IMAGE EVALUATION TEST TARGET (MT-3) k ^ ?Ss^^ <. signifie "A SUIVRE", le symbole V signifie "FIN". Maps, plates, charts, etc., may be filmed at different reduction ratios. Those too large to be entirely included in one exposure are filmed beginning in the upper left hand corner, left to right and top to bottom, as many frames as required. The following diagrams illustrate the method: Les cartes, planches, tableaux, etc., peuvent Atre film^s A des taux de reduction diff6rents. Lorsque le document est trop grand pour dtre reproduit en un soul clichi, il est film^ A partir de Tangle supdrieur gauche, de gauche d droite, et de haut en bas, en prenant ie nombre d'images ndcessaire. Les diagrammes suivants iilustrent la mithode. rata i elure. 3 ax 1 2 3 1 2 3 4 5 6 m^^a ft .HE, 'J M'' n\ k ,,^l ■^%^ ,f \ % 1^' SMITHSONIAN INSTITUTION. UNITED STx\:'ril,S NATIONAL MUSEUM. //^ 4'^ BULLETIN :"Vi Ol-' THF UNriED STATES NATIONAL MUSEUM. C- w m ISTo. 48. CONTRIBUTION TOWAl/D A MONOGJIAPH OF THE INSECTS OF THE LEPIDOPl'EROUS FAMILY NO(!TUIDi: OF BOREAL NORTH AMERICA.-A REl^SION OF THE DELTOID MOTHS. ilY % i] 111 J()h:n^ 15. s:\nTn, sc. d., Professor of Kiilomolotiy in .'{iil(jcra Collcoe. ^LIMAKYv " NAKGNAL-MUSEtTM OF CANADA WASIIINCJTOX: GrOVKiiiJiViiiJVJT IMMNTINU OFFICE. 18U5. V)' i^o^'^ ADYEETISEMEKT, Tliis Avork (Bulletin No. 48) is one of a series of papers intended to illustrate the collections belonging to the LTuited States, and constitut- ing the National Museum, of which the Smithsonian Institution was placed in charge by the act of Congress of August 10, 184G. Tlie publications of the National Museum consist of two series — the Bulletins, of which this is No. 48, in continuous series, and the Proceed- ings, of Miiich tlie seventeenth volume is now in press. A small edition of each paper in the Proceedings is distributed in pamphlet form to specialists in advance of the publication of the bound volume. The Bulletins of the National ^Fuseum, the publication of which was comnien(;ed in 1875, consist of elaborate papers based upon the collec- tions of the Museum, reports of expeditions, etc., Avhile the Proceed- ings facilitate the prompt i>ubli(;ution of freshly-acijuired facts relating to biology, anthropology, and geology, descriptions of restricted groups of animals aiul plants, the discussion of particular questions relative to the synonymy of species, and the diaries of minor expeditions. Other papers, of more general popular interest, are printed in the Ap])endix to the Annual Beport. Full lists of the publications of the Museum maybe found in the cur- rent catalogues of the publications of the Smithsonian Institution. Papers intended for publication in the Proceedings and Bulletins of the National Museum are referred to the Committee on Publications, composed as follows: F. W. True (chairman), E. Edward Earll (editor), T. 11. Bean, Otis T. Mason, Leonhard Stejneger, and Lester F. Ward. S. P. Langley, Secretary of the Stnithsonian TnstitKtion. Washington, D. C, October 8, 1894. II TBI CONTRIBCTIONS TOWARD A MONOGRAPH OB- THE INSECTS OF THE LEPIDOPTEROUS FAMILY NOCTUIDI OP BOREAL NORTH AMERICA. A REVISION OF THE DELTOID MOTHS. BY JOHN B. SMITH, Sc. D., Professor of Entomology in Itutgera College. «♦> WASHINGTON: GOVERNMENT PRINTING OFFICE. 1895. I TABLE OF COXTEXT:^ I'apo. Introductory roniarlvs and definitions 1-3 Genera wrongly classed a?* Deltoids 3, -t Division into tribes 4 Antennal luicnliarities 4-6 Sexual niodilication of male legs 6-8 Genera discussed lt-13 Acknowledgments 13 Synopsis of tribes and genera 13. 14 Genn8i;pi/,Ki'xi.s la-27 characters and scbenio of division - 15-17 analysis of the sp jcies 17 descriptions of tl e species 17-27 Genus Zanclognatha - 27-45 charactera and Hchcme of division 27-31 analysis of tin? s])ecies 31, 32 descriptions of the species 32-45 Genus Hormisa 45-50 characters and scheme of division 45, 46 analysis of the s])ecics 46 descriptions of tlie species 46-50 Genus Piiii.omktha 50-54 characters of the genus and species 5l\ 51 analysis of the species 51 descriptions of the sjjecies : . 51-51 Genus Oiivtolita 51-57 characters of the genus and species 54, 55 analysis of the species 55 descriptions of the species 55-57 Geinis Blki'tina 57-(il characters of the genus and species 57, 58 analvsis (d' the a]iecics 58 tinus of the sjiecies 63-65 Genus Kkm a 6^-76 characters and scheme of division 65-68 analysis of the si)ecies 68 descriptions of the species 68-76 Genus Hyi'kmi.a 76-78 characters of the genus 76, 77 description of the species 77, 78 ^^^0 VI CONTENTS. Page. Genus Hktkrooramma 78-80 characters of tho j^enus 78, 79 description of the specioa 79,80 Genus Gahkhasa 80-82 characters of tho ^oniis 80, 81 description of the species 81, 82 Genus 1 )krckt18 82-84 characters of the genus 82,83 descriptions of the species 83, 84 Genus 1'altiiis 84-88 characters of the genus and species 84-86 descriptions of the species 86-88 OenusCAPis 88,89 charai;ters of the genus 88 description of the species 88, 89 Genus Saua 89-91 chanicters of tlio genus 89, 90 analysis of the species 90 descriptions of the species 90, 91 Genus HoMoi.ocn a 91-109 characters and scheme of division 91-94 analysis of the species 94, 95 .lescriptiou of tho species 95-109 Genus Lomanai.tks 109, 110 characters of the genus 109 description of the si»ecie8 109, 110 Genus Platiiypkna 110-112 ciiaracters of the genus 110, 111 descriptions of the species 111-112 Genus Hypexa 112-118 characters and scheme of division 112-114 analysis of the species 114 descriptions of the species 114-118 Sjnonymical list of genera and species , 119, 120 Explanation of plates 121-126 General Index , 127-129 78-80 78,79 79,80 80-82 80,81 81,8a 82-81 82, h;{ 8:5, 84 84-88 84-86 86-88 88, 89 88 88.89 89-91 89,90 90 90,91 91-109 91-94 94,95 95-109 109, 110 109 109, 110 110-112 110, 111 111-112 112-118 112-114 114 114-118 119, 120 121-126 127-129 CUNTRIHIITIONS TOW.VKI) A MONOIiKAl'll OV TIIH INSKCTS i)V THE LliriDOl'. TKKdIilS l''AMII;Y NOOTUID.K Ob' liOliHAL NORTH AMKRICA. A IIKVISION OV THK DKLTOll) MOTliS. H.v .loiiN IV Smith, .Sc. I).. I'roJ'exHor iif Kniomoloijii in Ittilijcru I'ltUfij*', HiuU'r the }<<'ii('iiil tonii " Deltoids'' there iue iisuiilly grouped in livsts, ciiialoju'iies, iiiid coMectioiis the moths of ii series of species and geiieni wliich have u soinewliat octiiiche. It is possible that sub- family rank at least should be accorded the series as liore restricted; but this is not projiosed at i»resent, since within the limits of the series there are two if not three very distinct types or tribes, of which JIcli((,JIermini<(, ami /li/pviKi are, i-espe(;tiv(ly, typical. In a j;(!neral way the species are charai'teiized by unusually lonjy jmjjH, which are either slender, closely scaled andcurved upward and backward, sickle like, often far exceeding the head, or they are directed forward ol)li(iii(dy or strai,yht, clothed with upright s(;a!es, the se(!Oiid joint longest, the third always set into the second so as to point ui)ward. In the latter case tin; palpi with the pointed frontal tuft form a beak or snout snnilar to that in the Crambida- among the Pyralids. These elongated palpi are not peculiar to this family among the Noctuids; but there are very tew genera so constructed in other series, and these may be, in most cases, ditterentiated without trouble. Among the speities in winch the palpi form a snout, being obliciue or straight, with elongated sec(Mul Joint, none are Deltoids that have tlu^ terminal joint drooping or set in at a downward angle with the second joint. Nor do I include any species in which the se(!ond joint is closely scaled above, the long vestiture directed downward, so that the apparent enlarge- ment of the joint is formed by scales directed and extending below the joint. This at first se<'ms ai slight character; but it will assume impor- tance when the character of the palpi is closely studied, and when we consider that it is really reversing the position of a joint. Of the forms ;-8(;l>_Xo. 48 1 UUI.LI.riN iH, IINITKD STATK8 NATIONAL MUSKUM. «:» in wliicli till* palpi iiiv mIoihIci, cnrviiip' iii)\viii(l iuid c.xcet'dinjf flic lirad, iKiiic ait'. Deltoids in wliicli the two pairs of wiii^s are similar in si/o anil niacuiation or liavc a ^^roinctrirorni oriianicntaiion exteiidiiij;' on botli win^s. I'lirtiier, with the e\eei»tion of llvliu, all Deltoids with l»alpi of the (rhaiactcr last desi-ribed have the lore leys of the inalc! niodilied, ilothed with tufts or pencils of hair, and always with aborted tibia. With tli»! exceptions stated, the series does not dill'cr from other Noctiiids in any essential features; yet it will be worth wlule to mention some of the ot her main charactcMs. TIm' hitiuJ is always small, yet never retracted, and ottcii iiriMiiineiit. In iKtiie of our species is the ton^U' al)orte(l or even weak, so all of them are capable of feediii};". The eyt's are usually prominent, semifjlobose, thouf^h never \-ery lai};*'; always naked, thoiij;h in some j;enera — oaly one in our fauna — iVinged with hairy lashes, Oceljj are present in all our forms, situated clos«', to the c(;mi)ound eye, but distinctly variable in their positimi relative! to the posterioi" nnuj-in of the eye. In the llcrminiini they are almost as far back as possible, while in IIyi»eiiiiii they are ab..ost in the middle of the crown. Tiic|)oint of insertion of the aiitenme varies somewhat; but as in the inatler of the ocelli our material is not yet sullicient to enable us to niak«>! studies f the secondaries nuu'c than a little, and it as >are!\ fails to reach that p;r)int. Tuttings are only found in the Ilyp<'nini, where, in most of the ajjecies, tlieic^ is a series of little round, truncirted, dorsal tults, composed of upright s(!ales and very easily ruhbed off The legs ar(> iisuall> long and slender, though hardly weak. The thoracic structure tends to an elongation of the |»arts, the coxa* being in all eases well developed. The fore legs are short, the tibia' usually short in comparison with the fcmni ; but in the males of the !'er- miiiiini the modifications are \ery curious and will be again referred to. The middle and posterior legs are longer, more as in the Pyralids, with extremely long and une(|ual til>ial spurs, terminal on the uk jii, terminal and at ai)ical third on tlic ])osterior pair. The legs are closely scaled as a rule, but in some of the male Ilyiicnini they, as well as the entire thoracic ])arts, become hairy or even woolly. A UKVISIUN Ol' THIO UKl/IOIU MlJlUS — 8MITII. on V i Tlic \viii;iH arc usually larjo:*', but rarely frail, tin- two paii's propor- tiuiiatc, or tlir posterior enl.U'nin;;' at tlie «'\|iense of tlu' aiitericu', as in I lie typical Ujijhiki. VVc liiive a predoniiiiaiM-e ol" pale yellowisli oi- lut<>ou8 tints in the llerniiniini, and of daiU or dull brown hues, sonu;- tiuu^s with <'ontrastin}; whites, and with a tencb'ne.N to elevateil black .scales in the llypeidni. Thooriuinientation is usually simple, frequently eoiisistiuy' only of single transxerse lines o\er a uniform bast^; but in sonu^sjM'cies variation appaiently runs riot. The secondaries i>ie always siniply marked, usually nearly immaculate or with a va;^U(; uieiliau and extra median line, luiver with any strikiuj; ornainenta; ion or with a (;outinuati(Ui of that of the primaries. The venation is normal iii most instanees; that is to say, iu the primaries the ueeessory eell is jjvescMit, veiu /) is part of tho series from the end of tlu' median \eiii, ami tluu'e is a siuf^h internal vein, which is not, ncy ton loss of the accessory cell, and this increases iu the aberrant lorms, in which the wiii<>s are augulated, which lack it as a rule. This is accomi>anied by a variation. iu the arrauj-emeut of tbe subcostal series of veins, and we m;iy have (», a stalk beaiinj; 7, S, and !), and 10 from laactically the same jtoiut at the end of the subcostal, or 10 may iirist; from the stalk bearinji' 7 toO, while in rare instances 10 arises more basally .md from the subcostal before the end. These variations are usually of jicneric value; but they must be cautiously used, for o(H;asioua I ly the accessory cell may be i)reseiit or absent within the limits of the same yeiius. 1 have excluded from this siuies the jienera I'scinlorffi/ia and liinild. rsru(lor{/i/i((, iu my oi)iniou, has no real l)<'ltoid allinities. Tlu^ snout- like palpi and the pectinated male antenna' arc the only features that can be relied upon; but those same characters occur iu the little aber- rant series of which Pliiprosojuis and Eiwahiptcra form a part, and the anttmnaj of the former and ])ali)i of the latter mark the sum of the Deltoid characters. The palpi have the last Joint drooi)in.('ment of tlu^ secoml joint is by downward vestitiire, exactly as .in others of the series referred to. Jiivula is more dillicult to deal with, Ix'cause of its venation, 't lacks the accessory cell, and vein 10 of the inimaries arises from the subcostal precisely as in some of the true J)eltoid yenera; but on tlu^ other hand vein o of the secondaries is decidedly weak and is lost basally in the texture of the winj;' or arises from a cross vein so weak that no trace of it remains in the mounted winj;-, and that (juite near to the middle of the (;ell, though nearer to I than to G, thus dilferinj;- from all the others referred to this group, and agreeinj;- with the char- 4 Bri.LETIN IS, UNITKl) STA'I KS NATIONAL MUSEUM. acters of ilieTrirulii'. The palpi also agree with the series of wbieh y' iiioUta, Cilia, and Eiiadi/ptcra form a part, and tiiere its relatives must l»e sought. Finally the early stages are aberrant. The larva, a«!cord- inj', to (Inence, lives on low i)lauts in moist localities; has sixteen feet, i(.!sen:bles those of I'tcrophora in appearance, has a large, flattened hear., is sluggish and when transforming into a pupa fastens itself by the ereniaster as well as a girth in a horizontal position. This pupa has an obtuse head a membraneous (vxtension, forming a.cover in which lies a pencil of long, yellow, Iniir-like scales, which is capable of expansion at tlu^ will of the insect. A more i)articular descrijition of these pencils is given later on, but they are in all essen- ti:(l features like those on the foi'c legs of other genera, and there are the same l.a'ge sensory pits that are found elsewhere in association with these tuttings or pencils. The antenna' in the lleiininii'ii are always distinguished in some way in the male. In the tribe as a whole the front of the head is quite wide, and the antennal foveas are sitiuvted well nj) on the vertex, close to the compound eye, thus well separated at base. In iheir simplest structure they have the Joi'its with moderate latesal bristles, /:s^' A REVISION OF THK DEI/rOIl) MOTHS S?,IIT1I. 5 but iKM^ompaniod silso in every cnse witli little ttilts of cilia' aiisinj;' li'oiii sniai' tubercles set inlo scusory pits of the most diverse cliaraeter and varyiii,i; f^ieatly in nui!il)er. Often tlie Joints are clothed with seales w Inch are somewhat elevated at tij* and so arranged as to nii.ke them seem serrated oi' marked at the edges, an appearance not borne out by the Joints themselves when denuded. The bristles become gra(biall> longer, and are then reinforced by small pi-ocesses or teeth which are pitted and give rise to sensory hairs. Usually there are tulsercles also, oi' little |)egs set in large pits, and from these arise single: hairs or litthi tufts. The bristles gradually change lo i)ectinations, long or short, never more than one to each side of each joint, and these in turn are furnished with lateral ciliations, regular or irregular. Some- times there is a stout bristle inserted near the tip of the pectination, in a deep i)it, a b^tle protuberance on the biiuufn giving additional su])port. There is also considerable variation in the length of the pectinations, and as they increase in length they usually Deeome less robusi. Where they are short and stout additional tubercles or pits with tufts or single hairs become more numerous. In addition to these normal structures of the antenna' there are others that are decidedly unusual, always ]»hiced at about one-third from the base. This abnormity may consist of a mere thiekening of the scaly (tlothing. the individual scales becoming larger in every direction, and they may or may not «'ov(!r a slightly ei'.larged joint or two. Sometimes beiu'ath the tuft of scales one, two, or three joints will have, in lieu of 'ordiiuivy pectinations, stout, short, pointed, straight or curved, brown, corneous processes, two of which are usually i'ontiguous at tip, so as to seem under a low ])owcr hand lens the point of a single ])rocess. Where such processes oc<;ur tlie Joiins are often considerably broader ai.d sliorter and sometimes have 'iiimerous pittings with or witlnuit bristles, hairs, or pegs. In sixth cases, also, the i>ectinations nient in Zancli)(iniiflt((, and arc always associated with a pectinat«'d or strongly bristled antenna, and with strongly tufted anterior legs. Associated al.so with the modilicationsof the Joints there is a greater or less mai'ked change in the continuity of the antenna, as a whole, sometimes amounting to a distinct curve. In Ti'laiioliiit we have a distinct (l(^partui(^ in a different direction in the form of a |>ointeoii't covered by the tuft. After ])roper ])reparation i'or study under the niicrosco])c this is seen to be the fact, one of the Joints being much elongated and also G BULi.ETIN 48, UNl'I'KD STATES NA'I'IONAL Ml'SKrM. I iiincli curved, fonniiif; a very distiiu't '' scoop out/' Opposed to tliis is a movable tiii«iei'-like process, with hooked bristles at its tip, supple- iiu'iited by two or even three other less specialized processes. What is the i)nrpose ot all these specializations, and why have they been «1eveloped? To the latter part of the question T have no answer, save as the struc- tures are sensory in character, it is usually conceded that the olfac- tory organs and the sense ol" smell are situated in the antenna', and that the develoi)nient of pectinations and sensory hairs is necessary to enable the male to find the feujale more readily. This explanation may be considered as correct, but it gives uo leason why so simple a struc- tiu'e answers the purpose in the one ease and why so extremely com- plicated an ajjparatus should be re(piired in the other. The sense of touch is als(» jdaced in the anteniiix; by students, and also without doubt, so tar as 1 am concerned, <'orreetly. I would, however, in cases ot this ehara(;ter consider it rather a sense of a])preciation than a sense of touch, and possibly this sense of appreciation may cover those of touch and heai'ing, being reduced to an appreciation of certain disturb- ances in the atmosphere acting upon the extremely sensitive hair, which coinmunicate, directly or indirectly, with nerve tibers. That they are not required by the species to maintain its existence is i^roved, of course, by the fact that the female has no such sensitive or sensory structures, and hence we assume that tlie^ are of use in recognizing the presence ol that sex by the male. 'file ot'iier ju'ocesses stand on adifferent footing. They are mechnnical, not senscuy in their chaiactei', and we assume that they have a sexual function i'ov the reason above given — they are found iuoue sex ouly. I have.uever myself seen any sjiecies of this series in copulation, nor have I found any who have seen it. So far as I am awaie, no imblication to which I have had access has desci'ibed the process; hence the subject is one for ,"oiiJe(-tuie. .hidging from what we know of certain species of (.'oleoptera these mechanical modilicatitms are clasiiing organs, enabliiig the nude to encircle and tightly hold the female antenna' during copu- lation. Wliy the necessity for such organs exists in the present series still remains a question. The most interesting modifications, however, are those of the male forelegs, and in this entire tribe not a single species has a quite noimal strn of sjx'cics aii«l ill the opposite diiectioii in others, its d(>portioiiatc ai»pendage which seems a continuation of the outer wall and extends to the tip ot thi' first tarsal loiiit if it does not include the entire tarsus. This ai»iKMidage is sometimes (]iiite slender, sometimes enormously expanded and shield like, and usually covers a mass of specialized scales ami, \ ery trecpiently also, tufts or pencils of hair. It is often clotluMl with stiff hair outwardly, and when cut or crushed is found to liave the inner surface a mass of specialized sensory i)its. The epiphysis is always ))resent and relarively large. In many cases the covering is furnished at tlie edges with curved book lets, which are closely set and fit into correspoiuling fovea' on the tibia. TIm^ tarsi are \ ariously modified. In all cases the fnst joint is enor mously elongared, often cfpialing the femur, and it is also much thick ened. This thickening is more api)ary this application of the femoral groove to the groove in the coxa the pencils of hair on these parts lie together in what is then a closed cylinder or elongated <'apsule. When the leg is extended the femoral pencil may be erected and exi)anded fan like, forming in nuiny cases more than three-fourths of a ulation there seems no function that could be filled by these structures. They must be, for the present, classed among those appendages with the use of Avhich we are not fully ac(juainted. It is indeed remarkable that i till 1 l)e cia mo r tw 1 an ve Stl up th A ag A KEVISION OF THE JtELTOlD MOTHS SMITH. tliioii,uli()nt tliis tribe inilcmial dcvt'lopiiuMits himI \vix stnictnres sliould bo c.losi'l.N cont ..ited; tbi- witli the most Mbcially lutU'd k'jus are asso- ciatt'd tlie antenna' with tlie longest pectinations or bristles and the most highly >»/.sY/, from which it ditfers in palpal structure as well as in the lack ot special anteuual inoditi<;atiou. 10 lU-l-I.KTIN 18. UXITl-:i) STATES NATIONAL MUSEUM. 1 ChjltolUa liiis tliu mule anteiiiiii' biistlcMl, and lias at basal third a nodosity, covciiiiin- tliroo eiilav^od.joiiirs, which aro funiislK'd with cor- Tiie innlc fore le^rs are prominently tufted, but abor- so far as in the preceding genus, which it follows neons processes tion is not carried naturally. lileptiiin an"^ )Ie fippt be a| tribi Til lari A REVISION OF THK DKLTOiD MOTHS — SMI'l'II. 11 nafiirul hv for«' tibia in the male has thv, pnxjcss very lav|;(', iii()i)-IiUe at tip, with tlie arate the s[»eeies from the Caradrina series, though vein five of the secondaries is usually quite strong: yet this is a somewhat variable feature in the specie^s. Even the i)alpi are not strictly Deltoid in chara nriJ.KTIN IS, UNITED STATES NATIONAL MUSEUM. broad itii.l trijuonatc witli iniirkiMi or rt'ctimfiuliir aiii<'(\s, iirver jircatly exloiidcd, tlio ontor nisirj>in niodrnitely ol)li, somotiiiH'S ii little niarkrd ciiitrally. It is not miiiktiy tliiil this yciiiis may come to be brokiMi lip soiiM'diiy, wImmi thcr*' is siitili('i<'iit material IVoiii other faimal re.yioiis to coiiiijare wirh oiir own. At present il has seeim'd to me dillieult to draw lines witiiout t-reatinj^' even more nsmu's than Mr. (irotc has pi'o])osed. LonwiHiltrs (lillers irom UomoJovhn only in the {jfrt'atly extended a])i('es and ilie very oblicjne onter niarj>in of the primaries. The palpi do notditl'ei Irom those of ('(lictalis, and no other eharacters of valne have been discovered; tln^ iivnus restin.u' thus mainly njjon winj-- Ibrm and jicneral lialntns. l-rom Sidia it ditVers by the lonj;- paljti. I'liiflu/jx'iui is il very y-ood j;enus; robust, especially in the mule, the palpi rather short, priinsiries narrow, ai)ices marked, outer mur^in evenly and oblicpiely carved, inner margin sinuate, relievinj;' the inter- nal anyle which thus forms a sort of tooth or projection. This char- acter is uni(iue and thus separates the jnenus from Jli/peiid, to which the narrow primaries and anii>i<; secondaries would otherwise ally it. IIi/lxjiKi, which is phuu'd at the end of the series as an extrenu'. of the developnuint of its type, has narrow prinuiries and large broad second- aries. In the ])rimaries the inner margin is even, not sinuate, tli(^ hind angle not in the least |»rouite a number of si>ecies range into Texas, which seems, however, to have nothing that is at all peculiar. Arizona seems extremely poor in Deltoids, and there is only one speciies of Sulki that is thus far coulined to it. The real home of tln^ group is in that region extending from Maine rhrougli Caiuula, west to the Great Lakes, southward along the Mis- sissip])i, and eastward through Ohio, along the southern boundary oi Pennsylvania to the Atlantic Coast. In this region most of the spe(;i<'s now known to us occur, and some of them are contined to it or even the more northern and eastern iK)itions of it. All the species Hy at night and are readily attracted to light and sugar; but many of them also start freely during the day, tlyiug like Geometers an tlijui Mr. <'Xt01l(l('na. witii l>cna, all three of Jiid into uliar to .seems, seems lia tliat iMaine le Mis- \iivy oj' species eii the it and ig- iike Jibii?!- tiees, on by '» A REVISION OF THE DELTOID MOTHS — SMITH. IS tlieii' (lark colors. The lieiiiiiniini are more fi'iMpient in open wood lands where there is considerable nndergiowth, antically ac(|uainted. As all of NN'alker's names have now been ai>i»lied, the i)resent classi- fication of the American Deltoids !nay be fairly considered as well grounded. SYNOPSIS OK TllK (iKNKUA AM) IMdMKU (iliOCPS OK l>KI .T<»ll) MOTIIS. 1. I'iil]ti sleiuler, npcurved iilmiy the front; anttMior ieinora of tin; iiiiilc! tlin k- cikmI at linse, elso tlio \{\^ Jioi'iiial IIrlii)ti, -. I'alpi slender, nitcnrvotl; or straiglit orohli(|iio, with iijinylit scaly vcstitiui', iiialvinji tlit'in hla(llii|iic. witli ii|iri;!;lit mciiI.v vcHtitinc, tliiti tiiiUHVerscly toiiiprcsMcd; iiiiterioi Iv^^h of iiiiilo ciitirrlv iKMiiiai Ilyptnitii, I I 2. Miiltt iiiitoiiiiii' cilijittxl, \vil)i(>iit Hpocial iiiodilicut.ioiits; |)i-iiiiuriuH witli obttim^ .ipiiTH ami roitiulcil oiitcM' iiiai)j;iii Kri/Ki'xis (p. I". ;{. I':ilpi slimier, sinotillily Mcaiod, upciirvcil almifi Mir front; »icklt'-Hlia|»tMl I I'aipi tiaii.svfiHtil.v coiiipiosNt'd, Htraij^iit oi ohliiino; iiover api»li(«l to tlio front; ciotlictl willi nprijuht mcuIuh, giviiij; it a laj,'^*''' l>lii«le-lili<' a|ipoiu'an('i) ^ I. Male antiMiii.i' with two ur tliroo Joints at basal tliinl fiiniislietl with )>uinttMl (;orii(!oiis |iro('«KM<'« «!ovcroil by mcuIch 5 Mali< anttMuni' witli a poinlt'il tiiltof hair at basal thixl, but no special processes (i. Male antonnii- eiliated, simply 7 i"). jMalo anteiin.e lat(Uiilly luistied ■ ZANtl,()(iN.\Tll.\ (p 27) Male aniennie bi peel! na ted llouMis.v (p. I,*)). (I. Malt) ant(Miii;e bristltMl; jniniaries obtusu, trifoliate Tktanomta (p.tJl). 7. I'riiiiaries minow, with acute apex and oblnnie outer iiiai};iii Mi.i;i'1INa (p 57). H. rriiiiaiies willi tlu! accessory coll i>iesciit !l. I'riiiiaries wil lioiil, accessory cell IL'. !>. I'rimarieH anirulatud, llie middliMit outer iiiai'<;'iii ]ii'odiiced, e\ca\'atu(lbeIow apex II Primaries md aiiH:iilated Id ID. AiileiiMM' ol (he male leiii^thily lii|)ectiiiated, \vithoiit*s])«!cial niuditieation at basal iliird, TlllLdMi; i ha (p. ,M)i Anleiiiia' (if male laterally bristled, with a nodosity covering t\\o or three loiiieons piucesses at basal I liird Cin'Kii.n a (]>.."> 1 1 Aiiieuna' ol luale cilmleil, without special modilications lIvri'.M i..v ( p. 7(>' 11. Male allteimic coarsely pectiuated DlCHCKTls (p. ><'_') IJ. I'rimarie.s mit aiiLCulated, apex distinct or rectangular; male antenna- with a ]>oiiiicil tiill (d' liMir at iiasal third, coveiiiif* a bciid and lin;;er-like I'loccss KkXIA (]> ()".). Primaries with the outer mar>>iii iirodiiced iit middle, any;ulated; usually a little excavated lieh>\\ apex ; male aiiteiiu.e bristled Hi i:>. Primaries biinid, entile in Imlhsexes: palpi norimil . . . . Hi: ii;i;o(ii!A.M.MA (p.7?<>. rriuiaries liniad ; in (he male deft nr split, from tlio middle of the . inter margin nearly one- third inward (iAHV:i;ASA (p, H0> Prima ricM narrow, pointed. ( lit ire; jialjii of male with a nu'inbranous ap]iend- aiic luiiiiNliiMl with a loni;- pencil of hair Pai.THIs (p S4 ). 11. Primaries wii h apices obtuse, outer ma ruin rounded C'Al'l.s (p f^)- Primaries inuad. trifoliate, apices marked, outer niar<;in (ddiiiuo and rounded, with a variably marked tliouuh always slij;ht anjiulation at »«i'l«lh' I!(».\i<)l.(ii IIA (p. 'tl^ Primaries broad, trij;«inate. with lengthily produced apices and very ob- liqmdy I'Mindcd outer iiiarjri n ; palpi very lonu and straifxlit. Lo.MAXAI.TKS I p. Idili Primaries naiiower. with acute apices and oblj.|ne outer marifiii ;'palpi short, oblic|ue, lormiim- 'i p'>inted snout Sai.ia (p f<9). I'rimaries narrow, secondaries vuilltl!(l i» Hpcciiil (, ATIIA (p 27- {.MISA (1>. I"!) )l.l TA (|». til ■UNA (1» "(7/ !i. 11'. 0(1 below II \v 'iitioii lit i:tha (p. ,10) Of tlircc 11. II A (It.:. I) VILA (p. 7(1) .'KTIS (p. XL') !iii' with ;;t'i-like MA (p (m). siiiilly ii i:; .M.MA (p. 7?<>. i< (p r'X). lie and tiiiii at It IIA ( p. 'M i r.\ ob- i:s (]>. lO'.h 1 .-^lioi t, i.lA (J. fiiir. IMIO. Hiiltiior, VerzoichnisB, Il-IH. IS.V.l. WalU.T. (.'at. IWit. Miih., Hctoroc-ra, XVI, \',V2. \f<~t'.'. CimU', I'laiiH. Am. Kiitoni(iloH:i('iil Soc, i\', Ko" lldlit. ( ilU'lir(.', lMr>l. (iiiciu'o, SpocJHH (.•'iioral, I)»'ltoi»lc«, 76. I'mK/lilfiliinnd, (Iroti). 1X71. (in. it', Hull. Miitl. Soc. Nat. Sii,, M, 17. lOycs iiakod. lar^»'. j^lohosc. l-'nmt smooth; jintciiiiii', situated on tlio vertex siiid (dose to thecoiiipoiiiid eye; ocelli small, sitiiiited beliiiid tli(! aiitemia' and also riose to tlie compimiid cy*'. Aiiteiiiiii' inoderato ill leiiji'tli; ill tluMiiale with lateral bristles and hair tiifts, sometimes scaly, not alike in any two spej-ies, therefore separately descniied for each; in the leinale th(;y ar(^ simjile with shorter lat(Mal bristles. The palpi are mod('rat(! or (donj^ate, <'lostdy scaled or with ratluu' roiifjli vestitnre, always iipenrved, more or lesssi(!kle-Khape(l, always reat hin^ the vertex and sonictiim's extendiiiii' far beyond it, their terminal Joint moderate or neatly eipialiiijn' the second in le!i,t>th and acutely terini nated. The ton,mie is moderately well developed. Tlie body is moderate or rather slij^hl, the thorax proportionately small, nntnfted, the al)do- men lonjicr, rea(diiii,in to or exceeding the anal anyleof the secondaries; i-ylindrieal, nntnfted. The lej;'s are smoothly scaled, inoportionate, nnarined save foi- the nsnal spurs. In tlie male the Jinterior femur is somewhat eiilarjicd at bas«'. inferiorly excavated toward the tip to receive tlie. short tibia, in which the epiphysis is larj^er than in ihe female, in th(^ latter sex the anterior le^' is normal. The wiiij»saie rather larj4(^ in proi)oi'ti()n to the body, varyinj;' some- what from a strictly tri<;oinite type to a somewhat elonjjjate form, but hai'dly subeiptal, thoiiyh inner and costal marj;in are nearly of the same length. The oiimmentat ion is very similar throiiiihont and (Consists of stronyly (lenttited traiisver.se dark lines, accompanied by white or i>ale shade lines, As the j>roiind color is light or dark the black or wliite ])arts of the lines become more |)romineiit. The .secondaries ar<^ usually .some ^hat ])aler than the gj-oniul color and .ire "also marked with more or less ^ obvious transv<'rse lines. '^ Ther(i is a ureat deal of \ ariation in size and some in ai>i»earance amoin>' the species of this genus and the female is, as a rule, the larger. Mr. (Irote's reason for a(!cepting Epizciixh rather than llclia for this genus seems to be well founded, ami my acceiitance of th(! term (loes not imply that I consider our sp(Mies distiiu^t froui the l*iUro])eaii forms referreil to niider (Inem'e's generic term. There are two fairly well marked series in the s])eci(^s of this genus which might almost l)e considered as being of generic ViUne but for the occurrence of intermeiliate forms. The fir.st of these seri(^s is (diaracteri/ed at a gliince by the smooth, glistening vestitnre, the S''jdes being closely ai)presse(l, and with a 16 (UJLLETIN 48, UMTKD STATES NATIONAL MUSKUM. hi sliiniiiy, almost iiivnny i\\}\m\Vi\uvi\ The palpi an* l(»ii«', closely Healed, iipcurvcd, and siidilc siuiix-d, (•oiisid«'ral)l.v «'X<«'tMliiiK tiie vertox, and tlu' tcruiiiial Joint is nearly us loni> aw tlie sn-ond and su'iitoly tenni- niited. The taiMul daws, wo tar iis exsiiniiicd, an- sinijjle. 'I'o this Keiies Mr. (Irotc has applied the term I'seiuhifiltiNM, iiuil it coiiti.vins four speeies. /-;. luhiinili.s is a smoky, blackish hrown species, in which the tiaiis- verse lines are ohscnrely pak' and broken, an''f^' chaiacteristi(! appearam-e. I'J. f(>lini(l(tlis is a miu'h smaller specties than either of the preeedinj;-, anles that sy/ecies in the daik color of the prinmiies and the nairow distinct median lines. The secondaries are pale, however, and uisriuctly nuvrked by transverse lines. A\ ficohialis and I], hutrcntii further agree in having the abdomen black with narrow white rings margining the segments. The tarsal chiws are toothed, resembling tln^ following series. The second srli H.inmtla mihI A'. (Umriralin a\u\ is in scwjic respects intennefliiile l)«>t\veen tliein, possessing eliiirueter.s however I liii( ally it very stron;;ly to series I. It IS the laij;est of th«i Hpt'eles (tf the seeoml seiU's, and in winj; torni is very like speeiincnH of /v'. hihrivalis of tlie same si/e and less tri«;fo- nate than in either of the others. The |)al|U considerably oxeced the vertex ami are ion^'er tlian in eitlu'r <»f its nearei- assoeiates, thoiiyh as mnch shoitt-r than in I-!, hihrlrolis. In color and niacidation it is dusky and powdery like h\ (vitiiihi; hnt it has a distinct picfminent precedinj;' shade to tiie costal region of tlic subterminal line, and in this it icsenddos /v'. mnvrividiH. /v. ((mevienUs is whitish ashen gray In (rol«»r, with the transv rse lines distinctly marked, the median shade heinj;- espe(;ially prondnent, and thv suhterndnal line preceded by a distinct black shade. E. (Viuulu is a more even, dnll inray, very nuich powdered and with oat any sharj) eontiast in nnu-nlation; thongh all the lines are nsually distinct and very like the preeedinif. ANALYSIS oi' rrn: sn:< ihs oi i:i'izr.i'x:s. I'iilpi iniicli PXcCediny thi' \ crlcx, toriiiiii;'! Joint iiriitc, cloacly nciiled, iiciirly as lon^ as t \w si'ciiikI. Vestitiirc MiiKiotli, jflintt'iiiii;;'. 'riio jjrouiid colrir is .smoky black, nicdiaii lines \y.\W\ ini'diaii space oven, I.rilliK Al.lS. Tlic ground color is dully sordid Intooiis. tlie nicdian liiiCH hla( kisli ; a diisUy, siilxiuadratc iiatdi in (lie outer lowtn' anf^le of the median space, I)i;ni'' ci.Ai.is. (Jroniid color smoky black, all tlie lines obsolete or but viif^iidy traceable; a \ cr.N small species itori'XDAl.ls. (ironnd color black, seccnidarics Hcarcely paler; lines narrow, broken, con- trast iny;, white s( OKI A MS. Vestitnro ron<:;li, not i;listcnin<;-, i)o\vdcry. lUackish f^ray. the maciilatioii distinct, lines narrow, l)lacU and white, strongly dentate i.a'. iiioxm. I'alpi rtiachiiifi to or somewhat exoeedin,";- vertex; t<'rnunal Joint nsiially considera- bly shorter than th(> second, nion- roniihly clothed, not so acntcdy ter- minattMl. Macnhition contrastinji;; blackish, sharply niarkcid on a lif^lit '^vny ground, size nioder.ito . A.Mi.iJK Ai.is. Macnhition not contrasiinji excei)t tor .a black cr)stal blotch iireccMlniff tlu^ snb- tcrminal line; ground ((dor powdery dull gray, sutl'used with yellowish; si/.c large M.\.ii>l!Ai.ls. Macnhition (d)scnr«;. not contrasting' ground color dull gray, jiowdc'ry over lutcous; size moderate KMli-A. Epizeuxis lubricalis, (Jeyer. 18H'2. (Jeyer, Zntriigo, IV, 1!) lig.s. ()()">. (ilHi, /s'^xc^ckj/s. 18.")!. Onent^c, .Species (Jenoral. Dcltoides, 77, //(/i(/. 185!». Walker, Cat. l?rit. Mns.. lleterocera, XVI. l.Sf). ICpKciuis. 1874. (inde, Hull. Hull. Soc. \at. Sci., II, 17, l'scii(l(tHua. 1S77. (Jrolo, Canadian Enttnnolonist, IX, 2!). i>r. syn. \ ar. orcidnilaliK. Smith. ISSI. Smitli, linll. iU to [{) uim. = l to !.(»() inches. IIAIUTAT,— I'liited States generally; northward to Nova Scotia, and found from midsumni.'r to autumn. In Texas, dales are May and October, and a seecunl brood is indicated. The variation in this spe(;ies is prinmrily in size and in the ground color, which in j)ale specimens results in giving prominence to the dark lines, while in the (birk specimens the pale lines become most evident. A large, jtale form, in whi(!h the lines become diftiise, is fcumd roiniiient, set into distinct ]»its on the sides, though rather close to the base, and they lack the bristly tubercles entirely. The harpcs of the male aie (piite simi)le, the upper angle i)roduced into a pointed i>rocess, wliiie inferiorly and toward the base is a somewhat chitiiious process with a knob-like tii», which is furnished with short, stiff spines aid haii. Epizeiixis denticulalis, llaiv« y 1S7."). lliirvcv, I'.iill. liiilV. Soc. Nat. Sci., II. I's:!. rxciKluglossd. (Iroundcoh)r a pale, somewhatyellowish.gray. with black powderings; abdomen and secondaries ])aler, the fornu'r with the edges of the seg ments pale ringed, the latter more thinly sealed. I'rimaries with all the lines distinct. Basal line very close to the root of the wing, and not prominent : dusky. Transverse anterior line nearly upright, enealh, the primaries are dusky, and there is a more or less evid«Mit reprodaction of thetraiisver.se posterior and sublerminal lines of the nitpi r snie. The secondaries are more Inteoiis, and iia\(' two distinct, brown, cxcn extra median, lines and a l>lackish marginal line. Uoth wings ha\(' adiscal liinnle, that of the piimanes less distinct and some times obsidele. 1:; "20 lULLETIX 18, TJNITHn STATES NATIOXAL MUSEUM. ■jil " li I- Exi>ansc<)l\viii,i>s, 2') to .SOiiiiii = l t(; l.L'O inches, llAiJiTAT.— New York to Texas; District of Columbia in .Inly and August. This s))ecies is by no means so common as tiie precedinji', and is not jjenerally distinguished from it. It is sometimes ranged as a pale Ibrm of IJ. liihficaliN, or more frecpiently a pale form of that species is labeled E. dnttii'iilfilis. Tln^ ])i-esent species is always recognizable by the oi)vi(ms median shade line and the dusky patch in the outer ir.-'erior ai:gie of the median s])aee. The rather i>rominent ])ale rings to the ifiargin'of the abdominal segments ai'e also somewhat distinctive. From the spc(!imens I have seen the si)ecies varies mucii less m size and in gidiind color than h\ hihriralis, and is a very Mcll-detined one. Infortunately, I failed to find among the material before me any female specimens, hence can not si»eak of the antennal charaeters of that sex. The male antenna' resemble (piite strongly those of E. hihti- rahs: but ixU tin-. featur<'s are more intensitied: the Joints are broader, the scab's more dense, the lateial bristles are longer and more stout, the tuberculate pro(!esses bearing hair, are more ])roininent and the hairy tufts are more coiisi)icnons. and, finally, the tubercles giving rise to sei)arate hairs are miicii more numerous. Examined with a hand lens, the impression is that tiic member is much more bushy tliaii m the l)i('ceding species. In the primaiy sexual characters there is little dif- fering from the i)receding, Tiie ty})e of the hari)e is exactl> the same, and only the proportion of the parts differ slightly. In wing form ^his sjtecies is (piite considerably different from E. luhricdlis, tiie primaries being distinctly more trigonate, projiortioiiHtely shorter and broader, making the outline (piite markedly different. Epizeuxis rotundalis. Walker. 18(i5. Wulkor, (at. iliit. Miis.. llcifrorcia, X.\.\I\'. 1111. //,en(>ath. the wings vary from <|uite. jiale whitish gray to smoky, and the usual transverse lines are s(»inetimes well nmrked, especially oil the secondaries. The maculation is most evident when the ground is lightest and then also a discal spot is usually i»resent. A KEVISION OF THE DEl/lVHD MOTHS SMITH. 21 Kxi>anse of wings, 17 to 'JO niiii, ().<>8 to 0.80 inch. IIaiutat. — Ciuijulii to N'iiJL'inia, west w aid to the lootliills; .hinc and July. Tliis is tlie smallest of the species in avei-'^M' e.\))anse, and is still shorter and rounder winged than /v'. erior margin of the liari)e is not drawn out ans,sa forhcssi i, French, is based upon specimens in wliicli the maculation is mm. (>.<'ew York in .Inne and 'Inly. This is one of the smaller species, and moat nearly resembles IJ. luhri- cdlis in wing (brin; seeming, indeed, <»nly a somewhat further stej) in the depth of the ground color, and replacing by white the sordid yel- lowisb of the ])ale lines. This contrast, the narrow, iisnally broken white lines on almost dull-black ground, as well as the a\ bite ringed abdomen, makes this species easy of recognition. The sexual pieces, so far as they have been examined, res(unble E. ////»'/ca//,s(piite closely; but I have mtt had a male fr<'e for dissej^tion. The species is not com- mon and is most usually taken at night in my experience. The antenna' dilfer (piite obviously from those of /v\ luhrii'ttlis in both sexes. In the male the joints are less marked, the lateral bristles are feeble, not as well dev('h)i)ed, indeed, as in uiie fern de of its ally, and there are no j)iIiferous processes or tubercles. A comparatively few hairs rise from small punctures, but they are scant in number and feeble. In the female the lateral bristles are yet farther reduced and are hardly more than stout hairs, and we have, thus, an actual and marked struc- tural character supplementing those drawn from maculation. Epizeiixis lauientii, Smith. 1893. Sniitli, Entoiiioloirical News. IV, S:5, Epizriixis. (Iround color of head, thorax, and primaries ])owder.\' blackish over dirty whitish, the latter cohtr visible in the markings. The usual transverse lines arc rather prominently definelackish out- wardly, with the transverse posterior and siibterininal lines of tlici n])per side somewhat indelinitely li^troduced: secondaries uray, the i"'.irk;n}4s of the upper side less distinctly dui»licated, and with a very (.■stinct black discal lunuie. 1^-vpan.se of wings, 2.') to 2(i inm.=:(>.!»2 to 1.04 inches. IIAUITAT.— Mitchell bounty, N. C; in ,Iuly. This species is most nearly alli«'d to J^J. siolnolis. ai^Teeinj;" with it in I he dark (!olor and tlu^ banded abdomen. It dillers in the wider wings, powdery clothing of both wings, and the pale secondaries, agreeing in these characters with the following species. On the other hand, Ww palpi are entirely like those of IJ. scohialis, aud this s|»ecies it also resembles most nearly in anteniial structure. In both sexes the ant«'nna' are (piite hea\ ily scaled, the scales somewhat upliftetl. In the male each Joint is furnished with a single i)air of lateral bristles, which are rediu-ed to bristU lik(} hair in the female, so the joints may be aluios: said to be simple. This is a curiously intermediate form. perha])s more nearly related to the I * se 11 da (J Umna series, but in clothing" and ornamentation more allied to Epizcitris. Epizeuxis ameiicalis, Guenoo. 1851. Gnt'iioo, Species (Jeneral, Deltititles. 7S, j)!. (i, lig. 5, Ilil'ia. !«,")!• Wiilker, Cat. IJrit. Mus., Hctcioceia, XVI, 131, Kpi:(iijis. 1S7H. (Jroto, Traus. Am. Kutoiiiological Sdc, IV, HOT, Epiziuxis. 1883. Hdoy, Canadian KntDmolof^iHt, XV, 171, larva. Hcriplipeiiiih, Walker. IS.'iS. Walker, Cat. Urit. Miia., Hotoroccra, XV. 17(5,"), Microplnina. IStlH. (Jroto aud Robinson, Trans. Ain. Kntoniolo^ical Soc, II, 7'.', pr. ayn. 1873. Groto, Trans. Am. Ent(>molo,i];ical Soc, IV, 307, pr. syn. (Irouiid color of head, thorax, and primaries pale, bluish ash gray, more or less black powdered. Head and thorax not maculate. I'ri maries with the outer part of median space yeUowish brown, varying in distinctness, and beyond this the wing is more or less sulfused with sordid yellowish brown, which, as a rule, docs not exteml to the costa. All the transverse lines distinct. Ihisal line marked on the costa only by a blackish spot. Transv«'rse anterior line upright, irregularly out- curved between the veins, black, preceded by a white line, which is variably distinct and marked outwardly on the costa by a iii .' wliitc line, iiiid piecodcd on tliccostii by ;i distiiictbliick or brown bl»tcli, wiiirh iiiMii ll.v extends to the inception of the niediiin line. In its course it is ucntely dcntated on tiie veins, outwardly oblirjue fronj costa to vein 4, tlienee incurved to the inner niarj-in. Subtenninal line promi- nent, white, preceded by a distinct black shade innch broader toward the costa ans, liowever, are even more jjroniin'Mit than in tlie male, and tlie snrfaee on tlu^ upi)er side is iml)ri(iited in ajjpearanee. The harpes of the male are (jnite simple, iieaily satches, less distinct than in E, (i)iiiri<- to ."U mm. l.-O to l..'>7 inches. liAHiTAT.— New York (Ithaca); Ohio (('olnmbus); Illinois (Carbon- dale). I have six spe(!imens of this species before me, all of them females. The sjx'iries is curiously intermediate in maculation Ix'tween fJ. (vmuUi and E. amrrinili.s, but is larger than either, and differs from both in the long i)alpi. which considerably exceed the vertex, while tiiey are shorter tiiaii in the I'sci((h(()los.s(( series. In the shape of the i»iiiiiaries it more nearly resembles I'J.o'mula in the rounded a]»ex and outer nmrgiii than /-;. amerimUs, in which the apex is rectangular and somewhat well defined. :l: 'i f m m i-it w 26 nULLKTIN IH, TNITKl) STATES NATIONAI. Ml'SEl'M. It is innio tliiiii ]>iohiil)l(' tliiit s|K'ciiii('iis of lliis species sire in (>\Uvv colIectioiKs mixed with eitiier E. (vmiiUi ov I'lumnicolix, i)iil the species seems more rare tiiim either. It is represented ii. the Niitioiml Museum collections by two poor specimens, withont locality, marked .Inly, and which were found with (vmiiltt. Epizeiixis cemiila, lliibiirr. ISir>. Iliiliiicr. KxotiHclui S('hiiiott('rIiii;;f, III, f. (i. a., Iilidilolow. iSltl. iliiliiicr, WTzoiclniisH, ;{|t'i. Kpiztiixis. ISr»l. (JlK'IirC, S|ir(ic.s (iciirlill, I )*. IfrHv. sv.i. hennhiioidi's. Walker. ISdO. Walker, Can. Na.t. .'nid (ieol., V. 2.59, Bomopfera. 1865. Metlinne, Cana, pr. syn. coiicim. Walker. 18()(). Walker, Can. Nat. and (ieol., V, L'tw, Hoimha. 1H77. (Jrote, ('anadian I'-ntoniolof^ist, IX, 2!l. j)r. syn. (Ironiid color, a dull smoky "ray over liiteons; powdery. Head and thora.v uniform; inunacidate. Primaries uniformly colored, without contrasting shades: the transverse maculation distinct, but not con- trastino or i)romiiient, and not marked by costal spots or l)lotclies. Basal line reduced to a black mark on the median vein and .sometimes a. small costal sjx)!. Transverse anterior line nearly ujirifiht, with three variably marked ontcurves in the inrersi)aces; single, black. Trans- verse posterior line black, denticulate, as a whole outcnrved, somewhat retracted in the submedhm inters[)a(;e, followed by a yellowish .shade whi(^h, as a rule, is marked on the (josta, but is rarely conspicuous elsewhere in its course, Subterniinal line pale, sinuate and irregularly angulate or dentate, usually defined on both sides by a darker shade; but this may be eonliiied to a preceding shade, and may be entirely ab.sent. Terminal line black, Inoken into lumiles, followed by a ])ale ory(illow line at the ba.se of the usually immaculate fringes. The median .shade is blackish, nearly upright, vi)earing more thinly sealed; powdery, crossed by three transverse lines, of A RKVISION OF rilKlJEIiTOIl) MOTHS — SMITH. 27 wliirli tli(M)iit('r is pale jiiid slightly (Icntalc. A I)1()1«mi, l)la('U toniiinal hue, IoIIow^mI by a yellow liiu; at the l»as<' of the tViiijie.s. Heneaih, powdery, the wiiijis (Tossed by three veiy vaiial»Iy disf iiiet tiaiisxcise lines, of which the outer is iiioic or less deiil ieiilate. l']\I»anse of winj^s, I!) to L'S min. O.To to l.lli inches. llAnrrAT. — Eastofthe Rocky IMountains: northern and eastern ran ye, .Inl.N' to September; south and southwest, Mareli to Novend)er; Colo lado in S<'])tenib)M'. 'I'his is ii common species, with ' prominently from tlie more usual form. Sometimes tbrms occur in which all contrast is lost ami they are then abnost uiiiforndy .uray and powdery. The antenna' of tli:. niah^ have the usual lony lateral bristles, and Ixdow these a well-marked pe(;tination or i)rocess of moderate lenj^th, considerably exceedin<»* those of /v. aitwriealis, but, like them, clothed with tufts of sensory hair. Thei'C are no supplementary lateral tubendes as in the allied si)ecies, and the pits on the underside of the Joints are less numerous. In the female the antenna' have the usual slender lateral bristle and the under- side of the joints are marked with sensory pittinjis. The scaly mark- ings so distinct in /A ((inrricalis are here barely traceable. Tiie sexual characters of the male are well nnirked. The harpes are narrowed at the nuddle and drawn out, and the tip is rather irregularly rounded. The clas])ers arise from a stout base and aie attached to the harpes to the middle, whence they are sei)arate as stout, slightly curved, cyliw drical, ami pointed pronjiS. The species thus ditlersthrouuhout from IJ. iii()l();.;i<'Ml Soc, I\', MOl. Mciinchjitd, (iroto. \H1',\. (iroto, 'J'raiis. Am. I'/UtoiiiolouicMl Soc, I\', 'MM'}. Eyes naked, large, globose. Front smooth, in perfej-t exami)les with ii ]>ointed tuft l)etween the iinteniia'; but this is a variable and often defective feature. Tongue hmg and stout. Antenna' moderate in lengtli, arising from the vertex, close to the <'ompound eye, the basal joint (Milarged, much stouter than the remainder '" the stalk; but the dilation nuu'h less nmrked in the feniiile. In the male the antenme ai-e tarnished with lateral bristles on ciich joint, and at about one-third :| 1K' m 28 MULLKTIN IS, IINITKI) STA'I'KS NATIONAL MU.SKUM. ; (Voiii l»iis<' tlu'iv is a tliickriKiijn' of tlio stoin, |»riiici|>;ill,v ciiiiscd hy a (louse clolliiii;: ..I' scales oiilwaidly, iiiaikiiif; a. niore or less evident, bend, and beyond tins aie two (»r three Joints, eaeli of wliieli lias also II stout, elawlike inocess on tlio inner Hide. Two is the usual niiinher, and three the eveepticui. In the I'eniale the antenna- are simple (U- sealed, or witli snndl lateral bristles, and as no two species are (|uite alike in this particular this feature will be separat«>ly described for each. The palpi are very lony, eiirvin;!' upward, far exceedinj;' the vertex, the second Joint much the lonjiest, the vestiture (piite closely appn'ssed or even smoothly scaled, never with upright or blade like upper edu'e: (pule uiarkedly siekleshai)ed. Ocelli distinct, elose to the i'onipoMud <'ye. and (piite well removed tVom the base of the aiitenn.e. The body is sli the wiii'-s, t!:" thorax i)roi)ortionately snndl. unlufted. the abdomen <-ylindrical. sube(iual. untuftt'd, reachinj:;' to or exceedin*;' the anal anj-le of secondaries. Le^s lonji', slender, closely scaled, the posterior much the lonj>est and in those the tibia- Jive stouter tlian elsewhere. There is no armature save the usual spurs of.the inicMIc and hind tibia-, aiul these are very lon«- and s(tniewhat uneipial. the inner spurs considei'ably the best se|>arately descrilx'd undei- the specitic headinjis. The win.ys are larjie, the ])riniaries tri.monate, with reetanjiular or obti;se apices and very evenly and not greatly curved outer niarjiins, the inner marj^in not nuich short«'r than the costa. The v«'nation is normal; but varies somewhat in the arrauf^enuMit of the veins arisiiiff from. the accessory cell; 10 being sonietimes from the middle of tlie upper nnir^in, sonu'times from the end. and sometimes even from a stalk with S, a shoi't distaiuie beyond it. I'ndcr the above definition are included the s, 'cies of I'iti/olita. ('I<'j)t()mit\ainination. I'ili/nlita li;is slightly nion' y a somewhat narrower base, making'' them a little more evenly tripmate than in the normal type; but, nnlbrtnnately, thisdiHer jMice is iiKMUislant and becomes yrcatly lessened in soiiMi larj-c^ females, makiiif'' it thus an iinsal'e basis ol division. The species Ills very neatly amonj^; the typical species of the jicnus. The species formerly rcfencd to Miifiiclii/la forma fairly well marked division oi' the {jfeiins. reeo;^ni/-able by the costal enlar^Cfiiient of tlu^ (tr«linary sjiots which, even wlieii least marked, is in . It is also the larjn4'st of this series ,ind in all respects the best marked as well as the most common. Z. theralis. Walker, or Z. (Icccittiicdlis, (Jrote. is :; decidedly smaller firay speci«'s, in which the costal spots on the median lines are black and (piite well marked; bnt the third spot is miu*h less delined, is not apical, and precedes the snbterminal line, eontinnin^ for a {greater or less distance to emphasi/e this line, and often no more marked on the costa than on the hind margin. In this sjtecies the transverst^ posterior line makes a very abrupt ontward bend below the costal spot, and the line rnns in close inoximity to the snbterminal line for the balance of its course. Z. nihiondis is also gray, but yet smaller than the preceding, from which it also ditfeis by tiie broad, somewhat r(iliH—iUu\ that is. of «'onis«', iuipossihh^ to con I'nsr with ('itlicr of tla^ altovo. In .uronnd color /. hrrif/ata amy vary IVoni caiiu'ons yray 1<» alino.^t liiack, an(' in e(dor tln're is practically no vaiiation in the markings, i. o.. the course of the(M«linary lines. It isi»rol>alde that under the teiin /. oh.solrto 1 have redescribed an almost immaculate form of this spe.'ies. /. piinvti/oriitiH, wliich at lirst sijiht resembles /. Uvriijata (piito stroiifily, has the transverse anterior line oiitcnrved, wl ile in its ally it IS ri>;i Z.Uvri- f/ata, th()Uj>h iiiiich smaller, and proltalily abundantly distinct. It is «'liaraeteri/ed by the inomineiit black median lines, the inner ([uite dil'luse, and l>y the black shade prec(diii.u' the subterminal line, (rnlbrtuiiately a sin.uie imperfect si»eciiiien only is known, and there is no information as to whether we liaAC a normal form, or some- tinu\s take on a similar appearance; lint do not mean to sngj;est any specific relation betwe(Mi the two. In all the follow ii y spec'ies the subterminal line is evt'H and straight; usually it is i)ale, and in many instances preceded by ii dusky shade. Z. iK'<(ii)il((lis is a liiteous j;ray N.riu and dilfers from all it's neij;lib(us in that the siibtenninal line is -! isivy and only oc<'asionally followed by a vaji-ne paler line. It is also ai'oieviated below the apex and (b>es not reach Ihecosta, lermiiiatini;' in such a way as to make it ap[)ear that its continuation would reach the extrenu^ tip of the wiiij"', where a dusky dot iiiteiisili(>s this impression. The transverse |»osterior line is usually (piite distinctly anj>ulated (»ver the cell, and tin; transverse anterior line is even, not denticulated. The peculiar course of the subterminal line adds to the impression that the forewiii};' is more l)ointe>' the ve>tit arc appears roujuh and pow\ /.ANri-xiNA ruA. 1. iMcdifiii lines diiatiMl on tli<> co.stii. roriniii^' nioiu or IfSH proinint'iit triinigiiliir SIM. Ik 2, MtMliiiii lilies Miiil'iirrii. not (liiiileil on I lie eostii 4. L'. rrihiiiries with ,'i hrow ii or Mark pateli at apex. Inllowim;- •'"' siiliteiiiiiiial line; ( .)stal patches at inception of median lines prominent; <;ronnd eidor liitcouH or brownish i.n cuai.is. I'rimaries w itiiont a dark ajtieal spot ; snl)terHiinal line simple oi- preceded hy ii dusky or Idaekish shade 3. 3. Ashen yray ; the median lines sh-nder, start infj; from ohvions eostal spots; transverse iiostcriorliiH' with an abrupt outward ben terminal line ati!II,im'.i,i.i,a. Trauss'crse lines slender, narrow, not ciuilrastiny; (i. (>. Transverse .'interior line even, not dentieiil.att^ or marked on the veins, save that there may be an aujiulatiou o\ fr the eosta 7. Transverse anterior line slender, irreijular, dentate or oiitctirved in (be inter- spaces t*. if. w 32 |{UI.M-:T1N 18, UNITED STATES NATIONAL MUSEUAI. 7. Ti'imsvcrsc portterio I- lii ic evt 1), not (Iciiticniiito on tlu Tr; ISVtM'SC l)OSll!r SllloliV or lint! incjiiilar, sli^litly (liMiticnlatcd; ffionntl color dark ucdian lines oliscnro; siibterniinal lino nunc coiiirastJuj;. . h. Coliir iiali' liitcons; transverse ii(>steru>r line «| OIlSCllMl'INMS nili; aentelv anuuiatod over tlie cell I'KDII'II.AI.IS Color darker, vellowisli brown; transverse iiosti'rior line sfronyly bisiiiuate )llt(lir\e(l iiii t liardlv aiii-nlated over tlieeell. 9. (Jolor yeilowish to piirply brown or smok smaller cinitAi.i- l'K<»Tt'MNM SAI.l^ Larger; color snio nbt crniina .tlily liiteons, .'■carcely powdery; lines indistinct or lost; 1 line usually <'ontrastin;i', Jialc, distinct, not j)rcccded by ad llSliX' s liade MAltllDtl.lNKA. Colo:' lutecHis to oclieidiis, powdery: lines well marked; nsnally a dnsky sliadini; over tlic subterminal line and sometimes a ilislinct ])reccding dark line ocliiiKlPKNMs Zaaclognatha litiualis, Iliibner. ISIS. lliUmcr, /utraene. I. 1), lij;. 1!». 20. Hiiiuii.iin. ISlti. Iliiliner, \ er/eicliniss, :M(!, I'Jitiuii.rix. 1854. (inenee, Sj)! cies (icneral, I)(dtoidcs. "!), Ililitt. 185!). Walker, ("at. ib'it. Mns., Ilcteroccra, \\\. V.W, Kitiziiuiit. IST'J. Ztdlcr. Verb. k.k. Zo(d Hot. (Jes., \XII , -I7:{, /f(Hc/.»///(///u(. lST;i. (Jrote, Trans. Am. l".ntoiiMiloiiie;il Soc, IN', liOti, Mcifdcliitia. (iioiiiul color it littlicM' (.'veil hitooiis luowii, vaiyiiiji in slii!<,l«' to m »n' liileoiis or more tcddisli, iniiiiitely ])()\v(1im y. Head and tliorax concol oi'oiis. IM'iinai'ics witli the oi'dinaiy lines niaiked by bfow n. I)laeki.><1i, or black, (iiiitc |>voininent costal spots, but indelinite or obsolete below thai i)oint. Uasal line marked oidy on cost;i by a sin"!" black line Trau.sx else anteiior line ]»ronMnent ly marked on the costa, but below that point traceable only by a few black scales and a sniiill si)ot on the median \('in. wliicli is sometimes wantiiij^". Transverse posterior line marked by a scries oC \eniilar dots, accompanied by a vaji'tie, indefinite, paler shade. Sid)teiiiiinal liin' most prominently m;irked, pale, its <'onrse nciiily strai.yht; but the line itself is crennlated, the ctirves oiit- wiird and usually lilled inwardly by black dots, which are v;iriably dis tinct, sonu^times f()rmin<>- a cpiite obvious shade and occasioindly disap- l)earin.^i\ltoj'-etlier. .\ Inoken black terminal line, occasionally eliantfin.y to liinnles ami sometimes almost disappeariii} Tl le ape.x 's nmrked by an oval brown or bhick costal p;iteli. Orbicular :ibsent. Iieniform a luoreor less ]>roiuinent Itlack lunnle, distnict in :ill the specin;ens seen. Secondiiries ]»aler than the primaries, often shaded with blackish out wardly. crossed by an evt'U, rather well delined black slmde line at the middle and ii more irreoiilar pale line toward outer marj»in. This hit ter line is marked in )»roportion to the dark sha Mollis — SMITH. 33 but mucli luoic prominently so. There is also a distinct black disciil lunule. On both win^s there is a series of terminal linmles. Kxj)anse of winj^s, 21 to 21 mm. ((.S') to 1.12 inches. llAiMTAT.— Canada to Florida and Texas; Central States; New York and Delaware in June; District of Cohind)ia in Auj>iist. In the series of specimens before me tiiere is litth^ variation, excei)t in size and intensity of the groundcolor. As the huier «leei)ens tho snnple markinji's are more relieved, and in such (tascs we note a vague pale shade i?ulicating the course of the ordinary lint's. In one speci- men, received from Mr. W.N. 'I'allunt, Columbus, Ohio, the central space of the primaries is considerably jialer than the otlu'r j»arts of the wing, and in a Delaware specimen the terminal space is (juite obviously diirkened. )u this species the lateral bristles of the male antenna' arc well nnirked aiul tjuite long', and the Lhickening at basal third in\olves four joints. Of these, three bear stout spines inwardly: the two lower ami shorter bear e;ich "1" them two, of which that nearest the tip is stoutest, while the third and longer Joint bears a single process basally. In the female the antenna' are clothed with rough scales and with scarcely prominent lateral seta'. Tl;e fore legs of the male are furnished with moderate tuftings only. The cavity of the coxa is iilled by elongated scales. The femur contains no evident tuftings, while the tuft beneath the tibial process is sparse. The species is the most common of those ^x'hmging to the lirst scries and is re])resented in most collections. It is in this, also, that we find the most marked tendency toward a bunching of the veins, arising from the accessory cell of i)rimaries. Zanclogiiatha theralis, Wiill«'r. 1851). Walker, Cat. 15rit. Miih., Iloturocera, \1X, Sij."), Hirminia. 1893, SiiuMi, lUill. r. S. Nat. Miis , 11, '.m), Mvi/avhuld. dcfiplrifalin. Zellor. 1872. Zeller, Verli. k. k. Zool. Hot. Gos., XXII, 17.S, /niirloi/udtha. 1873. firotc, Trai)s. Am. Kiitoinol<)i>i('al Soc, IV, liOfi, Mi'dnrlnjtii. 185)3. Smith, liiill. II. S. Nat. .Mns., tl, 380, \n\ syii. "), Mcfiacln/la. I8!i:!. Smith, Hull. V. S. Nat. Mns., U, :'.8(<, pr. var. (Irinind cohu- ashen gray, variably black powdered. Head ai.d tho- rax concolorous. Primaries with the ordinary lines marked and the median lines promnu'iitly dilated on the costa. Uasal line marked on the costa only. Transver.se anterior line usually distinct, single, almost upright, a little outwardly bent in tho submedi.in interspace. Trans- verse posterior line single, black, slender, usually rui)tly bent outwardly L)elow the costal sjjot, thence crcnulated and often irreg r, yet as a whole nearly parallel with and close to the subtermiiial line. Subtenninal line iiale, distinct, (juite rignl in course, minutely «'reiiu- 7,S(;i>_No, hS— .*{ 34 lUJLLKTiN 18, UNITED STATES NATIONAL MUSEUM. If' luted, the (uiive.s directed iiiwaidly, and the liiu; preceded by a more oi' less well-marked black shade, which is always more distinct ou the eosta. A series ol" black terminal wdery, both winj^s crossed by a fairly evident, sometimes ]»rominent, extra median and a more faint, usually punctifonn, outer dark line. A discal si)ot is also obvious on all wings. lOxpanse of wings, 1*0 to 1'2 mnK=O.SO to 0,S8 inch. IlAiuTAT. — Nova Scotia to North Carolina, to Central States; New Yorii and New Ilampshiiein -June. This species is much more rare than /. llturaJis and seems ijielined to be more variable. The type of /. nypHidia which 1 examined in the British Museum is a j»artially suffused specimen in which the base of the primaries is shaded witn ochery and the subterminal and tciinin. .' spaces sprinkled with dark brown. It is not entitled to varietal ra.ik, because the ditlerence is rather in the nature of an aberration. The male antenna' have the lateral bristles well developed and the thick- ening at the basal third well marked, chietly by dense scales on the outer side. Two Joints are furnished with stout, practically identical spurs, inwardly. The female antenme are feebly ciliated (mly. The fore le}»s of the male are prominently tufted. The coxa has only a few scattering iiafrs, and is not grooved; the femur is grooved on the upper side, has a tuft of scales at base and a pencil of long yellow nair attached at the tip. The tibial ])rocess is very broad and large, but e<>vers a comparatively small tuft of hair, the tufting of the femur being in this case the most iin])ortant. i- Zaaclognatha minoralis, new sixciew. Pale ashen gray, with fuscous powderings. Head and thorax con colorous. i'rimaries with the median spacer almost white, the basal space and all beyond the transverse posterior line with a fuscous washing. Hasal line rather broad, diffuse, extending beh)w the median vein. Transverse anterior line broad, diffuse, luscous, somewhat dilatelo.!j;i<:il Sue, IV, 95, Hrrminia. ISTA. (iiote. ISnli. IStilV. S(»t'. Nat. Sci.. 1, :{i), /aiirlo;iiiatlui. 1878. Cirote, iJiii;. I . S. Geol. Surv., IV, 18(), /.uiivloyiuitlui. obKolela, Siiiilli. 1884. Smith, Bull. Bkln. Entimioloijiciil Soc. VII, 5. Xa)i red. leather brown, or even bhuikish. Head and thorax usually of the palest color found on the jtrimaries. Primaries witli the transverse anterior line upright, or nearly so, varying somewhat in direction and sometimes with a small outward angulation on the subcostal. Transverse posterior line even, slender, with a bold outcurve over the cell and a small incurve in the submedian interspace. Subterminal line pale, slightly and irregularly sinuate, eiiii)hasized by a more or less marked 'preceding black shade, and sometimes followed in a similiir way. A series of black terminal lunules varying greatly iu distinctness and sometimes absent. Orbicular present as a distinct black spot in some specimens, entirely absent in others. Iteniform always ])resent, but varying from a distinct, black, kidney-shaped sjtot of good size to a slender indefinite dusky lunule. Secondaries varying from smoky gray to brown or blackish, Avitli a dark extra median line, a pale snbterminal line, a series of bhick terminal lunules, and a rather vague discal spot, which is sometimes wanting. r>eneath,varyingfromsinoky gray tored brown, powdery, with a common outer dark line and a discal lunule on all wings. In some cases there is also an incomplete snbterminal line, best marked on the secondaries. Expanse of wings, 27 to 3li mm. = 1.10 to l..")2 inc-hes. II AiUTAT.— Canada to Southern and Central States; South Dakota; July to August. It has been already indicate.l that this is an ex(!eedingly variable si)e<;?s, and yet it is always readily distinguished, not only by the characters already given in tlie introductory remarks, but because it is really the only one of tiie genus witli eoi'trasting cohmition. Ten A REVISION OV 'I'HE DEI/roID MOTHS — SMITH. 37 selected specimens before iiic exhibit a remarkable (litl'ereiice in appear- ance. Unilorinly colored s|)ecimens iire rare, and tlie extreme in this ont specimen, which is almost uniformly bljickish. In some specimens the medinii lines become dihiise, and the triinsverse anterior is most usually so modilied. Some- tinu^s th(! outer half of the mediiin space is darker and sonu'times the median space is uniformly in contrast with the basal aiul subterminal si)a('es, the terminal space often varying imlependently. <}uite as usually we may have the median space lighter than any other parts of the wing, and this contrast is often very marked. The species is broadei- winged than any of its allies anle of being spread out faidike. Th<' tibial [U'ocess is very large aiul clothed with dense, long scales, which do not. however, form distinc^t tuftings. lu the female the fore legs are quite ncnnial and the trochanter is not in any v.ay enlarged or elongated. Zanclogiiatha piuictifoimis, m^w sjn-iies. (Iround coloi- an even, carnCvMis gray. Head and thorax concol- orous, Prmiaries with the maculatiou well defined. Uasal line narrow, Itrown, marked on the costa very broadly black, the subterminal space deepening in cohu' to the line, followed by a very pale shade (as are the first two lines), even, a little inwardly arcuate, arising on costa before apex and reaching the internal margin within the angle. Terminally the wing is daiker, more brownish. Hind wing a little paler, crossed by two ill-defined darker shade bands. On primaries a relatively large, rounded, black discal spot in the place of the reniform. Beneath jtaler, with double common lines, the subter- A REVISION or THF. DRLTOII) MOTHS — SMITH. 39 miiinl marked toward wstu on both wiiij>s and discal dots. Body parts ratlier pales." Expans*' oi' wings, 22 min. — 0.88 inch. llAHiTAT.— Texas, lielfraye, April 27. The above is Mr. (Irote's orifjinal deserii)tion, and it agrees veiy well with a specimen in the <'ollection «d" the American Entomological Soei«'ty whieli is almost nndonbtedly the type. Mr. Grote's descrii>tion of the genus Cleptomita also agrees with the tyi)e, one tore leg of which is separated and mounted on a card labeh'd " C7r7>^>/>Vr< " in his hand- writing. Unfortunately, tlu' description api)lies equally well to other species of Zanc}(njnaih((, and the characterization of the fore leg shows that Mr. Chote did not realize the nature of the structure examined. J have i.ut seen a second specimen, and can add nothing on the stru(!- tnre of the anteinne save that the male has the usual thitjkening one- third from base. The tuftings of the fore leg seem to be conlined to the femur. Zanclognatha pedipilalis, (iiienoe. 1851. (Jnenoe, Species (•eiieral, Deltoides, 57, llcrminia. 18.")!). Walker, Cat. Urit. Miis., Hetentcerii, XVI, 57, Ifcnii'niiti. 1872, (Irotc, Trans. y\m. Kntoinolo'j.ic'al Soc, IV, 0(5, Hermhiht. 1873. Grotc, Bull. HiiH'. Soc. Nat. Sci., I, ;«>, ntnolila. (Iround color a very i)ale, greenisli, luteons gray, liiieiy powdered. Mead aad thorax concolorous. Primaries, basal line absent in all the specimens 1 have seen. Transverse iiterior line narrow, even, brown, with an easy outward angle on the subcostal and thence nearly upright or with only a feeble outcurve to the hiiul margin. Transverse l)osterior line narrow, even, brown, stiongly exserted over the cell or sometimes subangulated, then inward and somewhat incurved to the inner margin. Sul)termiual line narrow, even, brown, often followed by a narrow, more or less (complete i>ale line, exten.i>.") to l.L'O iix-lu's. llAiUTAT.— Middle; and Central States; Virj-inia, New York, and Missouri in .Mine; Deliiware in ]\Iay; District of (Jolninbia in August. A very interesting and not um'oninion species, wliieli varies witliin narrow limits only. The ground color ditlers sorn«'wliat in intensity, the angle of tin- transverse posterior line is sometimes marked, some times rounded, and sometimesa broad curve; the subterminaJ line may be more or less abruptly teiininated belo\v the apex, and the wing form may be more or less pointed, or api)arently so. There can be no mistaking this form in any case, and the course of tiie snbterminal line in tin; primaries is quite unicpie in the genus. I would liave been strongly temi)ted to adopt Mr. (Irote's genus could J have found any reasonably suHicienr struc^tural characters. Tlie antenme of the male are lurnished with rather slender lateral bristles, and the enlargement at basal third is not prominent, the curve slight. Two Joints are somewhat shortened and nuu'e robust, and are each furnished with an unusually long and slender pointed i)rocess. The lore legs of the male are after the usual tyi)e. The coxa is slen- der, grooved above, with the cavity filled with ehmgated scales not forming a tuft or pencil. The trochanter is about one-third the length of the lemur. The femur is furnished on the underside \\\X\\ elongated scales, massed at base into a loose tuft of a black color, but not form- ing anywhere a, distinct pencil. The tibial ])ro{tess is large, and covers a very dense mass of elongated black scales, forming no obvious i)en- cil, but giving the api»earance of such at Hist sight. The species is thus characterized by a lack of distinct pencils of yellow hair and by the fact that the specialized clothing is on the under rather than the ui)per side of the femur. \ Zaiiclognatha cruralis. ( Jiienro. ISi")'!. (iiicnte. S]ioci<'s(i(>ncral, Uehoides. r)S, Hennniia. lH.-ji). Wiilkcr. Cat. I$iit. Mus.. Ilcterocma, XVJ, 108. Hominia. 1S71\ aler, powdery, all winys with a blackish discal spot, a rather well-marked extra median lino, and a variably distifict snbterminal line, which is olten followed by a ])ale shade line. Expanse of winjis, 2r> to L'8 mm. 1 to l.ll* iin'hes. IlAiMTAT. — Nova Scotia to Virj>inia; Central States; Xew .Mexico; New York; Illinois and I)istri(;t of Oolnmbia, .Inly and Auynst. The type of Mr. Walker's species is the same as the /. cninilisiA' t\w. (irote collection, which I believe to be correctly determined. The Z. em rails of Walker is the Z. hcrii/tiia of Mi-. (Irote. This species is quite common, and is very little subject to variation. In its markings it is v(;ry like Z. prdipiltdis except as to the snbterminal line, and it has the same tendency to form an anjiulation in the trans- verse posterior line over the cell. Small speciimMis which are a little rubbed may be easily confused with Z. ohsciinjminis, which differs mainly in the denticulated transvers<' ])osterior line. The antenna'of the male iire after the usual type; but the bend at basal third is much mor«^ prominent, and beyond it the Joints are more slender than toward the base. Two joints are furnished with iirso,l»isiiiuiil<',out(!iirv(Mlov(Mtli(M!('lI,iiHMnvtMl l»iiiciilli. Siibtcniiiiial line rijuMl. pale, iHi'i'edcd by a brown sliiulo wliu'li is inwardly (lilViisc. A scries of black, v«'nnlai', ti'iiniiial dots. Orbicniar wanlinj^. Ivcnilbiin a very obscnrc dusky hmulc, which is Homctinics baicly tra('cal)lc. Secondaries more powdery and somewhat paler than primaries, with an obscure dnsky extra median line and a more cMdcnt, sometimes even well marked, pale subterminal line. There is also a slender dark terminal line, followed by a yellowish line at the base ot the frin<;es. and occasionally a vaj^iie disi-ai lunnle. Beneath, more jiiay and (piite coarsely powdery. All wiiijus with a discal spot, a, well marked extra median line, !inid Iransverse anterior line; from the former in the purplish f>r:)und color and generally obscure maculation, the transverse posterior line tendinj«- to become obsolete, wlule it is Usually somewhat irre}>ularly, thoufjh feebly, denticulated. The subterminal line is ])re('cded by a brown shade, rather than a line, and these char- acters, with the decidedly smaller averafic size will enable the species t() be recojjni/ed in most instances. Most <)f the specimens before nie are from the United States National Museum, '•collection C. \'. Kiley," and bear his record number, i*S()7, and dates ranj-ing' from ;Vujj:ust 7 to 17. In the structure of the male antenna' and fore lef»s this species resem bles /. cninilis closely, and in the latter character indeed no essential difference lias been noted. The characters of the antenme are some- what "utensitied, however— that is, the bend is more marked, the joints beyond more slender, while the corneous ])rocesses are heavier, and a third joint is otten involved, also furnislieasal line traceable on the costa in some specimens, usualh obsolete. Transverse ant«>rior line slender, brown, evenly but noi strongly outcurved, with moderate ontwanl aiijiulations between th. A KEVISIOX or liIE DKLTOII) MOTIIS — SMITH. 43 veins. Tiansversc posterior line sIoiuIit, brown, slij-htly more marked on the costa, as is also the transverse anterior line; in <-ourse somewhat irregularly bisinnate, more or less distinctly, but always obviously, denti<'nlate on the veins. Snbterminal line rij;!*!, )»ale. moio oi less nnirked, rarely conspicjuons, not detined by darker line or shad<^ A series of black, veiiidar, terminal dots, Oibiculai wanriny. Ifeniform an oval, mor*; or less obscure blacl;ish spot. Secondaries i)ale, dirty InteoTis, ]»owdery. A vaj^ne, extra median e aii<4ulated transverse anterior line of tli(^ primaries. I have only live specim«!iis before me, bom as many localities, iiidicatiii;.^- rather an inu-ommon form. Of these, four are luteou8,,like the ty|)es in the liritish Museum, and ditfer only in the relative promiMcnce. of the reniform; while one specimen without detinite lo<'ality, but probably from Loujl'" Island, N. Y., is of a very decided i)urplish brown, with a stron<«ly contrastinj^' subterminal line. It is ))ossible that we hav<> to do here with a diH'ereiit species, but tlu^ material is not - ullicient to deiMde the (piestion. As has been indicate*!, the types of Z. protiimiiosalis and Z. iuiiiim((li.s are of the liiteous form. In the male characters this sperocesses, the third or up])erde(!idedly smaller than the others. Zauclognatha marcidilmea, (trnto 1X72. (Jroto, Trans. Am Kiitoiiioloyiciil Sric, I\', Jl.'i ;ni(l :!0!», Tfrrmiuin. IST'J. (trotc, Hull. r.iilV. Soc. Nat Sci,, I, H9, '/.nnvlnid, not detined by dark lines or shades. A series of venular black terminal dots or luniiles. Secondaries i)aler than the primaries, wit'h a very feebly marked, dusky, extra median line, and a more distinct, pale snbterminal line. An interrupted brown terminal line. lieneath jiale, luteous gray, with oeherous powderiuys. .\11 wins's with a discal spot, a brown extra inedian and a pale subterminal line, and all variably evident, sometimes nearly obsolete. '- • -*■ 44 lUJI.LKTIN IH, IINITKI» STATKS NATIONAL MUSEI'M. Hxpaiisr ol win^iM'a to :«)iiiiii. = l to !.-'<> iiu-lies. liAinTAT.— NortluMii, .Mi(l(II(',iiii(l ('riitriil States, soiitii to Alaliamii; New York, .Inly to S«'i>l«'nili<'r; Drljiwaic in .Inly. Tlu^ aiitcima' ar« loiiju'cr and iiion- sicndn- tliaii in tlio. .sixM-ics iinnic dialrly ]n«'<(Mliny, and tnon* as in /. Uvriijaln and /. prflipilnlis; tin- lateral bristles Innjjer and more slender. Tlie bend at the basal third is well marked, and two Joints are Inrnished with processes whieh are <',nrved and pointful at tip. The tnftinfrs of the fore !('«:« iirc prominent. The coxa has a i)encil of hair like s<'ales attaehed near base. The troehanter is one third as Ion}*' as the t'ennir. Tlu^ feinnr has a tuft ol elonjiated black scales at base and a pencil of y«'llow, hair like scales attached at tip and capable of fanlike, expansion. The tibial process is larji'c, and the scaly clothin^j; is dense, forming- no distinct pencils. Zanclognatha oclireipennis, firittL'mni— 1.10 to 1.30 inches. Habitat. — Canada t() \'irginia.; Central States; Colorad.o. Canada in .Inly^ New York,. Inly to SeptembtM-; Illinois. .Inly and August; l)istri( oof (Columbia in August. Tliit; species and Z. marcidilinea are very nnsatisfactcnily distin guished; yet they seem to be good sp(!cies. Such. differences as exist are comparative, and are obvious only in fairly good si)ecimens, becom ing more or less lost when they are rid)bed. As a whole, Z. mareUlHuun averages smaller, is nnndi more even in color, with less tendency tc (Mtherous; the median lines are decidedly narrower and much less dis tinct, tending even to obsoles(;ence, ])articiilarly in the transverse posterior line; and the subterminal line is rarely KLT(>11> Mn'UlW — SMITH. 45 ■,Ml»t<'rmiiial Him', which is iVc(|iu'iilIy pn'<-o' upward and dis- tinctly exceeding the vertex, in essential character like ZoncloffiKitJui. Ocelli distinct, close to the compound eye, and also close to the base of the antenna. The body is slight, untnfted, the abdomen cylindrical, exceeding the an'al angles of the secondaries. Legs long, (piite robust, the posterior Ix'ing most developed and much the longest, without ariiiatuie other than the usual spurs of middle and posterior pairs. In the male the anterior tibia' are remarkably moditled. All the parts are elongated and tufted, the trochanter is excessively d«!Veloped III all the si)ecies, the tibia is an abortion, and the tarsi are obsolete in some 1> 1> leg and cov<'rs a mass of specialized, bhujkish scales. The wings are moderate and i)rop()itioiiate, the ])riiiiaries, excejtt in //. orcifnalis. tngonate, with marked or even i»ointed apices; in the latter subeijiial, with obtuse orround(' II. orcifcralis is (juite unlike all the others, which are luteous or whitish, in the blackish smoky ground color, on which all the markings are obscure, and in thesnbecpial primaries, which have the apex obtuselj rounded. The species are few in number and widely distinct. None of them are common, tiiough //. nuhili/dscia is not rare. Litofpitithd Uiuaris, (Irote, does not belong to the genus, nor, imleed, to this series; that is, it is not a Deltoid at all. ' ANAl.VMS 111' lllh ..l-KCIKS OI- UO'.JMISA. Triui.svcr.sc lines (listinct; color liUcous; no lon!;itii(lin:il streakings. Larg(!r; all tho lincH ])roniinint. Ilic triinMvtnst) i)<)8tcrior and tiii))tunninal niaikcil liy hutwii infcodiiii; sliades Al!H(>iii''IAI.l.s. Snialkr; incilian Imcfs narrow and thii'adliko; snl)lerininai lino Ncarcfly trace- al)lr; no lirown ,sliadin<;8 l.rnuMioijA. Transvorso lines obsolete; color luteous; t w o prtiininent l)lack lonj^itudinal streaks, iiivirrATA. All markings oltscure; (ioloi smoky or Idackish; one darker loiigiliidinal streak iainlly marked in most siieeinieiis oKciFKKAi.iy. Hormisa absorptalis. Walker. 1859. Walker, ("at. Urit. Mns., lleterocera, XVI, 71, HormiM. uuhiH/dHvia, (Jroto. 1S7.^. (irote, Mull. Mnir. Soc. Nat. Sci., I. 8.5, jd. 2. ligs. 2, 'X Litoipiatha. 1S<«. Sinitli, Bull. r. S. \at. Miis., 41. ItHO. jir. syn. (Iround cokn- a pale luteous (u- dirty yellowish gray, with line black powderings. llead and thorax coneolorous. I'rimaries witl a brown 11 A KKVI8IOX OF THE DELTOID MOTHS SMITH. 47 isli shade on the co«ta. Transver^o uiitciior line slender, even, brown, widely outeiirved and outwardly anjjiulate in the interspaces. It is nuely distinct and sometimes entirely wanting. Transverse i)osterior line broad, brcwn, inwardly ditluse, widening to the hinl .margin. It is outwardly bent on the eosta and then runs rigidly obli(iue inwardly, reaching the hind nuirgin at its middle. A paler shade tbllowing the hue, quite marked in some specimens, merging insensibly into the ground color, which in turn diirkens to the rigid brown subtermimd line, which runs irom the apex without curve or bend to the inner '..ar- gin, well within the anal angle, and is followed by a soniewhat defined pale line. A continuous brown terminal line, followed by a yellow line at the base of the fringes. Orbicular wanting. Keniform indicated by two black dots at the end of the cell. Secondaries paler, with a dusky median line, and a j)ale external Vmv which is somewhat iriegular and is prec.'cded by a brown sluule. Beneath, darker, with dense, coarse, o(;herous brown powderiugs. There is a distinct, broad, common median line, and a less evident pale subterminal line, which on second- aries is olten preceded by a dusky shade. All wings with a discal spot. Expanse of wings, 24 to 2G mm. =0.1)0 to 1.05 inches. llAHi'i'AT. — Canada, south to N'irginia: west to the Mississipjti States. New York in July. This is the most common of the species, aiul always easily recognized by the brown shaded transverse posterior and subternunal lines. There is very little variation, and this chietly in the relative distinctness of the transverse anterior line. The antenna' of the nnile have been generally described under tiie generic heading. The j^'ctinalions are long, and from most of them there arises near the tip a long slender bristle, which replaces the pectinations inwardly at the basal third. At this jH)int two joints bear each a stout corneous proi'ess, and next to each a stilf bristle or spine. The i»e(;tinati<>ns are ciliated, the haii very line and moderate in length on the inner underside. Jnst below the pectim»ti(»n on that side is also, on each Jtnnt, a short chitinous process, bearing in a i)it a short stout bristle or si)iiie. The fore legs of the nniie are extremely modilicd. The coxa is long, grooved, fui-nished with long hair, forming no tufts or i)encils. The trochanter is shorter, but nearly double the length of the fenuir. The latter is short and stout, with a circular disklike enlargement at base of underside, which is fninished with coarse pittings and with huig black specialized scales. On the npi>er side it is fringed w ith similar longer hair and scales, forming no tufts. The tibia is reduced to an oval mass of scales covered by a chitinous slu'll, and the tarsi are rudimentary, almost completely aborted. The legs furnished with these structures have, of <'ourse, entirely lost their normal function as organs of locomotion, and are examples of modification run riot. { ■t ■*.• ■'fr "~M ^ Itf' M 48 UULLKTliN 18, II^ITKI) STATES NATIONAL MUSEUM. Hormisa litophora, (J rote. 1873, Groti", Bull, UnU'. Soc. Nat. Sci., 1. H(i, lAloijnaiUu. 18'J3. Siiiitli. IJiill. U. S. Nat. Mns., 11, 380. llonnmt. Gioiind color \)i\]v, grayisli yellow o.' lutoous. Head iiiul thorax coii- {•oloroiis. Primaries with costa ami fringes brownish. Transverse anterior line slender, even, brown, a little oiitenrved below the costa; thence evenly obIi(ine to the hind niarjiin. Transverse posterior line slender, l)rown, even, stronjily outeurved nwv the cell, then inv.ardly oblninc and with a slight incurve to the hind margin about two-thirds I'rom base. Sid)terminal line vaguely indicated by a few brown scales, A narrow line at the base of fringes. Orbicular marked by ii black dot on the transveise anterior line. Keniform marked by two black dots at the end of the cell. Secondaries paler, almost immaculate; a vague darker median liiu' aiul a mere trace of an outer or subtermiual line. Fringes brown with a somewhat metallic ielle(;tion, as has also the iiinge of primaries. Beneath paler, witli dense ocherous powderings, with a common median line, which is crenulate and broader on the primaries, where it becomes also more e\en toward the costa. E.\l)anse of wings, L';» mm. b.i>L* iu(di. IlAnrrAT. — Middle and Central States. This is smaller and narrower winged than H. alm>rpt((Iis, the primaries somewhat more iiomted or drawn out apically. The body is slight, ]>yralidil(trm, and the abdomen considerably exceeds the anal angle ot the secondaries. The species is rare, and I have seeu very few speci mens, showing no variations. The male antennie an' in type as in the previous siieeies; but there are four modilied joints, more or less lamellate, and one of these, the upper, is furnished with a stout and rather long chitinous spine; the scaly clothing being also more dense and i»romiiieiit. The forelegs of the male are <'ssentially as in //. (ihsorptalis,c\co\)t that the tarsi are not (piite abortelxi)anse of wings, 25 to 2(5 nnn. = 1 to 1.05 inches. Haiutat.— Canada; N(Utherii, Middle, and Central States; Iowa. New York in July. A REVISION UF THE DELTOID MOTHS — SMITH. 49 A rare species, of wliich I liave only a female at liaiid, I have seen I lie male, however, ami liml it fully conyeiienc with U. ahsorptalis; indeed, Mr. (irote's generic description of i*rt7/ac7t/m i.s iu all essentials like til at given by me for HormLsa. The species can not be mistaken for any other in the entire Deltoid series represented in our fauna. The specific description is copied from Mr. Grote's original characterization, and is ample for the detiiii- tiou of this simply marked form. Hormisa orciferalis, W.ilkcr. 1859. Wiilker, Cat. Rrit. Miis., Ilctcroct'ia, X\'I, !.';!."), Uloninsa. 1K")9 Walker, Cat. Urit. Mils., Iliteroccu;!, XIX.STO, ! EiiKvitjiii. 1893. Smith, Bull. II. S. Nat. Mu.s., 14, :WG, SixurhmxuKi. 2)ii]>illarin, (Jrotc. 1873. (iroto, Canadian Eutoiiioloyist, V, '2'J~. •'^iniirluniciKi. 1893. Smith, Mull. I'. S, Nat. Miis., II, 38(), i.r. .syn. hartii, L''i«'iicli. 1891. French, Hull. Ills. State Lab. Nat Ili.st., IV, 10, I'aUachirn. "Male. Concoh)rous, silky drab, veins lending lo be paler marked, {•rimaries with diHiise darker teiininal shading, and a discal, luniow, outwardly e.xtended streak. An e.\c(HHliiigly line and faint outer trans- verse line, rounded ojiposite the di.scal cell. A snbterminal oblique punctiform line from apices to internal margin within the angle. Costal margin dark shaded. The discal dots are jieiceivable against the htiigitudinal discal streak. Hind wings a little paler, with a very faint transverse shade line. An iuterrui»ted line dotted line before the silky tVinges on both wings. Ueneath darker; the liiiid wings much clouded with dark brownish, with a tlistinct di -al sjiot and a continued trans- v(!rse guttiform or cuneiibrm subterminal line, aiialagous to the subter nrnial line of the fore wings above; faint traces of an inner transverse Inie. Fore wings without markings except an incomplete reproduction of the subterminal shaded apices. l>ody paits concolorous; abdomen like himl, thorax like fore wings.'' "Female. The labial iialpi are held as in the male, but tW. third article IS more pointed. Slighter than the male, with simple antenna' and with ;iliiiost wholly blackish brown primaries. The male exhibits two trans verse lines, Mhile both female specimens have entirely glos.sy brown foje wings without apparent marks except tiie inconspicuous discal [xtiiits. lliiid wings pale drab, with faint darker terminal shailing. l>eneatli, the secondaries have tlu' double lines more equally deliiied. Thorax and head dark, concMlorous with primaries." Expanse of wings. 21 to 2'i mm. =0.8.") to (>.!>(> inch. llARiTAT. — Texas., Florida. S(»nth .specimens is credited. The male antenna- liave the pectinations well marked and laterally ciliated, furnished near tip with a long bristle, and toward the apex the branches become clavate or somewhat enlarged, clublike. Atone thiirptali.s. Professor French's type of I'nUiichira Imrtii I have seen by tlie courtesy of Professor Forbes. It is tyj)ical //. orci/endin and agrees fully with Mr. (Irote's description of male If. piipUhiris. IM-ofessor Fr'jiicli allowed the obvious resemblance to Pidhwhlra hlrittata to delude him into the belief that it could not have been described under another generic name. Genus PHILOMETRA, (iiote. 1872. Groto, Tnuus. Am. Eiitomolo'-ieiii Soc, IV, ilit. Eyes naked, large, globose. Front smooth, in perfect specimens with a pointed tuft between the antenna'. Tongue moderate. AnteniKc long, arising from the vertex close to the compound eye, the basal joint somewhat enlarged in the male. In the male the antennae are lengthily bipectinated in their en tire extent, the branches slender and setose, and there is no special modilication. In the female the antenna' are shorter, simple or sparsely ciliated. Ocelli distinct, close to the comiumnd eye. well removetl from the base of the antenna' in /'. rtmehisalin, (pule closely a|)proximated in i'. metonalin. Vii\[n h)ng,the second jcnnt iiiikIi the longest, clothed with uprigiit scales above and on the side, formiii;; a sharp ridge which m I\ mckmniix is ecjual and contiiunms, l)ut \\\ l\ ctimelumlis is more prominent centrally. In the former the }>iiliii are directed straight forward, the terminal joints diverging at up. while in the latter they diverge from the base and aie curved obli(pi<'ly A ItEVISlON OF THE DELTOIU MOTHS — SMITH. 51 upward, but not sicklelike, iiov backward. The body is inodenite or slight, the abdoineu cybndrical, jsiibeiiual, leachiiig- to or sHyhtly exceeding' the anal angle of secondaries. The wings are large, trigo- nate, wide, with arched costa, rectangular apices, and evenly curved outer margin. Venation normal. Legs long and quite robust, without armature, save the usual spurs of the middle and hind tibia-, and these are long and unequal. In the male the modilii-ation is «juite ditt'ereut in the species. In //. inetonalis it resembles that usual in Hormim, while in Jf. ('itmi'lKsalia the tuftings eijual or exceed in prominence any x'ound in Z((nclo(/natha. The essential characters of the genus are the lengthily and evenly pectinated antenna' of the male combined with the pali)al structure :in' Philometra metoiialis. Walker. IHo'J. Walker, t'at. Brit. Mns., Heterocera, XVI, 23U, JItnniiiUi. 185)3. Smith, Bull. U. S. Nat. Mns., 41, 3S3, I'hilometra. ijddntiliH, Walker. 1859. Walker, Cat. Hrit. Mns.. Heterocera, XIX, 876, KpizeiixiH. 1893. Smith, Bnll. I'. S. Nat. Mns., 44, 3S;], I'hHomctra. loiif/ihihriH, (irote. 1872. (i'ote. Trans. Am. Entomological Soe., IV, 99. 309, I'hUumetra, 1873. Grote, Bnll. Bnff. Soc. Nat. Sci., I, 40, I'hilonuim. 1893. Smith, IbiU. I'. 8. Kat. Mns., 41. IKi, j.r. syu. 52 HL'LL1:T1N •!«, UNITED STATES NATIONAL MUSEUM. u. 'ri: Gi'oiiiul color a pule luteous, powdered with darker scales. Head aud thorax concolorous. Primaries with the markinj^s evident, thon.sr) to l.Oa inches. IlAini'AT. — Nova Scotia, southward to Virginia; Central States; New York in rlune, July, and August, The species is not rare, and varies within narrow limits only. The ground color may be somewhat lighter or darker, aiul the powdering more or less evident, and as the s})ecimens are darker the lines are less distinct and the niedian shade band becomes nmre obvious; and such specimens, when imperfect, may be confused with /*. cumvhisalh if the structural (diaracters are not looked to. The paljji have been already referred to, and it is a m-atter of regret that Mr. (Irote's expres- sive luime could not have been retained. The male antenna' are lengthily bii>ectiuated, the branches slender, setose, the surface imbricated very much as m the AphUUda; becomiii': shorter and somewhat clavate toward the ti]); not furnished with ,i longer terminal bristle. In the femah^ the joints are shorter and me feebly ciliated. The fore legs of the male are much as in llonnisa. The coxa is lon.u. furnished with an imperfect scale tuft at the apex. The trochanter equals the femur in length. Femur rather stout, with a dittused s< ii sitive surface beneath, and long, specialized scales, not forming tutis The tibia consists mainly of epii)hysis and pr(>cess, tbrmiiig a sort ol pouch concealing hmg specialized scales, and concealing all save f lie terminal joint of the tarsi. In the fore wings examined, vein 10 arises from the accessory - ell near its tip, imlependeiit of S. m ;.i: A UKVISION OF THK DELTOID MOTHS — SMITH. 6B Philometra emelusalis, Walker. ISm. Walker. Cat. Hrit. M118., H.-terocora. XVI, l(r>, Ilerminio. 1891. Sinitli, List LcitKloiitcra., (iS, /'hilowrlta. Herraliconiin, (irote. 1872. Grotc, TrniiH. Am. Kntomolojijical Soc, IV, W, 'M)'.K I'hilometm. 187H. t('ra, (i.3, ])r. syii. (Inmiid color liiteous, with blackish and ])ro\vn i)()\v(lcrinfrs. Head and tliorax concolorous. Primaries with the pitwderiiij>s dense, though nre<>ularly distributed, jiiviuj;- the winjjjs a peculiarly sordid or dirty appearauce. Uasal liue faiutlyuiarkeil in souic speciuieus. Transverse anterior line blackish, rarely distinct, often diffuse and indefined, with two even outcurves in its <'ourse. Transverse jxjsterior line slender, irrcfiular; a little marked on the veins, irregularly outcurved over the cell, somewhat incurverecedin,<> shade, which becomes inwardly diffuse and somotuni's darkens a large part of the subterminal space. A narrow, black, interru])ted terminal line. A broad, dilfuse, indeflned, almost n|iiight, smoky median shade, involving the reniform, which is usually a narrow lunule, but sometimes a more prominent oval, though not (li'Tmed, blotch. There is sometimes a vague trace of an orbicular. Secondaries paler, varying in shade, always i)ow«lery, with an indefined median shades line, more ol>vious in pale sjtecimens, and an incomidete siil>terininal line, which is pale and ])receded by a dark shade toward the iiiiul margin; occasionally this line is comi)lete, and then the ter- iiiiiial si)ace is somewhat paler than the rest of the wing; beneath brighter yellowish, with ocherous pow tibia is iicnrly all i)iO('es8, the cpipliysis smiill, tlic outer slidi covoriii}? a dense tiiit of blaekisli liair iiiid scales, capable of loose brushy expsuision, and these scales extend beyond the (diitinons stnieture and <*onceal the remnant of the tarsus which is almost aborted. In the si>ecim(Mis examined of this species, the accessory cell of primaries <;ives rise at its tii> to 7 and a Ions' stalk, from which arise 8, !), and 10. The structural ditferences between the two species referred here are j>reater than in any other jienus in the series, and withal the super licial r(!semblance is (piite marke llrrmiiiio. In substituting Mr. (hotci's {fcnus for these species :iii(l oniittiiift- llrntiinhi siltoj^i'ther from tlie list of ()ui' ^eneni, I have licen decided by the hick of Fiuropcan material and the jtresent dilli- culty in jiettinj; at the type of the jicnns out of the mass of Knropean works that are not (!onvenient]y accessible to me here. Lederer defines Ilcntiinia as ln'in<;' like Zdnrlotiimfliti, but with the jialpi (lirtereiit, and he msikes three sections: tiie lirst with jxM'tinated male antenna', furnished witii a knotted thi(!kenin- //. tctildcnhifis: the third with tlu^ male antenna' havinjj laS'ral bristles oidy, without thickeniu}? at the iiiMblle, and no statement conarated as valid. Mr. (iiote in 1alpi i)oiuled out by Mr. Grote is also inconstaiit, though in C. pctre- idis more .f,*ecimens have them straight than is the <'ase in C. mor- hidalisj and the latter may be said to have a tendency to have theju curved upward. The ditference in size, on the other hand, seems to he constant, and it is accompanied in T. y/r/rtv/Z/.s' by a more than pro portionate i/tNinall<'r, avfrago 27 niin. ; color darkor; (ore ley- of iiialc liaif tlir si/c ol C. luofhidalis I'KTItKAUS. i ' liuU. IJiili, 8()f. Nat. S.i.. I, 39. 1873. 56 1U'M-1:T1\ !X, I'MTHIJ STATKS NA'IIONAI. MI'SKUM. I ^ *l 11 Chytolita moibiclaliH, (iiiciH'c lHr4. finPiK'O. Si)0('i<'M(J(ii.>riil, Doltoitlt'H, .Ml, pi. , Ihrmiiiia. 187S, firoio, Trim.H. Am. Kiitowdery, with a va!i>ue, incoini)lete, dusky extra median line and a ])ale, often irr<'fiular, also in('omplet<\ subtermiiial line, which is jneceded by a blackish shading. Beneath, with coarse ocherona ])ow, derings, a broad, variably inches. IlAiUTAT. — Nova Scotia, southward to Virginia; Central Stat\s. .June and July. This species varies little (>xcept in the distiiu^tness of the renifonn and the relative inominence of the median lines. It is common throughout its range and readily started up during the day, while coming freely to light and to sugar. The sexual i)ecnliarities <»t antenna' and fore legs liave be<'n already sulticiently described. The harpes of the genitalia ot the male have a slender, membranous upper prolongation, which is s(piarcd at the tij), and a stout, veiv strongly chitinized, i»oiiited process, interiorly .shorter than the u])!)'!' part, the intervening si)ace roundedly excavated. Chytolita petiealis. (Jiotf. 18S0. (iroto, C:uialaek; bnt this IS a v:.riahle featnr<>. In all other particulars the description ot <\ inofhiihilis api)lies. Kxpanse of wiufjs, 2,'i to .'{1 mm. = 0.!>2 t») l.'Jt inches. 11 AiHTAT.— Canada to I'.ritish Columbia, south to Jielaware, west to South Dakota. .Fune and July. The relation of this sju'cies to C. morhidnlis has been iilready stated. As a. whole, it is distinctly smaller and darker in {ground color. There is also a smoky sulfiision of the ininmrics in iminy eases, and a Ichs miirked delinition of fhe ordinary lines. Vet sonn» specimens are exactly like C. morhitlaiis in all save size. With a series of more than fifty apeciinens at hand, I find none that I consider iis doubtful, even where equals in size, thoiigh I confess myself unable to deline the specilic characters more accural ely than 1 hav<' done. The genitalia of the male iijiiee in all essentials with those of C. morhidalis, but the membraneous proloiijiation ol harju's is rounded at the tij), the inferior corneous process has a curved jmint and is more irresular. Where the two occur touether the s])ecies is not so common as (I morhldtiUs, but it is less freiiueiit southward, and I have received it from Stmtli Dakota without any examples of (]. morh'nluliH. Genus BLBPTINA, (iimiioo. 18r»4. rJiiotK^e, Species (Ji'iii'iiil, Dcltoidcs, (!(?. IS;-)!*. Walker, ("at. IJrit. Mus., Ilet.ioc.'ia, .\VI, 11!). Head rather prominent, th(m<«h not large, with a pointed tuft between the antenna'. Eyes |)roininent, globose, nake*!. Ocelli small, situated clo.se to the compound eye, rather w(^ll r<'movli(|iu'ly loiiiHlcd; in tlio leu);' >iii<' wiiijfs iiro bioador, the cdsla not (It^prcsscd, sdiiictinu's cv^ > «i\itlh» iirclu'tl. This jicims is til'; '<»^; I'll iiiiirUcd by llic cliiiracti'i's <,'iv('ii. Th«».sinij)ly cihiitr iinU'iiiiiii stnictinc willioMt oven ii tuft of haii nt hasiil third is (|nit<' niiusu;il, niid this, witli the very distinctive \vin;> lonn. innkes it remlily icroHni/iibh'. Its nearest ally is 'Motiolita, in which th<' niiile antennii' and the winy Ibiin only are dilVerent. Three speciesiire referred to the j^enns; two of tlu'in, /.'. coniilrinnlis and />'. /»f7//. They ditler strn<'tnrally, yet may be easily <'onfnsed, snnill forms of Ii. cantUriinilis fre(|uently donij; duty for /.'. in/'irior. In 11. ruradri- nalis the inarkin'. iii/rrior I have <'ver seen. The male antenna' ar«' furnished with lateral bristles. It. ////f-r/o/- is snndler, asits name iinp. caradri nalis in maculation yet more closely in some <'ases, but is of the si/e of hi/rrior. The male antenna- diller obviously, the loufi'er lateral bristles bein}> reenforced by distinet and numerous ciliations which at once 1)vioiin; the ordinary 8))(its distiiu't. Size larger, avtrage 28 iniii.; aiitiiuiia' of malt^ with iiKMhiratc lateral bristles, CAUADKINAMS. Size HinalL'r, avorago I'S nini. ; anteiiiin' of male with longor and stonter lateral bristles, rc('nfor(!(id hy nuniorons ciliations mkihai.is. Markings obsolete, ordinary spots sniali or feebly marked; antenna' of nialo ciliated nnsrely ; size small, average 23 mm ixfekiou. Bleptiiia caradrinalis, (Jnenoo. 1854. Onenc^o, Species (ieneral,Deltoides, (u, lUepimn. 18.")!). Walker. Cat. Urit. ]\Ins., Helerocera. XVI. IL'lt, filrpihin. 1X72. (irote, Trans. Am. Eiitoniologieal fcioc. IV, d'.i, lilcptina. 1«78. Grote, Rnll. U. S. Geol. 8urv., Ill, 791), Jihpluia. cloiiiiixaHH, Walker. 1859. Walker, ('at. Krit. .Mus., lletoi.Kcra, \VI. KC). f/crminia. 1877. Grote, Canadian Entomologist, IX, 29, in: syn. A UKVISION or TIIK l>r,l/lOII) >f()Tr[S— SMITFT. no (fitMiiMl color ii hliijsli oray, vuryiii;; towanl clay yellow, and with rn(»r<'orlcssai)iiiMlaiitl)lack i»ow. Texas, in April, .May, .Tune; New York, June and •Inly; Delaware, Kansas, and Colorado, in June. The species is as common as it is widely distributed and as variable as it is common. The ditl'erence in wing form between the sexes has been alluded to, and in addition the females are usually more evenly colored, with the ordinary maculation less evident than in the male. The yellow^ subterminal line is the most prominent feature in most instances and it is often sharply detincd by (listinct preceding and fol- lowing dark shadings. The median lines are rarely jmrniinent, and ipletely defined. The transverse anterior varies in the not often eomi direction of obsolescence and in tho amount of irregularity. Tl le transverse posterior varies from crenulate to a series of venular dots. no BULLETIN IS, UNITED STATES NATIONAL MUSEUM, t-v A (listiiu'l'vc and nsnally quite iiiiirked feature is the bioail Median shade, and liequently the lenifoiin will b(* b'^ack an«l form the most conspicuous feature in the wing appearance. The distinctive structures of the male antenna^- and fore lepfs have been already described so fiir as essential. Bleptina medialis, new sjiecies. Oronnd color bluish jjray over luteous brown, more or less black powdered. Head a-:ul thorax concidoroiis, immaculate. I'rimaries varyinji' in <:int. Hasal line traceable in all specimens before me, vei-y distinct and black in some cases. Trainsverse anterior line nearly upriiiiit. irrefjidarly ontcnrve. vnrailri units. Tlie reiiiform is erei.iiiy i)ah', as is theorbieidar, suhobsoletel.v l)hiek rin--ed, and shows an inferior bhiek ineinded dot. The niarkinj>s of its eon- {•ener are re|>ro(biee, iiie wings vary somewhat in width, being comparatively elongate, narrow and obtuse in 7'. Diinifstilin, more trigonate, wider, am! with a marked.a|)ex in I'.jloridaiia, and with an altogether broader, more ample, and frail a|>p«'aran('e in 7'. pdlliffcra. In the latter species the outer nnirgin is sonjewhat nnirked at the middh' when the frfnges are defective. In all the species the accessory cell is wanting and veins 7 to 10 are stalked, vein 10 arising very close to the base of the stalk. It is altogether liiecimens of 7'. jUn'iiUuut are completely int»M-mediate. In the struc tare of the male fore legs tlie species agree remarkably. In the str'U' tare of the male antenna' the agi'eijment is only in the type. In T. myucsaUx the joints are rather even, cylindrical, not marked, fur nislied with moderate, slender, lateral bristles, and with little tufts of tine hair interiorly arising from small tubercles. The tuft isquiti? long and marked. In T.jloritland the Joints are much more robust and shorter, marked, almost subserrate, with coarse scaly clothing. The lateral bristles are hardly more prominent, but the tuftings interiorly consist of decidedly longer hair. In 7'. pdlliurra the Joints are yet monr marked above the tuft which in this spe(;ies is much reduced; thescal,\- vestiture fonus two elevateil rings on ea(^h joi'it and the. lateral bristles.are much. reduced in leuiith and thickness, In color 7'. ninncsaliii is usually smcdvy t<» blackish ov«'r a somewhat liiteous b;'.so, whicdi occasionally ap|)ears (juite «listinctly. T.tlvrUhiim is luteous, with smoky powderings which darken the terminal portion of both wings. 7'. 7w/////<'/7Ms paler, with Inown [lowderings anangeAXA Color liitoous; male antenna witli JointH serrate aliuve tlio mneli-rednced tnt't. the lateral lirit^tles Ninall i-ai.mcjkha. A REVISION OF THE DELTOID MOTHS — SMITH. (J3 Tetauolita myiiebalis, Walker. 1859. Walker, Cat. Ihit. .Miis , McteroctTa, XIX, S60, lilejHinu. 18'.)a. SiiiiMi, Bull. i:. S. N,it. Mils., 41, 389, TeUiuoUtd. lixaliH, (iiote. 1873. Grotc, Trans. Am Entoniological Soc, IV, 30G, TctatmUta. 1893. Smith, Hull. U. S. Nat. Miis., II, ;{89, i)r svii. Silky bliickisli. Priinarios with ;i faint i)urpli.sli reflection. Trans- verse anterior line indi.stinct, linear, darker tlum the 0 to 2'.\ mm.=--(),SO to 0.110 imdi. [lAiJiTAT.— Middle, Central, and Southern States; Texas in March, May, and October; Illinois in .Inly. Tiie si»ecies is not common, except in the souLnern i)ortion of its range, being most often received from Texas. It varies lit Je, except in the distinctness of the nuKailation, the form described by Mr. Grote being a well-marked typ» which is somewhat less common. Usually the yellow K'liiforin is (niite obvious, but sometimes even this disap- pears. A }»oi'it not mentioned by Mr. (irote is the tact that the black- ish abdomeu i. usually narrowly pale annulate. Tetanolita floridana. new Hpecies. (Iround color a pale luteous, with variably distinct smoky powder- iiigs. Head concolorous with the darker, the thorax with the paler parts of the wing; abdomen somewhat more gray, the edges of the seg- ments i>aler ringed. Primaries with tlte markings ill defined, nune or less darkened over the costal region, tlie outer part of sul)t<'rminal and all the terminal space dusky. Uasal line faintly indicated in some si»ecimens. Transverse anterior line single, blackish, a large outcurve III thesnbmedian interspace, else nearly upright. Transverse posterior line slender, dusky, creniilated. ol>li(!ue. iieaily parallel with the. outer margin. Subterininal line pale, more or les- interrupted, parallel with 64 HULLKTIN .If<, IJNITKI) STATES NAl'lUNAL MUSKUM. the outer marj-iii or a little simiated. eini)liasize(l by the smoky shade throujih which it runs. A series of black terminal liuiules, frin^^es pale, cut with smoky brown. There is a ditluse, obliciue, broad, smoky, median shade, whicli is variably evident and iisnally involves the reiii form. Orbicular a small yellow dot, which is never iirominent and often obsolete. ' Kenifoiin a small yellowish line or lunule, sometimes almost obscured by the dusky median shade. Secondaries j,nay or whitish at base, darkenin}- to smoky or blackish (mtwardly; with an extra median, rather even, darker line, and a ])ale, irrej;ularly denticu- late, subterminal line, tlirouj;ii the darker outer re{.!:ion. A series of black terminal lunules. Ueneath jjray, black i)owdered, darkeniiif>out war(lly;with a more or less conqdete dusky extra median line and a more evident, pale, subterminal line, repeating- the upper side on both wings. A more or less marked discal lunule, sometimes obsolete on the pr'inaries. Expanse ot wings, 2(1 to 21 mm, =0.80 to 0.85 inch. Habitat.— Florida, Archer, in March and April; Texas, in March. IJoth sexes are at hand, and are similar in ai)pearance. It haw been impossible for me to tiiid a single permanent diilerenre in marking between this spe(Mes and the two others. It is i)aler than T. limlis and darker than 7'. i)nal Museum collection. Otliers are iii the Edwards collection in the American A KEVISION OF THE DELTOID MOTHS — SMITH. 65 Museum of Natiuiii History. The specimen from Taiiamiiit Valley comes nearest to the Floridian species in ai»pearancc; but tiie more nmple wiiifts will auilice to (listiiifjiiish the form, even from the most similar of the other. The structural characters previously described are, of course, decisive whenever a male is at hand. In somewhat rubbed specimens, in which the fringes ar<^ defective, the outer margin of the primaries seems slightly angn.lated at the middle, and this umst he ujy excuse for referring the species to Hvterogmmma in the tirst (lescrii)tion from somewhat scant material. It is probable that iu its range the species will be found not uncommon. Genus R E N I A, Giumoc. 185t. Guem'-e, Species Genoral, Deltoides, 80. 18.")!). Walker, Cat. Hiit. Mus. Hftcroccra, XVI, 117. 1877. Grotc, IJiiU. U. S. Geol. Siirv., Ill, 119. Head moderate, sometimes ([uite prominent. Eyes large, naked, globose. Ocelli di.stinct, set well back from the base of the antenuie and close to the compound eye. Front with a pointed interantennal tuft. Tongue moderate. Palpi somewhat variable, laterally compressed, directed straight forward, obliijuely as(;ending or even recurved, sickle- shaped; the second Joint longest, clothed on the upper side with upright scales, sometimes evenly, sometimes massed toward the middle, making it seem higher. The tei-minal Joint varies considerably in length, always set into the second at a small angle, and this also quite usually clothed with upright scales, which are longest at the middle, giving the Joint a triangular appearance when \iewed trom the side. Antenna' long or moderate; in the female simple, with line lateral cilia- tions; in the male with distinct, though not very long, lateral bristles. Ueyond the middle, in this sex, i.s a prominent pointed tuft of hair on the outer side, which conceals an elongated curved Joint, which in turn protects a tuft or pencil of specializtnl liair. IJeyond this point the joints of the antenna' become shorter, somewhat serrate, the lateral bristles shorter, and there is a very distinct temlency to a curling or coiling of the tip. I>onsiderable variation (existing in this feature. The venation is some- what abnormal, lacking the accessory cell in all the species and in all the specimens examined, though I would not be surpri.sed, from what F liave seen, to lind exceptional specimens with a nioi d or less perfectly pointed out by Mr. (J rote. In the majority of the s])ecies it is irregnlar, dentate, crenulate. punctitbrm, or otherwise mark«'d; but in two s[)ecie.s R.J}((ri])uiufali.s and R. pulrcrosidis. it is even, ])ale, and preceded by a more or less marked, also even, dusky line. Of the first series, R. diHcohtralis is much the largest, exceeding in si/e indeed all others of the genus, and is thus recognizable by th;it character alone. It is also mucll the most variable, rivaling Zmichuj iiafJia iH'r'Kjdia in its protean changes, and we find every gradation from a uniform tint, in which none of the markings are traceable, to a strongly contrasting tyi)e, in which all the lines are prominent and all the spac. s discolorous. A prominent feature is found in the nearly continudiis snbternunal line, marked by both a i)receding and a following darker shading in most instances. The other si»ecies of this secticm are decidedly smaller, never van i ble, and again divided on wing form. R. fniteriiolis, R. mhriulis, aid R. larndis have longer, more pointed fore wings, the apex marked, the onter margin (piite obli(|neand with a little tendency to incurve below the tip of the wing. R. difosaliN and R.fnctionalts have the fore win-s A REVISION OF THE Dl-SLTOID MOTHS — SMITH. 67 sliortor, less trigoiiate, broader toward base, tln^ outer inar^'iii much less <)bli(iue, and the apices scarcely rectangular and not in the least pointed. Rfmtrrnalin varies from pale luteous in tln^ male to light-red brown in the female. Tlu^ ai)pearance of the male is very suggestive of a >nmll li. salusalifi {brcrirosfndis); but the i)iilpi show tlie ditterence at ■A glance, being straight and loug without sexual moditicatiou. The lemale diti'ers nmrkedly from the male in color, this sexual difference recurring in this genus only in A', mhisalis, and tiie maculation, which ill the male is (piite distinct, is almost lost in the female, in Avhich the subtermiual line alone temains mark«Ml. h'. HohriahH {rcHfricfaiifs) is smoky over luteous, varying to bhu^kish, with the maculation obscure, and A', larealis '-esembles it except in size, being somewhat hirger and in having a somewhat paler, more purplish tinge to the primaries. According to Mv. Grote, " It will be easy to distinguish R. resfrietalis from R. larralh^ \yith which it agrees in ornamentation and general tint, if we observe the greatly shorter and recurved labial palpi of the female. In R. lariudis the feniale labial palpi are extended forwavali)al characters pointed out are unreliable, and while they hold in ])erhapsa considerable prop((rtion of cases, yet 1 have seen instances in tvhich they were exactly reversed, and the examiuation of the large series of specimens of all species now before me shows that there is a sulliciently great range of varia- tion, especially in the palpi, to render their use for specific characters at least unsafe. R. cHtostilis {aentralin) is another smoky, rather more bhuikish si)e- cies, but the wing form already mentioned separates it from those imme- diately preceding. The juilpi are more evenly clothed than usual in the genus and are more or less sickle shaped in both sexes. The spe- cies strongly resembles Tefanolita niyiicsdlis on a much larger scale, and is quite different from any other of its congeners. R. factiosalis {plcnilinealis) agrees with R. clitosidis in wing form, but ditfers in all other characters. It is leather brown in color, vary- ing to a deeper shade, with nu)re or less black powdering,. The macu- lation is variably distinct, and sometimes tlie spaces contrast more or less, varying to an almost uniform leather brown with the maculation obscured, as in the form named A'. nluUilin by Mr. (Jrote. The remaining s])ecies are those already separated off on the even, pale, transverse posterior line of the primaries, and they are closely lelated. R.flavipunetaUs is a well marked species, and the maculation is in most cases distinct, the transverse^ ])osterior line i)rominent and co:i- Umied somewhat more faintly across the secoiularies. ■ ■' ,":'■'- 68 HULLKTIN 48, UNITKI) STATKS NATIONAL MUSEUM. li. pulwmmlh is ()>)S('iiivly iiiiiiked, iiltogethcr iiioro fViiil, with longer palpi, more shMuler antenna', and more- pointed piinniries. The wings are entirely obscnrod by smoky ])owderings, and the niarkinii- of the primaries are traced with . 5. Color luteous to leather l>rown Kit vtkuxai.is. (^olor smoky or gray om'X luteous (1. 6. Size smaller ; expanse, 'l'i-2(\ mm soniti a i.is. Size larger; expanse, 2S-;)(),mm i.akvai.is. 7. Color smoky or blacikish c'l.rrosAi.is. Color leather brown to luteous kactiosam-. 8. Markings fairly distinct; secondaries crossed by a ])ale line ki.avm'Uxctai.is. Markings obscure, jiowdery; secondaries almost immaculate I'Ulvkkosali.'- Renia salusalis, Walker. 185!>. Walker, Cat. Hrit. Mus., Ileterocera, XVI, 107, IJerminia, 1893. Smith, JJnll. U. S. Nat. Mus., 44, 387, Hciiia. brevirontralis, Groto. 1872. Grotc, Trans. Am. Entomological Soc, IV, 25, lienia. 1873. Grote, Trans. Am. Entomological Soc., IV, 3051. pi. i, tl'. id, !»2, Itcnia. 1893. Smith, Hull. U. S. Nat. Mus., 44, 387, i)r. syn. (ironnd color luteous, varying in shade, with black pcnvderings, Head and thorax concolorous. Primaries with the markings distinct in the male, a little obscure in the female, liasal line punctiforni. traceable in the specimeiis before me. Ti-ansverse anterior line brown. u]»right, or nearly so, a little irregular. Transverse posterior liiif creuulated, ratlier evenly bisinuate as a whole, and very oblique nearly i)arallel with the outer margin. The line is sometimes reducc'l to a series <»f venidar dots. Subterminal line irregular, pale, obscure, marked by bla(;kish preceding spots varying in nund)er and distinci ness, and sometimes followed by less evident marks of the same chai acti'r. A series of black vcnnlar round color and less evident unicul.ition. In a small nuile from (leorj^ia the reniforni is prominently black and the other markings are reduced and punctiform. The other sexual characters of antenna" and forelegs agree with those of the genus. Reuia diacoloralis, Guont^c. 1851. GueiK^o, Species (Jeneral, Deltoidcs, S2, licnin. 1872. (irote, Trans. Am. Entoinolojfical Soc, IV, 21, Itiu'ui. faUacialis, Walker. 1859, Walker, Cat. Brit. Mns., Heterocera, XVT, :W, Ifiiprna. 1872. Grote, Trans. Am. Entomologit al Soe., I\', 2."), pr. syn. 1893. Smith, Bull. U. S. Nat. Mns., II. .'^^7. t/enevolin, Walker. 1859. Walker, Cat. Brit. Mns., Heterocera. X\l, 29, ll;ipvna. 1893. Smith, Bnll. U. S. Nat. Mns., \\, 38(5, pr. syn. thrdj-alis, Walker. 1859. Walker, Cat. Brit. Mns.. Heterocera, XVI, l()!l, Ilcrwinia. 1891. Smith, List Le]iiale luteous to dark brown, always ))(>wdery. Head and thorax always of the prevailing color. Prinuiries with the subterminal line distinct in nu)st in.stances, but else varying in every possible direction. liasal line evident, broad, brown. Trans- verse anterior line outcurved in the inter.spaces and as a whole a little oiitcurved. Transverse posterior line irregularly dentate and crenate and irregularly sinuate and inwardly oblique in its g(!neral course. Subterminal line pale, a litthi irregular, always with a marked outward angle at about the middle, preceded or followed, or both, by a darker ^ii'« SI I ade, often more prominent before the angulation. A series of venu- 70 mJLLKTIN 18, UNITi:!) STATKS NATIONAL MUHKUM. liir teniiiiiiil dots. Tlicro is a \mr.u\, oblhiuo, soinewbnf ditlnsc in<'(li;iii shiule. Oibiciilar siiiiill, round, y«'llow. KtMiiform upiij-ht, iiiirrow. yellow, \ itli black dots at I'acli extremity, somcliines conncctiMl by a (lark lino. Secondaries varying' fVoni pale yellowish juray to almost black, will- a vajiue dnsky median and pale subterminal line and :i series of blacki.sli terminal lunnles. lieneatb more coarsely p(nvdery: all win^s willi a discal Innnle. a broad, c(mimon, brown median line, a pal<^ subtt^rminal line, and a series of dark t<'rminal lunnles. lOxpanse of winjis. ."{."i to 10 n\m. = l.;i2 to !. inclies. IIAUITAT.— ('anadato Virj;inia; Central States; New York and Dela ware in July; District of Cobnnbia in An<;-ust. The above description applies to an evenly colored specimen in w liicli all tlie macnlation is well defined : but as a matter of fact sucli s »eci mens are tlie exception rather than the rule. \'ery pale and very (inik si>eciinens tend to an obsolescence of all macnlation, and only inter mediate forms are apt to have it evenly defined, liesides this ran^eot variation in evenly colore*] forms, there is a decided tendency, e(piall\ marked in both sexes in my experience, toward disc(doration. Tlir median space may be dark and all eN" contrastiii;>' pale, or the opposite maybe the case, or only one space m, ., be affected, and this is as likely to be the basal as the terminal. Yet, witlial, the character of tlic species chanj^es little, and its size ahuie will serve for its reco}initi(tii. In the male the palpi are curved; the vestiture of the middle .joint i< therefore lonj-er at tlie middle than at the base, while in the fennile tlic palpi are straight and the scales are even. The sjiecies is quitch widely distiil>uted and is not rare. The sexual modilications offer nothing; out of the common. Renia fiaternalis, new .si)ccies. Ground color in the male a jiale luteous .yray; in the female ycUowisli red-brown. Head and thorax concolorous with primaries. Primaries in the male with the macnlation fairly well marked; in the female tlie subterminal line only is detined in most instances. Basal line indicateil on the costa. Transverse anterior line sinle, blackish, irregulail.\ outcurved, and outwardly exseited in the interspaces. Transver-e ])osterior line linely crennlated, often piiiuitiform, black, nearly jiarallel with theouter margin, or <»iily a little sinuated. Sal)terminal linepiiiK tiforni, a litue (► to l.OS inches. IIAIHTAT.— F|oii(la,Arniiiiy, lUnk Lcdj-eiii Ajtril: Siiviiii llitll, (iH. Twelve, specimens iire beloie me, showinj; little varintion, Imt a con- siimt sexual diireionee in color. Tiie males have, in all eases hefoie me, llie described markin<;s, tliou<-ii not e. Id, lUuia. lHi»S. Smith, Mnll. U. S. Nat. Mns., 11. 387. pr. svn. (Iround (iolor smoky brown to blackish, powdery. Head and thorax concoloi'ous. Prinmries with the maenlation obscure. Transverse anterior line irregularly outcurved. Transverse posterior line barely lrac«'able, punctiform, as a whole nearly paiallel with the outer marj>in. Subterminal lin(^ pule, si i«»iitly irregular, usually interrupted, sometimes pnm'tiform, occasionally almost obsolete, marked by a precedinj;- dusky shade, which becomes broken into spots when the line is punctiform, sonu'tinu's ai)pearinji' as a series of dark, white centered blotclu'S. .Median line traceabhi below the median vein in some si)ecimeiis. A scries of black terminal dots or marks. Orbicular a small yellow dot which is sometinu'is wanting. Kenifoiiu upri<;ht, narrow, yellow, with more or less obvious black points at the extremities. Secondaries scarcely paler than i)rinuiries, with a dusky extra nu'dian and a pale subterminal line; both barely traceable, IJeneath smoky, coarsely powdered, with a dark extra inedian and pah^ subterminal line, the latter rarely distinct. Kxpan.se of winf the American lOntonndogical Society. In the specimens before me w 72 miLl-KTIN .H, rMTKI* STATKR NATIONAL MUMKUM. i;r; l;i-: tluMC is no variation huvc in I lie i>,v |>i'<>v<^ dill'cicnt wiicn larj^cr nuUcrial is iii hand. They are much more powdery and seem sli;ilder, yet with prac tujally the same, niarkiii«s as in the eastern specimens. Renia larvalia, (iroto. 1S72. (Initf, TrfinH. Am. I'.ntiniioloKicsil Soc, IV, 2(i, liitiin. lH7:t. (initr, iniiis. Am. lliilomoloKiciil Soc, IV, .*{;':$. h'rnin. This in all essentials like li. sohrittlis, save that it is paler, mcnc lul(Miiis, and the nniculation rather more distinct. I'iXpanse of winys, lis to .'>(> mm. l.lL' to 1.20 indues. i'iXeept the somewhat j^reater si/c an«l sonu'what paler color I cun not tind any dillercnces. Mr. (Irote njakes the si/e."»U to M mm., whicli is larjicr than any I have seen, in<'lnding tln^ type, I think there must be an crroi' in -Mr. (Irote's measurements of these sp«'ci«'s. ! ha\'e hatl no dillieulty in keepinji' these two forms apart in collections, but can not tind a sin;;le feature ex<'(4)t si/,c and f^rounjl color to se])aratc them. The characters pointed out by Mr. (Irote are not constant. The ranjue of the ])resent species seems to be j^reater, extendin}; to Florida and Texas, but tlieri^ is really no certainty as to whiiih of the two sjn'cics the records refer to. Specimens from J)elaware anton, I). ('., in May, an mm. = ().!»2 to 1 inch. IIAIMTAT.— NovaScotia to West Vir};inia; Central Htates; New York and VVashin<'ton, D. C, in Anjiust. This is a fairly well nmrked species, vary in;; in depth of yronnd color and in the relative indistinctness of the macMilation. The l)ody structure is com|)aratively moic. robust, and the win}; form is less extended apically than in the last pr(M!edinf; spei-ies. I can not find in my specimens the sexual ditlerence in the palpi described by .Mr. (Irote, and think it probable that he luul associated ])()or specimens of owdery, sometimes appearing;' smoky. Head and thorax concolorous. I'limaries with the macnlation variably distinct, .sometimes obscured, more usually evident, sometimes contrasting'. There is a decided ten- dency to discoloration, as in Ii. discoloral is, hut less strongly marked. As a rule the dusky shade ]»reccdiiig the snbterminal line is the most marked character. Uasal line(nident in thecostal si)acc. Transverse aiitciior line distinct, sometimes prominent, even or slightly sinuate, Hltright or only a little bent or obli(pie. Transver.se posterior line irregular, even over the costal region, irregularly crenulate, sometinies punctiform below this point; as a whole nearly i)arallel with the outer margin. Subterminal line only a little ])aler than the ground color; ' Bnll. U. S. Nat. Mus., 44, 388. 74 iUTLLETIN 48, UNITK;) STATES NATIONAL MUSEUM. lint iisiiiilly (U'liiie'l by it distinct diiik ])r<'('edin«' shiulo wliicli some times Itecomes dill.is a series of pale dotlets, all intermediate lorms ocenrrinii. A series of blackish terminal lunules, sometimes reduced t;. mere points. Median shade broad, diffuse, nj)ri,<>lit, vaiyinj;' from this to cntii e absence. ()rbi(;nlar small, rounded, varying from vi'liow to coi!c(»loi'ous, to 1/iaek. IJeniform upright, narrow, paler or cont dorous, deiiiuMl by black scales, iiamaculate, with black points whicii nniy b(^ connected and Ibrm a lunule, or the entire s])ot may be black analer shade, and a i»ale sid)terminal line preceded by a (bisky shade; in each instance varyin.nf;from amy to snu)ky or brown, i)owdery, with aviiriably marked median dark and subterminal ]>ale line. lOxpanse of wings, I'J to I'S mm. = ().()L* to 1.12 inches. Habitat. — Canada to Virginia, to (Jolorado. Canada iind Washing ton. 1). (',. in August; Colorado, August, S«'ptember. Of thesj 'cimens before me no two are alike, and 1 know the range of variation is greater than even my material indicates. In the line of discoloration the tendency seems to be toward a ])ale basal and sub terminal space; but it may be reversed in a larger series. The most eonspiciior.a change occurs in the oidinary spots from yellow to black, and 1 am not at all surjjiised that Mr. (irote made two sjjccies from limited material. 1 have not seen his type, but have seen the speci mens named R. (luiolis m his collectioji, which do not agree closely with his description. Fiom the descrii)tion, which is (piite <'hara('ter istic, I havi- named specimens fully agreeing with it, and certainlv vel'erable to R. pJcnUlnrolis, of which I have seen tlie type. The sex'ial difference between tin palj)! is nmrked in this species: those of the male being obli(|ue and somewhat shorter, while those ui the female are longer and straight. Renia flavipuiictalis, (»cy<'r. 18:-!2. (Jcycr, Ziitrai». Wiill.;>r. Cat. ISrit. Mus., Hcterorcm, XI\, H.-)i», i Uermitiht. ISSI. (Jroic. (jiniidian I'.ntoiiKilojiiHt, XII!. !tl, lltnin. plidh nifi(ii;x, Walker. 1859. Walkcfr. ("at. IJrit. Mim., Heterocera, X\ 1, 107. /hrmiiiw. 18!«. Smith, Hull. U. S. Nat. Mns., 14, :{8S, j»r. syn. litHHnniis, Walker 18;")!). Walker, (at. Hi i-^., Heteroeora, X\l, 108, Ihrminw. 18}«. Sniith, Hull. V. S. . . Mils., 14, :W8, jir. syn. lniHldidlin, (irote. 187:'. (iiote. Trans. Am. Kiitomolouieal Soc., IV, 27, It'cnio. 187:1. (iioti!, TraiiH. Am. KntomoloKieal Soc, I\ , im, = heljnujei. '.■'ilfrdtjcl, (irote. 1872. (irote. Trans. \in. i;ntomoloi;ical .^oc, IV, 27, lUiiia. 187:1. (irolo, Tr;ms. Am. Ilnlomoiouieal Soc., IV, :{()l. I'j. I, (ijr. <).-,, Ihnia. 18s;j. (irote, Canadian l.iitomolo()\vs - i)artie,nlarly liable to be inaculatitm obs<'ure, ditlicult to make out, with no pnuninent leat.M'. Transverse anterioi line dusky, even. ;i liltle uutcurved. Transverse •^.■^.-^^vT :"' ^^^■ ll-4 H 7(1 lUILLETIN 18, UNITED STATES NATIONAL MUSEUM. posterior line narrow, dusky, iu'coinpiiiiicd outwardly by a paler, broader, (Mjually even i)ale Iiii«', the lines varying;' in .ueneral course Irom an even ontmrve to an even, not strongly marked, bisiniiation. Subterniinal line vaj-ue, paler, often punetiforni, an(i frequently in jireat part lost; preceded by a vajiiu' darker shade, which is often broken into blotches. A series of obscure terminal daik marks. There is an obscure, indefinite uprij^ht median shade, Avhich is outwardly diffuse and slij^htly darkens the.outer [)ortion of the median si)aee. Orbutular small, round, yellow, often wantin;.;', l{<"nifor]n nairow, upriffht, yel- lowish, with or \ hout black dots at the extremities, >^)nietimes entirel.\ black. Secondaru^s i>ray to smoky, immaculate or with faint traces of median ami subtermiiml lines. Ueueath somewhat i)alei', coarsely powdered, with traces of a dis<'al lunule, and the two usual transverse lines. Kxpansc of winys, lit; t() .'i- mm.= 1.05 to l.;>() inches. liAur. \T.— (ih'uvrood Sprinjis, Colo., Au.yust and September. 8ix specimens, eciually divided as to sex, arc before me, all from Dr. William Barues. The species has on clos*' study all tlu^ maikinjis found in li. Jinri- puuctalis, so far as the primaries are concerned, and of this species 1 was at first inclined to consider it an extrenu'. variety, ('loser study shows that it is altoyetlu'r a sli<>hter form, with the outline of h. .sr>/>/'m7/.s rather than U.JIavipuiictdlis, and the wings as much drawn out and pointed. Tlu^ wiujjs are uniforndy jjowdered, and the trans verse posterior line is almost obsolete. On the secondaries the median ])ale line is entirely lost, and in fact the winf4S are sonu^timei entirely immaculate, h'iiially, the palpi are nnu-h longer, and in the male arc not at all recurved, but rigidly obli(|ue. Its r«Oatious are thus in reality with Ii. sohrudis and />'. larralis rather than with R.Jfanpunc talisj to which tlu' character of the maculation refers it. Genus HYPENULA, (Jioto. 1876. Groto, ('anadian Eutoinoloiiist, \III, 27. The eyes are nakt'd, large, globose. Front with a ])ointed, scaly tuft. Tongue strong, moderate in length. Palpi long, flattened, upcurved and curving backward, nuu-h exceeding the vertex; second joint much the longest. The scaly (dothing is somewhat loose and directed upward and backward; on the terminal Joint it is truncated or cut otl' at tip, uiaking the J(*int in outline somewhat hatchet-shaped. In fhe male the ])alpi are a very little longer tlmn in the female Antenna' situated on the vertex, moderate in length, in the femah with single small ^ateral ciliations. In the male the joints have moder ately long curved and slender lateral bristles, and on the underside oi the sliaft are little tubercules arranged in two rows, giving rise to small tultsof hail. Ocelli present, close to the compound eye and lu'ar tc i: A REVISION Ol' THE DELTOID MOTHS — SMITH. 77 the base of tlici Jill t«MiMa'. Body nKKlciiitc, scarcHy robust: abrtornen cyliudrii'., in the fciiialo pointed, conical, in both sexes reachinji' to or a httUi exeeedinjif tlie hind an<;ie of the secondaiies. Lens stout, lonj;-, well clothed witli scales, middle and hind tibia' with tlie usual spurs, ill the inah^ the tore tibiae arc somewhat modihed. The member is short, witli a distinct epiphysis and a lonj;- process eciualinji' the basal Joint of the tarsi, tipped with an acute, curved, corneous sj)ine, and covering a groove in the first tarsal Joint in which lies a itencil of line, hair-like scales. The entire leg structure is nuich heavier than is usual in this series, and the vestiture is coarse and loos<'. Wings large, broad, not frail; primaries trigonate, the costa a little depressed centrally, a[tex rectangular, outer margin curved and only moderately obli(pie, making the inner margin oidy a little shorter than the costa. This is a quite strongly marked genus with a distinct resemblance to Iio)noloi'li(( in its appi^arance and habitus, yet with the structural fea- tures which ally it to Henninia. The long, upcurved paljd, terminating in a tlat, hatchet-shaped tip, aic (piite characteristic. The venation is normal, the accessory cell of the prinniries being i»resent. There is only a single species thus far known, and this is of an ol»scure smoby-brown on which all the usual markings are faintly visible. HypFiiula cacnminalis, Walkor. 1855K Walker, (at. Hiit. Mas., llfteroceni, XM, :t7, lliipnia. 181)1. Siiiitli, List Lc])id()i)tcin, 61^, Hnpeniihi. hifvidlin, Walker. 1859. Walkor, Cat. Brit. Miis., Heterocera, XVI, 1'37, Ucrwiiiiii. \Sm. Siiiitli, ISiill. IT. S. Nat. Mum., 11, :W!t, pr. syii. oimcalin, (Jiote. 187(i. (irote, Canadian KiitoiiKtlottist, \III, L.'7, IhjiHUulu. 1891. Sinitli, List Lopidoptcia, median -hade. Orbicular small, round, yellow or white, often wanting. Kini- lorm small, narrow, upright, yellowish, maik.d b.\ a white dot inferiorly ;iiid sometinu'S siipeiiody as well, HecoiidaiicM vurh a somewhat more vcllowish cast, varying in deplli, s\\[\\ a discal lunule, a broiid ni<(liaii f 78 lUTLLETIN 48, UNITED STATES NATIONAL MUSEUM. (lark line and a paler snbtorminal line vaguely visible in most specimens; obsolete in some, and (piite distinct in others. The markinj^s are most evident in the paler specimens, and disappear entirely in the dark forms. r>eneath more grayish, with coarse brown powderin<;s. Primaries with an e:;terior dark line and a partial subterniinal line which is best marked on thecosta; secondaries with the niaculation of the upper side more distincitly repeated. Expanse of winus, 21> to .55 mm. I.I.") to 1.40 inches. Habitat.— iSoiithern States; Florida in April; Texas in May and Aujjust. The species is a marked one, and offers little variation except in depth of ground color. It seems to be not uncommon in its range, specimens occurring iu almost all collections. Genus HETEROGRAMMA, Guein^o. 1854. Giiende, Species General, Deltoiik-s, 1)1. 1859. W'lker, Cat. Urit. Mu.s.. Lep. lictoiocera. XVI, 147. VhuUvuofthanii, Groto. 187:5. (irote. Trans. Am. Entoniolo<;ical Soc. IV, IW. 1881. Sniitli, Hiiii. IJkln. Eutonioloj^ical Soc, VII, (>. Head rather small and not prominent; eyes naked, large, not at all lu'otuberiiiit. Ocelli distinct, situated close to tiie compound eye and sonunvhat rem()\-cd from the base of the antenna', without an evident point<'d IVoiital tutt. I'alpi long, compre? sed, obliipie, and (dothed with upright scales in the female, recurved an(» with the scales directed for ward in the male, the clothing not excessively long in either case. Tongue moderate HI length and strength. Antenna' situated on the vertex, well forwiird, al>oiit two-thirds the length of the forewing; simple in the female, witli lateral bristles iu the male, the Joints fur nished inferioily with tubercles from which arise tufts of long hair. Body moderate or slight, abdomen cylindrical, reaching to or a litth exceeding the anal angle of secondaries. Legs moderate in length, (piite stout; tibia' with the usual spurs. in the male the anterior tibia is very much abJjreviated, anteriorly prolonged into a process which is (jiiite ])rominent and densely scaled, covering also a nuiss of si)ecialized scales. The basal joint of the tar sus is very loug, exceeding the tip of the tibial process, and near it> tip, extending ui)ward, is a peculiar ladle shai)ed appendage, the handh^ (piite shMuler and tlattened, the bowl hemisidierical nearly and fringe 1 at the edges: externally it is covered with pajtillate jtrocesses, whil' inwardly it is clothed with hmg liair. This sanui structure is als i present in I'althis, but seems to be absent in all other genera. Tii ■ wings are broad, rather frail in ap])earance, trigonate, moderately ioiii, primaries with the eosta arched, the apex sharply rectangular, nndd' • of (uite.- tiiaigin distinctly though not jtrominently angulated, a vei \ little exci'vated from that jwint to tluicosta and toward the hind ang'f (piiie obli(pR^. iSecoiidaries rounded, a very little retracted opposi;' ^^ A REVISION OF THE DELTOID MOTHS — SMITH. 79 W the cell. The voiuition of the priinaiies is aberrant, in that the acces- sory cell is wantiii^r, and veins 7 to JO arise from the same stalk, with G from the end of the subcostal. I refer the 8i)ecie8 described by IMr. (Jrote as rhaJcvnophmia to (luenee's ^enns, with whi(;h it agrees so far as the description goes. The genus is well marked and readily distinguished by the characters above given. A single species oidy is lelerable here, my 11. palliijera proving not congeneric on careful study of more material. Heterogramma pyiamusalis, Walker. 1859. Walker, Cat. Brit. ^Iii.s., lleteroocrii, XVI, lOti, Ilevminia. 18!)3. Siiiitli, Hull. 14. U. S. Nat. Miis., IK"). Ilcln(,{j)-(;, Ihrmiuin. 1893. Smith. Bull. 14, U. S. Nat. .Mils., :iS5, j.r. syn. rurUjenu, (irote. 1873. Grote, Trans. Am. Eiitoiin>l()<.;ieiil Sue, IV, 305, I'huUiuitjihana. 1S84. Smith, Bull. Bkln. Entoiiioloirical Soc, VII, (i, Urleroiiramma. 1893. Smith, Bull. 14, T. S. Nat. Mus.. 38.5, pr. syu. (Irround cidor varying from pale testaceous to dark luteous, or even smoky gray, in fn^sh s])ecinu'ns with a moie eculiar sonlid yellowish or tan in old examples. Head and thorax concolorous, abdomen a little paler, with the edges of the segments ringed with whitish. Primaries with the maculation well d<'line, whicii are on one stalk. With both sexes at haml the genus is recognizable at a glance. With the female oiiiy there is a decided resendjlance to llctcrognonnia, but the wings are narr()w, cpiite different in coh)r, and tiie venation is deidsive, if that be referred to. This is the only one of our genera in which the wings are lobed or cleft in the male, and we have only a single species, whicii is hence recognized with the genus. It is interesting to note that the tibial process has become nuich reduced here, though the tibia itself is very much abbreviated. [ have seen a second allied sjjecies from the W\'st Indies, in which the jialpiare more strongly recurved and which have a tuft or fringing of scales on the costa. This is the typical Tortricoden of Gueuee, and not congeneric! with our more northern form. Gaberasa ambigualis, Walker. mi'K Walker, Cat. Urit. Miis., Ilcterocera, XXXIV, ll!»S, Gahcram. j hijidulix, Grotc. 1S72. (Jrote, Trans. Am. Eiitomolouical Soc, IV^, 10."), Tortricodes. 1878. Grote, Mull T. S. (Jcol. Siirv., Vl ."itU, Enlinlnerin. I8i«, Siiiitli, Hull. 41, U. S. Nat. Miis., .m"), i)r. syii. 9 iiKliriealix, (irotc. 1871.'. Groto, TraiiH. Am. KiitoiiKiIojiical Soc, IV, 1()(!, Tortricudea, 1S7K. (irote, Trans. Am. Ijitomdlogical Soc, IV, NiiS, lletrnxjrumma. 1878. Lintnor, KntomolojfiealContrihntions, I\ , 110, 9 hijidallx. (Iroiind color a somewhat pale reddish-brown. Head and thorax ace clearly and evenly tinted, but all beyond more or less smoky. Basal line evident in some s])ecimens. Trans- Ncr.se anterior line ui)right or a little inwardly oblicjue from costa to linid margin, broad, brown, outwardly diffuse, foiniing the most prom- inent ornamental feature of the wing. Transversa' posterior line li i!(ler, rivulous. an ■'', -. 1^ 82 IJULLlVriN 18, UNITED STATES NATIONAT, MUSEUM. streak. A series of blackish terminal dots, soinetimea fonniiifj a nearly continuous line. Orbicular small, brown riuf-ed and white centered often wholly wantiuH'. Kenilbrm narrow, upright, nuirked as a white huiuh', reduced to two white dots, or entirely wanting. So far as tht ormimentation is concerned the sexes are alike, except that in the mal<- the clclt of the i)rimaries interrui)ts the course of the subtermiiml line, this line is much more angulated below the apex, and the shade ]>rece(ling it is blackish at that point. A black spot marks the lowei angle of the upper lobe, aiul a prominent black lunule marks the inner limit of the incision. Secondaries luteo-fuscous, darker in the male, paler at the amd angle, crossed by a dark median and a i»ale subtermi iial line. There is also a narrow, sonu'tinu's interrupted black tenninul line, and a dusky discal lunule, the latter rominent: front smootli, with a distinct intei'antennal tuft. Ocelli distinct, situated close to tlio compound eye and to the base of the antenna'. Palpi long, prqjeciled straight forward ditications. JJody moderate, abdomen conic, cylindrical, slightly or not at all exceeding the anal angle of the secondaries. Legs loi;:, clo.sely scaled, the tibne spurred as usual. In the male the fore tibi •■ is somewhat shortened, with a moderate extended process anteriorly, :int 'f^. A REVISION OF TIIK DELTOID MOTHS SMITH. 83 reaching the tip of tlio rloiif^iitod lirst taisal joint, and not covering ;iny bnish or pencil of liair or specialized scah's. The wings are char- acteristic; the i)riinaries are broadly trigonate, ' le ap«^x acute, the outer margin distinctly angulated at tlic middle, excavated between I hat Joint and tlu; apex and markedly ol)li(|ue toward tlu^ hind angle, riie seccnularies have the outer margin somewhat retracted opposite Ihe cell. The yenation is probably somewhat variable on the primaries. As described by Mr. Grote no accessory cell is present, anmr/i.s. (riouud color light juirplish gray, with a faint reddish sull'usicm. Head, thorax, and abdomen paler, nearly white. Primaries with a K'ddish suttusioii over the costal regit)n, becoming uku-c prominent and of primaries and a seriesof distinct, blackish t(^rmimd luuules. Heneath paler; primaries with the costal and outer nuirpn stained with brown and with an outer line, which is well marked on costa only. Secondaries more coarsely l)owdered, with a discal dot, and the markinjjs of the upper side faintly reproduced. I'^xpanse of win^s, 18 to 20 nun. — 0.72 to O.SO inch. Hauitat. — New York and Texas in .luly; Illinois in May; I'^astern and (Jentral I'nited States. I have never had any lar^j^e number of si)ecimens of this species, and have never seen any reacliinji in size those mentioned by Mr. Grote: 25 mm, which is i)robably an error. The oidy variation apparent in the s])ecimen8 before me is in the {j;round color and the consequent relative distinctness of the transverse maculation. Dercetia pygmeea, Groto. 187S. Grote. Hull. U. S. (iool. Surv., IV, 187. Ihrcctis. Ground color purplish yray, darker than in l>. r/7rm, but with essen tially the same markings. There is a s(unewhat more reddish suttusion through the center of the primaries, but no determinate shading. The reniform is yellow, with a central lunule, and the transverse posterior line is a little metre even than in its ally. Expanse ot wings, 14 t<> 1(5 inm. = 0.()0 to 0.70 inch. Hahitat.— Florida; Texas in July. The smaller size, darker color, and yellow reniform will rea. ritrro. It seems moi-e rare than its ally, but will probably be found in others of the Southern States. Genus P A L T H I S , II ii lnuu-. ISKj. liiibncr, VcrzeicliiiisH, 312. lS5!t. Willker, Cat. iiiit. Miis.. I>t!]). HctcioctTa, XVI, 1.^>1. ( Uiniima, Giioiioc. 18.>l. Giieiit'c, Species General, Deltoides, U5. Mardara, Walker. IH.")!*. Wnlkor, Cat. Brit. Mns., Lep. Heferocera, XVI, 1,57. Head moderate; eyes comparatively large, globo.se. naked. Kmnt with an interanteninil tuft. Ocelli on the vertex, c1o.se to the com pound eye and .some distance back from the base of the antenn . , f^ A KKVISION OF Tin: DELTOID MOTILS — SMITH. 85 iirvtMl, i-ininsil iiidly, L (lota, :in}? in r rusty hitish, Miuliitc « iiiul 11 imaries u outer oarsely faiutly 1*^ astern ies, and . Grotc. aretit in sequent h essen uitl'nsion Tlu' If?- losterioi' K lily (lis )li would ari^ than States, I. Front I ho coin antenn '• wliich are insert(Ml well toward tiie IVonl. Toiij^-u*' moderate. l'al|)i very long; in the (eniale dnceted straifjrht forward, the terminal joint set n(MMly iit ri^i'hf angles to the second and poinlin;; upward; v(U'y Mincli llattened, (1m', npri«;ht scales nnnsnally Ion;;, and on Ihc terminal joint dilated at ti|> ami almost sipnuely cut oil'. In the male the palpi are shorter, re(Mirved, with a nuMohranous appendage to the third. joint, whu'h extends haek to the liasc of tin' thorax ami contains a pencil of line yellow hair, cai)al»le of faiilike expansicni. Antenna' lonjf, exteiui- iny to the ont«'r fourth of the priniaiies ; in the female simple, in the nnd«^ with lateiai Inistles, varying in the species. Le^s htn^and stout ; middh^ and hind tibia' with the usual spurs; in the nmie tlie anterior lejis have the tihia extrenu'ly shoit ; hut with a larj;e ami broad outer piocess, densely ('h)thed inwardly with iony' Inoad scales, and eo\'erin instance, and have no suyg'-stion to oiler coiu'crninji' its ])robable use. Primaries narrow, elongate, the costa depressed toward the middle, (v-nvex before tlui apex, which is acute and somewhat i)rominent. Outer marj>in somewhat excavated below the ai^ox, obtusely an^ulated at or above the middle, oblicjue thence to the inner margin, which is about one-third shorter than the costa. In venation it lacks tlu^ accessory arise nearly togetlier from the end of the subcostal, !> out of S before the apex. The body is moderate, the abdomen slender, cylindrical, extend- ing to or Ji little beyond tiu! anal angle of the secondaries. This genus is readily recogniz(^d by the narrow, angulated primaries and by the peculiar palpal structure of both sexes. No other genus in nur fauna has the peculiar appendage bearing an exy)aiisil)le brush or pencil of hair in the male. The structure of the fore legs in the latter sex is after the Herminia type, though characteristically moditied as above (hjscribed. We have two species which are readily distinguishable, and yet very similar. P. (ingnhilu is somewhat the larger, with rusty, red brown iiiaikings over a more yellowish base, and a yellow patch in the exca- \ ation on the outer margin below the apex. The sub-terminal line has ;i --mall W at the middle. /'. (isopialit! is smaller, darker, m(»re imrplisii brown, the marking l)Iackish, while a blackish patch on the excavation below apex replaces the, yellow of /*. aiKjulalis, and the VV^ of the subterminal line is much !i!ore prominent, usually extending to the margin and completely cut- titiy the terminal space. Structural characters are also present, readily 4 i0 ,.^.. %, IMAGE EVALUATION TEST TARGET (MT-3) w I 12.0 I.I 1.25 us i;£ IIIIIM 1.4 11.6 '^V. % ^ /A o^. Hiotographic Sciences Corporation 33 WEST MAIN STREET WEBSTER, N.Y. 14580 (716) 872-4503 '4 ^ 0 V.A o 6"^ 8r> niTLLETIN J8, UNITED STATES NATIONAL MUSEUM. W: sepaiatiiij;- tlic two. In /'. (iiiniilal is thv male aiitennal joints are moder- ately long, not iiiiirUt'd wlicn . Smallt'i'; iini'|ilisli Ihowii; i\ Itlack ]iiit(li Ixlow tlir apex ol' |»iiiiiari. Palthis angulalis, IFiildn-r. 17!Ki. Hiihiicr. Scl)in(Mtfrliim«" Kiiiui)as, I'yr., (iu'. 107. /'//m/(«. 181ti. liiibncr, Vcr/,cicliiiiss, :!ll.', I'allhix. 182."). 'rroitschke, Schinettuiliui^c Eir.upas, V, 'M\, Ilijpena. 18.52. ircrricli-ScliaotTor, lOiiroii.i'istilid Schiiu^ttorliuni'. 1582. Iltrmiiiid. 1851. tiueiK'C, Species (it'iicral, l)(!lt()L(le^s. i);"), Clinijima. 18.')i). Walkor, Cat. «rit. Mus., ilotcrocera. XVI, l.">2, Palthin. 1872. (iroto, TraiiH. Am. i^iitoinolotrical Soc, !\', 107. CJ(ni;itun. 1873. (iioto, Trans. Am. Kntomological Soc, I\', 30!), r, c(>st:i before the ai)ex is usually a. richei' brown shade, below which le; crossed by a narrow darl: line which is <'oiitinuous witli the 8ul)tei uiinal lino of primaries. A narrow brown Iin3 at base of the frin<>es, which nearly ;ii;ree in color with those ol' the primaries. PxMieath i)alcr, i)o\v(lery, iM'th winys with the outer lines of upper side reproduced, on i>riniaries iiinch less, on secondaries rather more distinctly; secondaries also with a discal sj)ot. Iv'cpanse of winj^s, 22 to 2.~> mm, =().!)() tc 1 iiudi. ilAuiTAT. — Canada in June; Xcw ^'ork, June to Auiiust; District of ('oluiid)iain Afay; Missouri, May and June. This pretty little species is quite (ionnnon throujihout its raujue and comes readily to light. I ts chiet differential features have been already lK)inted out, and the s))ecie8 siiould not be ditlieult of rec(»<>nition. Palthis asopialis, (iii('ii('»\ \H'A. finon('(\ S|>(!cios (icnoriil, !><'lt()i(l('s, IIH, <'htin/m(i. 1859. Walker, Cut. I5iit. Mns.. lI.-t.Toccra, .\V1, l.-)2, I'ulthis. 1872. (irotc, Trans. Am. Kntinnoli.^fical tint-., IV, 108, (Idtnimu. 18VH. (irote, Trans. Am. Hiitoiiioloi-ical Soc, IV, 'M)\), Vnlthitt. Ground color a purplish dark brown. Head and thorax coiu;olorous; Mbdomen a little paler. iMinuiries with the maculation fairly well marked, .sometimes i»rominent. Transverse anterior line single, nar- row, blackish or brovvn, even, outwardly bent over the costa; but as a whole, inwardly obli(|ue. Transverse posterior line narrow, dark, irregularly dentate and angulated; as a whole outcurved, with a sniidl iiulrawing in the submedian interspa'c Sometimes the line is accom- panied by a narrow [)aler shadini';, which, iiowever. is not pro.uiiient. Subterminal lin«' narrow, pale, outwardly oblicpu' from costa, forming a prominent W at the middle, which cuts the terminal s|»ai!e to the outer nnirgin. A narrow, dark, terminal Hue. An oblicjue, broad, median .shade, which is sometimes obscure for its entire course; but more usually becomes prominent, velvety blackisli bi-own below the iiiedian vein, but eneatli, smoky or blackish, powdery, with tiie outer lines of upper si nun. = O.Sf to (l.'fj inch. 88 lUJiJ.KTIN 18, UN'.TKl) STA'l'KS NATIONAL MUSKUM. llAiuTAT.— VV^itli /'. (uiijnUdis. and at same dates. Tliis species is ])erliai)s the less (lominon, especially m the inoiv uoitln'in part of its laiige, and is readily distinguishable^ by its smaller size and darker color, and by the dentate transverse posterior and Hnl)t«'rminal lines, as well as the black i)ateh below the apex. TIk^ renilorm here also is blaek, and often a large Idotch, (littering in I'oriii \n I'.oiu/Klolis the reniiorm is always oblicjue from below outward, while in this sp(M'ics the oi)i)osite tendency prevails, though it is by no means constant. The structural and other points of ditt'erenee have been already pointed out elsewhere. Genus C A P I S , (Jioto 18H2. C}rot»% (^aiiadiim I'.iitouioloj-ist. XIV, 20, 11!) 1882. Siiiitli. Caniiiliun KiUoiiioloj-ist, \1V, 100. 1882. Grotty Piipilio, II. is.-). Head moderate or ratluM' small, front narrower in the male. Eyes rather small, though prominent, globose, naked. Tongue nuiderate. Palpi oblique oi- nearly straight, varying in ^1«.^ same sex, well exceed ing tlie head, bill no* excessively long. Seeoinl ;oint with ratlivi' loose, scaly clothing, directed both upward and downward ; the joint therefoii' somewhat enlarged at ihe tijt. Third Joint less than one-half the length of the second, smoothly clothed, not pointed. T'lont without a pointed tuft. Antenme simple in the ftmale; feebly eiliate in the male; moder are in length. IJody moderate, thoiax luoportionately small; abdomen reaching to, but hardly exceeding the anal angle of the se<*ondarics. Legs stout, smoothly scaled, the orilinary spurs of middle and hind tibia' long, stout, nneipial. Anterior ieinora in the male somewhat enlarged basally and grooved interiorly, but not otherwise modified. Primaries modi'rate, broad, rather abruptly widened at base, the outer margin even, arched, only a little obli(pie, hence the costal and inner margins of nearly the same length. Venatiou normal. Secondaries proportionate. Venation normal, save that o and 4 are often on a stalk, and vein 5 is distinctly weaker than the others. There is only a single species thus far described, and as based on this the g(>nus is readily distinguished from all others by the broad, obtuse wings, which are suddenly widened at base and not trigonate, and by the comparatively short i)alpi. Fiideed, the genus on analysis shows the deltoid characters somewhat obscurely. Capie curvata, Grote. 1882. Grote, Canatliiui Kiilonuilon-ist, XlV,20aii(l 119, ('apis. 1882. Siiiitli, Canadian Kiitonidlo.uist, XIV, 100, (apis. 1882. Grote, I'ai)ilio, II, 18."), Capix. 188;i. Grote. Canadian Entonioloj^ist. XV, (i, Capii^. Ground color a glistening smoky or bronze brown, varying to black- ish. Head and thorax concolorous, abdomen paler, glistening gray, riimaries almost evenly of the ground color to the subterminal line A REVISION OF TllK DKI/roiI) MOTHS SMITH. 89 which is wliite jumI extends quite riyidiy <>hli(|ue or ii little iiieurved Horn the apex to within the hind aii-le. lleyond this line tlie terminal space is more or less sprinkled witii white scales, and there is a white Icrnnnal line. In tlie pah'r specimens tiiere is a traee of a black elavi- form. In most speeiniens th(r orhicidar is visible as a wliite dot, often marked by a few l)Iack scales, and the nMiilorm is marked by a lew white and black scales Ibrminj^' no delinite markin<;s. Secondai'ies even, smoky ^ray, imma<'nlate. I'.eiieath smoky, varyinf? in tinye, in the ])aler speciin;>ns with a discal Innule. Expanse of winj^s, 10 to L'.:> mm.=().8r) t(> <>.!)(> inch. llAMiTAT. — Canada in duly; Maiue, New York, New Hampshire, Northern Atlantic and Northern Middle States. This species se(uns to be not rare in the more iiortluu-n part of its range, and is very readily reco;.;nized. The smoky l)rown filistenin<>' primaries, cnt tonard the outer mariiin l)y the white sn]>terminal line and paler terminal sj>ace, are characteiisti;- am) distinctive ol this species. Genus SALIA, lliihiier. iSlf). Hiilnicr, \'tii'/('iclimss, 3)>!t. Coiohochila, IliiltiKT. 181(5. Iliiliner, Vcr/.cirhiiisH, ;{lt. IS;')!). WiilkLT, Cit. Hrit. Miis., Leji. Ilctcroc-rii, XVI, IS Mailofia, Stt'pliciis. 1827. Stephens, in Curtis' liiitish Insects, l")*). 18.")7. Ledurer. XoctuiiieM Enropos, 211'. Head moderate, eyes i)rominent thonjih not larjie, naked. Tongue strong, moderate in length. Ocelli ointed, outer margin oblique, rounded, leaving the inner margin about one-fourth shorter than tln^ oosta. Venation normal. Legs stout, nornijil in botli sexes. 1'his genus is distinct by the rather short, obli(|ue i)alpi, whi(di scarcely exceed the frontal tuft, and by the pointed, rather narrow wings, with three subpi'.'allel oblicpie trans- verse lines. We have two rather rare s])ecies in our fauna, and one is identical with a luiropean s]»ecies. if the locality on the specimen is correct. Of these, iS. iiit<'rj)utirf(( is the smaller and has the ordinary s])ots indicated, while S. .sdlindin is much laiger an 90 BULLETIN 48, UNITKD STATES NATIONAL MrSEUM. Lcdorer says of the early stages, tliat the larva is uniform velvety jirccii, Avitli but 14 leys, and lives in August iu willows, the moth makiiij;- its appearance in May and rlune. According to (xnen^'e the caterpillar has the incisions yellowish, the head coucolorous, and the stigmata black. ANALYSIS 0|- Till'. SI'KCIKS OK SAMA. SiujiUit; tlie ordinary spots iilwavs iiulifiitcd ami iiHiially well marloMl.iNTKUi'UNci a. Lar}i»;r: urdiiiiiry spots wjcitiiij? saucaus. Salia interpimcta, (iroto. 1S7L'. (ii()t(\ Tr:in8. Am. Entomological Soc,., IV, ill), MacUpn. IS?;!, (iroli-, Trans. Am. Er,toniol(). Neumoegen, esq. Ivxpanse, 22 mm." Expanse of wings, 20 to 22 mm. =0.80 to 0.00 inch. llAiJiTAT.— .Massachusetts to Fhirida; Texas, Arizona. Tothecourtesy of Mr. (irote I owed a type of Salia riij'a, which is now in the collection of the United States National Museum, and 1 hav*' A REVISION OF THE DELTOID MOTHS — SMITH. 91 iilso a specimen o^" aS. intcrpunctafvom the same rejuion. Arizona. There is a little variation in j;roiin«l eolor iind the ;iiiionntot sliadiny- to tin! transverse lines, and this is really all that separates tlie nominal si)eeies licscribed by Mr. (Irole. The species does not seem to he common aii.\ where within its ranj;e, and it is toiind in very few collections onlv. Salia salicalis, Fahriciiis 1794. Fahriciiis, Enli>im>l()jj;i!i Syatiiii. isns. Walker, Oat. Brit. :Mus . H^teroeeia. XVI, Is, Calobovhijlu. ( Ironnd color pearl ^ray, with black, rather sparse ])owderinjiS. Head find thorax concolorons; abdomen more Inteons or smoky. Primaries with three even inwardly obli(|ue fas(;ia, coiisistin;;- of a browMi and a yellow line or shade, the latter tollowinn' tlie basal line, but ])recedinj>- the others. Tlie inner line is eitlier abbreviated on the costal vein or it reaches the costa, bendinji' inwardly an tlu^ vein. The middle fascia ei'ossesat jnst abont the center of the wiiiju, while theonter is incurved from the ajcx to the margin close to the hind an^le. The ordinary spots arecies is not at all beyond doubt. Genus BOMOLOCHA, lliibuer. ISlt). Hiibner, Ver/eieluiisH. IWi. 1S.")7. Lederer, Noetuiiieu EiiiopaH, 211. M('(lhiii)cua, (irote. 187H. Groto, Bull. ISiitl. Soe, Nat.Sei., I, S(i. AI(tciIi!/j}vii((, ( I rote. 1873. Oiote, Bull. BuH. Soe. Nat. Sei., I. 3S. HnhiijHiKi, (irote. 1873. (iiotc, Bull, liuli. Soe. Nat. Sei.. I, :iS. Lederer describes this genus as foUows: ]Morc rol)nst than the pre- vious genus {Pechipof/on); the abdomen shorter, the primaries more pointed, nearer to the following Jli/pemv. Front with a. pointed tuft. l'all»i horizontal, exceeding the head by mcne than its own length; beneath clo.sely scaled, with a knife-like edge above, the terminal Joint small, pointed. Tongue spiral. Eyes naked, their imirgins with stiff 92 IMl.LKTIN [X, UNITED STATES NATIONAL MUSEUM. bristly laslies, Antennii' bristlolike, in the insile with short, evoTiciliic. Tliorax woolly, densely clothed, rather more convex and stouter than in its allies. Abdomen (^IcKsely scaled, with hairy dorsal tuftinfis. Hri'ast and femora Mitli dense, long, woolly ch)thin«-. Tibia- closely hairy or scaly. Willi the above charsicterization our species a^-ree fairly well, save that ther«' is a. very great variation in the degree of the "lashing" ol' the eyes, this being never prominent, and usually practically wanting. The primaries are large and broad, i»roportionat«^ to the seconrlaries, which arc not usually developed, and this charat-ter is really all thai separates t lie genus iVoiii UyptiKt. In all the other essential characters the genus agrees with Ui/peva, including therein the absence of sexual moditications in the mah', except the somewhat more robust body, more woolly clothing, more evident dorsal tufts, and somewhat shorter and mon^ obliipu' palpi. The ])alpi vary in length quite consider- ably, but are not excessively long in any instance; longest in the largest and smallest of the species, which are most aberrant from tin- others referred to here. A vejy distinct sexual difference which has not been luM-etofore ai)preciated is that the males are larger, darker, and «ie<'idedly nunc roimst or woolly than the females. This featnr«' unites species that have been heretofore considered as t," ioiibtedly distinct by all students, including myself, and 1 desire to creditor, ibitler with the suggestion that first iiKliiced me to examine the s])ecimeiis as to sex and the rela- tion of the so-called species to each other. The venation is normal in both wings. The primaries are trigonate; the costa a little sinuate. dei>ressed centrally; the apex a little jn'oduced; outer margin quite strongly outcurved, only moderately oblicine, a little excavated below the apex; fringes sometimes feebly scalloped. We have in our fauna tw-o (piite distinct series. In the first the median lines are irregular, particularly the trans verse posterior, and the median sjjace is decidedly darker, contrasting as against the pale, oiten whitish, siibterminal space. In the second the transverse [losterior line is much more even, at mosi a little angulated, and there is no sharp contrast between the spaces. These features are not to be too strictly construed, for there is quite a diflerence in shading, not only between specimens of the same sex but yet more betsveen the sexes. However, by contrasting B. haltimoralis, of the first series, with female B. achatiiudis^of the second, the differ once attempted to be indicated will be readily ai)i)reciated. At the head ot the first series I place B. vudKdis, in which neither transverse anterior nor transverse i)osterior line reach the hind margin, but unite so as to inclose a rhomboidal dark-brown median space, all tin rest of the wing being decidedly paler. Following this come two species in which the transverse anterior line apparently docs not reach the costa, but starts frojn the base on A REVISION OF THE DELTOID MOTHS SMITH. 93 file modijin voiii aiul <'iirvos ontwiiidly to tln^ subim'dian vein, wliore it IS piacticjilly lost, tho inner niaij;in beinj;;- pair to the transverse poste- iior line, which also is faint in tiiis portion of its course. The nn-dian space is dark brown above the snbinedian vein, eon t rust ini;? with the white. lines defl.osterior line is nearly n])ri;iht, with a single sharp outward tooth opi)()site the cell. B. scutellaris has the median lines complete, white, the transverse anterior outwardly oblicpn?, tiui transverse posterior nearly as in />. hijn- Oalis, but more uiu^ven. The contrasts are not as great as in the other species, yet, in the female esi)ecially, the median space is di.stinctly darker, and in the same sex the subterminal space is white or gray, while it is more smoky in the male. li. ahnHitvalis has the wing more uniform in color, but with contrast- ing white transverse lines, of which the transverse posterior makes a l(»ng ontcurve at its middle, making the medir.n space usually wide. IJeyond this the wing is more or less mottled with bluish white. Ill the second series the median lines are mucli more even, not white or contrasting, while tlu median space does not contrast .solidly with the rest of the wing, the tendency in this series being to lose the lines altogether. Two divisions are indicated by palpal structure, the usual form being stout, obli(|ue, and only moderate in length, while in two species they are straight and very long, e([ualing head and thora.<: combined. Of the tirst division of the second series the best marked is 7^. decep- talis, which has both the median lines i)ale, the tran.sverse posterior with a single small outward bend over the cell, which is not iufrerpiently wanting. In the female the color is (jiiite tioii. Allied to the preceding is />. intidc/dcfolis (Juen«''e, which is based on a female afterwards described as />. ddntiiosdiis l)y Walker, and />. aclia- tiiialis by Zeller. The male has been named />. cidhirali.s by \\'alker and li. profecta by iMr. Grote. It is darker in both sexes than />. dccep- fdlis, the transverse anteriace. This character is constant in both sexes, though often obscured in the male, which is very dark smoky brown, anliter and more obscMire. Tlie iiuilc is almost iminaculate, with tiic linos barely traceable, ex(',e|>t on (he costa, while tiie- f'ennile has the angles (»f the transverse posterior line better marked, but the violet or bluish shade oi' the outer portion of the winjj: «leeidedly obscure, powdery, alto{^etb(r more sordid. B. totcKtu is smoky brown in both sexes, the median lines very sleii der, riviUous, white, fragmentary; tlie transverse posterior marked on the internal margin by a prondneut, oblong, white spot, which distiii guisiies the species at a glan(;e. />'. umhralis is a curious form, dilfering in the moie trigonate pri- maries, the outer margin oblicpie and little arched. The maculation is all obscure, the transveise posterior line rigid and a little outwardly oblicpie, starting just a little beyond the nnddle of the costa. The two species with long palpi are very difierent. />. ((1ictali.s is the largest of all our speciies; but is less robust than the nnile li. made- facidViH. It liiis the transverse jwsterior line like />*. (Iccejttalin, but is altogether a more i)owdery form with numerous ii-regular brown trans- verse striga', which give it a distinc^tive appearance. B. citiita is much the smallest of the species and is i)erhaps nearer to true Ili/prna than anything heretofore mentioned, except in the propor tionately small secondaries. It resenibles />'. loiihralis in having the api>arent transverse posterior line (aossing near the middle of the fore wing. An ally of this latter will be found, ])erhiips, in I'Jr<(,stria mitographu, Grote. I have seen only one of the types which lacks the wings on one side, an'. deveptuUs, but this is hardly sullicieutly good to form a type. ANALYSIS <»K TIIK SI'KCIKS OI' IIMMOMX IIA. 1. Pidpi <)bli(iiu', inodciato in loiiKth, oxcewliiif;- thciioad by little more than its own lt'iii;th :.• I'lilpi istiaij,dit, c'xccediiijj the head by the lou«jfth of lioad aud thorax com billed 7 2. Median lines of primaries not reachiii Transverse anterior line not reaching the eosta; basal sjjaee superiorly brown above the transverse anterior lino, interiorly pale .'i. Median lines normal, reach both costa and inner margin 1 . ^yiif. iJi4iW'i« ^ w A ItEVLSlUN OF THE DKI/lOIi) MoTlIS — SMITH. 95 :i TranHviTHo poHtorior ]iii<< with ,i sln.n;.- ontwiinl Lend ov.r t\w ooll, very incgHliuly iiiid miiikcdiy ()l)li(im' Ixdow iiai.timouams. Tmiisvorso poHtcrioi lino wuli tin ulini|it. Hliarp iuikIo ..ppoHitf tlio coll, lU (!«)iirs() cIhu Il(^•ll•l,v npfulit' <»r "iily ii littlo Kinuato lU.MiOAUs. I. Medjiiu liiH^H iirtviinliir. mmr or loss whito, .oiitiiistin^r, i„,Mliiin H\m'u diiikor tlian tii« rest of tlio winj; 5 Mcdiiiii lines even or only u litM.^ anju'iihitf. not irrcf,Miliir; hiiHiil and m'-dian npace concolorouH, Hulitcrniiiiiil randy witli «tron« contvaHts, oft»m couco- loroiiH (5 5. TnniHvcrHO anterior line oiitwaidly oldii|nc, strongly doutatc; transverso po.storior lino Mharply jjrodiici'd ojipoMitc tin- crlj, irr»><,nilarly Iteiit and Himiato ''el«»\^' S(( TKI.I.AKiS. Trunsvt'rsi- anterior linr irio;riiIar, hardly ohlii|iio; tiansverso jxiHterior lino Mlender, white, sharply delined, widely and rather evenly ,nilati(m on the cell, and oven tliis sometimes wanting i>K(:|''.I'Tam.s. Transverse jiosterior line with a small aiiH;iilation over tlie ctdl and another in tlie siihmediau iiiters|)a(e; nioio rolmst; transverse pctsterior line in tlie male marked; colors in the female bright maiiki'actaI-Is. Slijfhter; transverse position in the male scarcely traceable, eoloralmost nniform; colors ill the tenia h^ sordid souuiin I.A. Transverse posterior line riyid, a little outwardly ohlniiie, starting fnnn nearly the middle of the costal margin i muuai.is Tlie lines lost, or marked by whitt! scales only; the transverse jiosterior line with a prominent, oblong white patch on hind margin tohimita. 7. Size very largo; the wing crossed by nnmcroiis brown striga' kdktams. Size very small; the iiiaciilatioii confused citata. lorax con Bomolocha maiialis, Walker. 1859. Walker, Cat. Jhit. Mas., Heterocera, XVI.S;}, nijiHun. 1870. Kobiuson, Ann. T.ye. Nat. Hist., N. Y , l.\, :^11, Iljiinna. 1872. Grote, Trans. Am. Entomological Soc., IV, lOS, Jli/pcna. 1873. Grote, Trans. Am. Entomological Soc, IV, 30i), liomuhirha. (hound color a pale brown, varying to whitish in the female and to smoky in the nuile. Head and thorax concoloroiisj the abdomen :i little paler. Primaries with the median space a^ rich uniform brown, often velvety in appearance, contrasting strongly v,'ith tlu^ renniinder of the wing, though less so in tliemale. Tiie Uicdian lines are connected inte- riorly; the transverse anterior very obliipie, even, white, extending to the internal vein, on which it meets and joins the transverse posterior line. This is also white, starts a little outwardly oblique, is then prom- inently exserted and then again inwardly oblique to the internal vein, inclosing thus between the two lines a rhomboidal patch, whi(;h is the median sjiace, neither of the median lines* reaching the inner nnirgin. Transverse posterior line punctiforni, white, preceded by blackish spots, a little sinuate and variably distinct, more evident in the male as a rule. At the apex is a paler triangle, inferiorly nmrgined by a dark brown oblique shade, which is frecpienrly broken into tiireeoval blotches, and this shade nearly meets the outv/ard bulge of the nuMlian space. A slender, pale, terminal line. The pah'r shade oi the wing includes 96 miLLETIN ■»«, HMTKD STATES NATIONAL Ml'SF.UM. sill tlir basiil spiK'O, contiinKMl h.'low vein 1 to meet the muiiic Hlimh' from tlicoutt'i portions of tiic winj;-, where it (larken.s toward tU«' ol)li(|ii«' apical i)at('h. Tiie orhicnhir is not nnirked in any of the speeinu'iiH now beloH' me, Init the renitbrni is indicated in some by a few raised bhiek scales, tbrmiii}? a more or less evident Innule. Secondaries smoky pay to lirown, darker in the male, the secondaries with a Jisnally evi dentdiscal Inmde and an occasionally marked median line. lOxpaiise of wind's, L';; to 27 mm.--^(>.1>(l to l.(M» inches. llAiMTAT. -Canada to District (dCoIuiebia; iMinnesota; Iowa; Dis trict of Columbia in -Inne. This is a v<'ry ])retty, very distinct, and not very common species, which is recofiiiizable atonce by thepecnliarshapeof the median space, inwardly marked by the united median lines, 111 liie male the paler shade has just a feeble violet tinj-iiii;-. 1 f i - f^-is— Bomolocha baltimoralls, Gneiu'-e. isr.l. (iiioii(''t', Species (iciicral, Doltoides, 31, Uiipena. ' IH.')!!. Walker, Cat. Hrit. Miis., lli'terocera, XVI, 31, Htipena. 1S7(). h'obinsoii, Ann. L.vc. Nat. Hist., N. Y., IX, 81(1, Ihiiihid. W2. Oioti', Tians. Am. KntoinoloKi'al Soc, IV, 102, Hiiptiia. ISTIJ. Groto, Trans. Am. HntonioloKical Soc. IV, IJOi), Homoloma. IH1'.\. (iioto, C'ana, lltipem. 1870. Iiohiuson, Aim. Lye. Nat. Hist., N. V.. I\, HIO, pr. .syn. 1873. Grote, Canadian Eut<)nn)l()>;ist, V, 226, ju. syn. Iiiciiiionii, Zeller. 1872. Zcller, Veili. k. k. Zol. Hot. (ies., X\II, 1G4, j.l. ii, lifj;. 8, Hmwutt. 187H. Grote, Canadian KntomoloK'^t, V, 22(5, pr. syn. Ground <()lor brown, varying in sliade. Mead brown, with gray scales intermixed, the latter sometimes i)r«'domiiiating. Tliorax with the collar brown, gray tipped, dorsum brown anteriorly, posteriorly gray; sometimes tln^ entire thorax gray, and sometimes entirely brown with a gray admixture. Abdomen fuscous. I'rimaries with the median space dark brown to blackish, this shade extending through the basal space and obs(;uriiig the transvei\se anterior line, which is I'aintly marked (»ii the costa. The inferior portion of basal si)ace is more or less white powdered, this pale shading extending beneath vein 1 and connecting with the similar shading beyond the transverse posterior line. The transverse anterior line extends api)arently from the costa at the extreme base of the wing obli(|ueIy outward to the subniedian vein at one fifth of its distance from base, then bends backward and downward to the margin, very feebly marked below the vein. As a matter of fact, the true transverse anterior line is superiorly obsolete or only traceable, and a longitudinal line joining it below the cell gives afaLse impression, which is conveniently utilized for descri})tive pur- po.ses. The transverse posterior line is black,^ followed by a white line, A ItKVlSlON OF THE DEI/roiD MOTIIW — SMITH. 1)7 ,11 1 1 (I this ill fiirii by a fiiiiitcr yj-llnw lirowii liiu'. Kioin ilir costu it is iitwanlly <>l>li(iin> witli a maikcd inward ciirviii;;- lovriii ."», tlicii iH'iuly viiai},Mit f(t vj'iii <;, Inniiin-aiiohi use spur aihl -;i<':illy .)hli(|iir iiiwaidly, iiiK'ciuallv iiiaikt'd on tiic veins, and rcarliin;-- tlif iniu-r niar;iiii cloao tle female in his own collection, and Walker's type of />'. I» iiit/Holis is also a female. Zeller's type of li. laci- niosu was a full-marked dark male. i8r.il. 1870. 1872. 187:!. 187:5. 1872. 1873. 1881. I8!»3. 7S0: Bomolocha bijiigalis, W'alUnr. Walkor, (Jiil. Hin. Mils., Ilt'tcroicra, XNI, :>-', Ilnpeiui. liobinson, Ami. Lye. Nat. Mist., X. Y., IX. :!11, Ihjpnui. Gioto, Tr.iiis. Am. Kiitoiiiolo-iiiral Sue, IV, KW, Uijinna. (Slot*!, TiiiM8. Am. Kntomoloiiii-al Soc, 1\', :!00. i»I. i, li.u. tKi, lUmolocha. Orittc, Canadian Kntouioloj^ist, V, 2l'ti, Houioloclui. 2)aUiaUs, Zeller. Zeller, Vorh. k. k. Zool.-Bot. G<'s., XXII, IGC., pi. ii, (ig. 0, Hiiiiuki. (Jroto, Canadian Hntomolojiist, V, 2l'(i, pr. syii. frcUtlix, (Jn.to. (Jroto, C^anadian Kntomolof^ist, XIII. i:{;!. nomolochii. Smitli, Hnll. I). S. Nat. Mum., It, :W1, pr. syn. l>_Xo. 48 7 m ' •m,s ,y^«k.' ' *",' ''; 'i.fi"*w;.-*8V- 98 lilLLETlN IS, UNITED STATES NATIONAL MUSEUM. (rrouiid color brown. Iloiul aiul thortix coiicoloious, abdomcii more i'iis(;oiis. Primaries witli tl.e median si)aee brown, tlie surroundinj; iim! mariiinal si-aces wliitisli to i»ale brown, often with a blnisli or violt i shading. Transverse anterior line transformed into a curved white line from base to th.e internal vein, alon^' wliich it is continnetl tf) the transverse i)osteri()r line, ieavinj^' all below this line pale, to Join tlic paie shade beyond the transverse posterior line. Transverse posterior line black, followed by a white line, ihese lines lost in strongly con trastinj;' specimens; iiprijuht or nearly so, with a usually a<'.ute, rai;'l,\ obtuse, outward tooth over the nu'dian vein, and sometimes a. more oi less marked, never strong', sinuatiou thence t;> the nniryin. Subter minal line punctilbrni, a little sinuate, coniposed of white scales pre ceded by i)lackish, somewhat indelinito spots, and beyond this the wim; is a.uain somewhat washed with brown to the niarji'in, darkeninj^ to a more or less ])rominent ol)li(|ue rtubapical streak or mark, the ajiex ol the paU'i' p(»rtioH of the wing, '^'he ordinary spots are variably dehneil by ni)rijiht black scales. (Secondaries uniforr.i. smoky fuscous, lieneath. somewhat reddish ji'iay, jiOwdery, witha (H>ninion faint extra median line, within which the priinaries are dusky; secondaries with a '. fccialis. In the wing form this speciis which so nearly resembles H. htdfimorxlis in type of marking is quit.' diffei«Mit fium ''.. Tlie primaries arc bioad, the <'osta (piite arched, flu outer margin broadly outcuived and only a hfthi oblique; the excava tion below the ap«^x bart'ly marked. Bomolocha sciitellaiis, (iml.c. 1S7;>, (iroif, C;'M;i(liim Entoiiioloj-ist, \\ l'2"), liomutovha. ecimcns. \\)(i\ usually [taler, interiorly marked by an oblicpie dark (;r blackish sluule, usually divided into two black spots :;:id occasionally almost wantiuf;-, in tlu'. latter case the ai)e.\. beinj;- nearly concohnous. A series of terminal lunules, son\etimcs lbi'nnn^>' an ahnost eoi'.tiiuums line, preceded Dy variously obvious pale or white lunate spots. Ordinary spots black, composed ot elevated scales — a small dot for the orbicula'-. an ui)rijiht line for the reniforin. Sec- ondaries varyin<4 from i)ale fuscous ^vny to dark smoky brown, iinmacu- hite except for a broken black teriiMual line; the frinjies cut with yel- low. I>eneath ,uray to smoky, pow«leiy, with an extia median line and a discal lunule, wnndi latter is usually ol)S()lete on the luimaries. l'jXt)anseof wings, 27 to.>2 mm, = 1.10 to l.-'^O inches. Habitat. — Canada to District of Columbiai; westward to llritish Columbia; Central States, Canada and >\!w York in Juiui; District of (■olumbia in Au};ust. This species dilVcrs at once, from all those previously described by the complete transverse anterior line; but this is yet very oblnpie and cspei'ially in the female tends to become lost (»n the internal vein, and when the pale shade partially invades the median space l)cl<»w this vein th',^ resemblance to H. bijiij/d I is Wvonivs marked. Thcsexualdilfer- ciice in this species is stroni;ly emphasi/,einediate between B. haUimorHiix and II. hijiK/tdis. The eosta is scarcely arched, the apex is pointed, the outer inary:in even, obli(|ue, a little rounded only. In the male the i>rimaries lire wider than in the 'emale. 100 lULLKTIN 18, rXITHI) STATES NATIONAL MUSEUM. Tlic species seems not rare in the northern and northwestern part <»i its range. Bomolocha abalinealis, Walker. 185!). Walker, Cut. Hrit. .Mns., Heterocera, XVI, 31, Hypena. 1871'. (Jroto. Trans. Am. Entomological Soc, IV., 102, flypena. 187:5. (iroto, Canailian Entoniolojiist, V, 22(5, liomolocha. 18!)1. Dyar, Canadian Entomologist, X.\III, l.">7, larva. Ground color a rich daric brown, varying to smoky. Head and thorax concoiorous. Abdomen fuscous; the edges of the segments feebly i)ali' ringed. Tiimaries ([uite even in color, the prominent white lines relie\ ing the uniformity. Transverse anterior line even, slender, white, witli two outward angulations. A white line from base to the transverse anterior line at its middle, below Aviiich the basal space is white pow dered. In the male this is all obscure, and sometimes quite lost. Trans verse ]»osterior line double, white, the intervening si>ace quite broad and of the ground color, in course a little irregular, but with a great central outcurve or bulging, much widening the median space. Sub terminal line white, inwardly oblique until it reaches near the trans verse i)osterior line, with which it runs rather closely parallel for the remainder of its course and with the outer line of which it is connected by white lines on the veins, cutting the subterminal space into brown spots, the largest of which are on the costa and internal margins. Ai)ex i>ale, <»fteu white, interiorly i: U'ked by a more or less evident brown or black obliciue sliade, below which the terminal space is often more or less white, gray, or bluish marked. A series of brown terminal luuiiles, oeyond which is a pale line at the base of the fringes, which latter are cut with yellowish. Ordinary s])ots black, small, marked b\ raised scales, as usual. Secondi'iies uniformly fuscous orsm«diy, witii a darker terminal line. Fringes with a yellow line at base, a blackish interline, and wliitish tipped. Beneath reddish gray, powdery, with ii common outer line within which the primaries are darker; secondaries with a anse of wings, LT) to 32 mm.=l to 1.30 inches. llAiMTAT.— Canada to Middle and Central States, June to August. This is an easily recfognized s])ecies. The contrasling narrow whiti line, tlu^ transverse posterior so strongly curved, and the cutting ot the subterminal space are characteristic of the species. The male is much the larger and more robust, the ditlerence m all resi)ects(piite a- marked as in />, scufellaris; but there is less ditterence in theornauieii tation. While the male is darker and more sordid as a whole, the whitr rather dirty, yet there is no greater ditference or lack of contrast. Tin wing form is most like that of /.'. mannlis, the female rather broadei and more obtuse, the male with somewhat more pointed apices am. more oblicpie outer margin of [)rimaries. The s]>ecies is not a rare on- and is even locally common. A REVISION OF THK DELTOID MuTHS — 8MITH, 101 Bomolocha deceptalis, Walker. 1851). Walker, Cat. Miit. Miis., Hetfiooeiii, WF. ;{(), Htjpenn. 1872. Grote, Trans. Am. Entoinoloj^ical Soc. IV, 1(U, lljunua. 1874. Orote, Hull. Hurt. Soc. Nat. Sci., II, r.l, Mucrhnjuna. jteranijulaUH, 1 larvoj'. 1875. Harvey, Hull. Huft'. Soc. Nat. Sci., II, 28:5, Jiomohxha. 1893. Smitli, Hull. 11. S. Nat. .Mas., 41. •S'SA^Ii. damiiosaHs. 1893, Butler, Eiit()inoI<)im. l.L'O to 1. !(► niches. IlAHiTAT. — Canada to Virginia, to Central States; New York in July. This is a common species and readily recognizable in both sexes by the very even, jmle median lines, the outer nearly ligid or with only a feeble angulation on the me. ilahiiiosaJis, Wsilker, and sugyostod tlioir identity with />'. (leccptaiis, without rt'co^ iiiziiig tlic fact that the diltereiices were sexual. Mr. Uutler afterwards disi)iited my references to />'. damiiosalis, and Judging from Wallun's des criptiim he is correct, lie also suggested the sexuiil relation of />'. prran iluhdiH to //. ((cceptalis, and in this also he is right. In the P>ritisli Museum the specimens were mixed, and 1 must have taken as type si)ecin)en of Walker's 7>. dmnnomhs one not entitled to rank as such. I cau uot explain my error in any other way. Bomolocha madefactalis, (iiieiK'e, ISol. (tihmu''o, Spticios (!«Mi«r;il, Dcltoidos, ;?.">, Ili/iieiiu. iJSoit. Wiilkcr, (at. I'.iit. Miis., Hetcroccia. XV, ^^'^, lli/pciia. 1872. (Uotc, Triiiis. Am. Hiitoniological Soc, IV. WA, Ihjpena- 187H. (Jrotf. ranadiaii KntoinologiBt, V, 22(), liomolocho. achalinaliH, Zellor. 1871.'. Zeller, Verb., k. k. Zoo), liot. (i.-s., X.XIl. IfiS. IM. II, li^ .7, Ihipevn. 1873. (Jrote, Canadian Kntoinolo<;ist, V, 'J-'il, ]>v. syii. 1881'. . Walker, (.'at. Krit. Mns., Meteroeera. XVI, 'My, Hjipena. im^. Smith, Hull. U. S. \at -Mns., 44. 3!t3. liomolocha. (•aduciilis, Walker. isr>!t. Walker, Cat. lirit. Mns.. Heterocera, XVI, ;i."), Ihjpinu. profcitii. (iretc. 1872. (irote, Trans. Am. Kntoniological Soc. IV, 104. Ilijpena. 187:'.. (ir female. Tiansverse i)osterior line slender, ]»iile, princi ])ally deiiiied by the ditterence in shade between themcdi'an and siib terminal spaces, its course upright, or nearly so as a whole, with a little outward angulation over the median vein, and another in the sub median intersi)ace. Subterminal line pale, vague, broken, sinuate sometimes marked by dark i)receding black dots, but nuu-e usually In a vague iiulcHnite' shade. Ajtex moreor less pale marked, below whieli is ;iii obli<|ue darker shade more or less obvions. l)nt never promiiu^i' and sometimes entirely wanting. A series of small terminal (h)ts whicl! are often wanting, or in the male not visible. Through the outer pov tion of the median si)aee it darkens somewhat to the transverse poste rim* line, forming a sort of median shade-band. Ordinary si)ot indicated by black scales as usual. Secondaries luscons gray brown A REVISION OF TITH DKL'J'OID MOTHS — SMITH. lo;^ to smoky black; in the feaiale often with a vaj-uc discal hiiinhi, in the nuUe ininiaciilate. »*>en('ath, ashen to smoky, witli a more or less marked oat^ir line and «lis(!ai Inniih' on all winjrs. Expanse of \vin<>s, L'l to;iL* mm. =<».!»."> to l.;{(> inches. Habitat.— Canada to Texas; Central States; .South Dakota; Dela- ware in .June.tJ Of the specimens before me from the United States National Museum, one is marked No. 2,S4i, Sept. 0th, '82, and this is an undersized female, expamlinj; 24 mm., or less than an inch. Few specimens expand less than 28 mm., and .U) mm. is about a fair averaj>c expanse. This expla- nation is made in view of the fact that /.'. sonlidnht resembles this species in the female so nearly that errors are possible, and si/e is an important factor in distinction. A second specimen from the Xational Museum is inarked ''Larva on Walnnt, pupated Aui>. 12, \S3. Issued April Ki, '84." This specimen is a full sized male. The sexual ditfer- ences in this species are stronoly marked, the dark, robust, broad- winyed male Ixiarino- little resemblan(ie to the ligiitcr, more frail female. To Mr. nutlerbelonjus the<'reditof pointinj^'out this relationship, which had not been theretofore suspe<'ted. We ha\e in the male, which is best known as lli/pnio pm/crt'i, the most robust of ()ur species and the broadest winj^ed. It is a . madefactnJis is sufficiently marked to justify placing it as a small, somewhat faded specimen, and the dill'er ences are really oidy comparative. The size is smaller, 25 mm. being the average, the body seems more than proportionately slighter, and the costa seems a little more arched, the outer nuirgin more rounded. In color it lacks all bright or rich shadings and has a dirty luteous tint, whih' the bright violet or gray tints of the former sjjccies are replaced by a sordid gray with a faint bluish tinging, and this even is much reduceil or almost wanting. The transverse posterior line is decidedly more angulated, and the siibterminal line is more distinct and more continii ous. With a fairly good series at hand there should be no difficulty in distinguishing the species; but isolated specimens may in some instances be doubtful. The species seems less abundant than its ally. The ty])e is in the Philadelphia collection, a fact I was not certain of in my catalogue. Bomolocha umbralis, Smith. 1«84. Smith, Hull. Bklii. Entomolo^rical Soc, VII, J, Bomolocha, (rround color dark chocolate brown. Head aiul tlnn'ax concolorous: abdonu'u siiu)ky or blackish, like the secon. hnlti- momlis, but the wings are shorter and broader. It ditfers from all others of our species, save Ji. iorcnta^ by tlu' want of a paler apical space, and from all by the ]jeculiar upright median pale line, which at lirst appears like the transverse posterior line. The S])ecimen uow belbre me is a male and resembles the tyi)e which is in the United States National Museum. Bomolocha toreuta, (J rote. 1872. (irotti, Trans. Am. Entomological Soc, IV, 24, Hypena. 1873. Grote, linll. MnH'. Soc. Nat. Sci., I, :!8, Kuh>ip>na. intenmliH, || K'obinson. 1870. Kobinson, Ann. Eye. Nut. Hist., N. V., IX, 311, Hupma. 1892, Grote, Trans. Am. Eutoniolojfical Soc, IV, 24, pr. syu. (iUtisi(/)ialin, Zcllcr. 1872. Zellor, Verli. k. k. Zool. Hot. Ges., XXII, 463, Hiipnut. 1875. (irotc. Check Eist Noctnidie, 4.j, pr. syu. Ground color sooty (»r smoky brown. Head and thorax concolorous; abdin is (juite uui^^«e in the ^enns as re])resented in our fauwa. There is no difference in macnlation \)etween the sexes, and the dilVerence in size is not jireatly marked. The nnile is more heavily built, however, and the vestiture is more shaggy above and more woolly beneath. Bomolocha odictalis, Walkrr. lS,-)!». WiilUcr, Cat. Ihit. Miis., HottMow^ra, .\VI, L.'8 Uypcna. IHiin. Siiiitli, ItiiU. V. S. Nat. Miih., U, 'M\, Bomolocha. 9 rvllifcrd, (irotc. 1S7S. (ivotc. liiill. 15iill. Soc. Nat. 8ci., I. S7, i»l. II, lifj- 7. Mecondaries. On the secondaries there is often a broad, darker margin, and this is sometimes indicated on the primaries. A REVISION OK THK DF.LTOIK MoTlIS — SMITH. 107 li;xj):iiiso <»(■ Winers, .'{0 to .'«) nun. l.'JO |(. \.r,r, mkIk's. H A H1T4T.— Canada; .New York in Inly; Noitlnin ami Eastern States. This is the largest of onr RiKMiics in expanse of winj>s, thonj^li not so robnst as male /;. matlcftictalis, and seems U) be conlined to a northern lan^e, none of my specimens bein«- from any h>eality mach Houtii oi* Albany, wliile it seems to be scarcely (!onnnon anywhere. Mr. (irote, in statin"- th" (iiHerenccs between Ins />'. Icni'ujinoHH and /;. rrllijh'a, very fnlly detailed the dillercnces between the sexes, for snch is the I'clation these specjies bear to eiicli other. The male {hntiflhiosa) is JMrj^er, somewhat more robnst, and the eohu's are dnll, the contiast little marked. The species is peenliar by tlie rivnlons, In »vn, transverse strij,'a% and by the lonj--, strai<;lit i)iilpi, wlneh scarcely ditl'er in the sexes. The apices of the primaries are nunc than nsually pointed, an<■»« iiloumlis. WM. i;iitl.w. Kiiloiiiolo^^rist, XXVII, 50, au ttp. (list. IrilKhrrdlin. ZcUiM'. ISTl'. Zcllcr, \'(!rii.. k. k. Zool. Hot. (ics., XXil, ]il. ii. \\etween this black line and the median line the dark central i>ortioii ot the wing is bounded. Median line pale, dark margined inwardly, outwardly obli(iue to vein .'5, with a small anj;le ou the cell, then inwardly oblicpie, with little incu''ves in the intersi>aces. Ueyond this line a bluish gray shade suffuses the space to the subterniinal line, cut only by tiie obli(iue dark shade from below ajH^x. Transverse jiosterior line dusky, followed by a ])aler-shade liue, even oi feebly liinulated, somtjwhat dilated on the costa, in general 108 IIULLKTIN IN, I'NITKI* STATES NATIONAL MIISKUM. conisrwitli !« vcryevon ornot <,n(';if oitlcmvo. Tliis line isof'ton obsnii* . anil (lie paU' line is ii<'('«'|)t<'(l lis the tinr tninsvcrs*' postt^ior Iiih': wliicli it is not. Siibtcrniinal Imr \\iiitisli,«l('nticiilal(', a little, iiiarlu'd by pic ceding black scales; soini'tinies iiiterniptcd. Three wliito eostal dots before tlie, apex, wliieli is wiiitisli or pay. An interrupted blaek ter minal line, ijreceded by a white line. Frmjres usually lonji, brown at base, with a black interline; smoky at tip. The ordinary sjxits an coinjmsed of small patches of elevated scales. Secondaries I'uscous to smoky or blackish, immaculate. Ueneath j; ray to smoky, immaculal< except i'or a blackish terminal line and a white anteapical costal blotcli on i)rinniries, which is Irequently absent. Ivxpaiise of win},'s, 17.") to 1!> mni.=0.7t> to (),7t» inch. IlAniTAT. — New York to Texas; Florida; Illinois in Aujiust and October: Texas in .luly. A specimen from the United States National Museum is marked "No. 2r)84, on Vrnio hihiata; Iss. March 21), 1S82." This little species is not (common in collections, thouj-h probably not rare in nature. Its synonymy, unfortunately, is scarcely settled. In my studies in the British Museum 1 touiid a specimen which I took as the type ot Jlt/jH'iia ira/il (tin. Delt., 20). The description is fairly applicable except as to size, Ouenee giving' 25 mm. for the female, Avhile no specimens I have ever seen exceeded 10 mm. Yet Mr. Ibitlcr may prove to be ri<>ht when sufficient material is at hand. The species is the smallest in our fauna, in ludicrous contrast to tlu only other species Avith long, straij^ht palpi. The oblique line of elevated scahis and the false, pale, transverse posterior line are characteristic featnres, and distinj^uish the spi^cies. The male is a little more robust than the female, but I have noted no other differences. Bomoloclia aniiulalis, Orote. 1870. Groto, Clicck liist Noctnidii', 45, Jiomolorha. "This brown and light purple Texan species differs by the sagittate, pale, subterminal line becoming white at apices, and followed by dark mar'vs. A line white line bordering inwardly the dark line on the terminal margin. A dark diffuse shade from the disk crossing the sub terminal line and extending upwardly to apex. Transverse anterior line dentate; transvese posterior line continuous and nearly even. Beneath th«^ apical pale dots are prominent. Beltrage No. 213, expanse 20 mm." A REVISION OF THK DKMOII) MOTHS — SMITH. 109 l>lotcli The type in the Hiitisli .Miiscuiii rcinesi'iit.s ii siiecies I had not pre- viously seen, and is not represented in iuiy eolhction hefoie me. Mr. Grote places it between /.'. (iholinrtilis and Ji. ((vli<(timU.s {made- favtfilis). Oemis LOMANALTBS. (iruto. IWl (Jrot.', Itiill. hiiir. S..C. \!it. Sri., I, i:{. Head distiiiet,even somewhat proMiinent. Kyes huge, naked, jjlohose, prominent. Front (piite nariow, with a pointed interantcnnal tntt. Ocelli distinct, sitinited haHway betwt'en the base of the antenna- and the posterior limit of the head. Palpi lono-, straight in the female, a little ol»li(pie in the male,e(iualin'i in lcn;;th tlie head and thorax coni- Itined in the former, and only a little shortei' in tin- lattei. Antenna* simple in l>oth .sexes, males with small lateral ciliations. Thorax small, abdomen sli<;ht,cylindrical, more conic in the mah', ernialin';- (»r sli-^htly exceeding- the anal an-;le of the secondaries, with snnill truncate dorsal tufts. Le<»s Ion};-, moderately stout, clo.sely scaled in both .sexes, with- out special nioditication in the male. I'linniries pointed, the apex acute, outer margin very obli(|uc and oidy a little curved, eo.sta a little depressed centrally. This genus is very doul)tfulIy distiiu't from liomolorlia, ditlering really only in the wing form. The pali)al character relied on by Mr. (Jrote is not only variable, in the specimens, but is actually paralhded in liomolocha. Vet the insect does convey a somewhat distinctive impression, and I have therefon' retained the genus, the more readily as it seems to be .somewhat internu'diatc between Bomohx-hti aiul Ihipctui. The single species has essentially the markings of />'. Ueceih talis. Loniaualtes ediictalis, Wullui'. is.'.it. Walker, (at. IJrit. Miis., Ifcterof.T.i, .\VI. ;i(;, lli/priiu. WXi. Smith, r.iill r. S. Niit. Mils.. II, :i!lO. l.omiiiHilhx. Iiiluhm, (ii'oic. 187S. (irote, Hull \U\t\. Hoc. Nal. Sci.. I, II, jd. 1, li;>s. lli, i;!, /.oiikiikiUvx. • 189a. Smith, Hull. l'. S. \al. .Miis., 1 4, liilO, pi. .syii. (Iround (M)lor a ]>('arly .gray, with a more or less marked brown .suf- fusion, deei)est and most inark<'d in the mule. Head and thorax con- colorous. Abdomen i)aler, fuscous giay or yellowish, the edges of the segments narrowly pale marked. Primaries with the space beyond the transverse posterior line more or less bluish gray, interru])ted by a dark shade preceding the subterminal line and anotiier which extends along the outer margin, leaving a pale apical sj)ace. Transverse anterior line rusty yellow, the ere- ceding- dusky shade, somewhat outcurved in the central part of its I 110 Bri,I.F/nN IK, UMTKI) .S'I'ATKS NATIONAL MUSKUM. course. Occiisioiiiilly Murk snih's, nioro or less inasscd into loose spof>. also ;u('C(mU' the line and liullu'r drliiu' it. Tlic t»Miniiial 8|>a(r«' darken > beyond tiiis line to tin* nnuj^in, but leaves the apiial portion free and pule. A brown terminal line tollo\ve«•. Nat. Sci.. I, iW. Head moderate in si/e, front very narrow, with a pointed tuft. Kyes large, ])rominent, globose, naked. Ocelli distiiuit, situated (lose to tin- (romponnd eye and midway between the base of the antenine and the posterior angle of the eye. Tongue moderate. Palpi moderate in length, decidedly shorter and a little oblique in the male; longer aiitl straight in the female; the terminal Joint very short and obtuse in both sexes. An.(^nna' long, extending beyond apical third of ])riniaries; simple in both sex«>s, the male linely ciliated only; in.serted v. .11 for ward, almost on the front. I'xtdy moderate in the female, robust in the male, the thoracic vestiture scaly, a little loose in both sexes, perhaps a: little more prominently so in the male. Abd(»men conic, (cylindrical, extending to the anal angle of the secondaries, (|uitt! prominently tufted on the dorsum. Lc^gs quite robust, moderate in length, the spurs oi the middle and hind tibia- not excessively long. Under side of bod,\ somewhat woolly in the male. Wings large as a wh- A UKVISION OK TIIK DKi/miD MOTHS — SMITH. Ill moK niiiiKin of priinmies, wliu;!. is iiwurvnl Ldoi.. aii.l makes |>n>iniiinit liio liiiid ati^lo. From llomolnvlu, tlio <.»mmi.s diners in the (orm of tlie i.rii.iaries and in the proportionately hioad seei.ndari.'s. It is thus intermediate in nniiiy characters between linmoiovho and /////>< «f», while it possesses rond)inatioiis peculiar to itself and siimcient toantiiorize it an valid. Plathypeua scabia, Fabiicins. 17!ti. I'ftliriciuH, Kiitoniolojriu SvHteinnlica, Siippl., jV, lis, llyhlmi. \^:A. (JiiuiH'o, Species (Jcii'T.il, Deltoid, jj, 10, H,ii„ii,t, IK>[\. VValker. Cut. Itiit, Mmh., ll.lri(.c.Ta, XVI, ;i|. Ilinu-iin. \X12. (irotc, Trans. Am. i:nt(iiii(il(i;riial Sor., IN , Kc', H,)i„iii(. 1873. LiiitntM", Canadian KiiloinoloKiHt, V, HI, llnimia. iHT.\. (iiotf, Itilll. iliiir. Six'. \;it. Sei., I, ;iH. I'htlln/pviia, ISSO. K'iic.v, ,\nirri.an IliitoMMdnjiist, III, s, lliipiiia. 1«80. Cotjiiillott, Canadian Kntoniuionist, .Ml, |;{, larva. 1881. C<)(|nill(4t, Canadian KntoniolonJMt, XHl, IM, larvu. ervctdlix, (Jnent'c. j 1854. Oiioni'-n, Spt'cdeH (}. Walker, (at. Mrit. Mas., Ileteroeera. XVI, 3.5, ^U. trerliilis. ohexitViH, Stephens. 182!). Stephens, lllnstrali.nis Itritish Knloniolojjy, llanst., IV. 11, llypina. 1859. Walker, Cat. Hrit. .Mas., IIeteror. syn. (hoiiiKl color a dark i)urplisli or smoky brown. Head and thorax coiicoloroiis. Abdonieii more smoky, like the secondaries. Primaries dusky to the transverse posterior line, then v.Mth bluish powderinjis, which scarcel.v relieve tlie somber tint in the male, but are quite con- trasting in tJM^ female. In the latter se.\ the inferior half of the median space often becomes shadcl with yellowish red-brown, sometimes quite (VMitiastingly. Transverse anterior line red brown, preceded by palt^ in the best mark«'d specMinens, outwardly bent, with three long outward angulations, rarely complete, and in the male quite frcjinently entirely ob.solete. Transverse posterior line black or brown, outwardly bent over the cell and almost rigid beneath. The line is marked through the lower part of its course by eh'vated scales, which are most i)rominent on the inner nnirgin. yubterminal liiu- interrupted, pale, i)receded \,y black spots, rather evenly bisinuate, often quite contrasting in the female, and tt8 inconspicuous iu the male. A browu terminal Hue, which is rarely I"? .1 ..''- 112 BULLETIN iH, UNITED STATES NATIONAL MUSEUM. interrupted, ])i('('0(le(l by imdelineil bluish luuules in the interspaces. Ill the male the apex Is blue powdered, the terminal spaee else (piite even. In the female the apical pateh is more contrasting, interiorly limited by a blackish streak, the terminal space being irregularly and variably mottled with bluish brown and biack, ()pi)08ite the hind aiijile is a longitudinal black mark, which crosses the subterminal line, rsuali.v a narrow black line connects the median lines in the subine diaii interspace, and another connects the (udinary spots, which are much reduced and nsarked by black elevat(!d scales. The basal apace is also sometimes blue powdered or inferiorly brown. In the male the oi'diiiary spots are sometimes hardly evident. Secondaries deep smoky brown, varying a little in tinge toward l»cvr:i or bluk. Beneath, uni loriiily brown or blackish; the secondaries with a more or less evident discal si)ot. Kxpai'se of wiugs, 21 to 34 min.= 1.10 to l.-'ia inches. Hahitat.— N:wa Scotia to Texas; east of the Itocky INIountaiiis. June to October. This is our most abundant species, and ia some respects a most vari able one. When the sexes are sei)arated, however, the range of varia tiou in each is much reduced, and is usually a ditt'erence in the amount of contrast, rather than in actual maculation. The si)ecies is easily recognized by the (diaracters already given. The subterminal line in its course and tlie elevated scales marking it are chai'acteristic. ' (-. Genus HYPENA, Schnink. 180-'. Sihrank, I'iiiiiiii IJoica, II, '2, Ui'.l IH.")!. GiR'iiet', Species General, Deltoidi'S. '2't. 18.")7. Ledcryr, Noctiiiiien lMiii»|tu.s, 'Jll. IS.-)!). Walk.T, Cat. Mrit. Mils., Lei>. llcter.icera. XVI, 2'-'. llealitl,\ liiij;' tc llllUMll uients. usual 1(1 Hill •tHl 111 )rti<>n below MJ tii»' sexes, save tliat Mie male- has the priiiuiiies (listinctly bi()alace //. hniuali, an old friend, which dill'ers from all the others by the even outer margin <»f the primaries, no trace oi any angu- lation occurring in any specimen, 'i'he s])ecies is fui'tlier distinguished by having a sinuate transverse i>osterior line, distinctly outcurved over the reniform. in this it agrees with I'hdhijpciui scahra, but diliers from all its congeners. The transverse posterior line, by the bye, furnishes an excee«lingly useful and reliable character for the recognition of species in this genus, being absolutely coustant, ahvays distinct in the female, and usually also in the niale. H. motlesta is a new species, which has been probably confused with If. californlca. It is of a '>. I'itch, Trans. N. Y. State Agl. Soc. XV, .">;"), pi. i, iig. 1, Hiipetia. 18.')G. Fitch 1st and 2nd l{ei)t. Insects N. V., S2:?, ]>\. i, (ig. 1, llupvtia. 18(>2. Hiirris, Injurious Insects, Flint ed., 477, tig. 2:?7, Ifi/ixina. 1872. (iroto, Trans. Am. Kntonirdogical Soc, IV, 101, Hi/iieiia. 1878. Lintner, I'ntomological (,'ontribucions, IV, 128, Iliipena. tntiiiddlis, iioldnson. 1870. Robinson, Ann. Lye. Nat. Hist., N. Y., )\, 'M\, Ifn/KiKi. 1872. (irote. Trans. Am. Entomological Soc., IV, l(tl, Uijixinu. 1872. (irote, ('anadian I'-ntonudogist, IV, HI, Ujipetia. 187;*. Grote, Tr:ins. .\m. Entomological Soc, IV, 80!», pi. i, iig. 87, Hfnienn. 1878. Lintner, Entoinoh.giral Cimtrilmtions, IV, 128, \n\ syu. timtuinalis, \\',\\kvY. 18.")!». Walker, Cat. Brit. Mus., Heterocjera, XVI, 3.5, Ifypeiia. 1871. (Jrote, Bull, MutV. Soc. Nat. Sci., 11, 52, pr. syn. var. olirnreii, (Jrote. 187:?. (irote, Canadian Entomologist, V, 22r), Htjitena. 1882. (irote, New List, 44, pr, var. var. tillii>iniiicl(itit, Tepjier. 1881. Teppir, Hull, Itkln, Entomological Soc, IV, 2, pi. r. Iig. .">, Ilmuna. 18'Ji. Smith, List Lepidoi»tera, (II, \n\ var. M. ic ( 'oast or voruta lias inblinj? H. f tlie outer //. modes t((. itter, while H. modesta nor line in ! and bent, id tooth on nly a little d, but the d, but with irspace has I. Finally, ird angula- HUMII.I. vviirtl ))einl in . . .UKCOKATA, tviird bend or larger, CALIFOKNIOA. Bniiiller, MOUKSTA. iipena. K'lta. 7, nfji>enii A REVISION OF THE DELTOID ilOTHS — SMITH. 115 Hillicna. (Jround color, a grayisli b.owii, varyi •{,' in tint; in tlie male with blaekish powderin^js, in the female more or less suffused with reddish. Body of thej^round color; abdomen more <>ray. Primaries in tiie male even, without contrast, the lines vaguely traceable in most instances. In the female the uijper portion of the median space is darker brown, contrasting with the paler shade elsewhere in the wing. This brown shade usually extends less markedly to the upper part of the basal space, while its outer inferior angle is very near to the termination of a blackish sid>apical obliipu' streak. In some si)ecimens of both sexes the wings are transversely strigate, the striga*, brown, rivuh)us, not continuous, in tlui females marked only tliroiigh the darker jxtrtions of the wing. Transverse anterior line pale, more or less l)rown or dark margined, strongly toothed oui.ardlyon the median and submedian veins; rarely distinct, more often entirely obsolete, es[»ecially in the male. Transverse posterior line i>ale or whitish, arising above the reui- form and abruidly outcurved over this spot, as a whole nearly upright below it, but with an outward angle in tin; submedian intersi)ace ami an inward tooth on the internal vein. This line is usually more evi- dent in the male. Subterminal line [)unctiform, consisting of black dots followed by white scales, the line very evenly parallel with the outer margin. The line is best marked in bright females ; it temls to lose the wliite scales in i)ale specimens, the black dots alone remaining, and tends to lose the black spots in dark specimens in which the white scales (iidy are obvious. In a few sond)er gray males even this line is lost. A series of dark or bla(;k terminal lunules [ueceded by white scales. Orbicular a little round tuft of upright black scales. Reniform nuirked by two such spots. Beneath the median vein, about the center of the median si>aee, is another small, rouud tuft of elevated scales. Second- aries an even gray to fuscous, with a brown or darker t;n'minal line. IJeneath, more or less pow«lery, smoky to reddish, the primaries darker on the disk and usually immacidate, the secondaries i)aler, usually with a discal dot and a rather well-marked median dusky band. Expanse of wings, 27.5 to Ji3 mm. 1.10 to 1.3li inches. ILviUTA-T.— Northern United States, from the Atlantic to the Paeitic; (Janada; British Columbia; southward to Alabama. Colorado in Sep- tendjcr, October; British Columbia May, -luly, September, October; Kansas in April; Dehiware in August; New York -July, September, Oct(>ber. This is at once the most common and widely distributed s])ecies of the genus. Its larva' feeds on the liop-vine leaf, and prol»ably wher- ever that i)lant occurs, there our si)ecies will also be found. There is ji considerable amount of variation in the ground color, that of the males ranging from an even, sordid reddish bnnvu to almost black. The palest of the forms is H.nliracea, (Irote, the darkest is ILaJhopunetataj Pepper, the intermediate and typical form is //. fifrmtuwlis, Walker, rho feuuileof //. oUmeea is 11. eniuidalis, (hote. The coh)ration seems rl •-, 1 ; ■L, >j» ■■:';vv 116 JiUl.LKTIN IS, UNITED STATES; NATIONAL MUSEUM. i 1 todepeud sonicwliiit upon locality, the palest specimeiis' coining from noitlieiu New York, while the darkest forms are contitiedto thel acilic Coast. The structural features of th(! speeneath, powdery yellowish, the apices brown, botli wings with a 1)rown extra-median line; ]>rimaries with an incomplete subterminal line, which is white dotted near the costa; secondaries with a disc^al spot. I'iXpanse of wings, IM to 3t mm. = l.L'5 to l..)."> inches. Hauitat. — California; Vancou\(U'. This species was collected by JNIr. ily. Edwards, and I have seen no specimens other than those from which 1 originally described. Only the female is before me at present, but the male ditt'ers only in tin more even coloi- of the i)rimaries, the contrasts being less markcr, followed by a line of the biown shacb', very strongly bent outwardly, with long ation is of a most unsatisfactory character and would not have sulficed to dis- tinguish the present species from //, modcstn without th<' mateiial in the lly, F.dwards collecticm, which contained compared specimens. Besides the characters already enumerated this species is distin- guished from both the i)recediug by the continuous subterminal line, and by the subapical bliick streak which does not cross this line. In both these characters it agrees with //. modrsta, thai; which it is larger and with a dill'erent ground cohn-. The distinctive features will be more fully given with th(> new s])ecies. Hypena modesta, now siirrios. Ground color luteous gray with bluish gray powderings, giving the insect as a whole a pearly gray ai»pearance. Head and thorax concol- orouswith the palest color of the primari»'s. Abdonu'U i)aler, of the p.', , If- ■:/■ ft ■'.vi'- te : '1 118 BULLETIN 48, UNITED STATES NATIONAL MUSEUM. color of the serondariea. Priinarics in tlie male almoat evenly pearl to fawn ;;Tay, the maeulation never «listinct, often scarcely traceable: in the female the base is a pale yrayish luteous more or less marked with brown, and black ])owdered lo the transverse posterior line, beyon' shade. The usual transverse strij>'a' are marked on the costal si)a('e only. Transverse anterior line sli«>htly palei", broad, diffuse, often barely traceable, outwar«lly bent, and with two stron<«ly marked teeth, as in //. califormm. TransviTse posterior line usually marked oidy by the dilference in shade between the median and sub- terminal spaces; sometimes, however, emphasized by a sli<;ht reddish sulfiision. It is nearly riyidly oblicpie to the subniedian iutei'space, where it forms an inward tooth on the internal vein. Subterminal line nsually (Mmtinuous, pale, sometimes preceded by black dots, often obsolet«' or marked oidy with black dots in the male. A more or less obvious broken (erinimil line, preceded by paler scales in the inter- spaces. Ordinary spots marked by elevated scales, which are gray outwardly and black centered. A little tuft of elevated scales in the median SY)ace below the cell, and another on the median vein close to base — this latter being more or less evident in all the species. Second aries a dirty pale yellowish gray, with a more or less marked brown nnirginal line. Jiencath, a dirty gray, powdery, with a rather broad extra median line on all wings, an incomplete subterminal line on piinuiries, and a discal lunule on secondaries. Expanse of wings, 24 to 2t> mm. =0.00 to 1.10 inches. HAniTAT. — Los Angeles, Cal., Ajnil, -Tuly, October. Nine specimens are before me, all of them from the United States National Museum collection, nuirked "Through C. V. IJiley;" somecol- lected by jAlr. Coquillett, others by Mr. K<)el)elc. Of the hitter, two bear a red number 194, indicating biological notes in the possession of Dr. Kiley. This species has been confused with II. cali/ornica, with which it agrees in most characters. It is, however, decidedly smaller in the average expanse, and the wings have a modest gray shade, in decided contrast to the distinct bright yellow of its ally, while the orimmenta tion is never so cont casting. The character of the transverse posterior line is further distinctive, and so are the proportionately longer palpi and more evidently produced angulation of the outer margin. It is a somewhat interesting fact that on the Pacific Ooast thereshould bo four species of Jlypoia, only (me of which extends to the Atlantic Coast, while on the other hand the species of Ilomolocha are numerous in the East, while none are peculiar to the Pacitic Coast. ^f. only jioarl traceable; ^8 marked erior line, I or smoky Tliea])ex int of tlic imI on tlio L'r, l)roa«l. :) strongly le usually iiiul SU])- t reddish iferspace, ininal line r>ts, often fe or less fclie inter- are gray «vs in the close to Second ?d brown ler broad I line on d States somecol- tter, two ession of which it r in (he deiadcd amenta )osterior er palpi e should \tlantic microns LIST OF THF. (;HNF.RA AND SPI-CIHS (W DVUi)]]) MOTHS 2^^. L'l. 2r,. [Tl,o na,n..s ..C Rpooios .voffni/o,! i„ thiH w„rk uic in poman. Synonyms an. i,, italirR. Tribe iIELIIM. GonuH Ei'iZRixis, HiiltiHT. 1. E. liibrirjilis, Goyer. phdalin, Oiienr'e. niin-ectalh, WiilUcr. viir. ocrideiitalis, Smith. 2. E. (leiitifiilaliH, Harvey. 3. ]•;. rotiiudalis, Wiillv«!r. boreaha, Smith. forhesii, Froiidi. ■1. E. scobi.di.s. (!rot<\ T). E. lanroiitii, Smith. (J. E. iimericaliH, (Juom'^o. Hcrijiiipeniiin, Wallvor. 7. E. niajoralis, Smith. 8. E. a'mnhii, Iliibiier. moUi/vru, Walker. her min widen, \\"alliij)ill(tri.i, Grot(!. hnrlii, French. 'ieniis I'liii.oMKTitA. (irote. 20. p. metonalis, Walker. //^(r>.v<(/;,s, Walker. lonniUili'is, (irote. 27. P. cnmehLsalis, Walker. srrrdliroDiin, (Jrote. Genns Ciivto! ita, Grote. 28. ('. mi>rl»i(ialis, (jnenee. 2!l. ('. ]>etreali.s, (irote. Genns I?i,ki'Tina, (inem^e. 30. H. earadriualis, (Ineiu'^e rloiii<(H(ilis, Walker. 31. I!, medi.'ilis, Smith. 32. I!. iiiCerior, (irote. (iennH Tkpanoi.ita, Grote. 33. '['. mynesalis. Walker. lixdl'is, (irote. 34. T. lloridana, Smitli. 3"). T. pailif^era. Smith. Genus I\*i;ma, (inenee. 3fi. K.salnsalis, Walker. hn:riroKlrnlix, (irote. 37. R. diseoloralis, (ineut^e. faUiirinlis, Walker. (IcnernJis, Walker. IhraxaliH, Walker. 35. \l. (Vaternalis, Smith. 3!l. Iv'.sol.rialis, Walker. restric.taVta, Grote. 40. R. l.arvalis, Grote. 119 w. I '1 120 lUJU.ETiN 48, UNITED 8TATER NATIONAL MUSEUM. n. IJ.clitosiilis. Walker. aiilralis, (irote. 42. IM'iictiosiilis. W;ilkcr. jileniliiualix, (Jroto. uhiliilin, (Jroto. 4;?. Iv. (Iii\ ipniK'taliH. CJeyor. j}h(ih'r<>md\x, Walker. heliimnlis, Walker. ptintcrdlin, CJrote. hclj'r'. piilverosiili.s, Smith. (Jeiiiis IIyi'KN'ii-a, (Irote. 45. 11. cacMiiiiiiualis, Walker. bifernlin, Walker. opacdHs, (irote. (ienUS HKTKRO(iRAMMA, (Jiicu^e. 4(5. H. pyrannisalis, Walker. (IlliimUx, Walker. rnviijeuii, (irote. (ieiins (lAUKitASA, Walker. 47. Ci. amliijjjnalis, Walker. ^ hij'Khtlia, (iroto. 9 iiicUvisalin, Grote. GcnuH Dkiscktis, Grote. I >. ', itrea, Grote. L>. i)y)j;ma'a, (irote;. (ienus Pai.tiiis, ITiiltner. 1'. aufjulalis, lliiliner. ariK'iiilhiimJin, AValker. ]'. aHOi)ialis, (iueiiee. Tribe HYI'KNINI. (JenuH Cai'I.s, (irote. 52. C. ciirvata, Grote. Genus Sai.ia, Hiibner. 53. S. inter])uii(ta, (irote?. saHfiita, ZcUer. riifii, Grote. 54. S. salicalis, Fabrieins. Genus Homoi.ociia, Hiibner. 55. 15. iiiaiialis, W^alker. 48. 4«t. 50. 51. 56. 15. baltiinoraliH, Giienr^o. /*c>n;/H«/tN, Walker. laciuiosa, Zeller. 57. H. bijujjalis, Walker. pnU\al\H, Zeller. fccialiH, Grote. 58. H.sentellaris, (irote. 59. IJ. abalinealiH, Walker. fiO. B. (lecieptallH, Walker. })emni, Harvey. 61. H. nmdeCaetalis, Guent^e. achalinalin, Zeller. damiwualis, W^alker. indiicalin, Walker. 2>rofeela, Grote. (52. 15. sordidtila, Grote. (53. 15. nmbralis, Smith. (54. B. torenta, Groi^^o. ititvnialia \\ Uobinnon. (ilhix'igrKtJis, Zeller. 65. B. ertictalia, Walker. 9 wlUfera, (irote. ^ Icnfiginosa, Grote. 66. B. citata, Grote. IritiiheraJh, Zeller. 67. 15. anniilalis, Grote. (JeniKs I.OMANAI.TES, Grote. 68. L. odiietalis. Walker. liitiihis, Grote. (ienus Plathyi'KNa, (irote. 69. P. scabr.a, Fabric! us. creclaliSy (iuen<^e. palpalin, Haworth. crassaiiis, HaAvortli. obesalh, Stephens. siihrufalis, Grote. Genus Hypena, Schrauk. 70. H. liumiili, Harris. evanidaliH, Kobinson. (IcrnutnaVis, Walker. Yar. olivarea, (irote. Yar. albopnnctata, Tepp6r. 71. H. decorata, Smith. 72. H. ealiforniea, Behr. 73. H. niodesta, Smith. Mi-r ILXPLANATIOX OF PLATES i'l.A'l'K I. 1 r V 1 , ■ ,. ^I'ECIE.S OK Till.: (iKNCS KI'IZEUXIS. 1-5. h. InbriCiilis. (i. E. «lcnticiil.aliM. 7-f). E, lotuiidjilis. 10. E. lorbcHii: fro.,, fl... ty,,.- i,. Vrot...,n Forbes' collection. 11. I'i. HCOblilll.S. 12. E. laiu-ciitii : fro,,, tbo male typo. I'*- ^'^- " IVo,,, tl,.' ieiiiale typo. 11-lG. E. n„,orici,li8. 17, 18. E. inajorjilis: fro,,, two of tl,(( (v,)ps 19-21. E. M'tuulu. ■ J'l-ATH II. SI'KCIKS ()!.• Tllic (iKNUS ZANCLOUNATIIA. 1-3. Zanclognatha litnralis. 4,5. /. thenilis. 6. Z. n.inoralis : fro,,, tho typo 1., the.-ollectio,. of tho Michigan AKricultu,-.! College 9. Z. li.'.vijr.ata: Iron, tbo feinaln type. 10. Z. " : iy,„u tl,o ,„alo type: boti, in tho .ollo.tio,, of the A,„e,-ioan E„to- n)o,og,cal Sociioty. 11-15. Z. bi'vigata: iHnstratiug variation. 1(>. This (ignro is niissing. 17. Z. lajvigata: showing f,„„ ],.„„ will, partly expanded tnftingB 18. /.atril„u,olla^fro,„ the type in the .-olleetion of the American Entomological I'LATE III. SI'KCIKS OV Till-. (JKNIS ZAXCI.OGNATHA. 1. /.luclognatha. punctiforn.is: fn.n, the tyn.> in the collection of the Tlnited States National Miisenin : soinewliat enbirged. 2. Z. pedii)ilali.s: so,newliat enlarged. •^- ^- " : niitiiial size. '!-(!. Z. cruralis. 7. Z. obscuripennis: fro,n the type in the collection of the American Entomob.gical Society: somtwliat enlarged. 8-12. Z. i)roti,miiosalis. 13. Z. protninnosalls: somewhat enlarged. It. Z. niai-cidilinea: soniowhat onlaiged. ^''' ^- " = ^'""'» ^'''' typo '» tl'e collection of the An,erican Entomological Society: Noinewhat enlarge4l. 16. Z. marcidilinea: from typical speciniens in the cUlectiouof the American Ento- mological Society; slightly enlarged, 121 122 HULLETIN IS, UNITED HTATKS NATIONAL Ml.SHlIM. 17, IH. Z. oiliroip«nniH: from two of tlni typcH in tlio colUM'tion of tlio Aiiioriciiii V.wUt inolo^tiriil Society. V.y-til. 'A. oclireipounis: all Hoincwiuit t-iilarKod. I'LATK IV. 8rK< OK iriK (IKM-.lfA liOKMISA, I'llILl iMK I'UA, CM Y ToUT.V, AND TKTANOMTA, 1,L'. lloniiiHii iilmorptallH ;S. II. litopliora. 4. II. liivittiitii. .'>. II. orcildialis. « (1. II. " : from the typoof /'(j/Zar/iim H«r/»Mu tliocolleotion of S. A. ForboN. 7. H. I'iiilomi^tra mclonalis. }), 10. 1'. cumclu.saliH. 11,12. Chytolita iiiorhitlaliM. 13-15. C. potioali.s. lfi-18. TetaiHtlitii mynosallH. lit-1'1. T. lloridana: Iroiii (he types in tlie collection of liie Unitcil ytafcos National iMnNonm. 22-24. T. i)allij,'('iii. All tli« lij^iircs aiv slijjlitly c nlari,fO(l. PLATE V. 8PRCIK8 OF THR OK.NKUA HLKI'TINA, IlKTKUOfiRAMMA, CiABKRASA, l>KIJ< K.TI.S. AND PAI.riMS. l-.">. Bh'ptina caradrinalis: all somewliat enlarged. (i-7. 1$. modialis: from tlic typoH. 8. H. Inferior. 9. H. " : from tlio tyjx' in the, collection of tho American Eutomolopfiral Society: a little enlarfred. 10,11. lIeterou;ranuna pyramnsalin. 12. (iaberasa aml)i.sfm/(.s in the collection of the Aniericiin Entomological Society : somewhat enlarged. 4,8. R. diacolor.alis: showing variations. 9,10. R. fr.aternalis : from types in the collection of the United States National Mnsenm. 11. R. faetiosalis. 12-14. R. " from types of /,'. ptcniUncalin in the collection of the American Entomological Society. 15-17. R. faetiosalis. m-^ •I'icaii Kiild Lmcricaii uiencaii A REVISION OF THK DELTOID MOTHS— SMITH. 123 n.ATE VH. SI'I'.t IKS ()!.• TiiK (iioNt's RRNIA. :;7''t;,xt,-;,: «;—;:,:;, — "- " J- 1. U. HolirijiliH, ' "• "■ ""■«::;::;■: r,,;-;:,.;:,,' -- ■ a,„„h,.„„ k,.™,.,,,.., 7. K. Inrvulis. 8. K'. clitoHiiliM. "■ "• "'"'ZrX.SZ ^:X •" '■■■ '"'*"-' '" ' - ' '^« An. 10-11. U. Ilavii»iiii(tjili.s. in. Hi. K. llavii.nncti.IiN: coi.si.leral.Iv onlarKod "■ '"■ "■ "";::::;? l:i;::; ;^cv"" """""""" ■" '■"- "-'« ^'"'" ^•"-"' 1!'. I>'. larvaliH. " . PLATE VIIL .nK.„K, OK T„n c.K».„A „v,..x.n,., „,„„, ,,,,,, ,„„,,,„,,, ^^„ ^ 1,2. ll.vpcniiLa caomniiialiN. 3. C'apis curvata. 4. Saiiasallcalis. 5-7. LomanaltcN odiu-talis. 8. Boiiioloclia nianalis: foinalo. 9. << " : iiialo. 10. (( ItaJtimoraliH: malo. 11. ii ■' : f'oinalo. 12. ti .scutcllaris: Iciiialc. 13. It l)i.jiiKalis: leinalo. 14. u : male. 15. a scntellariH: nialo. 16. << abalinealis: female. 17. << : main. 18. <( deceptalis: iiialii. 19. (< " : fomal.!. 20. (( miihralis. 21. '< torcnta. PLATE IX Sl'KCIKS or TlIK (iENKIJA nOMOLOCII.V, I'LATHYPKNA, AND IIYPENA. 1.2. Bomoloclia macielactalis: female •^- " " : male. '*• " .sordidula: male. ^'^'- " " ■ female. 7- " edictalis: male. ^- " " : female. !>• " citata. 10. Platliy])ena.scal)ra: male. 1^12- " " : female. 13. Hypena liumiili, var albopmictata. 14- " " : male. 15. " «< : female. 16. " decorata: male. 17. " <'alifornica: male. " 18. " " : female. 19-21. " modesfca: from types in the eollectiou of the United States National Mnseum. w V>\ nm.UiTIN 4H, UNITED STATKS NATIONAL MUSEUM. PLATE X. sTHi'cTi'it.vr. ( iiAiiAt irits oi iii:i,iini anii iikiimimim. 1. Epi/.tMixiK Inldic'iiliH: iintoiiim i»l' iiiiilc tioiii Hidf lu'fir Ihihc uikI near tip. 3. S. 4. 6. e. 7. 8. 0. 10. 11. Vi. 13. 14. 15. 16. 1/. 18. 19. (I n '• : iiiitciiiia <»t' I'cnuilo. lore W)i t'l limit' in till HjiccicH, vdiiiitioii. riiis iH tlit^ iiHiiiil ty|ii> ill all ili>riiiiiiiiiii. (lonticnliiliH: antenna urniali' iVoni b.low. lunr llaH(^ " ; Haiiic fViiiii side iiriir I i|i. « " : ii Min^iir joint, ;;icuti\ t toward iniddhs Ironi IkOow. " : antt-nna of I'cnnilc toward tip; E. miiiila, tcnial«s is vit.v Niinilar. ro1iiinl;iiis: antcniiM ot'iicilc toward li:iHf. '• : sann^ towanl tiii. " : iiiitiMiini of li'iiiiiio: Unit cd' oint. " : antcnini of foinaic tlMiralis: lore i(;<>dt imiltv '" : sp(U'iaii/ed joints of limits aiiteun.'i. '• : male antenna in';ir tip. '• : antenna id' female. niinoralis: fore le;; oi male. '• : s])e('iiili/( d Joints of male antenna: towanl tij) it is nineii as in llirrdliH. ri>A'l'K XI. STIUCTIIiAI. < llAIiAC TKHS OI" ItrnMINIIM. I. Zan(do<;nat!i;i ],e\ ij-iita : fore iejj of male. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 16. 16. 11 : specialized Jo lit.' of male ant(!nna : exceptional form. " : same: nsnal foiiii. ))iinetiformis: fore le.<>' of male. : s]ieeiali/('d Joints of male antenna, jiedijiilalis: lore legof m.ile: ohHcut'q>enntn,orhrnitemi\s, minUnaVis, and iiKircidHhied are esHentially tlie same. : HptMJali/ed Joints of male antenna. : male, antenna near tip. crnralis: tore le"';^- '•"'..-. (ij,,,,-.,.. ,.., drawn to tlu,.auH,sr«l„ •'""• ""• ».'.viu„s n. «,,„ i.awoon .ho t,„o s,M.,i..H aro puipoitioimlly (oimct. Miiiiilar. J" 'I ^" = '*1"'''"1">^<'«1 ,i<'inl.s(,r nialrant.'niia. " • 'iHiiij;!" joint , ear ha.st-. ,^' " '''"l''"".i: Hpcrializo.l Joint (if ii.ah. aiii.-iMia. •'. ('hy...lita niorl.idalis: ,ore !..« of n.alo. Ti.at of ,Wm,/. . .n.ilar, hnt only iiall tint size. ??• " " ■ '*I'«'<'iiin/.Hl joints of niul.) antenna. 18. " potiouIlM: " X .1 i. u 14. nieptinucarailiinaliH: antonna of male. 15. " niodialin: " " " 16. " inferior: " •< •< PLATM XI 11. STHtK'TCUAI. CIIAISAITKUS oK IIKltMI.N'tl.M. 1. Jileptinu caradrinaliH: fore I., of n.al.. ,/.//„//. ...d /»/«ware pra.ti.-ally the sanif. ^- " '' : venation of liotli wings. 'S. Tetanolita lloridana: foro lej. of male. I'nilii/crn i.s o.sentially like tlii.s. = iiutenna ..f mah' toward tip: toward base it in mncli as in ^' " iii.vneHal i.s: fore leg of male. ^- " " : spt'cialized portion of inalo antenna. ' '' " = ^'•""'t'"" "'■ primary at, end olsul»(;o8tal. ^' " piilligera : .specialized part of male antenna. 9. llypennla eaennnnaliH: fore leg of m.ile. ^^- " " . antenna of male toward tip. 11. Hoterogramma i>yramnsalis: fore leg of male. " antenna of male. l.'l Characteristic antenna of Konia. 14. Venation of 2)riinarie8 in Henia. 15. Renia salnsalis: foreleg of male. 10. " llavipunctalis: foreleg of n.ale: all the species are like one or the other of the forms here figured. 17. " salusalis : specialized joints of male antenna. The hair tnft omitted in all thcfjo figures. DiicolnraliH is very similar. 18. " sobrialis: specialized joints of male antenna. 11'. " larvalis: " " " <« << 20. " ditosalis: " •• >< " .< 21. " flavipunctalis: " " " " << S"p'ln^"^T"-'"'' " " " " '' ^«^'''«««''«iB practically hkethi^ ^6. Palpus of Renia. 126 BULLETIN 18, UNITED STATES NATIONAL MUSEUM. I'LATE XIV. tf rt^ STRUCTURAL CIIAKACTKU!-! <)l<" HKKMlNIINI AND HYI'KNINI. 1. Gaberiisa luiibiguiilis: venation of]tiiinary of male. 2. •' " : palpus of male. 3. " " : fove leg of male. 4.Dercoti8: venation of both wings. 5. " : male ualpu.s. (). " vitrea: lore leg of male. 7. " " : antenna of mule. 8. '' pygiuica: forci leg of male. U. " " : antenna of nnile. 10. Vdiatioii of primaries in I'althis. 11, PaltUis isopiiilis: fore leg of nuile. 1-. •' •' : palpus of malt;. i'i- " '' : antenna of male. (rrt6e/'a«a is also like this. 11. " " : palpus of female. Ii5. " •' : specializ* 'I guarded pits of male pa';ii, from which the hair tufts issue. The structure in feP '*!'- 12 16 SPECIES OF HORMISA, PHILOMETRA, CHYTOLITA, AND TETANOLITA. I For HxiiliiuaiiDii nf |)late see paK*' 1--. i FT^. U S. NATIONAL MUSEUM BULLETIN 48, PL. V SPECIES OF BLEPTINA, HETET-tOGRAMMA, GABERASA. DERCETIS, AND PALTHIS. (For expliiimtiiiii of plate see \miitf r,'-'. i m U. S. NATIONAL MUSEUM BULLETIN 48, PL. VI ^ ,/ SPECIES OF THE GENUS REMA. (For t'X|ilaiiaiiiiii '>i' \>h\xr Sf'c paK*' i'~~ hi I U. 9. NATIONAL MUSEUM BULLETIN 48, PL. VII SPECIES OF THE GENUS RENIA. (For <'.\|iliiii;ilii)ii of |ilaii- sim- pap-' I'-^'K U. S. NATIONAL MUSEUM BULLETIN 48, PL. VIII SPECIES OF HYPENULA, CAPIS. SALIA, LOMANALTES, AND BOMOLOCHA. m) 11 U. S. NATIONAL MUSEUM SPECIES OF BOMOLOCHA, PLATHYPENA. AND HYPENA. i For t'xpiaiiatiiiii uf |iliitf sc.' \mnf I'-i'-i.) ll ■ I II U. S. NATIONAL MUSEUM BULLETIN 48, PL. X '^^f^'^^^^S^ STRUCTURAL CHARACTERS OF HELIINI AND HERMINIINI. iFor fxplaiiatidii of plate see imjrc VH.) I U. S. NATIONAL MUSEUM BULLETIN 48, PL. XI STRUCTURAL CHARACTERS OF HERMINIINI. iFor explunatioii of i>late see piijje l-,'4.) i ' i ,' ' 5 1 U. S. NATIONAL MUSEUM BULLETIN 48, PL. XII STRUCTURAL CHARACTERS OF HERMINIINI. (For explauiition of plate see pa^e 1S5.! ;' ;j ii' ll U. S. NATIONAL MUSEUM BULLETIN 48, PL. XIII STRUCTURAL CHARACTERS OF HERMINIINI. (For exi)lanation of jilatc see juifje la.").) U. S. NATIONAL MUSEUM STRUCTURAL CHARACTERS OF HERMINIINI AND HYPENINI. (For oxplanntioti of iilutc see jmge 1C6.) itll w li I IN I) i:x [Tribal .ind Family iianu'H an; iu capitals. Generic iiaiiu-H bcgiu witli cajiitals, and specilic iiaiucs witli lower-case, letters. Synoiiyiiis are iiriiited in itnlicn.] ahiilineali.s iCi, 1)5, 100 i absorptalis 46 aclinliihilis !«. lOL' aaknowleilgiiicnts l,'{ . a-niulii ,. 17,2(5 ' (ilhis'KjnuliH 10;") ' alboinuictala Ill alutal'iH 07, 7;{ I aml)i<;uali8 SI aiiiericalis 17, L'lJ auf-ulalis 85, ^(i ■nimilalis 94,108 i anteiuial i>cculiaritie.s 5 aravinthuHuliH Sfi asopialis So, «G, 87 atriliii(!<;lla 30. 31, 38 baltiiiioralis , !»3, <)"., '•(> bvlfnt*trnctnrc. . 1 dcnticulali.s 16, 17, 19 Dercotis 10,11,82 discoloralis 66, 68, 69 dnlt-apparatc 8 edictalis 94, 95, 106 cductalis 109 cffitxalix 26 Kpi/eiixis 4, 14, 15 Krastr ia 94 crerlalix Ill Kiihiijicmi 91 h'utinlnni't 80 ennu'liisalis ,50,51,53 iridiiilalix 1 14 lactidSJilis 67,68,73 fdlliici'ilix 69 launal raii;;c of j;roni) 12 ftcidlix 97 llavipnnctalis 67, '"8, 7 • tloridana 62,63 JoHnsii 20, 21 fraternal is 67, 68, 70 functions of antcnn.'il structures. 6 IcH .•.Iriiitiircs 8 (;abcrasii 10, 14, 80 heliusalis "I Hevmiina 54. 55 Hkuminiini 4,13.110 herminio'uh'H -0 Hfteroffiauinia 10, 14, 78 Honnisa 0, 14,45 hninnli 113,114 llvpeua 12,14,112 Hyi'EXINI 11,114,120 Hypeiiiila 10, 14, 7G idinisalis 108 Idindolosa 26 inconspiciialis 29, 31. 35 iii'Misalis 94 hidirimlis 81 int'eiioi' 58, 61 intcrtialis 105 intcrpiimta 89, 90 jacvhuxaliH 40 laciniosa 96 latuUifi 109 lii'vi, 17 M(icrh\i}K'U(i 91 luadcfactalis 93, 95, 102 Mtidopa 89 iiiajoi .ills ... 16, 17, 25 inaiialis 92, 94, 95 marcidiliiiwi 31,32,43 iVardarii 84 nmikiiifrs ami colors 3 mcdialis 58. 60 Mcfiadnita 27, 28 Mefihijpena 91 nietoualis .50,51 Microphiixa 23, 26 miiiimaliy 31, 42 luinoialis 29, 31, 34 Paffo. inito