27. H. parvula Mannh. Pronotum 1 '/_9 times as broad as long, bristles of tibiae short and fine. L. 1.5-2 mm 3C. H. setigera Sharp. 33. The next-last three-four antennal joints distinctly transverse, at least 1^ times as broad as long 34. The next-last three-four antennal joints not or only indistinctly trans- verse 36. 34. ilytra coal-black. Legs black with reddish knees and tarsi. L. 2.5 mm. 28. H. nigrlpes Thorns. Elytra bro\An or brownish black. Le^s brownish yellow or yellowish-brown with darker femora 35. 35. Forebody with feeble or no bronce lustre. Legs brownish yellow. L. 2.5-3 mm. ^:9. 11. laevana f/.ul s. Forebody most often v.ith distinct murky bronce lustre. Legs yellowlsh- -176- (Page 10&) -brown with darker femora. L. 2.5-3 mm 31. H. atramentaria Jyfclh. 36. Antennae entirely black or pitch-brown, scarcely lighter at base.... 37. Antennae pitch colored or brownish-red, as a rule lighter at base: brown- ish red or reddish-yellow 38. 37. Head and pronotum glistening, black, without bronze reflection. Pro- notum nearly twice as broad as Ibng. L. 3-3.5 mm. ..32. H. cadaverina Bris. Head and pronotum feebly glistening, black with bronza reflection. Pro- notum 1 '/6 times as broad as long. L. 2.5-3.5 mm.: 33. H.picipennis ^'annh. (Page 110) 36. Elytra li times as long as pronotum and much broader than this. L. 3.5- 4 mm 36. H. marcida Er. Elytra at most \'/3 times as long as pronotum 39. 39. Elytra brownish-red. Antennal second and third joints of same length. L. 2.5-3 mm 34. H. cinnamoptera Thorns. Elytra yellow or brownish yellow, often darkly shaded around scutellum and on the sides. Antennal third joint distinctly longer than the second. L. 3-4 mm 35. H. intermedia Thoms. Second Series. 40. Head coarsely punctated (species live exclusively on the strand under seaweed); 24. subg. Halobrechta Thoms 41. Head 1 Inely punctated 42. 41. Elytra \\ times as long as pronotum. Antennae and legs reddish-yellow. L. 3-3.5 mm 82. H. atricilla Scriba. Elytra ij times as long as pronotum. Antennae pitch-black, their base, -177- (Pa-e lie) and the legs brown or reddish yellowish-brown. L. 3-3.5 mm 83. H. puncticeps Thoms . 42. Uesosternum with short, almost rectangular tip, which scarcely reaches in between the coxae. Abdominal fifth free dorsal joint not longer than the fourth : 26. subg. Eygroecia Lluls 43 Mesosternum with very elongate and narrowing tip, which at least reach- es to middle between coxae 44. 43. Antennae reddish yellow, their third Joint a little shorter than the second. Head lar^e, almost as broad as pronotum. L. 3-3.5 mm 80. E. debilis Er. Antennae pitch-brown with lighter base, their third joint distinctly shorter than the second. Head narrower than pronotum. L. 3-3.5 mm. 81. n. falliciosa Sharp. 44. Temples and genae not marginated. (Head broad, body rather evenly broad, slightly depressed): 22. subg. Dinaraea Thorns 45. Temples and genae entirely marginated or at least dis'tinctly marginated posteriorly 47. 45. Abdominal first four free dorsal joints very densely and finely punc- tated, dull, the fifth lest dansft^.y punctated, glistening, in the O with two-three transverse rows of granules (J'ig. 66). L. 3-4 mm. 77. H. angustula iyllh. Abdominal first three free dorsal joints with fine and dense, the fol- lowing with scattered and isolated punctation 46. 46. Head and pronotum entirely dull. Indistinctly punctated. Abdominal fifth -178- (Paje 110) free dorsal joint in the o with two transverse rows of granules (l-'ig. 67). L. 3.5-4 mm 78. H. aequata Sr. 46. Head and pronotum somewhat glistening. Abdominal fifth free dorsal Joint in the d^ without granules. L. 3.5-4 ram 79. H. linearis iravh. 47. Antennal third joint distinctly shorter and smaller than the second... 77. rtntennal third joint as long as or longer than the second, rarely a little shorter than same (H. myrmecobia. palustris, divisa, basicornis). . .48. 48. Pronotum strongly transverse, 1^-2 times as broad as long 49. Pronotum more feebly transverse, about 1'/^ times as broad as long, rarely a little broader 72. 49. Middle-coxae broadly or rather broadly separated. Pronotum slightly roundly narrowed anteriorly, its hind corners almost obtuse-angylar. Abdomen somewhat tapering 50. Uiddle-coxae narrowly separated. Pronotum anteriorly most often scarce- ly narrower than posteriorly, its hind corners rounded off 51. 50. Antennal third joint distinctly longer than the second. Pronotum only a little narrower than elytra; 1. subg. Thamiaraea Thorns, (see under first series) 7. Antennal third joint joint not longer than the second: 15. subg. Alaobi a Thorns. -Species yellow-red. Pronotum considerably narrower than el- ytra. L. 3-3.5 mm 58. H. scapularis Sahib. 51. Elytra proportionately short, hardly longer than pronotum and scarcely croader than same: 17. subg. Xenota IKuls.- Head small. L. 2.5 mm... 61. K. myrmacobiu Kr. Elytra distinctly longer than pronotum 52. -179- (Pa^e 111) 52. Posterior margin of the sixth free dorsal abdominal joint in the ^ Xno- four-toothed (Fig. 56a; 56, 57. 56), rarely deeply cleft (Fij. 55). Third joint of the antennae not longer than tiie second (cf. IE. subg. Alaobia Thorns. ) : 14. subg. Tetropla f/.uls 61 . Abdominal sixth free dorsal joint in the o most often transversally truncated and the margin finely serrated or notched with one larger spine or tooth in each corner (Fig. 48, 50, 53 et al.), rarely with- out serrations, either slightly incurved (incognita) or angularly incised (Fig. 54 sodalis) . Third joint of the antennae longer than or as long as the second, exceptinally (xanthopus) a little shorter.. 53. 53. Abdominal first three free dorsal joints with very scattered punctation. Antennae as a rule rather long, however robust. (Species rather large. L. 3.5-4.5 mm.): 11. subg. Homalota s. str. Muls £4. Abdominal first three free dorsal Joints rather densely punctated (species smaller. L. 2.5-3.5 mm.) 60. 54. Posterior margin of sixth free dorsal joint of abdomen in the o less ser- rated or notched. Antennal next-last joints (8-10) scarcely broader than long. L. 3.5-4.5 mm 37, H. incognita Sharp, Posterior margin of sixth free dorsal joint of abdomen in the q finely serrate or notched. Antennal next-last joints broader tht-n long...E5. 55. Head and pronotum, also often elytra with distinct bronze reflection. . ,56. Head and pronotum black without bronze reflection £7. 56. Pronotum almost as broad as elytra; these very little longer than prono- tum. L. 3,5-4.5 mm 38, H. aquatllis Thoms. .180- (Page 111) 56. Pronotum distinctly narrower than elytra, which are '/5 longer than same. L. 3.5-4 mm 40. K. aquatica Thome. 57. Antennal first three Joints reddish-yellow, their distal joint, espe- cially in the o . rather lonj. L. 3.5-4 ram. (Fig. %?) 39. H. castanoptera Mannh. Antennae entirely black or brov-nish-black with brownish base. Antennal distal joint shorter 58. 58. Elytra brownish-yellow, a large, triangular, well bounded spot around scutellum also the hind corners black. L. 3.5 mm. ..43. U. trianjulum Kr. Elytra rather unicolorous brown or black-brown 5f. 59. Antennal second and third Joints equally long. Pronotum narrower than elytra. L. 3.5-4 mm 41. H. euryptera Steph. Antennal third joint longer than the second. Body rather evenly broad and pronotum almost as broad as elytra. L. 3.5 mm.. 42. H.ebenina V.uls. 6C. Posterior margin of elytra inside the outer corners very indistinctly or not Incurved: 12. subg. Atheta Muls 61. Posterior margin of elytra inside outer corners distinctly Jnourvel; 13. subJ.?»;ycota Muls "6. 61. Elytra brownish yellow, a large, triangular, rather sharply bounded spot around scutellum also the outer hind corners blark or murky, so that the brownish yellow color at middle is more sharply defined. 62. Elytra rather unicolorous brown, brownish black or black, or yellow- brown with a feeble, blackish-shaded spot around scutellum and on the hind corners ^4. •181- (Page 111) 62. Body evenly broad. Third Joint of antennae as long as or a little short- er than the second. L. 3-3.5 mm 44. H. xanthopus Ihoms. Body feebly fusiform. Third joint of antennae a little linger than the second 63. 63. Tenth joint of the antennae in the o not lon^jer than the ninth. Abdominal sixth free dorsal joint in the o is sharply serrated in posterior margin. L. 3 mm 45. H. trinotata Kr. Tenth joint of the antennae in the O^ longer than the ninth, and abdominal sixth free dorsal joint not serrated in the margin. L. P. 5-3 mm... 46. H. hybrida Sharp. 64. Abdomen black, its tip and half of the fifth free dorsal joint yellow- red. All antennal joints with long bristle-hairs. L. 3.5-4 mm.... 47. Y\. pilicornis Thorns. Abdomen entirely black or its tip brownish. Antennal outer joints with feeble and short bristle-hairs 65. 65. Klytra brown or yellow-brown, a little darher around scutellum and on hind corners. Legs reddish-yellow. L. 3-4 mm... 48. H. crasslcornis Fabr. Elytra darkly brown or black. Legs brownish yellow with a little darker hind femora. L. 3-4 mm 45. H. nitidicollis Fairm. (Page 112) 66. Antennae pitch-black with red-yellow base. Posterior margin of abdominal sixth free dorsal Joint in the di^wlth obtuse-angular incision (Fig. 54). L. 2.5-3 mm 50. H. sodalis Er. Antennae brownish-yellow with yellov base. Posterior margin of abdominal -182- (Page 112) sixth free dorsal joint in the S* finely serrate. L. 2.5-3 mm. 51. H. pallidicornis Ihoms, 67. Corner-teeth of sixth free dorsal joint of abdomen are in the O obtuse. Elytra brownish yellow, most often darkly shaded around scutellum and on the outer hind corners (Tetropola s. str. ivluls.) 68. Corner-teeth of sixth free dorsal joint of abdomen in the o acute and most often rather long, kilytra mostly unicolorous: black-brown, brown, or yellow-red (Alaobia f/^uls. nee. Thorns.) 7C. 68. Antennae brownish yellow with light yellow base, their next-last joints almost three times as broad as long. Abdominal sixth free dorsal joint in the O at middle with deep rounded incision and thereby divided into two bidentate lobes (Fig. 55). L. 2-2.5 mm. ..52. H. liturata Steph. Antennae pitch-brownish with reddish-yellow base, their next-last joints about twice as broad as long 69. 69. Pronotum rather densely punctated, somewhat glistening. L. 2.5-3 mm... .53. H. nigritula :>ra\^. Pronotum very densely punctated, dully glistening. L. 2,5 mm 54. K. boletophila Thoms. 7C. Body black or toio»nish black. Elytra brown, sometimes brownish-blaak 71, Body urownish-red or yellow-red; Head and the last two-three abdominal joints black or pitch-brown. L. 3 ram 53. H. subterranea Muls. 71. Head and pronotum glistening. L. 2.5 mm E5a. H. nidicola n. sp. and 55b. H. corioria Kr. Head and pronotum dull or dully liiinlng 71b. -183- (Pa^e 112) 71a.Pronotum anteriorly almost as broad as elytra. Antennal base brown or rust -red. L. 2.5-3 mm 55. H. ga-;atlne Eaudi, Pronotum posteriorly distinctly narrower than elytra. Antennal base yellow. L. 2.5 mm 56. li. basicornis Muls. 72. Head and pronotum strongly glistening, surface scarcely shagreened. 20. subg. Phllhygra Uuls. Body rather small and od even breadth. Abdominal sixth ventral joint in tht CJ produced, broadly rounded off at tip with long bristle-hairs (Fig. 62). L. 2-2.5 mm 71. K. palustris Kiesw. Head and pronotum dull or dully glistening, in surface distinctly sha- greened (cf. 23. subg. Hy^^roecia '/.uls. ) ; subg. Traumoecia I'.ul £. . . .73. 73. Pronotum scarcely iVi times as broad as long 74. Pronotum fully 1'/^ times, or nearly 1? times as broad as long 75, 74. Distal Joint of antennae as long as the two preceding joints together. L. 2.5-3 72. n. angusticollis Thorns. Distal joint of antennae elongated, as long as the preceding three joints together. L. 2.5-3 mm 73. H. ravllla Thorns. 75. Pronotum with ratner dense granulose punctatlon. L. 2.5-3 mm 74. !i. picipes Thorns. Pronotum very densely and finely punctated 76. 76. Abdominal first three free dorsal Joints distinctly and densely punc- tated. Distal joint of antennae longer than the preceding two joints together. L. 2.5-3 ram 75. H. divisa Mark. Abdominal first three free dorsal joints with fine and rather isolated ■184. (Page 112) punctation. Cistal joint of antennae not longer than the two pre- cedintj joints together. L. 2.5-:^ mm 76. H. ni;;ricornis Thorns. 77. Antennal outer joints (5-lC) from the fifth suddenly and very strongly transverse, approximately 2i times as broad as long: subg. 3eritaxa Muls 78. Antennae more gradually thickened distally 79. 78. Head broad, very little narrower than pronotura, legs reddish yellow. L. 2,5 mm 59. H. testaceipes Heer. Head considerably narrower than pronotum, narrowing behind eyes. Legs orownish yellow. L. 2.5 ram 60. H. dilaticornis Kr. 79. Elytra proportionately short, hardly longer than pronotum: 17. subg. Xenota Muls. - Head very small, much narrower than pronotum; this as broad as elytra. L. 2.5 ram €1. H. myrmecobia Kr. £.lytra longer than pronotum 8C. (Page 113) 80. Abdomen to the tip densely or very densely punctated 81. Abdominal first three free dorsal joints with rather dense or scattered punctation, the following with isolated punctation or smooth (species small or very small) : 19. subg. f/.icrodota Muls 82. 81. Abdominal fifth froo dorsal joint as long as the fourth: 16. eubg. Pochmonota Thorns. - Body proportionately broad. L. Z mm 6 2. H. clancula Er. Abdominal fifth free dorsal joint longer than the fourth: subg. Eralica Muls. (see also u. fifth series 120). Body small. L. 1.5-2 mm ...107. H. vilis Er. -185- (Page 113) 82. Body predominantly reddish-yellow, the head and next-last two-three joints of abdomen black. L. 1.5 mm 63. H. palleola Er. Body black or brownish black 83. 83. Pronotum v»ith rather isolated or scattered, occasionally indistinct punctation 84. Pronotum with denser punctation 86. 84. Posterior margin of sixth free dorsal joint of abdomen in the o pro- portionately robustly serrated. Body deeply black, legs pitch-brown- ish. L. 1.5-1.7 mm 64. 11. indubia Sharp. Posterior margin of sixth free abdominal joint in the o not serrated or notched 85. 85. 21ytra especially finely (however sufficiently magnified) distinctly and rather densely punctated. L. 1.5-l.B mm 69. H. liliputana Bris. Elytra extremely finely and extremely sparsely punctated, together with pronotum strongly glistening; this about as broad as elytra. L. 1.3 mm 70. H. atomaria Kr. - or pronotum narrower than elytra. L. 1 mm....7Ga. H. perexigua Sharp. 86. Pronotum with distinct scabrous or granulose punctation; legs brownish- yellow, most often with darker femora. L. 1.8-2 mm.: 65. FI. subtills Scribj Pronotum especially finely and not scrabrously punctated 87. 87. Legs unlcolorous light brownish-yellow. L. l.d-^ ram. ..66. li. amicula Steph. Legs brownish-yellow with darker femora, sometimes entirely pitch-brown. (species very small) 88. 08. Pronotum almost as broad as elytra. L. 1.5 mm. ..67. H. mortuorum Thome. -186- (Page 113) 88. Pronotum narrower than elytra (smallest species of the genus). L. C,7 mm 68. H. in-juinula Er. Third Series. 89. Head broadly square, posteriorly evenly truncated, and finely marginated, its hind corners rectangular and the sides straight (Fig. 73):: 31. sub-jenus Dadobia Thorns.- Body flat and of even breadth. L. 1.5-2 mm. 94. H. immersa Er. Head posteriorly not marginated, its hind corners rounded off 90. 90. Abdominal fifth free dorsal joint longer than the fourth, the sixth in the ^ with an upturned sharp side-margin: 26. subg. Bessobla Thorns. :91. Abdominal fifth frea dorsal Joint not longer than the fourth; the sixth in the o i^'Ot with upturned margins on sides 94. 91. Abdominal sixth free dorsal joint posteriorly in the O slightly tncurved or almost evenly truncated, dorsal side without pronounced sculp- ture 92. Abdominal sixth free dorsal joint in the u dorsally with several long- itudinal folds or small bosses; posterior margin with rectangular inci sion 93. 92. Pronotum scarcely narrowing posteriorly. Posterior margin of abdominal sixth free dorsal joint in the 5^ finely, upturned rnQr^ined, at middle feebly anourved (Fig. 69). L. 3-3.5 mm 85. H. occulta Er. Pronotum distinctly narrowing posteriorly. Posterior margin of abdom- inal sixth free dorsal joint in tht O not marginated. L. 2.5-3 mm. 86. H. fun,:ivora Thoms. -187. (Page 113) 93. Pronotum li times as broad as long. Abdominal sixth free dorsal Joint in the O^ on dorsal side with several longitudinal folds (Fi^. 7C). L. 3.5-4 mm 87, H. monticola Thorns. Pronotum 1 i/s times as broad as long. Abdominal sixth free dorsal joint in the o with a transversal row of small bosses. L. 2.5-3 mm 88. H. excellens Kr. 94. Head proportionately large, as broad as, or only a little narrower than pronotum. (Species small or rather small: L. 2-3.5 mm.; cf. Thectura (Homalota) cuspidata. which hov^ever on account of 4-Jointed fore- and middle-tarsi belong to division Bolitocharina; 95. Head proportionately small and considerably narrower than pronotum. (Species larger. L. 4-5 mm.) 97. (Page 114) 95. Abdomen finely or very finely punctated: 25. subg, Anopleta Muls. -Pro- notum and elytra densely punctated. Pronotum in the o at middle with a broad longitudinal groove or foves. L. 2-2.5 mm.: 84. H.corvina Thorns. Abdomen proportionately coarsely punctated 96. 96. Temples and genae marginated. Middle-coxae rather broadly separated: 29. subg. Alianta Ihoms.- Pronotum much narrower than elytra. Abdomen with granulated punctation. L. 3-3.5 ram 92. H. incana Er. Temples and genae not marginated. tilddle-coxae narrowly separated: 30. subg. Pachnida Muls. - Pronotum anteriorly about as broad as elytra. Abdomen anteriorly with robust, but not granulate punctation. L. 2-2.5 mm 93. H. nigella Er. -188- (Page 114) 57. First joint of hind tarsi elongate, lon^jer than the second. Middle- coxae well separated. Temples and ^enae entirely and sharply mar- ginated: 27. subg. Ptychandra Janglb. - Elytra along the suture of the a with a longitudinal fold. L. 4-5 mm 89. K. hepatica Sr. First joint of hind tarsi rather short, not longer than the second. Middle-coxae narrowly separated. Temples only marginated posteriorly: 28. subg. Plataraea Thorns 98. 98. Pronotum It times as broad as long. Abdominal sixth free dorsal joint in the c quadra-dentate , the fifth most often v.ith a fine carina at middle posteriorly (Fig. 72). L. 4-5 mm 90. H. brunnea Fabr. Pronotum 1^ times as troad as long. Abdominal fifth and sixth free dorr- sal joints in trie o^without pronounced sex-characters. L. 4-4.5 mm... 91. H. melanocephala Heer. Forth Series. 99. Elytra longer than ptonotum IGO. Elytra short, shorter than pronotum or at most as long as this 1C5. 100. Abdomen to the lip densely punctated. Head rounded triangularly, broad- est posteriorly (Fig. 74); 3f . subg. Amischa Thorns. (Posterior mar- gin of abdominal sixth free dorsal joint in the 6, II. longula Hear. -193- (Page 116) 1S2. Antennae slender, but not filiform, distinctly thickened distally. Ab- dominal fifth free dorsal joint Ij times as long as the f ourth. . . . 123. 123. first joint of hind tarsi scarcely longer than the second. Temples and genae marg inated 1 24 . First joint of hind tarsi distinctly lonr;er than the second. Temples and ^enae not marginated (except in K. Languida) 135. 124. Middle-coxae somewhat separated. Abdominal next-last ventral joints in the o very elongate and curved upwardly, at tip transversally trun- cated: 42. subg. Pelur:;a Muls. - Body rather broad and somewhat flat- ly depressed} Head broad, very little narrower than pronotura. L. 4- 4.5 mm 119. H. luridipennis Mannh. Middle-coxae scarcely separated. Abdominal next-last ventral joints in the O^ somewhat elongate, but little or not upwardly curved: 41. subg. Lie tax/a Mul s 1 25 . 125. Abdomen densely and finely punctated to the tip 126. Abdominal fourth and fifth free dorsal joints sparsely punctated... 127. 126. Antennae dark with yellow base, their third joint shorter than the sec- ond. L. 2.5 mm 108. 11. meridlonalis "uls. Antennae entirely reddish-yellow, their second and third joints of same length. L. 2.5-3 mm 109. H. marina Muls. 127. Pronotum If times as broad as lon-j 128. Pronotum at most 1^/^ times as broad as lonj, more often as long as broad 1 3C . 128. Antennal third joint shorter tnan the second. L. 2-2.5 mm 110. !U ^emina Er. -194- (Page 116) 128. Antennal third joint as long as the second. (Species larger) 129. 129. Pronotum a little narrower than elytra. Antennal base and the legs brownish jellovi. L. 2.5-3 mm '. , . 111. H. AuLei Bris. Pronotum as broad as elytra or broader. Antennal base and legs brown- ish, femora most often dark. L. 3r3.5 mm. ..112. H. islandica Kr. 130. Elytra hardly longer than pronotum. L. 3.5-4 mm.: 113. H. clavipes Sharp. Elytra distinctly longer than pronotum 131. 131. Antennal third joint as long as, or longer than the second 132. Antennal third joint distinctly shorter than the second 134. 132. Pronotum 1 longer than pronotum and somewhat more distinctly punctated than same; abdomen distinctly tapering, almost impunctate and polished. L. 4-5 am, (Page 119) In the 3^ the suture of elytra anteriorly as a rule with cariniform el- evation suddenly declining toward the scutellum; abdominal sixth free dor- sal joint as a rule with a robust carina at middle, posterior margin at middle triangularly produced and emarginate in tip, on each side of middle deeply incised, whereby an acute inwardly directed tooth is formed at each corner (Fig. 4C). Distributed in Middle and North Europe. There the larva of the destruc- tive and large carpenter moth Cossus ligniperda has attacked poplars, oak, elm and other deciduous trees, there most often H. cinnamomea can be found either in the larvae tunnels or by the outflowing sap, and usually quite numerously. In this country it is local, but otherwise not rare. 3. H. hospita Mark. (Mark. :;erm. Zeitschr. V, 216; Kraatz Ins. E. II, 250; Thorns. Skand. :ol, III. 60; Sharp Fev. Brit. Hom. 217; Muls. et Fey Brevip. 1873, 154; 3anglb. Kaf. M. II, 127). It resembles cinnamomea, but is considerably smaller and more dully glistening, and especially easily separated from same by the punctation of abdomen. Pitch-brown or reddish-brown, finely haired, feebly or dully glistening; -200- (Page 119) pronotal sides, elytra, tip of abdomen and posterior margins of its joints more or less brownish-yellow; antennal base and legs yellow. The forebody in surface extremely finely shagreened and due thereto of dull shine, a little more distinctly and densely punctated than in cin- namomea. Antennae more slender than in this species, pronotum less convex, most often distinctly grooved in middle-line. Abdomen feebly shagreened in surface, its first three free dorsal joints rather robust and dense, the two following finely and very sparsely punctated. L. 4 mm. In the d*^ the sixth free dorsal joint of abdomen at middle with a small, smooth, posteriorly obtuse boss or carina; its posterior margin at middle angularly produced with bidentate tip, and with a more or less developed tooth at each side. Distributed throughout Middle and North Europe, but much rarer than the preceding species; in this country only found in a few places in the vicini- ty of Vejle and Faaborg, in -^ossus gnawings of oak trunks, together with cinnamomea (L. Andersen, author). May also be found with Lasius fuliglnosus in hollow trees, mainly where these also have been attacked by the '^ossus larvae (Sharp). 2. Subgenus Notothecta Thome. 6, H. flavipes Gravh. (iravh. Uon. 161; Erichs. Jen. Spec. Staph. 124; Kraalz Jns. L, II, 263; Thorns. Skand. Col. Ill, 1C7; Sharp Fev. brit. Horn. 2J>2>; Muls. et Rey Bre'vip. 1873, 137; ianglb. Kaf. M. II, 136). (Pago 120) 5y form of body, color and greasy gloss, also by the compact outer joints of the antennae, and by the prominent hind corners of pronotum, this and the -201- (Page 1,?0) following species attain not a little likeness with species.of the genus Thiasophilas, with which their mode of living in the ant nest also is mu- tual. Fusiform, rather broad; black or pitch-black, with rather strong greasy shine, finely haired; elytra reddish-brown; abdominal tip, antennal base, also the legs reddish-yellow. The head is rather broad, however much narrower than pronotum, convex, almost impunctate, polished; antennae slender and rather long, their third joint longer than the second, the outer joints (5-10) almost of equal length and equal breadth, feebly transverse, closely compact, distal joint as long as the three preceding joints together. Pronotum scarcely narrower than el- ytra, twice as broad as long, anteriorly roundly narrowing with deflected fore-corners and prominent hind corners, posterior margin inside these dis- tinctlji wavedt'dorsum slightly convex, rather finely and densely punctated, sometimes with a feeble transverse impression before scutellum. Elytra 'fs longer than pronotum, with dense and rather fine, scabrous punctation, their posterior margin inside the outer corners distinctly waved; abdomen rather strongly tapering, very glistening, somewhat long-haired with many side- bristles, its foremost dorsal Joint with fine and isolated punctation, the following almost smooth. L. 3.5-4 mm. In the 3^ the abdominal sixth free dorcal Joint at middle obtusely usvedi . Distributed everwhere and often numerous in tlie mounds with Formica rufa and pratensis. It is tolerated by the ants and probably assist these In de- vouring dead organic maltfir. -202- *)meaning one wave curved Inward- Incurved, Translaror. (Page 120) 4. H. confusa Mark. Mark. Jerm. Zeitsch. V, 21£; Kraatz Ins. D. II, 264; Thorns. Skand. IJol. Ill, 107; Sharp Bev. Brit. Horn. 234; Muls. et Fey Brevip. 1873, 140; 3anglb. Kaf. ivl. II, 135.). Smaller and often someiwhat lighter of color than f lavlpes, which it elsewhere very much resembles both in form and punctation. Is however easi- ly separated from this mainly h^, that antennae are shorter and more ro- bust, their middle and next-last joints are distinctly transverse, and that abdomen anteriorly is somewhat more densely punctated. L. 3 ram. It.livfis with Lasius fuli:;inosus. is distributed throughout North and Middle Europe, everywhere rare; heretofore only found in few placed in this conatj-y (North Sjaelland: Ruderhegn, Conse); but however most likely dis- tributed with the host ant. 3. Subgenus Lyprocorrhe Thorns. 5. H. anceps Erichs. (Erlchs. Kaf. Uk. Br. I, 335; ien. Spec. Staph. 12£; Kraatz Ins. E. II, 264; Thorns. Skand. Col. Ill, 108; Sharp Pev. Brit. Horn. 232; Muls. et Fey Bre'vip. 1873, 144; CJanglb. Kaf. M. II. 135). (Page 121) It is closely related to the two preceding; species: Temples and genae immarginate, outer joints of the antennae (4-lG) closely oompact, middle- coxae rather broadly separated, and like these lives in thu nnt hjlls. It is however easily separated from both of these oy tnu feeble, dull jloss of the body, and the entire medial groove of pronotum etc. Black or brownish-black, dully shining, very finely huirod; abdominal tip brownish-red; entennae pitch colored with lighter base; legs yellow or brownish yellow. -203- (Page 121) The head rnther broad, yet narrower than pronotum, convex, very finely and densely punctated, glistenin^i; antennae rather thin, scarcely thicken- ed distally, their third joint about as long as the second, the middle ones fully as long as broad, the next-last feebly transverse, distal joint more than twice as long as the tenth, tapering. Pronotum scarcely twice as broad as lonj, posteriorly almost as broad as elytra, anteriorly feebly rounded narrowing, its hind corners almost rectangular and posterior margin Inside them feebly cucvad , dorsum feebly convex, rather finely, very densely punc- tated, almost na^ed, with a sharp entire groove in medial line, the sides without distinct bristles; elytra '/j longer than pronotum, with particular- ly dense and rather fine scabrous punctation, their posterior margin inside the outer corners distinctly curvea ; abdomen tapering, all over with very fine, anteriorly dense, posteriorly more isolated punctation, somewhat long and sparse hair vestiture. L. 6 mm. In the O the abdominal next-last ventral jOint soraewhat elongate and more narrowing than in the p , It lives in the mound with Formica rufa and its races, pratensis and truncicola , and is not rare; occasionally also found with Form. ex:becta and Lacius f uli-.-inosu3. Distributed in Middle and I>'orth Europe. In Sweden is found (teste Thomson) in bumblebees' nests a very closely allied species, H. nidorum Thorns, .which is light Lrov.n and without groove on pronotum. Possibly this species or form may bo found here also, in humble- bee^' nests. 4. Subgenus Coprothassa Thoms. 6. II. sordida I*arsh. -204- (Page 121) Marsh. Ent. Brit. 514; Janglb. Kaf. U. II, 154.- llvidlpennls Mannh. Brach. 7C ; Erichs. CJen. Spec. Staph. 129; Kraatz Ins. T. II, 311. — melanaria Thorns. Skand. Gol. Ill, 34; Sharp Rev. Brit, Koq. 254; Muls. et Bey Brevip. 1873, 179.) Among closely allied species with tapei ing abdomen sordida is especial- ly recognized by the dense punctation of the body, dull dorsum and the light color of elytra. - In form and color it somewhat resembles Oxypoda lividi- peonis Mannh., but is inter alia somewhat smaller than that species. Black, dully glistening, very finely, rather densely gray-haired; elytra light brownish-yellow with a dark, triangular spot around scutellum; tip (Page 122) of abdomen yellowish-brown; antennae pitch-brown with reddish-brown base; the legs light brownish-yellow. Head broad, but narrower than pronotum, finely and densely punctated; antennae rather long and robust, their third joint longer than the second, the fourth distinctly transverse, the following about of e^ual breadth, but the middle ones a little longer than the next-last, which hardly are trans- verse, distal joint longer th:.n the two preceding joints together, longish tapering. Pronotum posteriorly as broad as elytra, ih times as broad as long, anteriorly feebly roundly narrowing with rounded obtuse hind corners, pos- terior margin inside tnese slightly undate, dorsum convex, finely ani very iensely punctated, sometimes with feeble medial groove, the sldas without outstanding bristle-hwirs. lilytra a little longer than pronotum. finely and very densely punctated, their posterior margin inside outer corners distinct- ly undate; abdomen rather strongly tapering, all over finely, anteriorly dens-e- • -205- (Paje 122) -ly, posteriorly less densely punctated, its sides and tip with lon^^ brist- les. Middle-tibiae with one outstanding- bristle at middle. L. 3.5-4 Dun. In the ^ the abdominal next-last ventral Joint somewhat elongate and rounded off at tip; in the O distinctly undate. Distributed and all over rather common under rotting plant matter, sometimes numerous in compost. 7. H. melanaria Mannh. (Mannh. Brach. 70; Kraatz Ins. E, II, 312; Janglb. Kaf. M. II, 154. - testudinea Erichs. ien. Spec. Staph. 131; Thorns. Skand. Col. Ill, 35; Sharp Pev. Brit. Horn. 255; Muls. et P.ey Brevip. 1873, 183.) Shorter, darker and more glistening tnan sordida, from which it is further- more separated by finer and shorter antennae, of which the fourth Joint is as long as broad. Black, glistening, finely haired; elytra brownish-yelloNi' or yellow-brown with black sides and an extensive, triangular spot around scutellum; legs brownish-yellow with darker femora. The head broad and short, rather densely and finely punctated; anten- nae rather fine, scarcely thickened distally, their third Joint a little longer than the second, the fourth as long as broad, the middle ones as long as broad, and the next-last ones feebly transverse, distal joint as long as the two preceding Joints together. Pronotum posteriorly as broad as or broader than elytra, anteriorly foebly roundly narrowing, 1; times as broad as long, convex, rather densely and sharply punctated, without out- standing side-bristles; elytra a little longer than pronotum, densely and strongly, somewhat scabrously punctated, their posterior margin inside the outer corners flatly undate. Abdomen strongly tapering with many outstand- -206- (Page 123) ing side-bristles, its foremost dorsal joints with fine and dense, the hind- most with more scatterd punctation. Middle- and hind-tibiae each with a robust bristle at middle. L. 3 mm. In the "$ the abdominal next-last ventral joint somewhat elongate and rounded off, in the p feebly emarginate. Distributed, but rarer than the preceding species; at manure and rot- ting plant matter. 8. H. consanguinea i^pp. (Eppelsh. Stett. Bnt. Ztg. 1895, 365; Janglb. Kaf. \k. II, 155.) In relation to the tv.o preceding species this is especially recognized by the color of pronotum and the short elytra, also by, that the fourth antennal joint is longer than broad. Black or pitch-brown, greasy shine, finely haired; pronotal sides most often reddish brown; elytra and abdominal tip reddish-brown; legs reddish yellow. Head rather large, finely, but not densely punctated; antennae rather long and robust, their third joint longer than the second, the fourth loag- er than broad, the following (5-10) of e^ual breadth and almost of equal length, scarcely transverse, compact, distal joint tapering, ar long as the two next-last joints together. Pronotum behind middle as broad as elytra, 1* times as broad as long, anteriorly only narrowing a trifle more than pos- teriorly, sides rather smoothly rounded, hind corners broadly rounded off, dorsum slightly convex, very finely and rather densely punctated, without outstanding side-bristles. Elytra snort, scarcely longer than pronotum, very -207- (Page 123) finely and densely punctated, their posterior margin inside the outer cor- ners flatly undate; abdomen less strongly tapering than in the preceding tv.0 species , its foremost joints vt^ry finely and rather densely punctated, the last with very scattered punctation; the tibiae without outstanding brisxles. L. 3.5-4 mm. In the CTthe next-last ventral joint of abaomen is somewhat elongate and broadly rounded off. It is known from South England and south-eastern Middle Europe; in this country very rare and local, heretofore only occasionally found in the vi- cinity of HlllerxJd, in the fall by decaying fungi, in the spring under damp leaves at woodland ponds (author). 5. Subgenus Colpodota I.'uls. et Pey. 9. H. pyj^maea Jravh. (iravh. hiicr. 86; Kraatz Ins. D. II, 314; Sharp Fev. Brit. Hom. 857; I^uls. et Rey Bre'vip. 1873, 189; Janglb. Kaf. U. II, 155. - obfuscats Jravh. Micr. 87; Thorns. Skand. Col. Ill, 3c. - aterrima var. Erichs. Jen. Spec. Staph. 133.) A rather small species; within the subgenus especially identified by the color of the antennae, and the somewhat elongate first joint of hind tarsi. (Page 124) In form, color and vestjture is much like an Oxypoda of sub^'enus Fodoxya, but Its four-jointed fore-tersi, and the less elongate, shorter first joint of hind-tarsi will easily prevent any confusion. Black or blackish-brown, finely and densely gray-haired, silky glist- eninj; Pronotel sides occasionally brownish; elytra lighter or darker brown; tip of abdomen and posterior margins oV its joints yellow-brown; antennae -208- (Page 124) pitch-black or reddish-brown with brov.nish yellow base; legs yellow or brownish yellow. Forebody very finely and densely punctated; Head broad; antennae rath- er long, slightly thickened distally, their second and third Joint some- what elongate, of equal length, the fourth distinctly longer than broad, the middle ones about as broad as long, the next-last feebly transverse, distal joint as long as the two preceding Joints together. Pronotum pos- teriorly as broad as elytra, scarcely 1^ times as broad as long, somewhat narrowing anteriorly, the sides feebly rounded, without distinct bristles, dorsum slightly convex, without impressions. Elytra a little longer than pronotum, their posterior margin inside the outer corners very flatly un- date; abdomen longish tapering, finely and smoothly silky haired glisten- ing, its fifth free dorsal joint much longer than the foUr.th; the fore- most dorsal joints very finely and densely punctated, the hindmost with more scattered punctatlon, at sides with long bristle-hairs. The middle and hindmost tibiae with only one short fine bristle at middle; first Joint of hind tarsi somewhat elongate, 1^ times as long as the second. L. 2.5-3 mm. Common everywhere on damp or semi-damp forest or meadow ground; often numerous in alluvium. IC. H. aterrima Jravh. (Jravh. Micr. 83; Erichs. ien. Spec. Staph. 133; Kraatz Ins. D. II, 313; Thorns. Skand. Col. Ill, 36; Sharp Fev. Drit. Horn. 256; Muls. et Ray Br^vip. 1873, 196; ianglb. Kaf. M. II, 156). Very closely allied to p.v;;maea, about of same length as this, tut as a rule a little broader, darker of color, v.ith entirely black antennae or -205- (Page 124) or these brownish at the base only; the outstanding bristles of the middle and hind tibiae more distinct, and the first joint of hind tarsi shorter. Black, finely haired, with feeble silky ^jloss; elytra sometimes brov.n- ish; legs brownish yellow with darker femora. Forebody very finely and densely punctated; head rounded, narrower than pronotura; antennae often more slender than in py-^maea, very feebly thick- ened distally, their second and third joints of same lenj^th, the fourth longer than broad, the miadle and next-last ones about as lonjj as broad, distal joint as long as the two precedinjj joints together. Pronotum pos- teriorly as Droad as elytra, more than 1^ times as broad as long, somewhat roundly narrowing anteriorly, smoothly convex, posterior margin at each side slightly undate, sides without distinct bristles; elytra a little lor\2- (Page 125) er than pronotum, their posterior margin inside the outer corners scarce- ly undate; abdomen strongly tapering, finely silky haired, their foremost joints very finely and densely, the next-last less densely punctated. Sides and tip with numerous bristles, the middle and hind tibiae each with a stiff, outstanding bristle at miadle. First joint of hind tarsi short, only a little longer than the second. L. 2.5-:J mm. Common everywhere on damp or semi-damp ground under the plant cover, also at manure and in compost. 11. H. parva Sahib. (SahlL. Ins. Fenn. I, iac ; ;anglb. Kaf. W. II, 156. - piloBJventrts Thorns. Ufv. Vet. Ac. Forh. 1856, 106; Skand Col. Ill, 38; Sharp Rev. Brit. Horn. - stercorlaria Kraat^ Ins. D. TI, 3l£; Muls. et Pey Bre'vlp. ie73, 2C0). 210- (Patje 125) From aterrima, which this species in form and color is most like, it is especially separated by shorter antennae, of which the third Joint is distinctly shorter than the second, body less finely punctated, and pro- notum often with a longitudinal middle-groove posteriorly; as a rule it is also considerably smaller than aterrima. Elac'K, finely haired, somewhat glistening; elytra often brownish; legs brownish-yellow with darker femora. Head rounded, considerably narrower than- pronotum and together with same finely and densely punctated; antennae rather short, feebly thickened distally, their third joint ^distinctly shorter and more conical than the second, the fourth small, as long as broad, the middle and next-last ones feebly transverse, distal Joint as long as the two preceding Joints togeth- er. Pronotum is posteriorly as broad as elytra, amply 1^ times as broad as long, anteriorly narrowing with smoothly rounded sides, without distinct erect side-bristles, slightly convex, with or without longitudinal groove in middle-line posteriorly; elytra 4 longer than pronotum, more distinct- ly and densely punctated than this, punctation feebly scabrous; abdomen strongly tapering, with fine, evenly distributed and somewhat long, but not dense hair vestiture, its tip and sides stroncly bristle-haired, the fore- most dorsal joints distinctly and densely, the hindmost less densely punc- tated, the fifth free joint nearly twice as long as the fourth. Middle and hind tibiae are somewhat thickened at middle and here bears an outstanding, robust bristle. L. 2.5 mm. In manure and at decaying plant matter, distributed and not rare. -211- (Pa33 125) Horn, muscorum Brl s. . which (teste Sharp) only differs from parva Sahib. mainly by a little longer antennae, longer pronotum without groove, and by, that the bristles on tibiae are indistinct, is most often considered as a variety of this species. It is common in England, distributed in Middle Europe and most probably also occurring in this country. (Page 126) 6. Subgenus Solenia f-iuls. et Pey. 12. 'I. subsinuata Er. (Erichs. CJen.. Spec. Staph. 126; Kraatz Ins. D. II, 316; Sharp Bev. Brit. Horn. 262; Muls. et Rey Brevip. 1873, 264; Janglb. Kaf. M. II, 155.- fimetaria Thorns. Skand. Col. Ill, 37). Amomg closely allied species especially identifiable by a peculiarly small head, grooved pronotum and feebly tapering abdomen. Black, moderate gloss, finely haired; elytra and sometimes also the tip of abdomen pitch-brownish; antennae black or pitch-brown; legs brownish yel- low. Head round, peculiarly small, finely and rather densely punctated; an- tennae feebly thickened toward tip, their second end third Joints of same length, the fourth smal] , as long as broad, tiie middle and next-last ones feebly increasing, slightly transverse, distal Joint as long as the two preceding joints together. Pronotum is posteriorly about as troad us el- ytra, 1? times as oroad as lonj, anteriorly narrowing with slightly round- ed sides without longer bristles, dorsum finely and densely punctated, with a small transverse fovea posteriorly before scutellum, and beginning from there sometimes a feeble longitudinal groove at raladle-line. Zlytra are 4 -212- (Page 126) longer than pronotum, more distinctly and densely punctated than this, their posterior margin inside the outer corners distinctly undate. Abdomen is less tapering than in the closest allied preceding species, rather finely and anteriorly more densely punctated than the next-last Joints, its sides and tip bristle-haired. Ihe middle-tibiae with a short, outstanding bristle on middle, and the hindmost tibiae right beneath the knee v4n elytra, iVi times as broad as long, with smoothly rounded sides, rounded off hind corners and a few fine side-bristles, slightly convex, punctation very fine somewhat isolated, occasionally feebly grooved in middle-line or at least with a slight impression before scutellum; elytra f ,'3 longer than pronotum, as finely, but more densely punctated than this. Abdomen dis- tinctly, but not strongly tapering, its first three free dorsal Joints "^^rj finely and rather densely punctated, the following with mor longer than pronotum, somewhat more distinctly ana densely punctated than this; abdomen tapering, its first three free dor- sal joints with fine and rather isolated punctation, the following sparse- ly punctated, sides with numerous bristles. Middle and hind tibiae each (Page 137) with two outstanding bristles, of v.hich the nethermost - on middle tibiae placed at middle, on hind tibiae Deneath middle - is longest and most robust. L. :i mm. In the ^ the next-last ventral joint of abdomen rounded off at tip, in the p distinctly incurved. -230- (Page 137) At manure, decaying plants, under leaves and at carrion etc.; dis- tributed all over and not rare. 28. H. ni.'^ripes Thorns. (Thorns. Ofv. Vet. Ac. Fo'rh. 1B58, 102; Skand. Col. Ill, 94; 3an(jlb. Kaf. M. II, 164. - villosula Kraatz Ins. I. II, 30E; Sharp Rev. Brit. Horn. 249). FecOjjnized by color of the body and sex-characters of the o , Feebly fusiform; coal-black, rather finely black-haired; forebody feebly, abdomen more strongly glistening; legs black or brownish black with brov-n-red knees and tarsi. Forebody very finely shagreened in surface and therefore feebly or dully shining; the head rather small, rounded, with fine e-nd scattered granulate punctation; antennae fully as long as head and pronotum togeth- er, slightly thickened distally, distinctly bristle-haired, their second and third joints of same length, the fourth as long as broad, the middle ones feebly, the next-last more distinctly, but not strongly transverse, distal joint tapering, as long as the two preceding joints together. Pronotum is somewhat narrower than elytra, about \\ times as broad as long, anteriorly more tapering than posteriorly, with slightly rounded sides, on which the outstanding bristles are long and distinct; dorsum rather con- vex, with rather robust, but not dense granulate punctation and with a small, either foeble or merely suggested transverse fovea posteriorly before the scutellum. Elytra somewhat longer than pronotum, more densely and robustly granulated punctated than this; abdomen tapering posteriorly, its first three free aorsal joints with distinct and rather isolated punc- • 231- (Pa-e 137) -tation, the two following with scetttered punctation; sides and tip with robust bristles. Middle and hind tibiae each v. ith two outstanding bristle?, of which the nethermost is longest and most robust. L. 2.5 mm. In the a the middle of the sixth free dorsal joint is somewhat elon- jate and at tip transversally truncated, contrariwise its sides run out into a fine, acute tooth or thorn of same length as the middle part, and separated from this by a deep, sharp incision. In the o the same joint is at middle feebly incurved ana with a small, short tooth at each side. (Fig. 44 and 44a). At manure, plant waste and like matter, also under leaves on damp ground and at outflowing trea-sap; distributed but rather rare. North and Middle Europe. (Page 1^8) 29. H. laevana Muls. (Muls. et Pey OpuscEnt. I, 185,2, 3S; Erevip. 1873, 423; Kraatz Ins. D. II, 306; Sharp Pov. Brit. Horn. 246; Thorns. Opusc. F.nt. II, 187C, 134; 3anglb. Kaf. M. II, 164). Compared with atramentaria, to which laevana in form and size js close- ly allied, it is especially identified by more robust antennae, lighter color of elytra and lege, and by denser more robust punctation of prono- tum. Feebly fusiform or of rather uniform oreadth; black, glistening, finei- ly haired; head and pronotum sometimes with feeble bronze reflection; el- ytra brown or yellowish-brown *ith a black, occa8ionry rir.j, scattered granulate punctation; antennae slender, bristle-haired, finer than in picipennjg, scarcely thickened distally, their first joint thick- ened claviforn, the second and third of same length, the fourth like the '-238- (P8se 141) middls ones a little longer than broad, the next-last ones scarcely trans- verse, distal Joint about as 1 on^ as the two preceding joints together, tapering. Pronotum nearly as broad as elytra, li times as broad as long, the sides slightly and rather smoothly rounded and with a few outstanding bristles ; dorsum rather convex, with fine and dense granulose punctation and with a feeble transverse fovea posteriorly before scntellura, some- times slightly grooved at middle-line; elytra 1 ■^./j' times as long as prono- (Page 142) turn, with fine and dense, feebly scabrous punctation; abdomen rather strong- ly tapering, punctation same as in plcipennis. Middle and hind tibiae each with two outstanding bristles, of which the nethermost is longest. I. 2.5 -3 ram. In the 5^ the sixth free dorsal joint of abdomen is about of same form as in the preceding species. (Thorns., Sharp.). It is found in Skaane and England at outflowing tree-sap, manure, car- rion and fungi, and could possibly also be found in this country. 35. H. intermedia Thorns. (Thorns. Ofv. Vet. Ac. Forh. 1852, 145; Skand. Col. Ill, 95; Kraatz Ins. D. II, 301; Sharp Rev. Erit. Hom. 242; Muls. et Rey Bre'vip. 1873, 416; Sanglb. Kaf. M. II, 167). Identifiable especially by the color of elytra and fine punctation of the body. Black, finely haired; forebody feebly glistening or dull, abdomen glistening; pronotum sometimes brov-nish; elytra yellow, often darkly shaded around scut-dllum and on the sides; antennae pitch-black, at base brownish- ■239- (Page 142) red, or reddish-brown with lighter base; legs reddish yellov.. The body fusiform; head, pronotum and elytra finely shagreened in tur- f£Ct and therefore with dull shine.; the head rather broad, however narrov.- er than pronotum, very finely or indistinctly punctated; antennae rather long and robust, but scarcely thickened distally, their third joint longer than toe second, the fourth longer than broad, the middle and next-last ones about as broad as long, aistil joint as long as the two preceding joints together, longish tapering. Pronotum somewhat narrower than elytra, l^/S times as broad as long, its sides feebly rounded or posteriorly almost straight, with a few outstanding bristle-hairs, dorsum slightly convex, densely and very finely granulose punctation, most often with a feeble, narrow longitudinal impression in middle-line posteriorly; elytra j long- er than pronotum, very finely and densely punctated; abdomen distinctly tapering, its first three dorsal joints very finely and rather densely punc- tated, the fourth less densely, the fifth with scattered punctation, the sides anteriorly sparsely and finely, toward abdominal tip more robustly bristle-haired. The middle-tibiae at middle with a short, but distinct outstanding bristle, the hind tibiae with none. L. 3-4 mm. In the "^Tthe sixth ventral joint of abdomen somewhat longer and nar- rower than in the O . At manure, rotten fungi and under moist leaves; distibuted in Europe, but very rare in this country. (Aalborg, Hiller/d, Frederiksvaerk et al.). 36. n. marcida grichs. (Erichs. Kaf. Mk. Br. I, 328; .Jen. Spec. Staph. ICC; Kraatz Ins. t. II, 298; Sharp Rev. Brit. Hom. 24C ; l.'.uls. et Rey Bre'vip. 1873, 404; Jan;lb. Kaf. M. II, 165). -240- (Page 143) A characteristic and easily identified species, especially remarkable by long, slender strongly bristle-haired antennae, long elytra and much narrower pronotum. Black, glistening, finely haired; forebody sometimes with feeble bronze reflection; elytra yellowish-brown or cloudy brownish-yellow; pronotum and abdominal tip often brovknish; antennae pitch-brown, their base and ths legs reddish yellow. The head a little narrower than pronotum, finely and sparsely punc- tated, with rather protruding eyes; antennae long, slender, with long brist- les, their first joint somewhat thickened, the third longer than the second, the fourth distinctly longer than broad and longer than the fiftij, the mid- dle and next-last (e-lC) scarcely transverse and about of equal length, distal joint hardly as long as the two next-last joints together. Prono- tum is much narrower than elytra, anteriorly about li times as broad as lonj, feebly narrowing posteriorly, its sides with several long, outstand- ing bristles, dorsum slightly convex, rather finely and densely granulose- punctated, the surface shagreened, with a more or less distinct trans- verse fovea posteriorly before the scutellum. The elytra are peculiarly long and broad in proportion to pronotum, 1^ times as long as this, with dense and rather fine, granulose punctation; abdomen not strongly taper- ing, its first three free dorsal joints with scattered and fine punctation, the following almost smooth, the sides toward tip with long bristles. Middle and hind tibiae each with two outstanding bristles, of which the nethermost is longest. L. 3.5-4 ram. -241- (Page 143) In the o' the antennae are longer than in the Q , their first joint more strongly thickened, the third thickened claviform, and on inner side more densely haired; abdomen is narrov.er and its sixth free dorsal joint at tip more rounded than in the q . In the automn in fungi; distributed in woodland regions, somewhat local, but in this country as a whole not rare. Its habitat is Middle Europe and England, but is not found in Sweden. In North Germany a very rare species is found, procera Kr. , with pro- portionaiely long, light brownish-yellow elytra and rather robust anten- nae, of which the next-last joints are distinctly transverse. In the ^ the posterior margin of the next-last dorsal joint of abdomen is finely notched. L. 2.5-3 mm. - It might possibly also be found in Denmark. Second Series. In the species of this series the temples and genae are in most cases entirely marginated. rarely incompletely, and only in subgenus Dinaraea entirely immarginate. Eyes normally large; antennae as a whole robust and as a rult! thickened distally, their middle and next-last joints more or (Page 144) less transverse, only in few species ( incognita, ravilla) about as long as broad. Pronotum most often 1^ times as broad as long or broader, rarely somewhat narrower, and only in a few species as long as broad; its sides only in exceptional cases adorned v.ith as long and robust bristles as in many of the species of first series, tlytra are longer than pronotum, rare- ly only as long as this, their posterior margin inside the outer corners ■242- (Page 144) sometimes (subg. Mycota et al.) distinctly incurved (or emarginate, trsl.) Abdomen of uniform breadth or in several species feebly fusiform and slight- ly narrowing posteriorly, but never so decidedly tapering as in the spe- cies of first series; its first three free dorsal joints are depressed at base and the fifth sometimes longer than the fourth. iJ^iddle -coxae in most of the subgenera are somewhat separated, but almost contiguous in Hy.ciien et al. ) . 16. Subgenus Ceritaxa Muls. et Pey. 59. H. testaceipes Heer. (Heer Fn. Helv. I, 327, Sharp Pev. L'rit. ilom. 221; Muls. et Fey Bre'vip. 1873, 3B3; ^anglb. Kaf. t/.. II, 190. - varlcOrnis Kr. Ins. C. II, 292). This and the following species are especially distinguished by, that the antennal outer joints from and including the fifth (£-10) are pecull- -274- (Page 162) -arly strongly transverse; furthermore testaceipes is easily identified by the sex-characters of the o . Glistening black, very finely haired; elytra lighter or darker yelloih- brown, at base and on sides often shaded with black; abdominal tip feebly brownish; antennal base and maxillary palpi brownish- or yellowish-red; legs reddish-yellovy . In teneral animals pronotum and abdominal base red- ■•dish-brown. The head is a little narrower than pronotum, roundly transverse, with rather large and somewhat protruding eyes, with especially fine, scatter- ed punctation, glistening; antennae short, as long as heaa and pronotum together, from the fifth joint very robust, uut not thickened distally, their third Joint shorter than the second, the fourth snail, transverse, out only half as broad as the fifth; this is very little narrower than the five following joints and these are nearly Z'i. times as broad as long; distal joint tapering. Pronotum somewhat narrower than elytra, about twice as broad as long, with smoothly rounded sides, deflected, rounded fore- corners, and obtusely rounded— off hind corners, slightly convex, very fine- ly and not densely punctated; elytra '/^ longer than pronotum, rather finely and densely punctated; the first three free dorsal joints of abdomen with fine and scattard, the two following very simple punctation, almost smooth. L. 2.5 mm. (Page 162) In the ^ the posterior margin of the sixth free dorsal joint of abdom- en (Fig. 5C) produced at middle and formed like a short, rather broad, at tip. slightly rounded plate, upon which at upper part two small, smooth boss- es are seen. The corners of posterior margin obtusely rounded off. (cf.ianglb. and Kraatz) . -275- (Pa-e 163) Very rare in t'iddle Europe and southern England. Its occurence in this country is yet doubtful; a single find (^^ ) in cand. Schlick's collec- tion, without close discription, can perhaps be assigned to this species. 17. Subgenus Xenota Muls. et Eey. 61. H. myrmecobia Kr. (Kraatz Ins. E. II, 285; Ihoms. Skand. Col. IX, 278; fJIuls. et Pey Bre- vip. 1873, 3&8; Janglb. Kaf. M. II, 184). At first glance its appearance reminds you somewhat of H. fungi, from which it however without difficulty is separated by, that the body is less (Page 164) glistening, head smaller and more flat, pronotum more feebly convex, el- ytra as a rule shorter, and abdomen posteriorly less tapering. Pitch-olack or black, modulated or dull shine, very finely haired; el- ytra brown, sometimes pronotum also brownish; antennae pitch-brown with somewhat lighter base; mouth-parts and legs reddish or brownish yellow. In the teneral insects only the head and abdominal next-last Joints pitch- black, the rest of the body and the elytra are reddish-brown, antennae yellow-red or rust-red. The head small, much narrower than pronotum, punctation indistinct or particularly fine and scattered, sometimes {o^ ?) flatly depressed at mid- dle and with a feeble groove in medial line; the antennae hardly longer than head and j.ronotum togother, slightly thickened distally, their third joint as long as, or u little shorter than the second, conical and at tip as thick as the fourth, this as long as broad, the following (5-10) Increas- ingly transverse, so that the next-last' l:ecome about tvjice as broad as long; • 276- (Pa^e 164) distal joint short, obtusely tapering. Pronotum as broad as elytra, 1^ times as broad as long, with rather strongly rounded sides without out- standing bristles, feebly convex, rather densely and finely punctated, together with the head finely shagreened in surface and therefore with dull shine, in medial line sometimes feebly, sometimes distinctly (o ?) grooved. Elytra comparatively short, not longer than pronotum, with rather fine and very dense scabrous punctation, their posterior margin inside the outer corners not incurved; abdomen feebly narrowing posteriorly, its first three free dorsal joints with fine and rather dense, the two following with simple punctation. L. 2.5 ram. In the ^the posterior margin of the sixth free dorsal joint at middle feebly emarginate and the next-last ventral joint somewhat more strongly rounded than in the Q . It occurs in the mounds with ^'ormica rufa, but is not, as Kraatz holds, a steady or true ant-guest; outside of the ant hiUs it is found on damp forest and meadow ground under the plant cover; everywhere rare; I have most frequently found it in the woods near Hillerpd at spring time, sift- ed from damp leaves and leaf mold around small forest pools. North and Central Europe. 18. Subgenus Dochmonota Thoms. 62. H. clancula Er. (Srichs. Kaf. Llk. Br. I. 'i6\; et Spec. Staph. 114; Janglb. Kaf. W. II, 190. - atrata Kraatz Ins. D. II. £95. - funebris Thoms. Skand. Col. Ill, 19). A small, short and proportionately broad species, particularly distin- -27!?- (Pa-e 164) juished by a short, broad pronotura, and the dense punctation of abdomen. Black, feeble or modulated gloss, finely haired; elytra often bro\^n- ish; antennae pitch-black or pitch-brown, their base, mouth-parts and the legs reddish-yellow. (Paje 165) The head is short and broad, somewhat narrower Ihan pronotum, slight- ly convex, very finely and rather densely punctated; antennae short, their third joint much shorter and finer than the second, the following from the fourth to the tenth smoothly increasingly thickened, so that the next- last become almost twice as broad as long; distal joint tapering oviform. Pronotum nearly as broad as elytra, twice as broad as long, scarcely tap- ering anteriorly, sides rounded, dorsum slightly convex, very finely and densely punctated, medial line often distinctly grooved, its posterior mar- gin inside the obtuse corners very slightly incurved; elytra ^/^ longer than than pronotum, with very dense, fine scabrous punctation, their posterior marjin inside* the outer corners distinctly incurved; abdomen finely and densely punctated, the foremost dorsal joint somewhat more densely and dis- tinctly punctated than the hinamost. L. 2 m^n. Ln the 5^the pronotal groove Is more distinct than in theO , other- wise the difference between the sexes is scarcely noticeable. Under leaves on daa.p, swampy or marshy woodland ground, but everywhere In North and Middle Kurope very rare; in this country heretofore found only in Nordsjaelland (Pavnsnaes Forest, Donse, Freerslev Hegn, St. Dyrehave et Hiller/Jd). -278- (Page 165) 19. Subgenus i/ilcrodota Muls. et Pey. 63. H. palleola Er. (Erichs. Kaf. Ilk. Br. I, 333; ien. Spec. Staph. 115; Kraatz "ns. D. II. 259; Sharp Pev. Brit. Horn. 181; Thorns. Opusc. II, 131, IV 376; Muls. et Rey Brevip. 1873, 305; CJanglb. Kaf. M. II, 192). A very small species, predominatingly reddish-yellow and extremely fine punctation, within the subgenus mainly identified by the color. Olistening, very finely haired; head black, pronotum reddish-yellow; elytra reddish or brownish-yellow; middle joints of abdomen black or pitchy brown, its base and tip reddish-yellow; antennae distally dark, their base, and the le^s yellow; in dark animals abdomen, with exception of the tip, almost entirely black. Head rounded, proportionately large, almost as broad as pronotum, in- distinctly punctated; antennae as long as head and pronotum together, rath- er strongly thickened distally, their third joint much shorter and smaller than the second, the following from the fourth to the tenth smoothly in- creasingly transverse, so that the next-last become over twice as broad as long; distal joint short oval. Pronotum is Ij times as broad as long, a little narrower than elytra with smoothly rounded sides, extremely fine- ly or indistinctly punctated, flatly convex, posteriorly at middle-line slightly grooved; ely tra '/? longer than pronotum, particularly finely and rather densely punctated, ihts surface extremely finely shagreened; abdom- inal first three free dorsal joints with especially fine and very isolat- ed punctation, the two following almost smooth, the fifth longer than the fourth. L. 1.5 mm. -279- (Pa-e 166) Distinct characters whereby to separate the O from the Q do not occur. Distributed in North and Middle Europe, but singly and very rare in this country, found under damp leaves and in the autumn in fun^i (Aalborg, Fredericia, Holte, Hiller/rfd) . 64, H. indubia Sharp. (Sharp Rev. Brit, Horn. 227; tianglb. Kaf. M. II, 193). Closely allied to H. amicula, but blacker of color, and especially the head and pronotum more glistening; antennae less robust, and in tht O the next-last dorsal joint in margin distinctly serrated. Deeply black, very finely and sparsely haired, glistening; the legs pitchy brown with lighter knees and tarsi. Head rather broad, narrower than pronotum, somewhat depressed or with a flat fovea at middle, almost impunctate; antennae feebly thickened dis- tajly, their second and third joints more slender than in amicul'i, the third shorter than the second, the fourth as long as broad, the next-last joints distinctly transverse, distal joint tapering, as long as the two preceding joints together. Pronotum li times as broad as loag, e little narrower than elytra, anteriorly and posteriorly of same breadth with smoothly rounded sides, flatly convex, punctation extremely fine and very isolated; elytra //j longer than pronotum, likewise especially finely and not densely punctated; first three free dorsal Joints of abdomen with very fine and rather scattered punctation, the following almost smooth. L. 1.5-1.7 mm. In theS't.he posterior margin of the sixth free dorsal Joint of abdom- •280- (Page 166) -en distinctly serrate, with a more robust and more prominent tooth in each corner. In my collection I have a specimen (o) of this species, presumably from North Zealand, but without exact information of place collected etc. The species is distributed in England and Central Eyrope, but generally very rare; said to be found in debris at hay stacks, withered leaves and etnd in alluvium. (Fowler). 65. H. subtilis Scriba. (Scriba Berl. Ent. Ztschr. 1866, 128; Sharp Rev. Brit. Horn. 286; Muls. et Rey Br^vip. 1873, 4&1 ; Janjlb. Kaf. M. II, 194). From amicula, to which subtilis is somewhat similar, it is separated especially by the much more robust and dense punctation of pronotum, and by the darker, brownish-yellow color of the legs; furthermore the anten- nal middle Joints are less robust, and elytra a little longer, as a rule also darker. Black, anteriorly rather with feeble gloss, finely haired; elytra some- times brownish; legs brownish yellow with darker femora. The head about as broad as pronotum, finely and not densely punctated, at middle sometimes feebly grooved; eyes rather large and somewhat protru- (Page 167) ding; antennae quite tobust, brlstle-hairod, their third Joint shorter than the second, the fourth as long as broad. and not broader thtin the tip of the third, the middle Joints feebly, the next-last rather strongly trans- verse, about twice as broad as lonj, distal Joint short and rather robust. Pronotum distinctly narrower than elytra, fully 1; times ie broad as long, -281- (Page 167) with smoothly rounded, single bristle-haired sides, slightly convex, with dense and rather fine, granulate-punctation, sometimes feebly grooved in middle-line posteriorly; elytra amply //:? longer than pronotum v;ith very dense scabrous punctation. The first three free dorsal joints of abdomen with fine and isolated, the fourth with scattered punctation, the fifth almost smooth. The middle tibiae at middle with a distinct bristle. L. 1. 5-8 mm. Differences between (5^ and j^ are not distinctly developed. Distributed in Central Europe; very rare in EenraarS:. I have found it in fungi in Sk0rping forest south of Aalborg, in bird excrement in Lindum forest south of Hobro, also at mouldy plants and excrements around Hiller^d; at present I am not acquainted with other findings. 66, H. amicula Steph. (3teph. 111. Brit. V, 132; ^fanglb. Kaf. M. II, 194.- sericea Muls. et Rey Opuso. Ent. I, 1852, 41; Bre'vip 1873. 347; Kraatz Ins. D. II, 2SE ; Thome. Skand. Col. Ill, 8&; Sharp Rev. Brit. Horn. 225). A small, rather evenly broad and feebly convex species with short robust antennae, further identifiable by the feeble punctation of abdomen and the light yellow color of the legs. Black, finely, yet distinctly haired, somewhat modulated shine; elytra brovinish; antennae pitch-brown, their base and the mouth-parts lighter; lags light brownish-yellow. The head very little narrower than pronotum, extremely finely or in- distinctly punctated, in the O feebly tjrooved ut middle; ey^ s rather large and slightly protruding; antennae short, robust, thickened distally, their -282- (Page 167) third joint much shorter and narrower than the second, obconic, the fourth transverse, the following from the fifth to the tenth increasingly strong- ly transverse, so that the next-last become over twice as broad as long; distal .joint short, shorter than the two preceding joints together. Pro- notura only a little narrower than elytra, I2 times as broad as long, an- teriorly and posteriorly of same breadth with smoothly rounded sides and single bristles, feebly convex, very finely and densely punctated, as well as head and elytra particularly finely shagreened and therefore somewhat of dull shine, sometimes feebly grooved in medial line or with e faint impression before scutellum ( o ); elytra only .j longer than pronotum, (Page 168) somewhat more distinctly punctated than this; first three free dorsal joints of abdomen with very fine and isolated punotation, the following almost smooth. L. 1.8-2 mm. In the ^ the sixth free dorsal joint of abdomen truncated at tip and broadly arcuato-emarginate (Fig. 61); the next-last ventral joint a little elongate and roundly tapering. Distributed everyv-here and common; especially numerous in compost, in debris at old hay stacks and like places, less frequent at fungi and out- flowing tree-sap. 67. H. mortuorum Thoms. (Thoms. Skand. Col. IX, 281; Sharp Pav. Brit. Horn. 229; Janglb. Kaf. M. II, 195. - ? atricolor Sharp s. St. 230). Very closely allied to amiciila, but most often smaller, the legs dark- er of color and the antennae shorter. -263- (Paie 168) Black, especially finely haired; forebody feebly, abdomen rather strong- ly jlistenlns; elytra often brownish; legs pitch-brown or yellowish-brown with darker femora. The head nearly as broad as pronotum, extremely finely or indistinctly punctated, in the ^slightly grooved at middle; antennae short and robust, their third Joint much shorter and narrower than the second, obconic, the following from 4-10 increasingly transverse, so that the next-last become twice as broad as long; distal joint as long as the two preceding joints together. Pronotum is very little narrower than elytra, 1^ times as broad as long, scarcely narrowing posteriorly, with feebly rounded sides, slight- ly convex, densely and very finely, yet distinctly punctated; elytra k~'',s longer than pronotum, very finely and densely, somewhat more distinctly punctated than pronotum; abdomen evenly broad, its first three free dorsal joints with rather dense, very fine somewhat scabrous punctation, the fol- lowing almost smooth. L. 1.2(-2) mm. In the d'the sixth free dorsal Joint of abdomen at tip feebly emargi- nated, and the next-last ventral joint short triangularly tapering (Thorns., Janglb. ) . It is distributed in North and ::entral liurope also England and will probably also be found in this country, where it however has not at pres- ent been incountered. Reported to occur especially in the soil unaer car- rion, but also at manure and rotten plants. Thomson gives its length as 2 mm, and that of sericea (umicula) as 1.5 mm. -26«- (Paje 168) 68. H. inquinula Er. (iJrichs. Kaf. U. Br. I, 3:54; Jen. Spec. Staph. 116; Kraatz In?. D. II, 297; Sharp Rev. Brit. Horn. 231; Muls. et Rey Bre'vip. 1873, 336; Jang lb . Kaf. U. II, 19£). The smallest species of the ^enus Homalota; identified by its smallness and in relation to the closest allied species furthermore by the form and punctation of pronotum. (Paje 169) Narrow, rather evenly broad and flatly convex; blacl;:, i inely haired, little shine; elytra brov.nish; legs brownish-yellow with a little dark- er femora. The head is hardly as broad as pronotum, as long as broad, with rath- er straight sides, punctation extremely fine and dense; antennae short and proportionately robust, their third joint small and obconic, much smaller and shorter than the oviform second Joint, the following from the fourth to the tenth distinctly and increasingly transverse, so that the next-last become twice as broad as long; cistal joint short obtuse at tip. Pronotum narrower than elytra, anteriorly about li times as broad as long, feebly narrowing posteriorly, densely and especially finely punctated; el- ytra ^/? longer than pronotum, punctated like this. Ihe foremost free dor- sal joints of abQDmen very finely and rather densely punctated, the hind- most with scattered or simple punctation. L. 0.7 mm. The difference between (3 and ^ is indistinct. At manure and rotting plants, widely distrlbutHd; rare in Lnisr country; (Ry, Odense, ilillerpd et al.); easily overlooked. -2b&- (Page 169) 69. II. liliputana Bris. (Oh. Bris. Ann. 3oc. Ent. Fr. 1860, 344; Muls. et Rey Brevip. 1873, 355; ianjlb. Kaf. M. II, 195). A small, narrov* and evenly broad species, closely allied to amicula. but considerably narrower, icore glistening, pronotum and elytra less dens- ely punctated and the femora most often darker. Black, glistening, very finely, sparsely haired; elytra brownish; legs brownish-yellow with darker femora. Head nearly as broad as pronotum, with especially fine, isolated punc- tation; eyes rather large, scarcely protruding; antennae rather short, thickened distally, their third joint shorter and smaller than the second, the fourth about as long as broad, the following (5-10) increasingly trans- verse, so that the next-last become tv,ice as broad as long; distal joint ovally tapering. Pronotum distinctly narrower than elytra, amply //? broad- er than long, with feebly rounded sides, scarcely narrowing posteriorly, especially finely and not densely punctated, sometimes slightly impressed at middle (5'?), sides with a few outstanding bristles; elytra amply /.^ longer than pronotum, rather densely and especially finely punctated; ab- domen of even breadth or feebly broadened posteriorly, its first three free dorsal joints depressed at base, with scattered and especially fine, the following witn simple punctation, almost smooth. L. l.E-1.8 mm. Distributed in Midale Europe. At Hillerzfd, in August 1911, I found in the soil under a dead bird, some specimens of a small Homalota (Mlcrod ota) which undoubtedly belong to this species. -286- (Pa^'e 170) 70. H. atomarla Kr. (Kraatz Ins. D. II, 254; Sharp Rev. Brit. Horn. 214; Janglb. Kaf. 'J.. II, 1S6. -,;labricula Thorns. Skand. ^ol. IX, 28C). A small, rather narrow and evenly broad species, v (Fig. 63) is at middle incurved, but in thei^(Flg. 63a) with a rather deep, semicircular incision. The next-last ventral joint -Ml' (Page 173) in the C> is somewhat elon^ata and broadly emarginate at tip, in the Q slightly eaiariinate. Very rare; in this country so far only found in North Sjaelland in fungi (Hiller^d and Frederiksvaerk, 7-£, ieC3, o5. Author). Distributed throughout North and Middle Europe, said also to occur at outflowinj tree sap and under bark, 75. H. divisa Wark. (Warkel lerm. Ztschr. V, 213; Kraatz Ins. E. II, 279; Sharp Fev. Brit. Horn. 208; Muls et Pey Brevip. 1873, 324; Sanglb. Kaf. U. II, 188.-aridula Thorns. Skand. Col. Ill, 75). A slightly depressed, rather evenly broad, dully glistening species, closely allied to ni.^ricornis. but in regard to this recognized inter alia by denser punctation of abdomen, shorter third joint and longer distal joint of the antennae, also by the sex-characters of the O . Black, all over with dull or modulated shine, finely haired; elytra uiost often brownish; antennae pitch-black or pitch-brown, sometimes red- dish-brown, their base, and maxillary palpi lighter; legs brownish or red- dish yellow. Head, pronotum and elytra very densely and especially finely shagreen- od in surface and therefore dull or with moderated gloss; the head a lit- tle narrower than pronotum, and a little broader then long with hind cor- ners rounded off, and large, but feebly protruding eyes, extremely finely and not densely, often indistinctly punctated, in th..' O with a broad im- pression at middle and medial line grooved; the entiinnao rather slender and only feebly thickened distally, their third Joint a little shorter than •292- (Pa^e 173) the second, the fourth as lonjj as broad, the middle and next-last joints distinctly but not strongly transverse, almost of eqyal breadth, distal joint proportionately large, lonrjer than tne two preceding joints togeth- er. Pronotum a little narrower than the elytra, amply 1 ^/S times as broad as long, with anteriorly feebly rounded, posteriorly more straight sides, flatly convex, very finely and densely punctated, in the p often with a feeble longitudinal groove posteriorly before scutellum, in the Q the en- tire middle-line broadly depressed or grooved. Elytra /.j" longer than pronotum, finely and very densely punctated; abdomen a little more glist- ening than the forebody, the surface extremely finely and feebly shagreened, its first three free dorsal joints distinctly and densely punctated, the fourth less densely, the fiftl. sparsely papctated. L. 2.5-3 mm. In the O the head and pronotum deeply grooved (see above); the sixth fret dorsal joint of abdomen at tip transversally truncated or flatly emarginated, posterior margin slightly thickened and extremely finely ser- rated, its corners slightly prominent; sides of the joint finely ledje- shaped margined (Fig. 64). (Page 174) Distributed in Europe; on damp ground under leaves and moss, also in birds' nests, and at fungi and carrion; rather rare in this country. 76. H. nigricornis Thorns. (Thoms. Ofv. Vet. Ac. Forli. 1852, 142; Slcand. Col. Ill, 86; Kraatz Ins. D. II, 281; Sharp Hev. Brit. Horn. 209; Muls. et Fey Bre'vlp. 1873, 636; Janglb. Kaf. K. II, 163). Like the preceding species slightly depressed, rather ejually broad -263- (Pa^'e 174) and feebly or moderately ^listenin^-; identified especially by entirely dark or black antennae, and by the broadly concavous depressed pronotum of the 304- (Page 180) The head, pronotum, and elytra especially finely shagreened in the surface and therefore with feeble or dull gloss; the head a little nar- rower than pronotum, rather coarsely and densely punctated, deeper than in atricilla; antennae a little longer than head and pronotum together, feebly thickened aistally, bristle-haired, their first three joints slen- der, the third shorter than the second, the fourth as long as broad, the middle ones feebly, the next-last more strongly transverse, amply 1^ times as broad as long, distal joint hardly as long as the two preceding joints together. Pronotum is much narrower than elytra, a little broader than long, slightly narrowing posteriorly, with anteriorly feebly rounded sides, slightly conves, finely and rather densely punctated, with a suggestion of a flat impression posteriorly before the scutellum; the elytra rather flat, Is times as long as pronotum, very densely and rather finely punc- tated, their posterior margin inside the outer corners distinctly incur- ved; abdomen somewhat glistening, its first three free dorsal joints with fine and isolated, the two following with simple punctation. L. 3-3.5 mm. The difference between o and ^ is about as in the preceding species, but less distinctly aeveloped. It lives exclusively on the ocean strand, and is found under seaweed and other alluvium, is distributed like the preceding species and at most places in this country more frequent than same. Third Series. The species beloaging to t!ie snb^ienera of this series are all distin- guished by this, that the firai. /our free dorsal Joints of abdomen are -305- (Page 181) depressed at base. In this they are opposite to all other Homalota spe- cies, which at most have only three at base depressed joints, and are thereby easily identified. The head in subgenus Dadobia is conspicuously square with sharp hind corners and straight .sides; in the other subgenera i§ more or less round- ed off. Temples and jenae are most often margined, in sub;jenus Ptychandra peculiarly sharp and undulated, in Plataraea incomplete, and only in subg. Dadobia and Pachnida entirely wanting. The eyes are normally large, rare- ly as in Plataraea rather small; antennae quite robust, the outer or next- last joints transverse. Pronotum varies in form; elytra always longer than pronotum; abdomen of even breadth, its fourth free dorsal joint dis- tinctly depressed at base like the three preceding; the fifth free joint is sometimes longer than the fourth, as in Bessobia. The middle coxae are rather broadly separated in Alianta and Ptychandra, in the rest rather close togethe: or even contiguous at middle; the tip of mesosternum reaches at least to the middle between the coxae. First joint of hini tar- si is only in Ptychandra somewhat elongate, longer than the second. 25. Subgenus Anopleta Muls et Bey. 84. H. corvina Thoms. (Thorns. Ofv. Vet. Ac. Korn. 1856, 101, Skand. 3ol. Ill, 88; Sharp Fev. Erlt. Hom. 212; langlb. Kaf. M. II, 201. - lepida Kraatz Ins. C. II, 30t ; Muls, et Pay Br^vip. 1875, 22). A small, rather narrow and evenly broad species with large head, nar- row pronotum ana proportionately Ion.; elytra, in form not unlike angusti- collis, but smaller, ana on account of the four transversally grooved free •306- (Pa^-e 131) dorsal joints of abdomen, more closely related to subgenus Bessobla spe- cies. Black, finely haired, rather glistening; the elytra black or black- ish-brown; legs brov.nish-yellow ; basal joint of the antennae sometimes brownish. The head is in circumference nearly as large as pronotum, hardly nar- rower than this, as long as broad, with rather large, somewhat protruding eyes, finely and rather densely punctated, in the S'with a deep, in the ^ with a feeble longitudinal groove in middle-line; antennae a little longer than head and pronotum together, feebly thickened distally, their first joint proportionately thick, especially in the ^ , the third consider- ably shorter than the second, the fourth small, about as long as broad, the following from the fifth to the ninth increasingly transverse the latter twice as broad as long, the tenth distinctly longer than the ninth; distal Joint short with obtuse tip. Pronotum much narrower than elytra, a little broader than long, feebly narrowing posteriorly, with anterior- ly slightly rounded sides bearing single bristles, flatly convex, with rather fine and dense granulate punctation, in the o most often with a deep and rather broad longitudinal impression on middle, in the p with a sugjestion ot, or a feeble longitudinal groove in middle-line posterior- ly; elytra li times as long as pronotum, finely and rather densely punc- (Page 182) tated and the surface as well as that of head and pronotum particularly finely shagreened; abdomen evenly broad, with stronger shine than the fore- -307- (Page 182) body, its first four free dorsal joints distinctly but not strongly de- pressed at base, the first three Joints with fine and scattered, the two following with sparse or simple punctation. L. 2-2.5 mm. In the ^ the grooves of head and pronotum are deep, and the first joint of the antennae strongly thickened; the sixth free dorsal joint of abdomen at tip rather transversally truncated - in the ^ rounded off - and in the o the next-last ventral joint is a little elongate and nar- nowed, the tip rounded. Distributed in North and Middle Europe, especially in woodland regi- ons; in fungi and at rotting plant matter; in this country rare or rath- er rare. 26. Subgenus Bessobia Thorns. 85. H. occulta ir. (Srichs. Kaf. Mk. Br. I, 317; :Jen. Spec. Staph. 83; Kraatz Ins. D. II, 233; Thorns. Skand. Col. Ill, 43; Sharp Fev. Brit. Hom. 143; Muls. et Eey Ere'vip. 1875, 131; Sanglb. Kaf. K. II, 202). Father elongate and of even breadth, in form not unlike H. elongatula, however easily separated from same inter alia by the four, at base trans- versally grooved, dorsal joints of abdomen, the sex-characters of the o and tne more robust, entirely black antennae. Elack, rather finely haired; the head, pronotum and elytra with rath- er feeble gloss, abdomen very glistening; the elytra in adult animals pitch-brown with black reflection, and the legs darkly brownish-yellow; in less mature animals the elytra are brownish yellow, the legs lighter, and pronotum and abdominal tip sometimes pitch-brownish. -306- (Page 182) The head, pronotum and elytra particularly finely shagreened in sur- face and therefore with feeble or modulated shine. The head a little nar- rower than pronotum, rather large with slightly protruding eyes, punc- tation very fine and isolated, sometimes indistinct, in the o with a broad, flatly grooved longitudinal impression at middle, in the ^ most often with a short and feeble groove in middle-line between the eyes; antennae rather long and robust, but only feebly thickened distally, fiae- ly bristle-haired, their first Joint rather long, and especially in the 6 distinctly thickened, the third hardly as long as the second, the fourth as long as broad, the following (5-10) feebly increasingly broadened dis- tally, so that the next-last become about \\ times as broad as lonj; dis- tal joint shorter than the two preceding Joints together. Pronotum l//j times as broad as long, narrower than elytra, very feebly narrowing pos- teriorly, with anteriorly slightly rounded, single bristle bearing sides, with fine and rather isolated punctation, in the o slightly convex, with a small and feeble transverse impression posteriorly before the scutellum, in the ^ as a rule i.ith a flat longitudinal impression at middle. The el- ytra amply 1'/? times as long as pronotum, with very fine, isolated punc- tation; abdomen anteriorly with fine and very scattered punctation, pos- (Page 183) teriorly almost smooth, its fourth free dorsal joint at base equally strongly depressed as the three preceding Joints; the fifth free dorsal Joint a little longer than the fourth. L. 3-3.5 mm. In the ^ the sixth free dorsal joint cf abdomen dorsally smooth and impunctate, but the surface very densely shagreened and therefore almost -309- (Page 183) dull, posteriorly broadly truncated with rounded corners and slightly incurved posterior margin, an sides and posteriorly bounded by an elevate sharp margin, which is higher on sides than on posterior margin. The next-last ventral joint is somewhat elongate and rounded at tip (Fig. 69). In the jp the sixth free dorsal joint at tip as a rule distinctly, but feebly incurved. Distributed in North and Middle Europe; in this country rare or lo- cal. It is found especially in fungi and compost, but also at manure, offal and carrion. 86. H. fungivora Thorns. (Thoms. Skand. Col. IX, 260; Sharp Rev. Brit. Horn. 144; ianglb. Kaf. U. II, 203. - gibbera Wuls. et Rey Br^vip. 1875, 141). Much like the preceding species, from which it however without dif- ficulty can be separated by the following deviations; It is ordinarily a little smaller, the antennae a little more thlck- enea toward tip and their middle Joints (4-6) distinctly finer than in occulta; pronotura is proportionately narrower and posteriorly distinct- ly narrowing, especially in the o . L. 2.5-3 mm. In the o the head is broader and deeper impressed at middle between the eyes than in the O of occulta; dorsal side of the sixth free dorsal Joint of abdomen not entirely smooth, but flatly longitudinally grooved in middle-line, th^ sides as in occulta with elevate and sharp margins, but posterior margin is flat and iramarginate, almost straight or feebly rounded, and at middle with a suggestion of two small, closely placed teeth. -310- (Pa-e 183) At fungi and rotting plants; distributed in North and Middle Europe; very rare and local in this country (3or;a', Nylc^ing F., Aalborg, Hilleryd) 87. H. monticola Thorns. (Thorns. Ofv. Vet. Ac. Forh. 1652, 143; Skand. Col. Ill, 43; Kraatz Ins. S. II, 234; Sharp Fev. Erit. Horn. 147; Muls. et Rey Brevip. 1875, 145; ianglb. Kaf. M. II, 203). In form, color, punctation and size very closely allied to H. occulta. It differs from this species in that the forebody, especially pronotum is more glistening its surface less distinctly shagreened, that the an- tennae is shorter, their first joint in the o less robust, the second and (Page 184) third joints of same length and less elongate, that pronotum is broader, ih times as broad as lon^, scarcely narrowing posteriorly, and that the elytra are a little shorter. L. 3.5-4 mm. In the o the head and pronotum at middle most often more sharply impressed than in occul ta, but the surest diagnostic characters of this species are the sex-marks of the ^ which are very characteristic: The sixth free dorsal joint of abdomen is broad at tip, and at middle with a deep. angular incision, and on dorsal side with four, sometimes feeble, longitudinal folds, outside of these on each side with a sharp elevated margin, bounding the sides of the incision and the rounded hind corners (Fi;. 70). In the ^ the same dorsal Joint is feebly emarginate at tip. In fungi, at carrion and rotting plants, distributed in North and Midale Europe; in this country rare and loctjl (Py; Vordingborg, Hiller^rJd; Fyde, Loll, et al.). -311- (Page 184) 88. H. excellens Kr. (Kraatz Ins. D. II, 235; Sharp Rev. Brit. Horn. 146; Janglb. K&f . M. II, 203). Like the preceding species very closely allied to occulta, with whid"! it inter alia agrees in punctation of the body, the impressions of head and pronotum, color of the legs etc. As a rule it is somewhat smaller, forebody somewhat more feebly shagreened in surface and therefore more glistening, elytra darker, antennae a little shorter; pronotum proporti- onately broader, elytra a little shorter; but it is especially the char- acters of the sixth free dorsal joint of abdomen in the ©which makes it easy to identify. In relation to monticola, to which it is most closely allied, and from which the _^ is rather difficult to separate, it is like- wise most surely determined by the differences in the sex-characters of the OO' It is however also ordinarily smaller than same; the head is less broad, considerably n^irrower than pronotum, this is likewise narrow- er and only //^broader than long. L. 3 mm. In the 5'^ the sixth free dorsal joint of abdomen on dorsal side with a slightly arcuate transversal row of small, more or less distinct granules which often are confluent, forming a transversal carina. Back of this the sides and posterior margin are turned upward and sharply bounded, and pos- terior margin at middle with a sharp angular incision. Distributed in the mountainous regions of Lliddle Europe and in N'orth Europe (Scotland, Iceland, Norway, Finland). In Denmark here"lof ore apparent- ly only observed at Hlller(*d, where I found a few specimens under a dead bird, together with monticola (6. 1911). -312- (Page 185) 27. Subgenus Ptychandra ^Janglb. 8&. H. hepatlca 3r. (Erichs. len. Spec. Staph. lOii; Kraatz Ins. D. II, 268; Thorns. Skand. Col. IX. 262; Sharp Rev. Erlt. Horn. 186; t/.uls. et Rey Brevip. 1873, 613; Janglb. Kaf. M. II, 202. - exarata Sharp Rev. Brit, Horn. 186). A rather prominent and characteristic species with rather broadly separated middle coxae, sharply marginate temples and genae, four trane- versally grooved abdominal joints and slender hind tarsi, of which the first Joint is proportionately long; further identifiable by the coarse punctation of the forebody and by the sex-characters of the O . It varies: A smaller form with finer punctation, exarata Sharp, occurs. Black or pitch-black, rather finely grayish-yellow finely haired; fore- body with the elytra feebly, abdomen rather strongly glistening; elytra broHnish-red , most often darker at base; tip of abdomen and often also the posterior margins of its other joints brownish or brownish-yellow; the antennae and maxillary palpi rust-red, often darker at base; legs yellowish-red. The head, pronotum and elytra densely and especially finely shagreen- ed in surface and due to this with feeble or modulated shine. The head is much narrower than pronotum, rounded, with rather small, slightly pro- truding eyes and sharply marginate temples and jenae, most often *ith rather coarse, but flat and not dense punctation, sometimes finer or even indistinctly punctated, in the O as a rulu somev^hat flatly depressed at middle, in the © convex; the antennae rather long, robust, but not strong- ly thickened distally, their second and third joints of same length, elon- •313- (Page 185) ^ate, the fourth about as long as broad, the followit;^ (5-10) feebly in- creasingly, but distinctly transverse, the next-last about twice as broad as long, the distal joint as long as the two preceding joints together, long tapering. Pronotum somewhat narrower than elytra, about Ij times as broad as long, scarcely narrowing posteriorly, with anteriorly round- ed and deflected, posteriorly more straight sides, convex or flatly con- vex (O), with flat and rather dense, coarse or rather fine ocellate punctation. The elytra //j? longer than pronotum, flatly, rather densely and most often rather coarsely punctatedj their posterior margin inside the outer corners distinctly incurved. The first three free dorsal joints of abdomen with fine and scattered punct&tion, the following almost smooth, the first four free dorsal joints transversally grooved at base, but less deeply in the fourth than in the three preceding, the fifth not longer than the fourth. The first joint of hind tarsi is proportionately long, 1^ times as long as the second. L. 4-5 mm. In theO^elytra along the suture, but not entirely parallel with this, with a distinct longitudinal fold, which posteriorly runs sharply into the sutural corner. The fifth free dorsal joint of abdomen at middle before posterior margin with a small, glistening angular boss. The next-last ven- tral joint in the <5 at tip rounded off, in tlie ^ rather deeply incurved and along posterior margin with dense, short bristles. (Page 186) n. exarata Sharp is scarcely specifically different from hepatica Er., but is a considerably smaller and narrower form of same, as a rule also >314. (Page 186) of a lighter brown color; the head, pronotum and elytra is more finely shagreened and punctated and somewhat more glistening, pronotum seems a little shorter and is more flatly convex than in hepatica. The sex- characters in the tated, the fourth sparsely, the fifth simply punctated, almost smooth. The first four free dorsal joints are depressed at base, the fourth in the a as deeply as the three preceding, in the ^ less deeply, yet distinctly depressed. L. 4-C mm. In the 3 the fifth free dorsal Joint at middle before the posterior •316- (Page 187) margin as a rule vith a small smooth sranule, tho sixth is broadly trun- cated and in the margin with four obtuse teeth (Fig. 72), of which the corner teeth are largest (H. depressa Thorns.) J occasionally the middle teeth are entirely obsolete, so that the joint has only rwo teeth (H. brunnea Thoms.) In the o posterior margin of the same joint is feebly incurved. Distributed in Middle and North Europe. Not rare in Eenmark in wood- land regions in the eastern and southern part of the country under leaves and moss; it is most easily obtained by net, sometimes numerous on wood- land plaines and meadows. Fare in northern Jutland. 91. K. nelanocephala Ileer. (Heer Faun. Helv. I, 331i Ganglb. Kaf. II, 205. - nigrifrons Erichs. Jen. Spec. Staph. ICO; Kraatz Ins. D. II, 267; Muls. et '"ey Bre'vip. 1873, 674. - ni^riventris Ihoms. Ofv. Vet. Ac. Forh. 185f, 99; Skand. Col. II, 46; Janglb. Kaf. M. II, 205. - sordlda Kraatz Ins. D. II, 268). Very closely allied to and much like brunnea, of same depressed or rather flat form and about of same size, but .i.ost often with entirely black or darkly colored abdomen, v*ith narrower head and pronotum, denser punctation, more densely haired, almost dull elytra, however especially deviating in, that the prominent sex-characters of the two next-last ter- gitei of the O are wanting. Fitch-black or pitch-brownish, finely yell owThalred. and dully glist- eniaj ; pronotum often yellowish-red; elytra yellovvish-brown, often with dark reflection; tip of abdomen and posterior m..rglns of its foremost Joints brownish-red; antennal base, mouth-parts and legs reddish-yellow. 517- (Pa^e 188) Head, pronotum and elytra particularly finely shagreened in surface, however more distinctly than in brunnea, therefore feebly or dully glis- tening. The head is small, much narrower than pronotum, with small eyes, rather fine and scattered punctation, flatly depressed at middle, in the O often equally as strongly as in the O ; antennae same as in brunnea or their outer joints somewhat more strongly transverse. Pronotum much narrower than elytra, 1//:? times as broad as lon^j, with slightly rounded, singly bristle-haired sides, with rather dense and fine, flat punctation, at middle with a more or less distinct, broad longitudinal impression, in the £ sometimes as distinct as in the c^ . Elytra -^'^f longer than prono^ turn; densely and finely punctated and rather densely haired with feeble or dull silky gloss; abdomen somewhat more densely punctated than in brun- nea, its first three free dorsal joints rather densely and finely, punc- tated, the fourth with more isolated, the fifth with simple punctation; the first f^ur free dorsal joints distinctly depressed at base. L. 4-4.5 mm. In the ^ the fifth and sixth free dorsal joints of abdomen smooth, without prominent sex-characters such as in brunnea, the posterior mar- gin of the sixth tergite of the O is however less rounded than in the ^ , sometimes almost transversallly truncated, and feebly emarginate at mli- dle; the next-last sternite of the d is slightly elongate, feebly narrow- ing and rounded at tip. In the Q tae posterior margin of the same ventral Joint at middle very finely incurved and in the margin with a row of fine eiually long, light bristles. Distributed throughout Central Europe, also found in Sweden, but not -318« (Page 188) in England. In this country seemingly very rare and local, heretofore found only in North Zealand«under fagot and in hollow trees. (5. 04; 6. 07; Hillerpd, Lyngby. Author). 29. Subgenus Alianta Thorns. 92. H. incana Sr. (3richs. Kaf. I-k. Br. I, 329; ien. Spec. Staph. 109; Kraatz Ins. D. II, 236; Ihoms. Skand. Col. 44; Sharp Rev. Brit. Horn. 150; Muls. et Fey Bre'vip. 1673, 170; Janglb. Kaf. M. II, 205). A characteristic species with rather broadly separated middle-coxae; the mesosternum between these long and narrowly tapering; furthermore identifiable by the color of body, the four dorsal joints of abdomen which are transversally grooved at base, and the rather coarse, granulate punc- tation of abdomen, also by the sex-characters of the o . Black, often bluish-black, dull gloss, very finely and rather densely gray-haired; antennae distally toward tip pitch-black or pitch-brownish, their lower half reddish-yellow; the legs pitch colored with red knees and tarsi. (Page 189) The head, pronotum and elytra particularly densely shagreened in sur- face and due thereto of dull shine; the head a little narrower thun pro- notum, rounded, with slightly protruding eyes, rather fine and isolated, flat punctation, at middle occasionally slightly impressed, mora often with short and fine groove; antennae as long as head and pronotum togeth- er, rather strongly thickened distally, bristle-haired, their third Joint a little shorter than the second, the fourth small, as long as broad, the following (5-10) of same length, increasingly transverse, the next-last -319- )?1 (Page SarSO about twice as broad as lonj; distal joint slrort, tapering. Pronotum is much narrower than elytra, 1 '/^ times as broad as lonj^, with anterior- ly' slightly rounded sides, posteriorly distinctly narrowing, with rather fine and dense, flat punctation, at middle posteriorly most often with slight, flat depression, sometimes feebly grooved at medial line; el- ytra nearly la times as long as pronotum, with very dense and rather ro- bust, granulate or scabrous punctation. The first four free dorsal joints of abdomen rather deeply transversally grooved at base, the first three at base with dense and rather fine, the hindmost half with less dense and fine, granulate punctation, the two following joints with isolated and rather robust, granulate punctation. L. 3-3.5 mm. In the ^ the sixth free dorsal joint of abdomen with coarse and dense jranulate punctation; this punctation as a rule bounded by four distinct jranules posteriorly before the hind margin; the posterior margin is flat- ened and smooth with rounded posterior edge, which at middle most often has a sharp Incision. - In the Q the joint is formed and punctated simi- larly, but less distinctive, posterior margin as a rule entire. It lives in the leaf sheaths of cat tail (Typhti latifolia), apparent- ly preferring such plants of which the stems are bored by the larva of the noctuids (Nona.^ria typhae or cannae) , and may be taken numerously here. Distributed, and in this country not rare in bo.;s, ponds and lakes, where the cat tail grows; often also in alluvium at such places. 30. Subgenus Pachnida Uuls. et Fey. 93. H. ni.:ella Er. .320- (Page 18e) (Erichs. Kaf. Mk. Br. I, 323; Jen. Spec. Staph. &C; Kraatz Ins. D. II, 237; Sharp Rev. Brit. Hoir. 151; Muls et Fey Brevip. 1875, 60; GJan^lb, Kaf. M. II, 206. - punctiventris Thorns. Skand. Col. II, 2S2). A narrow, evenly broad and rather flat species v-ith immarginate temp- les and ^enae, recognized furthermoj-e by the color, the four transversal - ly grooved dorsal joints of abdomen and its sharp punctation, also by the sex-characters of the ^ . Black, dull or dully glistening, finely haired; antennae dark with brownish-yellow base; legs pitch-black or pitch-brown v.ith brownish-yel- low knees and tarsi. Head and pronotum extremely densely and finely shagreened in surface and entirely dull. The head is proportionately large, as broad e.z pro- (Page ISO) notum, with slightly rounded sides, not protruding eyes, rather flatly and finely, densely and not deeply punctated, in the o slightly impressed at middle; antennae as long as head and pronotum together, distinctly thickened distally, their third joint finer and a little shorter than the second, the fourth about as long as broad, the following (5-10) smoothly increasingly transverse distally, so that the next-last become about twice as broad as long; distal joint is short, tapering. Pronotum anteriorly nearly as broad as elytra, scarcely broader than long, feebly narrowing posteriorly, with anteriorly slightly rounded sides, very flatly convex. Indistinctly punctated, in the jg with a feeble, in the ^with a stronger, broad longitudinal impression at middle; the elytra a little longer than pronotum, with dense and rather robust scabrous punctation, somewhat jlis- -321- (Page 19C) tenin^; abdomen glistening; its first four free dorsal joint depressed at base; the first three and base of the fourth robustly and densely punctated, the hindmost half of the fourth and the entire fifth in the o. with fine and simple, in the o^with fine and simple granulate punctation. L. 2-2.5 mm. In the o the sixth free dorsal joint of abdomen in the posterior mar- gin with four small, yet distinct teeth, separated by equally large, slight- ly incurved intervals. In wet bojs and meadows, at the shores of rivers and lakes, where it lives in the leaf sheath of reeds and in the leaf -corners of other water plantsi from which it is washed to shore in alluvium, often in company with incana. Distributed in Middle and North Europe; rather rare in this country. 31. Subgenus Dadobia Thoms. 94. H. immersa £r. (Srichs. Kaf. Mk. Er. I, 324; ien. Spec. Staph. 96; Kraatz Ins. D. II, 252; Sharp Rev. Brit. Horn. 165; Muls. et Fey Brevip. 1875, 322; ^anglb. Kaf W. II, 133. - planicollis Thoms. Skand. Col. II, 287). A small, very characteristic species, narrow, flat and of even breadth, and with four transversally grooved abdominal joints, but especially re- markable by a peculiarly, square head, which makes it easy to recognize in the entire genus. Deeply black, glistening, very finely and sparsely haired; the anten- nae pitch-black or pitch-brown with brownish-yellow base; legs brov/nish yellow with blackish-brown femora. ».322» (Page 190) The head, pronotum and elytra extremely finely shagreened in surface and their gloss thereby feebly dulled. The head (Fig. 73) is proportion- ately large, as broad as pronotum, broadly square with straight, posteri- orly parallel sides and rather large, slightly protruding eyes and rigth- (Page 191) angular hind corners, posteriorly almost evenly truncated and with finely bounded posterior margin, dorsally flat and often slightly impressed at middle, punctation especially fine, often indistinct and sparse^ genae immarginate. The antennae fully as long as head and pronotum together, smoothly thickened distally, their first joint robust, the second and third both short, but the third shortest, obconical, the middle and next- last joints (4-10) of same length, the middle ones feebly, the next-last a little more distinctly transverse, about 1^ times as broad as long, the distal joint comparatively thick, with obtuse tip, as long as the two pre- ceding joints together. Pronotum anteriorly scarcely as broad es elytra, about as long as broad, feebly narrowing posteriorly, with anteriorly feeb- ly rounded sides, dorsally flat, punctation particularly fine and very is- olated and often with a slight, broad impression along the middle; elytra amply l^/.? times as long as pronotum, punctated about same as this, flat; abdomen more glistening than the forebody, with very fine simple puncta- tion, its first four free dorsal joints rather deeply transvereally grooved at base, the fifth as long as or a little longer than the fourth. L. l.£-2mm. Tn the O the next-last ventral joint of abdomen somewhat elongate and broadly rounded off at tip. -323- (Page ISl) Distributed in forests, but not frequent, in frass* under the bark of attacked trees,' especially pinaceous trees, but also beech and oak; more rarely at outflowing tree sap. In North and Kiddle Europe, Fourth Series. The common characters for the species of this series consist espe- cially in this, that the eyes are peculiarly small and under normal size; in connection with this the temples are long, much longer than the eyes. - Abdomen rather of even breadth, and only its first three free dorsal segments are transversally grooved at base. The temples and genae are entirely margined in subgenus Ousipalia, in the rest of the subgenera either not at all or incompletely margined; the antennae in our species more or less robust and thickened distally, their outer joints sometimes very strongly transverse. Pronotum varies in shape, in most cases broader than long. In a few subgenera ( Jeostiba. Ousipalia) the elytra are distinctly shorter than pronotum, in the rest either as long as this or longer. The fifth free dorsal joint of abdomen in several cases (subg. Meotica, Parameotica) distinctly longer than the fourth. Middle coxae almost contiguous or very narrowly separated and the mesosternal tip reaches ordinarily midway between the coxae; it is short- est in Parameotica, which thereby approaches the subg. Hy^roecia. (Page 192) 32. Subgenus Aleuonota Thoms. 95. H. rufotestacea Kr. (Kraatz Ins. -. II, 245; Sharp Pev, Brit. 'Jom. 163; Tuls. et Pay -324- •Lilerally - gnawlngs, tr. (Page 1S2) Brevip. 1875, 29; Janglb. Kaf. U. II, 211. - atricapllla Thorns. Skand. Col. III. 53). A rather narrow, elongate species with small eyes and long temples, further recognizeable by the color, very robust antennae and proportio- nately long elytra. Reddish yellowish-brown or pitchy brown, sparsely and finely haired, somewhat glistening'; the head and the next-last abdominal joints often pitch-black; pronotum yellowish-red, elytra, abdominal tip, antennae, mouth-parts and legs reddish-yellovv. The head is rather large, however narrower than pronotum, as long as broad, v.ith small, somewhat protruding eyes and comparatively long, almost parallel sides, distinctly constricted behind, with rather fine, isolated and not deep punctation, the surface very finely shagreened and often with a short impression at middle; antennae short and very robust, thickened distally, with erect and long bristles, their first joint ro- bust and as long as the two following joints tojether, the third much shorter than the second^ and obconic, the following (-i-lC) very strongly transverse, the fourth at least twice as broad as long, the middle and next-last ones three times as broad as long; distal joint short, with obtuse tip. Pronotum a little narrower than elytra, about as long as broei, feebly narrowing posteriorly, with slightly rounded sides, with rather fine, flat and not dense punetation, surface very finely shagreened and with a fine, most often distinct and entire groove at middle-line; el- ytra amply I'/j times as long as pronotum, punctation especially fine and -325- (Page 192) scattered, indistinctly shagreened; abdomen almost impunctate, its fifth free dorsal ^oint not longer than the fourth. L. 3-3.5 mm. In the o the next-last ventral joint of abdomen triangularly taper- ing; in the O the same joint is broadly rounded off and its posterior margin often feebly incurved at middle. Distributed throughout North and Middle Europe, but all over very rare; in this country so far only found singly in Sattrup forest at Alssund ('Vustnei) . 96. H. splendens Kr. (Kraatz Ins. D. II, 246; Sharp Pev. Erit. Hom. 163j Ganglb. Kaf. M. II, 212). Narrow, elongate and of even breadth, also identifiable by small eyes and the very polished, almost impunctate dorsal sirface of the body. Pitch-black or pitchy brown, very sparsely an;? finely haired, very strongly glistening or polished; elytra yellowish-brown; the tip of abdon.- en and its foremost joints most often lighter than the next-last, reddish- brown, the tip sometimes brownish-yellow; antennae and mouth-parts red- dish-yellow; the legs yellow. (Pa^e 193) Head and pronotum impunctate and very faintly shagreened, the head as broad as pronotum or only insignificantly narrower, rather convex, with small eyes and longer, feebly rounded temples; llie untennae as long as head and pronotum together, rather robust, thickened distally, their third Joint about as long as the second, the following (4-10) Increasingl-y -326- (Page 193) transveree, so that the next-last become over twice as broad as long; the distal joint as long as the two preceding Joints together, obtuse tip. Pronotum approximately as broad as elytra, as long as broad, with very feebly rounded sides, sometimes slightly depressed at middle; el- ytra //^longer than pronotum, with extremely fine, hardly visible punc- tation, the surface extremely finely reticulated; abdomen with very simp- le punctation, its fourth and fifth dorsal joints of same length. L. 2,5 mm, The difference between o and Q indistinct. Distributed in Central Europe and South England, but very rare every- where. In Denmark heretofore (as far as known) only two specimens are found, one in the vicinity of aanderborg ('Vustnei), the other presumably in Lollana (Author's collection). 33. Subgenus Meotica Muls. et Fey. 97. H. exilis Erichs. (Erichs. Kaf. Mk. Br. I, 353; Jen. Spec. Staph. 115; Kraatz Ins. IJ. II, 260; Thoms. Skand. Col. Ill, 54; Sharp Bev. Brit. Horn. -180; Muls. et P.ey Bre'vip. 1875, 7-*; Janglb. Kaf. M. II, 213). A very small, narrow and evenly broad species with proportionately large head, small eyes, very robust, short antennae, and extremely fine, almost invisible punctation. The fifth free dorsal joint of abdomen con- siderably longer than the fourth. Pitcny brown or reddish-brown, very finely haired and with moderate or feeble gloss, the head most often black, and the elytra sometimes brownish-yellow; abdominal tip, antennal oase, mouth-parts and legs red- dish yellow. -327- (Pa^e 193) Head and pronotum indistinctly punctated, but the surface extremely finely shagreened and therefore of moderate shine; the head is lar;je in proportion to pronotum, as broad as this, short oval, slightly convex, sometimes with a very feeble groove in middle-line; the eyes small, not protruding, and the temples twice as long as these; antennae short, very robust, strongly thickened distally, their third joint peculiarly small, much shorter and finer than the second, obconic, the fourth transverse, the middle and next-last (5-10) increasingly, very strongly transverse, about 3 times as broad as lon=;, distal joint short, rather thick, tip obtuse. Pronotum a little narrower than elytra, a little broader than long, feebly narrowing posteriorly, with anteriorly very feebly round- (Page 194) ed sides, slightly convex, without impressions; the elytra a little lon- ger than pronotum, with rather dense, extremely fine punctation. The foremost free dorsal joints of abdomen rather densely, extremely finely punctated, the following with simple and indistinct punctation; the fifth free dorsal joint i longer than the fourth. L. 1.5-2 mm. In the B' the next-last ventral joint slightly elongate and rounded off at tip. Distributed in Europe, and not rare on damp ground; in this country often numerous in the sprirXa-, in alluvium from meadows and marshes. 98. H. indocilis Heer. (Heer Faun. Helv. I, 333; Uuls. et Pay brevip. 1875, 90; Ganglb. Kaf. r.'. II, 213. - pallens Fedtb. Faun. Austr. I, 662; Kraatz Ins. D. II, Z£l ; Sharp Rev. Brit. Horn. 181). -328- (Page 194) From exllis, to which it is very closely allied, especially in re- gard to form of body and punctation, structure and strength of antennae, it is separated by the following details; It is a little smaller, body rather unicolorous brownish yellow, some- times with dark reflection across the next-last wbdominal segments, the antennae and legs yellow, the eyes especially small and the temples are four times as long as these; pronotum about as broad as elytra, its sides almost straight, elytra scarcely longer than pronotum, and the fifth free dorsal joint of abdomen is peculiarly long, over twice as long as the fourth. L. 1. 2 mm. In the o ihe next-last ventral joint not elongate, at tip broadly and flatly rounded. Distributed in Middle Europe and also found in Scotland; in this coun- try very rare and local on damp rich soil, in compost and at hot houses (Dyrehaven, Rosenborg Park, Nykpbing F.)* 34. Subgenus Amidobia Thorns. 99. H. talpa Heer. (Heer Faun. Helv, I, 1341, 594; ^anglb. Kaf. ?/.. II, 215. - parallela Mannh. Bull. Wosc. 1844; Kraatz Ins. D. II, 262; Skand. :;ol. Ill, 255; Sharp Pev. Brit. Hom. 183; Mule, et Rey Brivip. 1875, 66). A very small and fine myrmecophilous species with small eyes, propor- tionately short elytra and extremely fine punctation, in appearance not unlike a small H. analis. but narrower than this, with more rounded head and much finer, scattered punctation of abdomen, of which the fourth and fifth free dorsal joints are of equal length, and the sixth without inci- sion. (Page 194) Black, especially finely haired and rather glistening; pronotum oft- en pitch-brown; elytra brown or reddish-brown, their base, mouth-parts and legs yellow. (Page 195) The head is a little narrower than pronotum, rounded, very feebly dilated posteriorly, rather convex, indistinctly punctated; the eyes small and very feebly protruding, temples twice as long as the eyes; an- tennae rather short and quite robust, smoothly thickened distally, their third joint small and much shorter than the second, the fourth as long as broad, the middle ones feebly, the next-last (7-10) more strongly transverse, twice as broad as long, distal joint short, obtusely tipped. Pronotum is a little narrower than elytra, a little broader than long, with rounded sides and corners, smoothly convex, extremely finely and rather densely punctated, sometimes with a suggested transverse fovea before the scutellum, more rarely feebly grooved at middle-line; elytra only a trifle longer than pronotum, very finely and rather densely punc- tated, their posterior margin inside the outer corners feebly incurved. The first three free dorsal joints of abdomen with especially fine and very scattered punctation, the following almost smooth, the fifth not longer than the fourth. L. 1.5 mm. The difference between o and Q indistinct. It lives exclusively with ants, especially in the mounds with the forest ant Formica rufa and v. pratenls, where it sometimes can be found in great numbers; it occurs more rarely and singly with the black ant Lasius fuli^inosus; distributed in Middle and North Europe and not rare in Denmark. -330- (Page 195) 35. Subgenus Amischa Thorns. ICC. H. analls Jravh. (Jravh. Micr. 76; Erichs. Kaf. Mk. Br. I, 332; 3en. Spec. Staph. il4; Kraatz Ins. D. II, 256; Sharp Rev. Brit. Horn. 175; Wuls. et Fey Brevip. 1875, 92; Ganglb. Kaf. M. II, 214. - ? platycephala Thorns. Skand. Col. III. 294). A small, rather evenly broad and slightly convex species with small eyes and comparatively long temples, and in which the principle charac- ters furthermore lies in the shape of the head, punctation of abdomen and the form of the next-last abdominal joints; in color and size it is some- what variable. Black, very finely haired, with feeble silky, somewhat modulated shine; pronotum, elytra and abdominal tip pitch orown or reddish-brown, occasi- onally yellowish-red; antennae most often brownish with brownish-yellow base, sometimes entirely brownish-yellow; mouth-parts and legs darker or lighter brownish yellow. The head (Fig. 74) is a little narrower than pronotum, broadest pos- teriorly with plump, rounded temples and rounded-off hind corners, anteri- orly narrowing and with very small, not protruding eyes, so that the shape (Page 196) becomes short oviform triangular; the temples are at least three times as long as the eyes, dorsal side of the head convex, with rather dense and extremely fine scarcely visible punctation, in both sexes without impres- sions; antennae rather short, slightly thickened distally, their third Joint shorter than the second, the fourth as broad as long, the middle ones feebly, the next-last distinctly/ transverse, 1^ times as broad as long, -331- (Page 196) distal joint proportionately large and thick, the tip obliquely truncated. Pronotum a little narrower than elytra, Is times as broad as long, with rounded corners, slightly convex, with dense and extremely fine, scarcely vicible punctation, with a transverse fovea posteriorly before scutellum and sometimes a feeble groove in middle-line; elytra a little longer than pronotum, very finely and densely punctated. The first four free dorsal joints of abdomen densely and very finely , punctated, the following with more isolated and still finer punctation; the fifth is much longer than the fourth. L. 2-2.5 mm. In the o the sixth free dorsal joint of abdomen (Fig. 75) at tip deep- ly and broadly semi-circularly incised, in the q most often less deeply and more flatly, sometimes only slightly incurved. The next-last ventral joint of the o is somewhat longer than in the

ol. Ill, 74. - littorea Sharp Rev. Brit. Horn. 109). Closely related to the following species, but more convex and of dark- er color; within the subgenus both recognized by the dense punctation of abdomen. Black, glistening, finely haired; elytra and tip of abdomen brownish; antennal base, mouth-parts and legs reddish yellow. The head is narrower than pronotum, rather convex, especially finely and not very densely punctated; the antennae rather long and slender, feebly thickened distally, their third joint a little shorter than the second, the middle ones longer than broad, the next-last about as broad as lonj, distal Joint oblong. Pronotum somewhat narrower than elytra, (Page 203) a little broader than long, with smoothly rounded sides, slightly convex, especially finely and densely punctated, most often with a small, feeble fovea posteriorly before scutellum, eonetimes also feebly grooved at mid- dle-line; elytra I4 times as long as pronotum, together broader than long, somewhat depressed, particularly finely and densely punctated; abdomen entirely to the tip finely and densely punctated and less finely haired than the forebody, more shiny; its fifth free dorsal joint distinctly lon- ger than the fourth. L. 2.5 mm. In the & the next-last sternile somewhat elongate and rounded off at tip, in the o feebly incurved. -343- (Page 203) Distributed throughout the greater part of Europe at salt lakes and ocean beaches. In Denmark heretofore found only in a few places on the coast of Zealand, under seaweed (Amager, Vordingborg, Prof. Schi^dte, Dr. Meinert). 1C9. K. marina Muls. et P.ey. (Muls. et Pey Op. Ent. II, 1853. 39; Brevip. 1875, 158; CJanglb. Kaf. M. II, 222. - imbecilla "'at. , Sharp Pev. Erit. Horn. 110.gr thlnobia Thorns. Skand. Col. Ill, 73). A flatly convez species, especially identifiable by long, slender, entirely yellow antennae and by the punctation of abdomen; very closely allied to meridlonalis Muls.. but more flat and lighter of color; longer antennae and the posteriorly less dense punctation of abdomen. Fitch-black or brownish-black, rather glistenit^g, finely haired; el- ytra reddish-brown; abdominal tip broadly brownish-yellow; antennae en- tirely yellowish-red; mouth-parts and legs yellov;. The head is broacly roundly-oval, slightly narrowing anteriorly and with almost flat eyes, a little narrower than pronotum, especially finely and not densely punctated; antennae long and slender, not thickened to- ward the tip. their third joint as long as the second, the fourth longer than broad and a little shorter than the fifth, the middle and next-last ones of equal length and almost of equal breadth, all longer than broad, distal joint as long as the two preceding joints together, oblong-oval. Fronotum very little narrower than elytra, a little broadei .than long, anteriorly and posteriorly of same breadth, with smoothly rounded sides, flatly convex, especially finely and rather densely punctated, often with a feeble longitudinal impression at middle posteriorly; elytra a little -344- (Page 203) longer than pronotum, flat, finely and densely punctated; abdomen finely punctated to the tip, but the, foremost free dorsal joints a little more densely and sharply punctated than the last; the fifth joint is distinct- ly longer than the fourth. L. 2.5-3 mm. In the 5" the next-last ventral joint of abdomen somewhat elongate and rounded off at tip, in the a distinctly and broadly incurved. Distributed at salty water in Middle and North Europe; in this coun- try rare or very rare, at the strand under seaweeds. (Aalborg, Ksbjerg; Dyrborg, hyp and Asnaes; Kungsted et al.). (Page 204) 110. H. gemina Sr. (Erichs. Kaf. Mk. Br. I, 330; tJen. Spec. Staph. 112; Kraatz Ins. D. II, 255; Thorns. Skand. Col. IX, 275; Sharp Rev. Brit. Horn. 172; V.uls. et Rey Brevip. 1875, 179; Ganglb. Kaf. M. II, 224). In appearance not unlike H. analis, but as a rule larger than even the largest forms of this, with comparatively smaller, more rounded head, larger eyes, longer antennae, and less densely punctated abdomen, also differently formed sex-characters of the O^ . Black or pitch-black, somewhat glistening, finely gray-haired; el- ytra often, more rarely also the pronotum, brown; abdominal tip brownish- yellow, antennae lighter or darker rust colored, their base, mouth-parts and le^s reddish yellow. The head, pronotum and elytra particularly finely shagreened in sur- face, and therefore of somewhat moderate shine; the head proportionately small, much narrower than pronotum, rounded, with rather large, scarcely • 345- (Page 2C4) protrudinj eyes, isolated and particularly fine or indistinct punctation and in the £ with a suggestion of a short groove, in the 3^ as a rule with a distinct and longer groove in meiial line; the antennae rather long, slender, very feebly thickened toward the tip, their third joint about as long as the second, the fourth longer than broad, the middle ones very feebly, the next-last somewhat more distinctly transverse, distal joint long-oval. Fronotum very little narrower than elytra, about 1^ times as broad as long, feebly narrowing anteriorly, with slightly rounded sides, feebly convex, very densely and finely punctated, withia feeble, some- times geminate-punctured transverse impression posteriorly before the scutellum; elytra about //^ longer than pronotum, somewhat more distinct- ly and densely punctated than this; first three free dorsal joints of abdomen finely and not densely punctated, the following with very scat- tered punctation, the fifth a little longer than the fourth. L. ?.-2.5 mm. In the ff the next-last sternite somewhat elongate and roundly narrow- ing. On damp meadow and forest ground, at lake shores and water-courses under the plant cover and in alluvium; distributed in all parts of our country, but rare and rather local. North and Middle ?]urope. 111. H. Aubel Bris. (Bris. Ann. Soc. Snt. Fr. 1860, 339; Sharp Pev. Brit. Horn. 171; :;anglb. Kaf. M. II, 224. - breviceps Thorns. Skand. Col. IX, 273). Closely allied to, and In appearance not unlike a large H. gemina, but as a rule considerably larger than this, v*lth broader head, Qietinct- ly grooved head and pronotum, and with somewhat tapering, more densly punc- tated abdomen. -346- (?a-e 2C4) Black, somewhat :5listenini, finely haired; the elytra sometimes brown- ish; antennae pitch-black or pitch-brown, their base, mouth-parts, and legs brownish yellow. (Page 2C5) The head is much narrower than pronotum, rounded, faintly roundly widened posteriorly behind the rather large, scarcely protruding eyes, with isolated and very fine punctation and with one, as a rule distinct, sometimes abbreviated medial groove; antennae slender, their third joint ■48 long as the second, the fourth, fifth and sixth longer than broad, the next-last feebly or not transverse, distal joint oval, tapering. Pro- notum 1^ times as broad as long, posteriorly somewhat narrower than el- ytra, feebly narrowing anteriorly, with slightly rounded sides, convex, very finely, densely punctated, posteriorly before the scutellum with a small transverse fovea and one from there issuing, more or less distinct longitudinal groove in middle-line; the elytra about //j longer than pro- notum, less finely, but fully as densely punctated as this; abdomen some- what tapering posteriorly, its first three free dorsal joints densely and very finely punctated, the two following with increasingly scattered and less distinct punctation. L. 2.5-Z mm. In the ^ the grooves of head and pronotum are more distinct than in the Q ; the next-last ventral joint of abdomen is somewhat elongate and rounded off at tip. It is known from Middle Europe, England and Sweden; in Denmark it is found on damp, marshy jround at Hillerrfd, especially in the autumn under leaves and withered plants, now and then numerously (Author), also sing- ly in alluvium at Furestf at al. in north Zealand. -347- (Page 205) 112. H« Islandlca Kr. (Kraatz otett. Ent. Zeitg. XVIII, 1857, 284; Jan^lb. ?:af. K. II, 223. - eremlta Bye, Sharp Eev. Brit. Horn. 16?). Father broad and flatly convex; within the subgenus especially iden- tified by a peculiarly broad pronotum, which in combination with the some- what tapering abdomen, gives it some likeness to a very large H. fungi or orbata. Black or pitch-black, rather glistening, finely haired; elytra, pro- notum and abdominal tip sometimes brownish; antennae and mouth-parts pitch- black or brownish-red; legs brownish yellow with darker femora. The head is broadly rounded, with scarcely protruding, rather small eyes, much narrower than pronotum, with scattered and very fine or indis- tinct punctation; antennae rather long and slender, their second and third joints elongate, equally long or the third longest, the middle ones (4-7) longer than broad, the next-last as long as broad, distal joint about as long as the two preceding joints together, tapering. Pronotum as broad as or sometimes even a little broader than elytra; li times as broad as long, with anteriorly deflected and slightly rounded, posteriorly more straight sides, very finely and rather densely punctated, with a small fovea poste- riorly before the scutellum, and most often also a feeble medial groove issuing from the fovea; elytra somewhat longer than pronotum, together broader than long, finely and densely punctated; abdomen somewhat tapering (Page 206) posteriorly, its first three free dorsal joints finely and rather densely punctated, the two following v^itu scattered and evanescent punctation. L. 3-3.5 mm. -348- (Page 206) In the 3^ the head at middle most often slightly impressed and the longitudinal groove on pronotum more distinct than in the o J the ab- dominal next-last ventral joint is elongate, somewhat narrowed and round- ed off at tip. A northern species, known especially from Scotland, Iceland, the northern part of Norway and Finland. In this country only a few speci- mens have heretofore been found at Hiller^d on damp forest and and boggy ground under leaves (4. 1905-06. Auth.). 113. H. clavipes Sharp. (Sharp Rev. Erit. Kom. 1869, 124. 5anglb. Kaf. M. II, 223). Closely allied to H. elongatula, but larger and considerably more robust, most often also darker in color; pronotum is broader and more convex, elytra obviously shorter, and abdomen, especially posteriorly, more densely punctated. Black, glistening, finely haired; elytra and abdominal tip often brown- ish; antennae pitch colored, their base, mouth-parts and legs brownish yellow-red. The head is rather broad, rounded, with normally large, slightly pro- truding eyes, considerably narrower than pronotum, particularly finely and rather densely punctated, most often with a short groove or a feeble Impression at middle; antennae rather long and scarcely thickened dlstally, their third joint a little shorter than the second, the four following (4-7) longer than broad, the next-last as long as broad or feebly trans- verse, distal joint oval, tapering. Pronotum as broad or nearly as broad -34(9- (Page 206'^ as elytra, and as lon^ as broad, hardly narrowing posteriorly, with smooith- ly rounded, single bristle-haired sides, convex, particularly finely and rather densely punctated, with" a small fovea posteriorly before scutel- lum, and a feeble, sometimes indistinct longitudinal groove in middle- line; elytra scarcely longer than pronotum, together fully as broad as long, very finely and very densely punctated. The first three free dorsal joints of abdomen with fine and dense, the two following more scattered, but fully as distinct punctation. L. 3.5-4 mm. In the 3' the next-last ventral joint of abdomen considerably elonga- te, feebly narrowing, at tip broadly rounded off or slightly emarginate. A highland and also northern species, especially distributed in the Scottish Highlands and Finland, but also found in the mountainous regi- ons of Pohemia, and in later years frequently found in this country, in the northen part of Jutland on miry forest and meadow ground under leaves and in alluvium, rarer In North Zealand (Berllemosen, HillerjJd et al.). - Together with H. islandica. Aubei . curtiper.nis et al. it should apparent- ly be included among the remnants of an older, subglacial insect fauna, of which traces are found here and there in Jutland and North Sjaelland. (Page 207) 114. H. hygrotopora Kr. (Kraatz Ins. D. II, 220; Sharp Pev. Brit. Horn. 120; Janglb. Kaf. V,. II, 225. - opacula Thorns. Skand. Col. IX, 272. - hyjjrobla I/uls. et Fey Brivip. Rather broad and robust, closely allied to H. elon,:atula, but consider- ably broader, larger and more robuEt, as a rule also darker and the fore- body more dully glistening; in combination with form and color recognized by the sex-characters of the o^ . -360- (Page 207) Black, finely haired; forebody with feeble or modulated and some- what silky gloss, abdomen more glistening; elytra often darkly yellow- brown; antennae pitch-black, their first joint, the mouth-parts and legs brownish or reddish yellow. Head, pronotum and elytra particularly finely shagreened in surface, which in combination with the fine, rather dense ■^iir hair vestiture gives the forebody a modulated silky gloss. The head is large and broad, with rather large, somewhat protruding eyes, narrower than pronotum, very finely and not densely punctated, at middle often (o^) with a feeble fovea, or slightly depressed; the antennae rather slender, scarcely thick- ened distally, their third joint scarcely shorter than the second, both somewhat elongate, the fourth narrow, half as long as the third, and as well as the fifth and sixth longer than broad, the following and next-last (7-10) as long as broad, distal joint hardly twice as long as the tenth, tapering. Pronotum is considerably narrower than the broad elytra, 1 »/3 times as, broad as long, scarcely narrowing posteriorly, with anteriorly very feebly rounded, posteriorly almost straight sides, flatly convex, very finely and densely punctated, most often with a small fovea posteri- orly before scutellum; elytra together broader than long, 1//? times as long as pronotum, very densely and finely punctated. The first three free dorsal joints of abdomen finely and rather densely punctated, the two fol- lowing with sparse or simple punctation. L. 4-4.5 mm. In the S' the first joint of the antennae somewhat thickened and to- gether with the three following densely haired on the inner side. The -351- (207) next-last ventral Joint of abdomen is considerably elongate, smoothly tapering and with feebly rounded sides, rounded off at tip; it distinctly reaches forward under the last tergite. Distributed throughout the greater part of Europe. In Denmark it is found in various parts of the country at water-courses, lake shores and on the strand, under damp leaves and alluvium, often numerous; somewhat local, but as a whole not rare. 115. H. elon,^8tula ^ravh. (Gravh. Micr. 79; Srichs. Kaf. Mk. Er. I, 320; len. Spec. Staph. 8S (in part); Kraatz Ins. D. II, 216; Thorns. Skand. Col. Ill, 67; Sharp Rev. Brit. Kom. 121; I.'uls. et Rey Bre'vip. 1875, 164; Janglb. Kaf. 'A. II, 225). Very variable in size and color, but especially identified by the elongate, slender, rather evenly broad and flatly convex form of the body, antennal structure, and the sex-characters of the 3*. (Fig. 78). (Page 208) Black or pitch-black; rather glistening and finely haired; pronotum often brownish; elytra reddish-brown, yellowish-brown or brown, most oft- en darker at base, sometimes entirely pitch-brown; tip of abdomen brown- ish or brownish-yellow; the antennae brownish, sometimes rust-red, their base, mouth-parts and legs reddish yellow. The head, pronotum and elytra extremely finely shagreened in surface and therefore with somewhat modulated shine. The head is narrower than pronotum, roundly oval, with normally large, scarcely protruding eyes, convex, particularly finely and not densely punctated, sometimes with a small, feeble fovea; antennae slender and rather long, scarcely thicken- ed distally, their second ond third joints elongate, of same length or -362- (Page 203) the third occasionally a little shorter than the second, the middle ones longer than broad, the next-last (8-10) as lonj as broad or very feebly transverse, all rather cylindrical, distal joint as long as the two pre- ceding joints together, tapering. Pronotum a little narrower than el- ytra, as lon^ as broad, scarcely narrowing posteriorly, with anteriorly slightly rounded, posteriorly almost straight sides, slightly convex, especially finely, but not densely punctated, often with a feeble or on- ly suggested small fovea posteriorly before the scutellum, sometimes also with slight medial groove; elytra //^longer than pronotum, as lon^- as their breadth together, very finely, densely punctated. The first three free dorsal joints of abdomen with dense and fine, the two following with scattered or sparse punctation. L. 2.5-4 ram. In the S' the next-last ventral joint of abdomen much elongated, feeb- ly narrowing and rather broadly rounded at tin; it reaches considerably forward under the last dorsal joint, so that the tip is visiole from a- bove. In the £ the posterior margin of the sixth free terglte at middle most often slightly incurved. Distributed in Europe on damp or serai-damp ground, and in this coun- try very common everywhere; larger and smaller forms occur often separa- te in spots. 116. H. malaaocera Thorns. (Thoms. Ofv. Vet. Ac. Fb'rh. 1856, 94; Skand. Col. Ill, 69; Janglb. Kaf. U. II, 226. - volans Scribe Stett. Entom. Ztj. 1859, 413; Sharp Fev. Brit. Hom. 122; Muls. et Pey Bre''vip. 1875, 175. - hulophila Thoms. Skand. 3ol. Ill, 71). A very variable species both in form, color end size, in its variable- -353- (Page 208) *»ness characteristic in that, it is now closest to one, and now to an other of the closely allied species (elon-:atula. terminalis, jyllenhali, Aubel et al.)« Qrdinarily most like elon^^'axula. but with differently form- ed antennae and sex-characters and shorter pronotum. (Page 209) Black, finely haired, with somewhat modulated gloss; the elytra and abdominal tip often brownish; antennae pitch-black or pitch-brown with unicolorous or somewhat lighter base; mouth-parts and legs brownish or reddish yellow. Head, pronotum and elytra especially finely shagreened in surface and due to this of modulated shine; the head a little narrower than pro- notum, roundly oval, with rather large, scarcely protruding eyes, con- vex, particularly finely and not densely punctated, at middle sometimes with a short and fesble groove; antennae a little shorter and most often also a little thinner than in elon,;atula, their third Joint definitely shorter than the second, the middle ones (4-7) longer than broad, the next-last (8-10) as long as broad or very feebly transverse, distinctly obconical, distal joint oval, tapering. Pronotum somewhat narrower than elytra, a little shorter than in elongatula, I4 times as broad as long, feebly narrowing posteriorly, and with anteriorly slightly rounded sides with single outstanding side-bristles, slightly convex, particularly fine- ly and rather densely punctated and with a small transverse fovea posteri- orly before scutellum, also sometimes slightly grooved at medial line; elytra somewhat longer than pronotum, together about as broad as lon^, .354. (Page 209) very finely and densely punctated. The first three free dorsal joints of abdomen with fine and rather dense, the tv.o following with scattered and more feeble punctation. Middle tibiae as a rule with a rather robust out- standing bristle at middle, hind tibiae viith a finer bristle. L. P.5-4 mm. In the ^ the next-lajt ventral joint of abdomen somewhat elongate, but not as strongly as in el on^atula, slightly narrowing and at tip broadly rounded off; it does not extend distinctly from under the abdominal tip. In the 9 the sixth free dorsal joint at tip not incurved. A.Tong deviating forms two must especially be noted: V&r. a.. Smaller than the type form, especially considerably narrower and more evenly broad; antennae and legs most often lighter, the former brownish-yellow, the latter yellow; pronotum narrower end more distinctly narrowing posteriorly; the first three free dorsal joints of abdomen some- what more densely punctated. Var. b. Larger than the type, and with lighter elytra, abdominal tip, antennae and legs. The different forms are connected by intermediates and do not always permit for exact division. The type form is distributed all over in this country, and commonly on damp or swampy forest or meadov, ground, frequent in alluvium at brooks, lakes etc. Variety &_ is seemingly more common than variety Jj; both occur sometimes separate, Eometlmes mingled with the type form. 117. H. terminalis iJravh. (iravn. ijlon. 160; Kraatz Ins. D. II, 219; Muls. et Key Bre'vip. 1875, -355- (Page 210) 168; ^an^^lb. Kaf. M. II, 227. - ,^rlsea Thorns. Ofv. Vet. Ac. Forh. 1S52, 137). In regard to size, color, entennal strength etc. very variable, most closely allied to elogjiatula; like this it is slencler and elongate, but more convex and cylindrical, with smaller and narrower head than same, and with more robust antennae, and longer elytra, and thereby easily iden- tified within the subgenus. Black or pitch-black, glistening, finely gray-haired; pronotum often pilch-brown, and the elytra as a rule reddish-brown or brownish, occasi- onally yellowish-brown, last joint of abdomen and posterior margins of the rest of the joints most often yellowish-brown; antennae pitch-brown or reddish-brown, their base, the mouth-parts and legs reddish-yellow. Head, pronotum and elytra at surface extremely finely shagreened and thereby with somewhat modulated shine. The head is rather small, oval, with very feebly protruding eyes, which are a little shorter than the temples, slightly convex, with extremely fine, isolated punctation and often with a feeble, short groove at middle; antennae rather long, more or less slender, and more or less thickened dlstally, always more robust than in elon-^atula, sometimes remarkably robust, their third joint short- er than the second, middle ones sometimes as long as broad or longer, sometimes feebly transverse, the next-last most often distinctly broader than lonj, distal joint thick, obtuse at tip. Pronotum is a little nar- rower than elytra, as lonj as broad, not narrowing posteriorly, with slight- ly rounded sides anteriorly, convex, particularly finely, densely punc- tated and with a small feeble transverse fovea posteriorly before the ecu- tellum, and moat often with a dislincv, komatliMB entire longitudinal groove -366- (Pa^e 210) at middle-line; elytra fully //^ longer than pronotum, longer than in elon- ^atula, very finely end densely punctated, abdomen evenly broad, its first three free dorsal segments densely and finely punctated, the fourth less densely, the fifth with isolated punctation and longer than the fourth. L. 3-4 mm. In the ^ the next-last sternite somewhat elongate and rounded off at tip; in the Q the posterior margin of the sixth tergite more rounded than in the 3^ . Among the deviating forms a very narrow variation is especially noted, smaller and darker than the type, and with remarkably robust antennae, which are strongly thickened distally. On swampy meadow and forest ground, distributed, but rather rare; the narrow variation very rare (forest swamps at Hillerod, author). The spe- cies is distributed in Middle ;!;urope, also found in Skaane, but not in England. 118. H. Jyllenhali Thorns. (Thorns. Ofv. Vet. Ac. Forh. 1856, S4 ; Skand. Col. Ill, f6; Janglb. Kaf. 'li.. II, 227. - londinensis Sharp Kev. Brit. Hom. 118). X5uch like H. elon.^atula. and like this slender, elongate and feebly convex, but larger and more robust then even the largest forms of same; (Page 211) the antennae are less slender, their outer joints broader and more coni- cal; the sex-characters of the ^ are differently formed, wnlcn orings it somewhat closer to lur idipennis. Black or pitch-black, feebly glistening, finely grayish-yellow hair- ed; pronotum often reddish-brown; elytra reddish yellow-brown; darker at •357. (?8he 211) base; tip of abdomen more or less broadly, and sometimes also posterior margins of its joints reddish-yellov. ; antennae pitch colored, their base, mouth-parts and legs reddish yellow. Both forebodjf and abdomen are extremely finely shagreened in surface and therefore feebly ^listenin^. The heaa is narrower than pronotum, broad- ly oval, with normally large, feebly protruding eyes, convex, very finely and not densely punctated, at middle sometimes short grooved; antennae rather long and slender, feebly thickened distally, their second and third joints elongate, of same length, the middle ones (4-6) longer than broad, thi next-last feebly transverse, obconic, distal joint long-oval, taper- ing. Pronotum a little narrower than elytra, as long as broad, not narrov. - ing posteriorly, with feebly rounded sides bearing single outstanding brist- les, slightly convex, especially finely, densely punctated and with a fine more or less distinct longitudinal groove in middle-line; elytra //? long- er than pronotum, very finely and very densely punctated. The first three free dorsal joints of abdomen finely and densely punctated, the two fol- lowing with scattered or sparse punotation, the fifth longer than the fourth. L. 4-4.5 mm. In the 3^ the next-last ventral joint of abdomen considerably elongate and tapering, the tip itself truncated and flatly emarginate. In the o the posterior margins of the same joint and of the sixth free dorsal joint rounded off. On damp meadow and forest ground; distributed throughout North and Middle Europe; rather rare and local in this country (Aalborg, Sk^rping -358- (Page 211) Holme; Dravid forest at Lj^gumkloster, Trelde, (iaabense, Hillerpd et al.)» 4 2. Subgenus Felur=;a Muls. et P.ey. 119. H. lurldipennis L!annh. (r»;annh. Brach. 77; Kraatz. Ins. D. II, 221; Sharp Tev. Brit. Horn. 117; Muls. et Rey Bre'vip. 1873, 586; CJanglb. Kaf. M. II, 227. - producta Muls. . Thorns. Skand. :ol. Ill, 66). A robust, rather evenly broad, somewhat flat species, of same size ae the preceding and most closely related tc this, but most often broader and with distiadtly separated middle-coxae; otherwise identified by the brownish-yellov. color of elytra and the peculiar sex-charaoters of the o . Blsck or pitch-black, feebly or dully glistening, finely haired; pro- notum often pitch-brown, sometimes reddish-brown; elytra brownish yellow; tip of abdomen and often also the posterior margins of the rest of the joints brownish or reddish yellow; antennae pitch colored, their base, mouth-parts and legs reddish-yellow. (Page 212) The forebody particularly finely and densely shagreened in surface and due to this of dull shine; the head broad, a little narrower than pro- notum with feebly protruding eyes, very finely and rather densely punc- tated, at middle often (5^) flatly impressed; antennae rather long and robust, slightly thickened toward the tip, their second and third Joints elongate, of same length, the fourth longer than broad, the middle ones as long as broad, the next-last feebly transverse, distal Joint about as long as the two preceding joints together, tapering. Pronotum a little narrower than elytra, \'l'3 times as broad as long, oroadly s^juare, with -359- (Page 212) feebly rounded, single bristle-haired sides, flatly convex, especially finely, densely punctated, often with a feeble icapression posteriorly before scutellum, sometimes also with feeble medial groove; elytra //j longer than pronotum, together broader than long, very finely and densely punctated; abdomen glistening, its first three free dorsal joints finely and rather densely punctated, the fourth with scattered, the fifth sparse and indistinct punctation, longer than the fourth, L. 4-4.5 mm. In the ^ the next-last ventral joint of abdomen strongly prolonged and strongly upwardly curved, the sides incised and therefore narrowed, Xha tip itself broadly truncated and emarginate; in the ^ the same joint only feebly elongate, rounded off at tip. Posterior margin of the sixth free dorsal joint in both sexes feebly incurved at middle. On damp forest or meadow ground, at watering places and brooks and like places, distributed in North and Mid'He Europe; rather rare in this country, but found in diverse parts of the country, mostly singly. 43. Subgenus Thinobaena Thoras. 12C. H. vestltft jravh. (Oravh. Mon. 140; Erichs. CJen. Spec. Staph. 84; Kraatz. Ins. D. II, 208; Sharp Pev. Brit. Horn. 126; Muls. et Fey Er^vlp. 1R73, 557; 'ianglb. Kaf. M. II, 170.- guis^iuiliarum Thoms. Skand. c;ol. Ill, £9). In appearance and form most like H.elongatula, but often considerably larger and more robust, and with shorter, leas slender antennae, also more sparsely punctated, more glistening abdomen, of which the fifth free dor- sal Joint is scarcely longer than the fourth; among the r^loeest allied species furthermore identified especially by the rather coarse punctation of the head, and the posteriorly narrowing form of pronotum. -360- (Pa^e 212) Black, rather glistening, finely gray-haired; elytra and often also the abdominal tip brov.n; antennae brown or pitch-brown, their base, raoutfa- parts and le^s reddish-yellow. The forebody is extremely finely shagreened; the head a little narrow- er than pronotum, oval, with large, out not protruding eyes, convex, the sides with rather coarse and isolated punctation, et middle impunctate; (Page 213) the antennae quite robust, feebly thickened distally, their second and third joints elongate, about of same length, the fourth and fifth a little longer than broad, the following and the next-last a little increasingly feebly transverse (^ ) or about as long as broad (3*), distal joint oval, tip obtuse. The pronotum considerably narrower than elytra, anteriorly as broad as long, distinctly narrowing posteriorly, with anteriorly feebly rounded sides, slightly convex, with neither dense nor fine, but more or less distinct punctation, medial line often slightly grooved; elytra //^ longer than pronotum, somewhat more densely and finely punctated than this, densely grayish-glistening haired; abdomen glistening, its first three free dorsal joints with fine and scattered punctation, the two fol- lowing almost smooth and about of same length. On hind tarsi the claws are somewhat longer than in closely allied species of same size. L. 3.5- 4 mm. In the O the next-last ventral Joint of abdomen somewhat elongate and rounded off at tip; in the p posterior margin of same Joint slightly incurved at middle. -361- (Pa^'e 213) A strand species; very common especially on sandy beaches under sea- weed, distributed at our coasts, and at those of our neighbouring coun- tries. The rather coarse punctation which is found on the head of H. vestita, also occurs characteristically in H. atricilla and puncticeps, likewise in Aleochara ^qrisea, algarum and obscurella. and is seemingly character- istic for strand species, which live on sandy .ground. That the claws of hind tarsi in these and other strand species are ordinarily rather lonj and robust, may apparently be associated with their .habitat on sand and under seaweed, now and then subjected to bein^ washed away. 44. Subgenus Me^^ista Muls. et Rey. 121. H. graminicola )revh. (".ravh. Mon. 176; Erichs. Kaf. fflc. Br. I, 316; vJen. Spec. Staph. 81; Kraatz Ins. D. II, 212; Thomp. Skand. Col. Ill, 62; Sharp Pev. Erit. Horn. 137; wuls. et Pey Ere'vip. 1873, £92; ^anglb. Kaf. L'.. II, 170. - Var. brunneiaennls Thorns, "^kand. Col. Ill, 6E). A peculiar, black species with slender antennae and rather narrow pro- notum, distinguished and especially recognized by the scabrous-granulate elytra and other sex-characters of the ff . black, finely gray-haired, rather strongly glistening; elytra in the "o" dull, sometimes with feeble grayish-green reflection; antennae pitch black or pitchy brownish, often lighter at base, legs brownish-yellow with darker femora. The head (Fig. 79) is narrower than pronotum, roundly oval, witl- feeb- ly protruding eyes, very finely ind not densely punctated, in the j^ con- vex and often short grooved at middle. In tht <5^ flatly impresfed at middle; -568- (Page 213) the antennae rather long and slender, bristle-haired, scarcely thickened distally, their third joint a little longer than the second, the middle ones longer than broad, -(Page 214)- the next-last in the O at least as long as broad, in the o longer, the distal joint tapering; temples and ^enae marginate. Pronotum is considerably narrower than elytra, fully IZ/i times as broad as long, feebly or not narrowing posteriorly, but slightly rounded anteriorly, posteriorly more straight sides with singly outstanding bristles, slightly convex, very finely and not densely punc- tated, with a transverse fovea, and most often with a short, sometimes {o) longer and more distinct impression posteriorly before scutellumj the elytra '^''j longer than pronotum, jn the o with dense and rather fine scabrous punctation, in the o^ much coarser, nubby or granulate scabrous punctation and thereby dull. Abdomen strongly glistening, its first three free dorsal joints with fine and rather scattered, the fourth and fifth very sparse punctation, the sixth feebly ( jf } or more strongly (o) gran- ulate punctate; the fifth is a little longer than the fourth. L. 4-4. Emm. In the ^ the sixth free dorsal Joint of abdomen with rather dense and robust granulate punctation and dully glisteninj, the tip truncated, broad- ly emarginate and very finely serrate; the next-last ventral joint consi- derably prolonged, tapering, the tip Itself most often obtuse angularly emarginate (Fig. 80). In a variety, brunneipennis Thorns., the elytra are brown, antennal base, and legs yellow-rod or reddish yellow. Distributed in North and Middle Europe; in this country rather frequent .363- (Page 214) on damp ground, both in and outside of woods; var. brunneipennis is very rare. 45. Subgenus Lio'luta Thorns. 122. H. vicina Steph. (Steph. 111. Irit. V, 116; Sharp Pev. Brit. Horn. 133; Ganglb. Kaf. M. II, 172. - umbonata Erichs. Jen. Spec. Staph. 82; Kraatz, Ins. D. II, 209; Thorns. Skand. Col. Ill, 56; Muls. et Rey Brevip. 1873, 616). About of same size and form as graminicola, but a little more flatly convex and with somewhat shorter, less slender antennae, especially rec- ognized by the color of elytra and antennae, and by the peculiarities of the sex-characters of the 6 • (Page 215) Deeply black, finely haired, rather strongly glistening; elytra at middle brownish yellow, at base, suture and on sides black or brownish black; antennae and mouth-parts entirely black; legs bro'.\nlsh yellow with darker femora. The head is narrower than pronotum, roundly oval, with rather large, slightly protruding eyes; fine and very isolated punctatlon, smooth at middle, strongly glistening; the antennae rather slender, feebly thicken- ed dlstally, their second and third joints of same length, the fourth longer than broad, the following and the next-last Joints of same length and increasingly, feebly transverse, distal Joint as long as the two next- last joints together, taperlnj. Pronotum is considerably narrower than elytra, //J* broader than long, with smoothly rounded sides, end not nar- rowing posteriorly, slightly cotrvex, with fine and isolated punctatlon, -364- (Page 215) the surface feebly shagreened, most often with a feeble transverse fovea posteriorly before scutellum, and sometimes with a feeble, flat impres- sion at middle; elytra '/i# longer than pronotum, finely and rather densely punctated; abdomen strongly glistening, its first three free dorsal Joints vvith fine and very scattered, the two following very fine and simple punc- tation, about of same length. L. 3.5-4 mm. In the 5^ the first free dorsal joint of abdomen with a small sharp granule at middle (Fig. 81), which occasionally also is found in the^; the sixth is strongly granulate-punctate, the surface densely shagreened dully glistening, its posterior margin obtuse-angularly truncated, with a small, sometimes indistinct fold at each corner. In the o the next- last ventral joint feebly rounded or slightly incurved. Distributed throughout the greater part of Europe; in Lenmark it is rather rare and local, on damp ground, also on the strand under seaweed. 122 a. H. microptera Thorns. (Thorns. Sk^-nd. :;ol. IX, 256; Sanglb. Kaf. M. II, 172.- Letzneri Epp. Stett. 2nt. Ztg. 1880, 285). Ir appearance most like ^ranii;era, in tne form of sex-characters of the 3^ agreeing more with vicina, from both of these and the rest of our Liogluta species mainly separated by proportionately short elytra, only as long as pronotum. Black, glistening, very finely haired; pronotum often brownish-black; elytra orown or yellowish-brown; antennae black or brownish, often with reddish oase^ legs yellow. -365- (Page 216) The head strongly glistenin;, narrower than pronotum, rounded, with small, slightly protruding eyes, scattered and very fine punctation, at middle indistinctly punctate; antennae rather long, feebly thickened dis- tally, their third joint fully as long as the second, the fourth longer than broad, the middle ones feebly, the next-last more distinctly trans- verse, distal Joint as long as the tvko preceding joints together, obtuee- ly tapering. Pronotum very little narrower than elytra, anteriorly round- ded and posteriorly with rounded off hind corners, slightly convex, scat- tered and very fine or indistinct punctation, the surface very feebly she- greened, at middle posteriorly sometimes with a suggested (o) or with two more distinct C^] longitudinal impressions, and before scutellum with a feeble transverse fovea. The elytra are shorter than in any other related species, scarcely longer than pronotum, very finely and not densely punc'« tated, the surface feebly shagreened, sometimes with an oblique impressi- on at middle posteriorly; abdomen evenly broad or somewhat broadened pos- teriorly, with very fine and scattered, posteriorly sparse punctation. L. 3.5-4 mm. As in vicina the first free dorsal joint of abdomen in the ff with e small granule at middle, and the sixth with more or less distinct granu- late punctation, at tip broadly obtuse angularly truncated. The next-last ventral Joint at tip slightly emarglnate. An alpine and northern species, very rare in the mountainous regions of Middle Europe and Sweden (Skaane, Stokholm} also Finland; in Denmark heretofore found only singly at Silkeborg (10. 1904 Esb. Petersen) and -36B- (Page 216) at Tisvilde (15. 5. 1910 Sngelhart). Like the closely allied species it lives on damp, dark ground under moss, leaves, offal from reeds and the like. A very closely allied species, H. sexnotata Thorns. ( trigemina Spp. ) with lighter antennal base and (apparently) very similar sex-characters in the ^ , is found in Finland and northern Norway, also found in Skaune (Thorns. ) . 123. n. oblonga iir. (2richs. ^en. Spec. Staph. 101; Kraatz Ins. C. II, 205; Janglb. Kaf. M. II, 171, - ablon,::iuscula Sharp Rev. Brit. Horn. 130). Closely allied to vicina, but with more unicolorous, brown elytra, more coarsely punctated head and other sex-characters; somewhat variable. Deeply black, rather glistening, finely haired; elytra brown or yel- lowish-brown; antennae and mouth-parts entirely black or sometimes pitchy brown; legs reddish or brownish yellow, often with a little darker femora. Head, pronotum and elytra particularly finely shagreened in surface; the head narrower than pronotum, roundly-oval, with scarcely protruding eyes, in the d^ flatly depressed and rather coarsely, but not deeply, nor densely punctated, in the ^ convex and with finer punctation; antennae rather robust, however not strongly thickened toward tip, their third joint as long as the second, in the o a little more robust than in the $ , the fourth longer than broad, the middle and next-last ones about of same ^ (Paje 217) — length, and these feebly transverse, distal joint twice as lonj as the tenth, tapering. Pronotum is narrower than elytra, ''/^ broader than lon^. .3*7- (Page 217) with smoothly rounded sides, not narrowing posteriorly, slightly convex, finely, but not densely punctated, in the S^ often with a broad, flat long- itudinal impression at middle posteriorly; elytra only a little longer than pronotum, finely and not densely punctated; abdomen anteriorly with fine and sparse, posteriorly simple punctation; its fourth and fifth free dorsal joint of same length. L. 3.5-4 mm. In the 3' the sixth free dorsal joint of abdomen posteriorly evenly truncated or feebly rounded and in margin indistinctly undulate-serrate. The next-last ventral joint is a little longer than in the j^ and rounded off at tip. Distributed in Middle Europe, England and Finland; in Denmark rather common on damp forest, meadov. and marshy ground under leaves and other plant cover, also in alluvium at the brim of lakes and brooks. Light, fully colored specimens with entirely brown antennae occur, but are rarer. 124. H. nitidula Kr. (Kraatz Ins. D. II, 211; Thorns. Skand. Col. Ill, 64; Sharp Pev. Brit. Horn. 129; Wuls. et Fey Bre'vip. 1873, 620; Janglb. Kaf. M. II, 171). Very closely allied to, and often so much like oblonga, that the spe- cific differences are difficult to prove. In well marked forms of nitidula the head and pronotum are more strongly glistening than in oblongo; the head with finer punctation and not flatly depressed in the O , antennae more slender and longer, pronotum more convex and a little longer, elytra more densely punctated; as a rule somewhat larger. Black, strongly -jlisteninj, finely haired; elytra pitch-brown or yel- lowish-brown; antennae unicolorous black or brownish at base; legs brown- ish-yellow, femora often darker. -36fl- (Pa^e 217) Head and pronotum not shagreened and therefore strongly glistening'; the head narrower than pronot'im, roundly-oval, with scarcely protruding ayes, convex, sparsely and very finely punctated; antennae rather long and slender, hardly thickened distally, their second and third Joints elongate, of same length, the middle ones (4-7) longer than broad, the next-last about as broad as long, distal joint as long as the two pre- ceding joints together, tapering. Pronotum a little narrower than elytra, somewhat broader than long, not narrowing posteriorly, with smoothly rounded sides, convex, finely or very finely and not densely punctated, sometimes with a feeble transverse fovea posteriorly before scutellum; elytra a little longer than pronotum, finely and densely punctated; ab- dominal first three free dorsal .joints with fine and scattered, the t» o following with simple punctation, of same length. L. 4-4.5 mm. In the o the abdominal sex-characters same as in oblango, but most often less distinctly developed. (Page 218) Distributed like oblongo and often together with same, but at most places in this country more rare; sometimes found numerously with the black ant, Lasius fuli^^inosus, however not inside the abode, but around the base of it in soil and under leaves together with I'.yrmedonia laticollis and other myrmecophile starhyllnids. It Is found in Skaane (Thorns.). 125. li. hjpnorum ^Ciesw. (Kiesenw. Stett. Ent. Zeltg. 165C, 219; Kraatz Ins. C, II, 203; Thorns. Skand. Col, IX, 265; Muls. at Hey Br^vip. 1873, 609; langlb. Kaf. M. II, 174.- eilvlcola Fuss, Sharp Pev. Brit. Horn. 132). -360- (Page 218) A considerable, finely glistening species, especially distinguished by robust antennae, of which the distal joint is peculiarly thick and Ion?. Black, strongly glistening, finely haired; elytra clear reddish-brovn or yellowish-brown, at base around scutellum often darker, sometimes en- tirely pitch-brown; antennae brownish, their base, mouth-parts and legs reddish-yellow. In light animals the abdominal tip is most often brownish. The head is considerably narrower than pronotum, roundly-oval, with not protruding eyes, very finely and sparsely punctated; antennae long, robust, distally peculiarly strongly, but gradually thickened, their third joint a little longer than the second, the fourth most often a little long- er than broad, the middle and next-last joints increasingly broader, so that these become distinctly transverse; distal joint unusually large and robust, longer than the two preceding joints together, tapering. Prono- tum a little narrower than elytra, about /,^ broader than long, anteriorly scarcely as broad as posteriorly, with feebly rounded side?, slightly con- vex, very finely and not densely punctated and with a feeble transverse impression posteriorly before the scutellum, and a more or less distinct longitudinal groove at middle-line. The elytra a little longer than prono- tum, finely and densely punctated, glistening, gray-helred. The first three free dorsal joints of abdomen finely and not densely punctated, the two following almost smooth, of same length. L. 4-4. fj mm. In the ^ the next-last ventrnl joint of abdomen somewhat longer and more tapering than in the Q , rounded off at tip. -S7C- (Page 218) Distributed in North and Middle Europe; in this country very rare and local, under leaves on wet forest (ground and in alluvium (Sk/tfrping Holme, and Staovlund at Aalbor.;; BjiJllemosen at Copenhagen; on the strand below Hammeren, Bornholm, et al.). 126. H. ^'rani-:era Kiesw. (Kiesenw. Stett. Ent. Ztg. 185C, 218; Kraatz. Ins. D. II, 207; 5anglb. Kaf. M. II, 173. - crassicornis (Jyllh. Thorns. Skand. Col. Ill, 56; Sharp Rev. Brit. Horn. 135; Muls. et Ray Brevip. 1873, 600). Closely allied ta the following species, pagane , but somewhat smaller and darker of color, also with shorter antennae, of which the next-last joints, are a little broader than long, further recognized by the sex- characters of the o^ . (Page 219) Black or pitch-black, glistening, finely haired; pronotum sometimes pitchy brownish; elytra brownish yellov;, darkly shaded around scutellum and on the sides; tip of abdomen and posterior margins of its joints some- times brownish; antennae pitch-biaok or pitch-brown with reddish -ye How base; legs reddish yellow. The head, pronotum and elytra very finely shagreened in surface; the head more glistening than pronotum, narrower than this, roundly-oval, with scarcely protrudinj eyes, rather coarse, very flat and not dense punctation; antennae rather long, distinctly and smoothly thickened dls- tally, their second fir.a third joints elongate and the third longer then the second, the middle ones (4-6) longer than broad, the nexi-last a little broader than long, distal Joint ne long as the two preceding Joints to- -371- (Page 219) ,2;ether, tapering. Pronotum is narrower than elytra, //^broader than lon^, not narrowing posteriorly, vith anteriorly feebly rounded, posteriorly more straight sides, slightly or flatly convez, with rather flat and not dense punctation, but distinctly shagreened in surface, most often with two more or less distinct larger punctures back of each other on each side of the middle, and in the d^ as a rule N'lith a flat, sometimes double longitudinal impression at middle posteriorly. Elytra a little longer than pronotum, finely and rather densely punctated. The first three free dor- sal joints of abdomen with scattered and vei-y fine, the two following with sparse or simple punctation and of same length. L. 3.5-4 mm. In the anglb. Kaf. M. II, 233). - Immunlta £rlchs. len. Spec. Staph. 916j Thorns. Skand. Col. Ill, 10) Closely allied to the species of subgenus Aloconota, and like these with immarginate temples and genae, but v.ithout sex-characters in the & on the fifth and sixth free dorsal joints of abdomen; in appearance not unlike H. elongatula, from vhlch it however without difficulty can be sep- arated by the body's characteristic, fine silky-glistening, gray hair ves- titure, more robust antennae, the finer and somewhat denser punctation of abdomen, also by the longer first joint of the hind tarsi. Black or pitch-black, very finely and rather densely gpay-haired, silky modulated gloss; elytra pitch-brown or yellowish-brown; abdominal tip some- times Crownish; antennae and mouth-parts brownish-red or brown; leg& brown- ish yellow. Head, pronotura and elytra particularly finely shagreened in surface and threfore with modulated shine; the head rather large, a little narrow',- er than pronotum, rounded, with feebly protruding eyes, indistinctly punc- tated; antennae ^uite robust, distinctly thickened distally, their second and third Joints elongate, of same length, the middle ones as long as broad, the next-last feebly transverse, distal joint as long as the two preceding joints together, obtuse tip. Pronotum narrower than elytra, about as long as .broad, feebly narrowing posteriorly, with anteriorly slightly rounded, posteriorly more straight sides, feebly convex, especially finely And -37&- (Page 223) densely punctated, most often with a more or less distinct, broad and flat longitudinal impression at middle posteriorly; the elytra a little longer than pronotum, very finely and densely punctated. The first three free dorsal joints of abdomen very finely end densely punctated, the fourth a little less densely, the fifth almost impunctate, as long as the fourth. The first Joint of hind tarsi somewhat elongate and longer than the second. L. 3-3.5 ?nm. (Page 224) In the anglb. Kaf. M. II, 234). Of same size as insec ta and somewhat like this and pavens, but v»ith temples and genae marginate, more slender antennao, pronotun. scarcely nar- rowing posteriorly, and not grooved at mlddl-^-line; also recognized by the abdominal punctation, and the sex-characters of th-^ a . Pitch-black, pitchy \jTO*n or reddish-brown, very finely and rather dense- ly haired, moderatsly glistening; elytra, tip of abf'omen and posterior margins of Its joints yellowieh-t-rown; antennae redciish-brown, thejr base and the legs reddish-yellow. -360- (Page ,?24) Head, pronotum and elytra extremely finely dnd densely shagreened in the surface and therefore with feeble shine; the head (Fi^.P-o) consider- ably narrower than prorotum, oval and broadest across the large, feebly protrudln'^ eyes, particularly finely and densely punctated, convex, at middle most often short grooved; the antennae long and slender, scarce- ly thickened distally, their first three joints very elongate and about of . same length, the middle ones (4-8) diptinctly longer than broad, the two next-last ones scarcely as broad as long, distal Joint nearly as long as the two preceding joints together, tapering. Pronotum much narrower than elytra, as broad as long, hardly narrowing posteriorly, with anteri- orly slightly rounded, posteriorly more straight sides, feebly convex, particularly finely and very densely punctated, with a small transverse fovea posteriorly before the scutellum; ely tr a //^ longer than pronotum, very finely and densely punctated. The first four free dorsal joints of abdomen especially finely and very densely punctated, the surface dense- ly shagretned, feebly glistening, densely gray-htiired , the fifth vith simple punctation less densely haired and more glistening, as long as the fourth. First joint of hind tarsi a little longer then the second. L. ■i-4.5mm. (Page 225) In the 5' the fifth free dorsal Joint of abdomen at mldile with a small,, sharp carina, posterior margin of the sixth with six or eight small teeth, of which the two middle ones often are a little larger than the rest end more obtuse, the next-last ventral joint is rounded off at tip. (f'ig.eea). Distributed in North and Middle Liurope; in Denmark very local and rare, -381- (Page 225) heretofore only found here and there in 'Zealand (Damhusmosen near Copen- hagen, Frederiksdal, Hilleri^d, Lethrabort;, Lellinge) and at Odense. 49. Subgenus Hydro smecta Thorns. 133. H. lon.::ula Reer. (Heer.Faun. Kelv. 234; Thorns. Skand. Col. Ill, 13; Sharp Fev. Brit. Horn. 105; (Janglb. Kaf. J.:. II, 232. - thinobioides Kraatz Ins. D. II, 228; Muls. et Rey Brevip. 1875, 261). A very small, narrow, evenly broad and somewhat flatly depressed spe- cies with lon^;, slender antennae, and extremely finely and very densely punatated abdomen; from E. vilis, which it somewhat resembles, it is par- ticularly separated by finer antennae, larger head and longer elytra.. Black, very finely 6'ray-haired, feebly or dully glistening; elytra most often brownish; antennae and maxillary palpi pitch-brown or brown with a little lighter base; the legs brownish yellow, most often with darker femora. The head js large, about as broad as pronotum, with rather large, scarcely protruding eyes, and posteriorly not narrowing temples, extre- mely fine and very dense punctation, and with a more or less distinct fovea or groove at middle; the antennae much longer than head and pro- notum together, fine, filiform, their third Joint considerably shorter than the second, the middle and next-last ones all e little longer than broad, distal joint oval, fully as long as the tenth. Pronotum a little narrower than elytra, as long as broad, scarcely narrowing posteriorly, and with anteriorly very feebly rounded, posteriorly straight sides, ex- tremely finely and densely punctated, and with a flat longitudinal im- -381- (Pa^e 225) pression at middle; elytra I'/i times as long as pronotum and punctated like this; abdomen all over with extremely fine and very dense puncta- tion, dull, the fifth free dorsal joint much lonjjer than the fourth. The first four joints of hina tarsi are all eo^ually short. L. 2-2.5 mm. In the 3' the impressions on head and pronotum are more distinct than in the o and the next-last ventral joint of abdomen slightly prolonged and rounded off at tip. Distributed in Middle Europe and England, also found in Skaane, on sandy river and lake shores; in this country found only on the sandy strand at Jedser under seaweed (Fabr. Ten^nagel) and numerously at Eerom lake In alluvium (&/1910 ana 8/ 1911 author). Very closely allied to H. loR,'Tula, and about of same form and size is H. fraianglb. Kaf. U. II. 238). A rather peculiar, somewhat fusiform tpecies, identifiable especial- ly by the body's Oxypoda-fine punctation and silky glistening heir vesti- ture, a small head, structure of antennae and pronotum, also that only -383- (Page 226) the first free abdominal joint is distinctly depressed at base, and that the first joint of hind tarsi is proportionately lon^. In appearance it somewhat resembles an Oxypoda. Black, particularly finely, rather densely haired, and with modulated silky gloss; elytra brown, most often darker at base; antennae and max- illary palpi pitch-black or pitch-brown with slightly lighter base; leg; light reddish -ye How. The heaa is rather small, considerably narrower th&n pronotum, roundly oval, with feebly protruding eyes, convex, very finely and rather densely punctated, with a small, in the o distinct, in the rt indistinct fovea at middle; antennae long , slender, very feebly thickened distally, their third joint almost as long as the second, tne fourth shorter than the fifth, the middle ones longer than broad, the next-last as broad as long ($ ) or longer (w), distal joint oval, hardly twice as long as the tenth. Pronotum is narrower than elytra, about as uroad as lonj, with slightly rounded sides and scarcely narrowing posteriorly, convex, very densely and finely punctated, without medial groove, but with a small, often very feeble transverse fovea posteriorly before scutellum; the elytra a little longer than pronotum, -* little more densely and distinctly punctated than this; abdomen somewhat tapering posteriorly and right to the tip with especially fine, smooth and very dense punctatlon; only its first free dorsal joint is distinctly transverse-grooved depressed at base, and the fifth is much longer than the fourth. The first two joints of hind tai si are rather elongate and the first auout ij limes as long as the second. L. 2.5-3 mm. -384- (Page 226) In the O the next-last ventral joint of abdomen somewhat elongated and rounded off at tip, in the ^ distinctly emarginate. On meadov/ and marshy ground, distributed throughout the greater part of Europe; rather rare in this country, most often found in North Sjaelland. (Page 227) 51. Subgenus Dacrila Kuls. et Rey. 135. H. fallax Kraatz. (Kraatz Ins. D. II, 227; Sharp Fev. Erit. Hom. 116; Muls. et Rey Bre- vin. 1875, 189; Janglb. Kaf. U.. II, 236). A peculiar species, rather evenly broad, with an Oxypoda-like fine, dense punctation and silky-jlistening gray hair-vesti ture, only the first free dorsal Joint of abdomen distinctly depressed at base; furthermore recognized by the structure of antennae and pronotum, and the proportio- nately long first joint of hind tarsi. Black, dully glistening, densely silky gray-haired; elytra brown or yellowish-brown; antennae and maxillary palpi rust colored, the former with lighter base; legs light reddish-yellow. The entire dorsum of the body with extremely fine and dense shagreen- like punctation and due to this and in connection with the dense gray hair vestiture of dull gloss; the head very little narrower than prono- tum, rather large, roundly widened back of the feebly protruding eyes; antennae rather slender, scarcely thickened distally, their third joint distinctly shorter than the second, the middle ones considerably, the next- last a little longer than broad, the distal Joint rather long, abruptly tapering from the middle. Pronotum about as broai as elytra, a little -585- (Ps^e 227) broader than long, scarcely narrowing posteriorly, with anteriorly very feebly rounded, posteriorly more straight sides, slightly convex, with a small ' tran aver 8