HI , ba beak oh Nhe p iy ee [¢-, fentgr— INSECTS AT HOME: BEING Can A POPULAR ACCOUNT OF ALL THOSE INSECTS WHICH ARE USEFUL OR DESTRUCTIVE, ’ - MINUTELY DESCRIBING THEIR STRUCTURE, HABITS, AND TRANSFORMATIONS. {pit |pwards of Seven fjumdved figures, BY E. A. SMITIT AND J. B. ZWECKER; ENGRAVED BY G. PEARSON. BY THE REV. J. G. WOOD, M.A., F.LS., Ere. ~ Author of ‘‘ Homes Without Hands,” ‘‘ Bible Animals,’’ ‘*‘ Common Objects of the Sea-shore and Country,” ‘‘ The Illustrated Natural History,” “Strange Dwe'lings,”’ etc. NEW YORK: JOHN B. ALDEN, PustisHer, 1584, PRHFACH. ———_e s+ _—_. As this is not a work on comparative anatomy, but treats of “Insects at Home,’ a greater stress is laid on the habits of the insects than on their anatomy. Still, inasmuch as a general knowledge of the various parts of an insect and of the terms applied to them is absolutely necessary for all who wish to study the subject, however superficially, I have given, together with the different groups of insects, those portions of their structure which serve to distinguish them from their fellows. Moreover, there will be found: prefixed to the description cf the chief groups chart-drawings of their anatomy, so as ‘to enable the reader to recognise the various portions of an insect when he examines it. I am led to do this by the remem- brance of the difficulties undergone by myself during my earlier years of entomology. In those days the only works which gave illustrations as well as names were so few, and so costly, that they were positively out of my reach as much as if they had never existed. I have therefore endeavoured in this work to supply that want which I felt so severely, and have so arranged the work that no reader need be puzzled as to the difference between mandible, maxilla, labium, and mentum, as I was in former days. For example, the chart-drawing on page 9 describes fully the structure of a Beetle, and is in fact a key to that of all insects; that on page 296 gives all those vi PREFACE. points in which the Bees, Wasps, Ants and their kin differ from the Beetles; and that on page 385 performs the same service with regard to the Moths and Butterflies. In the Woodecuts which are inserted in the text the num- bered figures represent insects, and those to which letters are attached represent the most important details of those insects. It is by means of such details that entomologists are enabled to arrange insects in some definite system, and so to enable anyone who is acquainted with them to identify an insect which he has never before seen. The reader may probably notice that these figures of insects are but slightly shaded, and in many cases are little but outline. This is intentional, and the shading is omitted in order that the reader may supply its place by colour. In every case where red, yellow, or light hues of any tint are to be used, their place is left as nearly blank as possible; and, as the insects are described fully in the text, there will be no difficulty in applying the colours. I would recommend a liberal use of ox-gall in mixing the colours, so as to neutralise the oily lines of the printer’s ink. Should the reader wish to colour the page-size engravings, he must first prepare them with a little size, or otherwise the colours will run. It will be found better, in order to bring out the insects more boldly, either to leave the background uncoloured, or to put in the colours as lightly as possible. I very strongly recommend the possessor of the work to colour these illustrations, as he will thus fix the insects firmly in his mind, and quadruple the value of the volume to other readers. October 1871. CON TEN Ce. I.—Ixrrenuction I].—GxopEPHAGA IIl.—GroperHaca—continucd 1V.—HypDRADEPHAGA . V.— BRACHELYTRA VI.—NeEcROPHAGA VIL.—LAMELLICORNES . VITL.—&terr xt LTX.—MatacopErmMI X.—HETEROMERA XI.—RuywcHorHorA, OR WERBVILS XIL.—LoNGICcORNES . 5 Nii —Horopk s P XIV.—PsEUDOTRIMERA . ; DRNCAPTDRA. os el uso. oe ORTHOPTERA. cw at THYSANOPTERA . 3 : NEUROPTERA. ° . . TRICHOPTERA 5 . . H YMENOPTERA— Ci. I—Saw-Friss . A “ IJ.—Tux Icuneumon Firms TiI.—Ants anp Diccers . IV.— Wasps anp Sorirary Bess V.—Sociat Bres ‘ ss ° ° ° ° e ° e e ° ° ° ° ° ° ° e ° ° ° ° e ° ° ’ e. 6 t e ° ° e ° e . e ° ° ° * e ? ° ° e ° e ° ° ° ° © « © ° « ° e ° J . © . i) e ° ° e e ° o e ° e ° ° ° e e Vill CONTENTS. PAGE LEPIDOPTERA— Cu. I.—Rxopatocers, oR BUTTERFLIES . : : ‘A 3 rz etatey. TJ.—Herrrocera, orn Morus. s : 5 ; ; : > 412 IIl.—Gromerna:. 7 ;: ; : : ne ee 3 é . 446 IV.—Psrvupo-Bompyces, Deepancia, 4nd NoctuE . 4 sh ater 4638 V.—Detroiwes, PyrarmEs, AND CRAMbITHS ; ° ‘ 2 48 VI.—Torrricrs, TINEH, AND PreRoPHoRi. ; z s A ~ 002 VII.— Tine AND PTEROPHORI . 5 A : ° ° e « (ON HOMOPTERA . . - . ° ° ° e ° e e 2 988 HETEROPTERA— Cu. I.—-Avrocorisa, or Atr-Bues. A ‘ e e e e . ODD I].—Hyprocortsa, or WatTER-Bues . e . - e ° . 581 APHANIPTERA—(Punicioz, om Famss), «© « © 2» « « O91 DIPTERA * ° ® e ® e e e @ e s ° e 599 PELUSTRATIONS: PLATES. PLATE I. PLANTS:— TIGER BEETLES AND BOM- Trunk and Branch of Oak (Quercus BARDIER To face p. 16 . Cicindela sylvatica and larva. . Cicindela maritima and larva. . Cicindela germanica and larva. . Broscus cephalotes. . Brachinus crepitans. 3, Carabus monilis. Oo BR Oo OH O> PLANTS :— Bramble (Rubus fruticosus). Above Heath (Erica cinerea). Right of middle. Lavender Thrift (Statice Limon- ium). Left or middle. Fern (Pteris aquilina). Above heath. PLATE II. GROUND BEETLES To face p. 32 1. Lebia crux-minor. 2. Calosoma inquisitor. 3, Carabus intricatus. 4, Cychrus rostratus. 5, Calosoma, larva in nest of Social caterpillar. 6, Carabus, larva. Robur). Above. Wood Anemone (Anemone nemor- osa). Across centre. Cowslip (Primula veris). In middle, PLATE III. WATER BEETLES . To face p.54 le Dyticus marginalis (male). . Dyticus marginalis (female). Gyrinus natator (and under). . Dyticus marginalis, larva. . Gyrinus natator, larva. . Gyrinus natator, pupa case (on arrow-head). wo o> ot HR PLANTS:— Arrow-head (Sagittaria sagittifo- lia). Left upper corner. ' Creeping Mouse-ear (Myosotis re- pens). Right upper corner. Bristle-stalk Ciub-rush (Scirpus se- taceus). Under Myosotis. Water Feather-foil (Hottonia patl- ustris). Under arrow-head. x LIST OF ILLUSTRATIONS. 5. Meloé cicatricosus, larva (full PLATE IV. | Sera be, oo ROVE BEETLES AND BURYING | 8. Phytonomus tigrinus. BEETLES To face p. 76 7. Lixus bicolor. 1. Boletobius atricapillus. 8. Lixus bicolor, nest. 2. Ocypus olens (egzs belew). 9. Aromia moschata. 3. Staphylinus ceesareus. aU: Clytus Ba ab 4. Necrophorus humator. 11. Cassida aa aaa 5. Necrophorus vespillo. 12. Coccinella septempunctata. 6. Necrophorus mortuorum. PLANTS :— 7. Choleva CaS ee Willow (Salix alba). Above. 8. Hister bimaculata. Wild Carrot (Daucus carota). Left 9. Nitidula depressa. of middle. 10. Boletobius in gills of mushroom. 11. Necrophorus humator, larva. PAE Wale 12. Silpka thoracica, larva. 13. Oeypus olens, larva. EARWIGS, FIELD-COCKROACH, 14. Silpha thoracica (on body of bird). AND CRICKETS To face p. 228 1. Forficula gigantea. PLANT -— 2. Forficula aurivularia. Edible Mushroom (Agaricus campes- 3. Blatta germanica. tris). 4. Blatta germanica (egg-case). 5. Gryllotalpa vulgaris. PLATE V 6. Gryllus campestris. CHAFERS To face p. 114 | PLANTS:— 1. Cetonia aurata. . Melolontha vulgaris (male). . Geotrupes stercorarius. . Lucanus cervus. . .Lucanus cervus, larva (very young). . Cetonia aurata, larva (three parts grown). 7..Cetonia aurata (pupa cases or cocoons). 8. Geotrupes (young). 9. Melolontha, vulgaris, larva (three parts grown). & Om ow bo stercorarius, larva i PLANT :— Wild Rose (Rosa canina). . PLATE VI. .GLOW-WORM, OIL-BEETLES, WEEVILS, LONG-HORNS, AND _LADY-BIRDS. To face p. 192 Lampyris noctiluea (male). Lampyris noctiluca (female). 3. Meloé cicatricosus (male). 4, Melo cicatricosus (female). 1. 2. Great Bindweed (Convolvulus see pium). Above. Purple Clover (Trifoliwm pratense). Right of middle. PLATE VIII. DRAG ON- FLIES, MAY - FLIES, AND CADDIS To face p. 266 1. Ephemera vulgata. -2. Ephemera, larva. 3. Libellula depressa. 3a.Libellula emerging from pupa- case, 4, Libellula, larva. 5. Calopteryx virgo. 6. Agrion minium. 7. Phryganea grandis. 8. Phryganea, larva cases, or caddis. PLaANnTs :-— Flowering Rush (Butomus umbella- tus). In centre. Mare’s Tail (Hippuris vulgaris). On right. Water Bistort (Polygonum amphi- biwm). On lett. LIST OF ILLUSTRATIONS. xi PLATE IX. SAW-FLIES, GALL-FLIES, AND SIREX . . To face p. 300 . Cimbex lutea. . Cimbex, cocoon. . Cimbex, larva. . Lyda hortensis. . Trichiosoma lucorum. Cynips Kollari. . Sirex Juvencus (male). nN me CO NM AD ~I PLAntTs :— Oak, Fir, and Hawthorn. PLATE X. PARASITIC HYMENOPTERA. 2 To face p. 324 1. Pezomachus zonatus and nests of spider. . Pezomachus fasciatus. . Trogus atropos. . Rhyssa persuasoria. . Rhyssa depositing eggs. . Chelonus oculator (rather magni- fied). Caterpillar of Death’s Head Moth. In middle. Done Ww ds PLANTS :— Willow. Above. , Dog-grass (Cynosurus). In middle, with mud-nests of Spider. Wood Sorrel ( Oxalis acetosella). low. Be- PLATE XI. ANTS, WASPS, AND SOLITARY BEES To face p. 350 1. Formica rufa and nest. 2. Quedius brevis. 3. Eumenes and nest. 4, Vespa arborea and nest. 5. Andrena nitida. 6. Andrena Trimmerana. 7. Cilissa, heemorrhoidalis. 8. Nomada ruficornis, 9, Stylops melitte. PLANTS :— Harebell. Common Heath (frica cinera), with nest of Eumenes. Ivy. PLATE ‘XII. HUMBLE BEES 1. Bombus lueorum (female). 2. Bombus muscorum (female). 3. Apathus vestalis (female.) 4. Encera longicornis (male), To face p. 270 Prants :— Hawthorn. Above. Sea Campion (Silene maritina). Be- low. PLATE XIII. BUTTERFLIES To face p. 39 1. Vanessa polychloros. 2. Vanessa Atalanta. 3. Vanessa cardui. PLaNnTs :-— Meadow Crane's Bill (Geranium pra- tense). Above, on right. Buttercup (Ranunculus bulbosus). In middle. : PLATE XIV. HAWK MOTHS 1. Acherontia atropos. 2. Acherontia larva. 3. Macroglossa stellatarum. 4. Macroglossa fuciformis. To face p. 422 PLant :— Potato. PLATE XV. NIGHT FLIERS .. 1. Chelonia caja. 2. Lasiocampa quercus. 3. Saturnia carpini. 4, Digranura vinula. To face p. 444 PLaNtTs:— Oak and Willow xu LIST OF ILLUSTRATIONS. PLATE XVI, GEOMETERS AND NOCTU. To face p. 452 . Agrotis segetum. . Agrotis larva. . Xanthia flavago. . Geometra papilionaria. . Abraxas grossulariata. . Abraxas grossulariata, larva. uUrrP WwW DN lor) LLANTS -— Currant and Strawberry. PLATE XVII. DELTOIDES, TORTRICES, TINEA, AND PTEROPHORL. To face p. 504 1. Hypena proboscidalis. 2. Hypena proboscidalis, larva. 8. Tortrix pomonana. 4. Tortrix pomonana, larva. 5. Pterophorus pentadactylus. 6. Pterophorus pterodactylus. 7. Nepticula aurella. 8 Bramble-leaves mined by Nepti- cula. PLANTS :— Apple and Bramble. PLATE XVIII. TERRESTRIAL HOMOPTERA AND HETEROPTERA . To face p. 588 1. Ledra aurita. 2. Ledra aurita, larva. *. Triepphora sanguinolynta. 4. Pentatoma dissimile. 5. Stenocephalis agilis. Prants :— Great Ragwort (Senecio Jacobea), Above. White Dead Nettle (Lamium album). Below. PLATE XIX. AQUATIC HETEROPTERA. To face p. 584 1. Ranatra linearis. 2. Notonecta glauca. 3. Nepa glauca. PLANTS :— Duckweed (Lemna). water. Various-leaved Pondweed (Potamoge- ton heterophyl/us). Starwort (Aster tripelium). On surface of PLATE XX. DIPTERA. To face p. 626 1. Tabanus bovinus. 2. Conops vesicularis. 3. Gasterophilus equi 4. Tachina grossa. PLant :— Honeysuckle. LIST OF ILLUSTRATIONS, WOODCUTS. {—Lucanus crervus. pissection. Parts of the Head.—1. Mandivles, or laws. 2. Antenne. 2a. Scape. 24. Club. 3. Labium, or lower lip. 3a Labial palpi, or lip-feelers. 4. Maxille, or lower jaws. 4a. Maxillary palpi, or jaw-feelers. 5. Head, upper surface. 5a. Eyes. 5b. Vertex, or crown. dc. Occiput, or back of head. 6d. Clypeus, or shield. 6. Head, under surface. 6a. Eyes. 60. Insertion of antenne. Parts of Thorax ang Abdomen.—7. Pronotum, or upper surface of thorax. 7a. Lateral margin. 70. Anterior margin. 7c. Posterior angles. 7d. Posterior margin. 7e. Anterior angles. 8. Prosternum, or under surface of thorax. 8a. Sternum. 8d. Insertion of cox. 9. Mesothorax and upper surface of abdomen. 9a. Mesothorax alone. 9. Abdomen, upper surface alone. 10. Metasternum and abdomen. 10a. Metasternum alone. 104. Abdomen, under surface alone. 10c. Parapleura, or side-pieces. 10d. Episterna, or breast-pieces. 12. Scutellum. Legs.—1l1. Anterior or first pair of legs. lla. Tarsi, or . feet. 116. Tibia, or shank. lle. Femur, or thigh. 11d. Trochante.. lle. Coxa. 13. Intermediate pair of legs. 15. Posterior pair of legs. The Wings.—14. Elytra. 14a. Suture. 145. Lateral margin. 14c. Apex. 14d. Base. 14e. Disc. 16. Wings folded on abdomen. 17. Left wing expanded. 18. Right wing folded . ; : - : 2 3 [I.—1. Dromius quadrimaculatus, 2. Lebia cyanocephala. 8. Tarus axil- laris. 4. Clivina fossor. 5. Notiophilus biguttatus. @. Dromius, maxilla. . Cicindela, head. ce. Cicindela, maxillary palpus. @. Tarus, labial palpi. e. Notiophilus, maxillary palpi. jf Lebia, maxillary palpi : III.—1. Nebria brevicollis. 2. Pogonus luridipennis. 3. Pristonychus terri- cola. 4. Sphodrus leucopthalmus. 5. Calathus cisteldides. a. Nebria, labial palpi. 0. Nebria, maxillary palpus. c. Pogonus, labial palpi. d. Pogonus, maxillary palpus - 4 : 4 2 : : : : IV.—1. Anchomenus dorsalis. 2. Pterostichus madidus. 8. Amara obsoleta. 4. Harpalus eneus. 5. Stenolophus Skrimshiranus. a. Pterostichus, right mandible. 6. Pterostichus, maxillary palpus. c. Harpalus, under side of leg. d. Harpalus, right mandible. e. Harpalus, maxillary palpus V.—1. Aipys marinus. 2. Philocthus biguttatus. 3. Notaphus [Bembidium] fumigatus. 4. Bembidium quadriguttatum. 5. Bembidium pallidipenne. a. ASpys, maxillary palpus. 6. Apys, labial palpi. ¢. A/pys, labrum. d.- Zipys, right mandible. e. /Epys, antenna 4 ; . : VI.—1. Agabus biguttatus. 2. Hydrophilus duodecim-pustulatus. 3. Hali- plus variegatus. 4. Cnemidotus czesus. 5. Pelobius Hermanni. a. Dyticus, process of metasternum. 0. Dyticus, maxillary palpus. ec. Dyticus, an- terior leg of male. d. Dyticus, labial palpi. e. Gyrinus, posterior leg. f. Gyrinus, antenna . : ; 2 : : 5 Rs / xu: PAS? 16 35 47 xiv LIST OF ILLUSTRATIONS. PAGE ViL.—1. Falagria suleata. 2. Aleochara fusecipes. 3. Atemeles emarginatus. 4. Oxypoda luteipennis. 5. Homalota brunnea. a. Staphylinus, anterior tarsus of female, undilated. 6. Staphylinus, anterior tarsus of male, dilated. c. Staphylinus, closing its wings with extremity of its tail, d. Falagria, maxillary palpus. ¢. Falagria, right mardible. f. Falagria, labial palpi. g. Falagria, antenna . - : : - . , -, 68 VIII.—1. Gyrophena gentilis. 2. Quedius dilatatus, 3. Creophilus maxil- losus. 4. Philonthus marginatus. 5. XNantholinus glabratus. a. Philon- thus, right mandible. 6. Quedius, right mandible. e¢. Philonthus, labial palpi. d. Quedius, labial palpi. ¢. Philonthus, antenna . ; : ey IX.—1. Stilicus fragilis. 2. Stenus bimaculatus. 3. Omalium florale. 4. Prognatha quadricornis. 65. Micralymma brevipenne. a. Stenus, ligula. b. Stenus, left mandible. c. Stilicus, right mandible. d. Prognatha, maxillary palpus. e¢. Prognatha, labium, f. Stilicus, maxillary palpus. g. Stenus, maxillary palpus ¢ : . ‘ : 5 : : Sin GPs X.—1. Necrodes littoralis. 2. Seydmenus tarsatus. 3. Anisotoma cinna- momea, male. 4. Agathidium levigatum. 6. Meligethes eneus. a. Seyd- menus, antenna. 6, Meligethes, maxilla. ¢. Anisotoma, labial palpi. d. Necrodes, maxillary palpus. e. Necrodes, labium, (f. Necrodes, antenna, g. Anisotoma, antenna. : a ; : ‘ f a Z + 192: XI.—1. Rhizophagus ferrugineus. 2. Colydium elengatum. 8. Anommatus duodecim-striatus. 4. Cryptophagus pilosus. 5. Mycetophagus quadripus- tulatus. 6. Dermestes murinus. @. Rhizophagus, antenna. 4. Colydium, antenna. c. Anommatus, antenna. d. Dermestes, pupa. e. Colydium, larva. .f. Dermestes, larva. g. Cryptophagus, antenna. hk. Mycetophagus, antenna. 7%. Dermestes, antenna F : 5 4 a : . 100 XIJ.—1. Byrrhus fasciatus. 2. Elmis eneus. 3. Heterocerus flexuosus. 4. Hydréus piceus, male. a. Byrrhus, antenna. 0%. Elmis, antenna, . Heterocerus, antenna. d. Hydré»_, tore leg of female. e. Hydrous, an- enna of male. jf. Hydréus, tarva . , 4 : c i 5 . 106 AJU.—1. Typheeus fumatus. 2. Cereyon anale. 3. Dorcus parallelopipedus. 4, Agrilus biguttatus, 5. Elatcr sanguineus, a, Agrilus, antenna. 0. Lypheeus, head of female. . Elater, antenna. d. Elater, head, under side. e. Elater, larva. f. Agrilus, larva . - : : ! uy . 120 XIV.—1. Campylus linearis. 2. Telephorus fuseus. 8. Clerus formicarius. 4. Anobium striatum. 5. Mezium sulcatum. a. Mezium. side view. 0, Mezium, antenna. c. Anobium, antenna, d. Anobium, larva. e. Clerus, larva, jf. Telephorus, larva . : : A ‘ j ; ; . 181 XV.—1. Blaps mortisaga.. 2. Diaperis boleti. 3. Tenebrio molitor. 4. Melandrya caraboides. 5. Orchesia undulata. a. Blaps, larva. 6. Melan- drya, larva. c. Tenebrio, larva. d. Blaps, antenna, e¢. Diaperis, antenna. f. Tenebrio, antenna. g. Melandrya, antenna, h. Orchesia, antenna. 144 XV.*—1, Sitaris humeralis. 2. Clerus apiarius. 3. Drilus flavescens, female. 4 Drilus flavescens, male. 5. Rhipiphorus paradoxus. a@. Balaninus nueum, head. 6. Rhipiphorus, larva. ¢. Rhipiphorus, antenna, male. d. Rhipiphorus, antenna, female. ¢ Meloé, young larva, magnified . » 147+ LIST OF ILLUSTRATIONS. XV PAGE XVIL—1. Pyrochroa coccinea. 2. Anaspis ruficollis. 3. Lytta vesicatoria. 4. Bruchus rufimanus, 5. Platyrhinus latirostris. «@. Pyrochroa, larva. 6. Platyrhinus, larva. ec. Bruchus, larva. d. Pyrochroa, antenna. e. Lytta, antenna. jf. Bruchus, antenna. g. Platyrhinus, antenna. Ah. Anaspis, antenna, 7% Lytta, claws. y. Platyrhinus, tarsus. ‘ é XVII.—1. Attelabus curculionoides. 2. Rhynchites Bacchus. $. Apion earduorum. 4. Sitones lineatus. 5. Cleonus nebulosus. a. Attelabus, antenna. 6. Rhynchites, antenna. ¢. Apion, antenna. d. Attelabus, tarsus. ¢. Rhynchites, tarsus. jf. Apion, tarsus. g. Rhynchites, maxillary palpus. 4%. Rhynchites, labium XVIII.—1. Molytes germanus. 2. Otiorhynchus picipes. 3. Pissodes pini. 4, Anthonomus pomorum, 5. Balaninus nucum. uw. Otiorhynchus, antenna. 6. Otiorhynchus, larva. ¢. Anthonomus, antenna. d. Anthonomus, maxii- lary palpus. e. Anthonomus, labial palpi. / Balaninus, pupa XIX.—1. Tychius venustus. 2. Orchestes fagi. 3. Orobites cyaneus. 4. Ceeliodes quercis. 5. Sitophilus oryze. a. Celiodes, head. 6. Orchestes, head. ec. Orchestes, hind leg. d. Orchestes, antenna XX.—1. Hylesinus crenatus. 2. Scolytus destructor. 8. Prionus coriarius. 4. Tonens typographicus. 5. Callidium violageum. a. Prionus, larva. b. Tomicus, larva. ec. Scolytus, larva XXI.—1. Gracilia pyemea. 2. Strangalia armata. 3. Astinomus edilis. 4, Pogonocerus pilosus. 5. Rhagium inquisitor XXII.—1. Donacia Menyanthidis. 2. Crioceris merdigera. 3. Chrysomela Staphylea. 4. Cryptocephalus coryli. 6. Timarcha levigata. a. Chryso- nicla, antenna. 6. Cryptocephalus, antenna. e. Cryptocephalus, labial palpi. d. Cryptocephalus, maxillary palpus. e. Donacia, antenna. fi Crioceris, antenna XXIII.—1. Prasocuris beccabunge. 2. Phyllotreta brassice. 8. Psylliodes hyoseyami. 4. Cassida viridis. 5. Triplax russica. a. Phyllotreta, larva. b. ‘Cassida, larva. c. Cassida, pupa. d. Cassida, maxillary palpus. e. Cassida, labial palpi . : XXIV.—1. Coceinelia ocellata. 4%. Lycoperdina boviste. 3. Trichopteryx atomaria. 4.°Pselaphus Heisei. 5. Claviger foveolatus. a. Coccinella, larva. 6. Coccinella, maxillary palpus. ce. Coccinella, labium. d. Cocci- nella, antenna. e. Coccinella, leg XXV.—1. Pachytylus migratorins. 2. Thamnotrizon cinereus. «a. Forceps of Forficula gigantea, male. 0. Do. female. ¢. Do. Forficula auricularia, male. d. Do, female. e¢. Blatta orientalis, egg-case. f. Do. section. g. Gryllotalpa, inside of front tibia. h. Do. outside. ¢ Do. labium. 7. Do. maxilla and palpus . 4 : : : Ser XXVI.—1. Perla marginata. 2. Limnephilus bicolor. 38. Phryganea minor. 4. Leptocerus ceiiraceus. a. Limnephilus, labium. 6, Limnephilus, maxilla. ¢. Labium, female. d. Labium, male. e. Anal appendages, or clasper, male : < : . . . 149 . 160 5 keys bo _ a . 226 xvi LIST OF ILLUSTRATIONS. PAGE XXVII.—1. Phleothrips coriacea. 2. Cordulegaster annulatus. 3. Raphidia ophiopsis. 4, Chrysopa vulgaris. 6. Osmylus chrysops. a. Eggs of Chrysupa . . ; . : . : : ; : : oi Wee XXVIIL—AnatTomMy OF A HYMENOPTEROUS INSECT.—THE HORNET (VESPA CRABRO). 1. Head and parts of the mouth. a. Lingua, or tongue. 060, Labial palpi. ec. Maxillary palpi. dd. Maxille. ee. Mandibles. f/f. Eyes. gg. Toruli, or beds of the base of the antenne. Ah. Ocelli, or simple eyes; sometimes called Stemmata. ¢ Clypeus. &. Labrum. /. Epipharynx. 2. Thorax. a. Mesothorax. 00. Tegule. ¢. Seutellum. d. Prothorax. e. Postscutellum. jf Metathorax. 38. Abdomen, upper surface. 4. Abdomen, profile. 5. Head, front view. aa. Antenne. 00. Eyes. ec. Ocelli. d. Scutellum. ee. Mandibles. 6. Thorax, under sur- ™Yace. a. Red :* coxe of pro-legs. 0. Sternum. c. Bed of coxe of inter- mediate legs. d. Bed of cox of posterior legs. e. Bed of neck. 7. Anterisr or pro-legs. a. Tarsus. 6. Tibia. ¢. Femur. d. Trochanter. zg. Coxa. 8. Middle or intermediate legs. 9. Hinder or posterior legs. 10. Right wings. a@. Costal cell. &. Externo-medial cell. ¢. Interno- medial cell. d. Anal cell. e. Marginal cell. jf First Submarginal cell. g. Second Discoidal cell. 4. Second Submarginal cell. % Third Sub- marginal cell. &, Fourth Submarginal cell. J. First Discoidal cell. m. Third Discoidal cell. ‘”. Mirst Apical cell. 0. Second Apical cell. 11. Left wings separated C - : : 4 5 5 : : . 296 XXIX.—1. Hylotoma rose. 2. Croesus septentrionalis. 3. Athalia spinarum, 4, Allantus serophularia. a. Croesus, larva. 0. Athalia, larva. c. Al- lantus, larva. d. Hylotoma, antenna, ¢. Creesus, antenna. jf. Athalia, antenna. g. Allantus, antenna - 3 3 ‘ 5 . s » 299 XXX.—1. Cimbex lutea. 2. Tenthredo zonatus. 3. Cryptus pallipes. 4. Lophyrus pini. a. Cimbex, larva. 6. Lophyrus, larva. ¢. Jopiyrus, cocoon. d. Do. antenna, male. e¢. Do. antenna, female . ; 4 , 201 XXXI.—1. Ichneumon proteus. 2. Ichneumou crassorius. $8. Tryphon rutilator. 4. Cryptus migrator. 5. Pimpla instigator. «@. Tryphon, larva. b. Pimpla instigator, female, rzofile of abdomen. c¢. Do. dried specimen. d. Do. seen from beneath. ¢. Do. abdomen of male . : : . . oak NXXIL—1. Microgaster glomeratus. 2. Mymar pulchellus. 3. Teleas elatior. 4. Cleonymus maculipennis. a. Teleas, antenna, female. 6. Do antenna, male. ¢. Microgaster, larva in caterpillar of cabbage-butterfly. d. Cocoons of Microgaster alvearius . 4 ‘ s . : . 326 XXXIII.—1. Chrysis ignita. 2. Mutilla Europea, female. 3. Mutilla Europea, male. 4. Formica rufa, winged female. 5. Do. neuter or worker. 6. Do. winged male. a. Formica rufa, labium. ¢. Do, antenna, male. e¢. Do. antenna, worker . F : ; : ~ ‘ A - 830 XXXIV.—1. Pompilus fuseus. 2. Astata bodps. 3. Mellinus arvensis. 4. Crabro quadrimaculatus. 5. Cerceris arvensis. a@. Pompilus, maxilla and palpus. 0. Do. labium. ¢, Mellinus, mandible. d. Do. labium. e. Do, maxilla and palpus. jf. Crabro, larva. g. Astata, head of female . . 342 LIST OF ILLUSTRATIONS. XVil XXXV.—1. Vespa crabro, female. 2. Vespa vulgaris, female. 3. Halictus rubicundus, female. 4. Dasypoda hirtipes, female. a. Vespa crabro, head of male. 0%. Dasypoda, leg of male. ec. Do. head of male. d. Halictus, head of male. ¢. Do. abdomen of male. jf. Vespa vulgaris, head of male. g. Vespa arborea, head. 4. Vespa vulgaris, head of female XXXVI.—1. Celioxys simplex, male. 2. Do. female. 3. Melecta armata, female. 4. Osmia rufa, female. 5. Megachile centuncularis, female XXXVII.—1. Anthidium manicatum. 2. Bombus lapidarius, female. 3. Do.neuter. 4. Do. male. a. Tongue of Anthidium, 6. Tongue of Bombus. e. Mandible of Anthidium : : - - - XXXVIII.—1. Apis mellifica, female. 2. Do.male. 3. Do.neuter. a, An- tenna, female. 06. Hind leg, male. c¢. Tongue of male. d. Antenna, male. e¢. Mandible, male. /f. Hind leg, neuter. g. Hind leg, female. h, Sting and venom glands - < : - A : XXXIX.—I. Front view of wad. IL. Side view. IIL. Fore wing.—1-5. Sub- costal nervules. 6, 7. Discoidal nervules. 8-10. Median neryules. 11. Submedian nervure. 12. Internal nervure, 138-15. Disco-cellular nervules. 16. Interno-median nervule. 17. Medianneryure. 18. Subcostal nervure. a. Costalnervure. 6. Costa, or anterior margin. c. Apex, or anterior angle. d. Posterior or hind margin. e. Posterior or anal angle. (7. Interior or inner margin. g. Base. h. Discoidal cell. IV. Hind wing.—1, 2. Sub- costal nervules. 8. Discoidal nervule. 4-6. Median nervules. 7. Sub- median nervure. 8. Precostalnervure. 9. Subeostal nervure. 10. Median nervure. 11, 12. Disco-cellular nervules. a. Costal nervure. 6. Costa, or anterior margin. c¢. Apex, or anterior angle. d. Hind margin. e. Tail, or caudal appendage. f. Anal angle. g. Abdominal or inner margin. 4. Base. V. Underside of body.—1-7. Abdominal segments. 8. Caudal or anal extremity. a@. Antenne. 0. Tarsus. c. Tibia. d. Femur. e. Palpi. f. The head. g. The thorax. hk. Abdomen . : XL.—1. Gonepteryx rhamni. 2. Colias edusa, male. 3. Pieris brassice. a. Pieris, larva. 6. Do. pupa. c. Do. egg. e. Do. palpus. jf. Do. head g. Do. claw of foot. d. Larva of Colias : ; : - XLI.—1. Vanessa antiopa. 2. Grapta C.album. 3. Argynnis aglaia. a. Argynnis, larva. 0. Argynnis, pupa c c . : - XLIT.—1. Arge Galathea. 2. Erebia blandina. 38, Apatura Iris. a. Apa- tura, non-walking fore-leg. 6. Do. club of antenna. ec. Do. larva XLIII.—1. Polyommatus dispar, female. 2. Do. male, under surface. 3. Polyommatus Adonis. 4. Hesperia Paniscus. 5. Hesperia alveolus. a. Polyommatus dispar, larva. 6. Do.pupa. e¢. Do. antenna. d. Do. palpus XLIV.—1. Anthrocera filipendule. 2. Sesia apiforms. 3. Deilephila euphorbie. a. Deilephila, larva. 6. Anthrocera, larva. c. Do. cocoon . XLV.—1. Zeuzera esculi.. 2. Cossus ligniperda. a. Zeuzera, larva. 2. Cossus, larva . ‘ 5 : é . . . . . NLVI.—1. Callimorpha Jacobee. 2. Deiopeia pulchella. 3. Gastropacha quercifolia. «. Callimorpha, larva. 6. Deiopeia, larva. c. Gastrovacha, larva s . . ; a PAGE YViil LIST OF ILLUSTRATIONS. PAGE ~ XLVII.—1. Pygeera bucephala. 2. Liparis, or Psilura monacha. 38. Orgyia antiqua, male. 4. Orgyia antiqua, female. a. Pygera bucephala, larva. 6. Orgyia antiqua, larva . 3 : : 5 - : 2 : XLVIII.—1. Gonepteryx libatrix. 2. Catocalanupta. 38, Rumia crategata. a. Gonepteryx, larva. 6. Rumia crategata, larva : . : XLIX.—1. Amphydasis prodromaria. 2. Scodiona belg aria. 8. Hibernia defoliaria. a. Biston, larva. 0. Hibernia, female. c. Hibernia, larva L.—1. Cheimatobia brumata. 2. Oporabia dilatata. 3. Melanippe hastata. 4, Melanippe montana. 6. Melanthia albicillata . : : : : LI.—1. Anticlea sinuata. 2. Scotosia certata. 3. Cidaria sagittata. 4. Chesias spartiata. 5. Tanagra cherophylata . - - e LIJ.—1. Cerura furcula. 2. Stauropus fagi. 8. Notodonta dromedarius. a. Stauropus, larva. 0. Notodonta, larva : 3 ° : : . LIUI.—1. Platepteryx faleula. 2. Psyche opaceila. 3. Thyatira batis. 4. . 438 . 449 . 459 466 Diphthera Orion. a. Larva, Thyatira. 6. Larva, Psyche - : . 474 LIV.—1. Leucania turea. 2. Agrotis segetum. 8. Mamestra brassice. 4. Triphena janthina, a. Tripheena, larva . C : : c “ . 476 LV.—1. Tryphena pronuba. 2. Phlogophora meticulosa. 3. Plusia chrysitis. a. Triphena, larva. 6. Phlogophora, larva : - : 5 : LVI.—1. Hypena rostralis. 2. Pyralis farinalis. 3. Aglossa pinguinalis. 4, Ennychia octomaculalis. @. Larva of Hydrocampa stagnalis. 6. Do. in its leaf-case : : : : : : : : - LVII.—1. Hydrocampa stagnalis. 2. Botys urticata. 3. Spilodes einctalis. 4. Stenepteryx hybridalis. a. Botys, larva. 0. Spilodes, larva A é LVIII.—1. Galleria cerella. 2. Crambus hamellus. 38. Chilo phragmitellus. 4. Tortrix costana. 4. Tortrix sorbiana. a. Galleria, larva. 06. Do. pal- pus of female, c. Do. palpus of male : < : - < : LIX.—1. Ephippiphora fenelia. 1. Ephippiphora scutulana. « 3. Peronea cristana. 4. Cnephasia octomaculana. 6. Xanthosetia zoegana A LX.—1. Depressaria nervosella. 2. Coleophora ibipennella. 8. Tischeria complanella. @ and J, Depressaria, larva. c¢. Coleophora, larva. d. Tis- cheria, larva LXI.—1, Lithocolletes corylella. 2. Nepticula aurella, a. Lithocolletes, larva. 0. Nepticula, larva 5 : 5 ° . - : LXII.—1. Ptyelus bifasciatus. 2. Centrotus cornutus. 3. Aphis tilie, female. 4. ‘Aphis tiliz,male. a. Aphis,leg. 0. Do. labium. ¢. Do. head LXIII.—1. Sehirus dubius. 2. Head, front view: a, Central lobe of face ; b, Crown. 3. Head, under side; a, Rostral channel, w:th the rostrum or beak in position. 4. Head, upper side; a, Ocellus. 5. Head, profile; a, Rostrum. 6. Rostrum. 7. Antenna. 8. Leg; a, Fulerum; , Femur, or thigh; ¢, Tibia; d, Tarsus. 9. Elytra and wing; a, Clavus: 6, Corium ; ¢, Elytron; d, Membrane; e, Wing . A 4 : : b % i . 480 . 489 494 . 016 . 624 637 556 LIST OF ILLUSTRATIONS. X1x PAGE LXIV.—1. Asopus luridus. 2. Verlusia rhombea. 3. Coreus hirticornis. 4, Pyrrhocoris apterus. a. Do. fore-leg. 0. Do. side view of head, show- ing antenna and tongue . : : ° ‘ : - LXV.—1. Neides depressus. 2. Rhyparochromus dilatatus. 3. Henestaris laticeps. 4. Phytocoris tiliz. @. Rhyparochromus dilatatus, leg. 0. Do. head, antenna. and tongue : : : 3 ° . : . : LXVI.—1. Systellonotus triguttatus, male. 2. Do. female. 3. Orthocephalus hirtus. a. Do. head, antenna,and rostrum. 0. Do. tarsus. c¢. Do. labrum. d. Do. elytron. ¢. Do. wing . , 5 ¢ : : LXVII.—1. Acanthia lectularia. 2. Coranus subapterus, 3. Reduyius per- sonatus. a. Acanthia lectularia, fore-ler. 6. Do. Antenna. c¢. Do. head, showing position of rostrum. d. Do. rostrum . : ‘ . LXVIII.—1. Hydrometra gibbifera. 2. Hydrometra argentata. 3. Corixa Geoffroyi, 4. Halticocoris luteicollis. a. Hydrometra argentata, fore-leg. 6. Do. head, with antenna and tongue : ; - “ LXIX.—1. Pulex talpe. 2. Pulex irritans. 3. Culex pipiens, male. a. Pulex talpe, mentum and palpi. 06. Do. side view of head. c¢. Do. palpus. d. Do, tarsus. e¢. Pulex irritans, pupa. jf. Do. mentum and palpi. g. Culex pipiens, male, palpus. #, Do. antenna . : - : LXX.—Tipula longicornis. a. Side view of head, showing antenna, palpus, and mouth. 6. Pupa. ce. Larva. d, Front view of mouth, showing the two lobes . - : 5 - - - - . . . ‘ LXXI.—1. Asilus crabroniformis. 2. Asilus germanicus. 3. Stratiomys fureata. 4. Eristalis tenax. a. Asiluscrabroniformis, tarsus. 06. Stratio- mys furcata, antenna. c¢. Eristalis tenax, antenna . 5 . . LXXII.—1. Volucella pellucens. 2. Volucella plumata. 3. Merodon clavipes. 4. Syrphus lucorum. a. Volucella pellucens, clypeus. 6, Do. antenna. ce. Do. ocelli. d. Do. front of head. e. Syrphus lucorum, antenna LXXIII.—1. Syrphus (or Sceva) pyrastri. 2. Conops macrocephalus. 3. Tachina ferox. 4. Tachina grossa. a. Do. head. 6. Do. antenna. cc. Conops macrocephalus, abdomen of male . - A . . LXXIV.—1. Musca, or Anthomyia lardaria, female. a. Do.antenna. 0b. Do. foot. c¢. Do. facets of eye. 2. Musca chloris, male. d. Musca chloris, head of female. e¢. Do. tongue. #1 Do. antenna . - LXXV.—1. Musca domestica. 2. Scatophaga’ seybalaria. 38. Scatophaga stercoraria. a. Seatophaga scybalaria, antenna. 0%. Do. tongue 5 UXXVI.—1. Phora abdominalis. 2. Ornithomyia fringillaria. @. Phora abdominalis: head, side view. 06. Do. leg. ¢. Ornithomyia fringillaria, leg. d. Do. maxilla : . ° . . - 008 . 566 608 . 612 . 623 . 628 - 629 - 632 635 xx LIST OF ILLUSTRATIONS. PAGE LXXVII.—1. Hippobosca equina. 2. Stenopteryx hirundinis. a. Hippo- bosea equina, antenna. 6, Do. maxilla. ce. Do. fore-leg. d. Stenopteryx hirundinis, fore-leg. e¢. Do. lip and tongue. jf. Do. antenna . ; . 641 LXXVIII.—1. Hemobora pallipes. 2. Nyctoribia Latreilli. a, Hzmobora, front view. 6. Do. leg. ¢. Do. mentum. d. Nyctoribia, leg. . Do. head, side view F : P . 644 . . ° . ° LXXIX.— Setting’ Insects for the cabinet . . 2 ° . . 646 INSECTS AT HOME. CHAPTER I. INTRODUCTION. MMIHERE is scarcely a branch of science, however interesting it may be, which does not at first repel the intending student py the array of strange words with which the treasures of know- ledge are surrounded. This is especially the case in Botanv and Zoology, which contain, in addition to the usual technical language, vast numbers of names belonging to various plants or animals, each name consisting of two words, one denoting the genus and the other the species. That many have been deterred from pursuing a study hedged about with such difficulties is not a matter of wonder, and it is much to be regretted that writers on science too often increase rather than lessen the difficulties by their purely technical mode of handling the subject. The real cause of the general repugnance to science is to be found in the mode of writing adopted by too many scientific writers, who forget the first principles of instructive writing, and do not identify themselves with the minds of those whom they are endeavour- ing to teach. The study of Enromo ogy, or the knowledge of insects, has greatly suffered from this cause. It is one of the most fas- einating of pursuits. It takes its votaries into the treasure- houses of Nature. and explains some of the wonderful series of hnks which form the great chain of creation. It lays open B Z INSECTS AT HOME. before us another world, of which we have been hitherto un- conscious, and shows us that even the tiniest insect, so small perhaps tnat the unaided eye can scarcely see it, has its work to do in the world, and does it. Among the insects, too, we find not only instinct, but reason. We find that in these lesser creatures the passions and emotions of humanity have their counterparts. Love, for example, developes itself in many ways, and so does hate; and, indeed, if the whole list of human qualities be examined, there is scarcely one which cannot be found in the insect world. The habits of insects are very mines of interesting knowledge, and it is impossible carefully to watch the proceedings of any insect, however insignificant, without feeling that no writer of fiction ever invented a drama of such absorbing interest as is acted daily before our eyes, though to indifferent spectators. Thus, even in the mere structure of insects there is more than enough material for the study of a lifetime. Putting aside the wonderful internal mechanism, which ought to be examined when practicable, the outward form is full of interest. We find among insects a variety and brilliancy of colour that not even the must gorgeous tropical flowers can approach, and that some of our dullest and most insignitecant little insects are, when placed ander the revealing lens of the microscope, ab- solutely blazing with natural jewellery. The variety of form, too, is quite as boundless as that of colour, so that there is much excuse even for the mere collector, who cares nothing for insects unless he can kill them and set.them in rows in a cabinet. In the following pages I intend to describe, as far as possible within so limited a space, Insects at Homs, and, though giving the needful scientific information, to use few technical terms, and always to explain those which of necessity must he, employed. Our first business is evidently, when treating of Insects at Home, to define precisely what an insect is. This seems to bea simple matter enough; but it really is not so, the question being one which has occupied systematic zoologists for many years, and which is even now rather a dubious one in severai cases. The word insect is, as a rule, employed very loosely by those who haye not studied the subject. Spiders, for example, are generally ealled insects, and so are woodlice, centipedes, and a variety * | DEFINITION OF AN INSECT. 3 of other creatures which have really no right whatever to the title. We will therefore see what an insect really is. {Insects are technically described as being ‘ articulated ana- mals, breathing by trachee, divided into three distinct portions —-viz.the head, the thorax, and the abdomen—passing through a series of tr ansformations, and having in the perfect or “winged” state six articulated legs and two antenne.’ We will now take this description and examine it in detail. The articulated animals are formed on a totally different plan from the vertebrates, molluscs, radiata, or other divisions of the animal kingdom. Their bodies: are formed of a series of flattened rings, within which are contained all the muscles and vital apparatus. It will be seen that a vast number of animals come within this definition, which includes not only the insects, but the Crustacea, such as the crabs, lobsters, shrimps, woodlice, and others; the Arachnida, such as the spiders, scorpions, and mites; the Myriapoda, such as the centipedes and millipedes; and the Annelida, of which the common worm is a familiar example. It is necessary, there- fore, to find some mode of distinguishing tne insects from all the other articulates, and, after much trouble, systematic naturalists have agreed upon the short formula which has already been given. It is there stated that insects breathe through ‘ trachex.’ Now trachez are tubes composed of thin membranes, kept open by a fine but stiff wiry thread, which is twisted spirally throughout the whole course of the tube, just as a modern flexible gas-tube is kept open by a spiral wire, no matter how it may be twisted or bent. This is absolutely necessary in insects, for the tracheze are not confined to a single portion of the body, like the lungs of men or the gills of fish, but per- meate the entire insect, passing through all the limbs, and even reaching to the claws which terminate the feet. Any of my readers who wish to see the extraordinary manner in which the breathing apparatus is disposed over the whole body should look at the plates of Strauss Durckheim’s wonderful work on the common cockchafer, a work to praise which would be simply impertinent. I strongly advise all my readers to examine these marvell¢ us structures for themselves. There is not the least pS in BQ 4 INSECTS AT HOME. finding them, for the real difficulty is to dissect any part of the body without finding them. The largest of these tubes are those which run along the sides of the insect, and are con- nected with the oval openings along the sides, which are pos- sessed by every insect. These openings are called spiracles, from the Latin word spiro, because through them the insect breathes. Any insect or caterpillar will furnish the trachex. but the larger the better. They should be severed from the body by a pair of fine scissors, then taken out with a pair cf forceps, and laid on a glass slide. I have now before me a preparation of the trachese of a silkworm which I made twenty- two years ago, and it is not the least damaged by keeping. These trachez afford a most important characteristic of the insects, inasmuch as the Crustacea do not possess them at all, and the Arachnida generally, though not always, breathe by means of internal air-sacs. Next, the creature must be divided into three distinct portions. This is the signification of the title Insect, which is derived from two Latin words, signifying cut-into, while the familiar Greek name of Entoma (from which the word entomology is formed) has precisely the same signification. This is, perhaps, the most important of all the characteristics, asin the Crustacea and Arachnida the head is merged into the thorax, so that they are divided into two portions instead of three; while in the Myriapoda and Annelida there is no distinct thorax, and some- times scarcely a distinct head. Next we come to the transformations which insects have to undergo before they reach their perfect or adult state. All animals really undergo a course of transformation, but in the insect they take four very distinct forms; namely, the Egg, the Larva (i.e. caterpillar or grub), the Pupa (or chrysalis), and the Imago, or perfect insect. Any of my readers who have had silkworms will be practically acquainted with this fact, and will also know that the larva changes its skin, or moults, several times before it assumes the pupal form. The reason for this casting of skin is evident. The larva, like the perfect insect, is made of a series of flattened rings, or rather, of a double series of half rings, connected along the sides ty an elastic membrane, so as to permit the creature to breathe and eat. TRANSFORMATION OF INSECTS. & Now, the upper and lower portions of these rings are vom- paratively inewstic, and cannot themselves expand, thougn they can be opened wider at the sides in proportion to the interior expansion of the body. Meanwhile, the larva continues busily its sole business, that of eating, and increases rapidly ii: size, so that, within a certain time, its skin is stretched to the utmost, and can expand no more. Sti.! ~e larva continues to increase, though its tight integumeuts cause it so much un- easiness that it ceases to eat, and at last the overstretched skin bursts, and the larva emerges, clad with a new skin, which has been forming under the old one. As soon as it is free, it takes a number of deep respirations, and in half an hour, or thereabouts, is so much larger than its cast skin, that to put it back again would be fatal. This process is repeated until the larva is about to assume the third or pupal state. In consequence of this mode of development, the whole of the growth is completed during the larval state, and, however long an insect may live, it never grows after it has attained its perfect form; and, though it is common enough to find insects though of the same species yet of very different sizes, the larger have not grown since their last change, nor will the small specimens ever attain the dimensions of their larger relatives. In a measure, the same rule prevails among mankind, and. though some may be giants and other dwarfs, the dwarf will never become a giant, nor has the giant ever been a dwarf, and. different as are their sizes, both ceased to grow when they attained the age of manhood. The modes of passing through the successive changes of forin are exceedingly variable in the different orders of insects, and are always most interesting to careful observers. I shall not ' mention them in this place, but shall give the descriptions of the metamorphoses together with the history of the different species. Next in order comes the statement that all true insects have six legs when they have attained the perfect form, or Imago. The reader will see that this definition at once ex- cludes all other Annulata. The Crustacea, for example, have a considerable number of legs, and the Arachnida are eight- legged, while the Myriapoda are, as their name infers, many- legged, and the Annelida have no legs at all. It is true 6 INSECTS AT HOME. that in some insects there only appear to be four legs, hut, in these cases, the apparently missing organs may be dis- covered on careful examination, much reduced in size, but still presenta, ‘ A similar observation may be made with regard to the an- tennz, or, as they are popularly called, ‘horns,’ or ‘feelers.’ The word antenna is a Latin one, signifying the yard-arm of a ship, and has been appropriately given to these organs. In most cases the antenne give great character to the aspect o. an insect. Insome of the Beetles, for example, they are slender, and each joint is so lengthened that the antenne are five times as long as the body. In others they are comparatively short, sometimes deeply toothed like combs, sometimes terminated with a round club, sometimes with the ends developed into a beautiful fan-like apparatus, and sometimes looking like a number of coins joined together by a string running through their centre. The knob-tipped antennez of the butterflies are an unfailing characteristic whereby these insects can be dis- tinguished from the moths, with their sharp-tipped antenne ; while in the latter group of insects, the antenne of the male are often wide and feathered, those of the female being mere jointed threads, without any feathering whatever. Many in- sects seem to be altogether without antennez, but, like the undeveloped legs already mentioned, they can be found in their places, though so small as to escape a hasty observation. Having now briefly examined the general characteristics of insects, we will take them in detail. Among the insects, the CoLnoprera, or Brrries, are acknow- ledged to hold the first rank, their development being more perfect than is found in any of the other orders. The name of Coleoptera is composed of two Greek words, signifying sheath- wings, and is given to this order of insects in consequence of their leading peculiarity, which is, that the upper pair of wings is modified into horny or leathery cases, called elytra, useless in flight, but employed in protecting the membranous under pair of wings, which alone are used in flight. In many Beetles the lower pair of wings is not developed, and in a few both pairs are practically wanting, though the practised eye can always detect them in a rudimentary form. The wings and DEFINITION OF A BEETLE. i elytra, together with other portions of the Beetle, will presently be figured and described. The changes, or metamorphoses, of the Beetles, though sin- gularly interesting, are not easily seen, as Beetle larve require food which is, as a rule, not easily procured, and in many cases is so noisome that few persons would like to meddle with it. A great number are carnivorous, feeding upon various living creatures, so that to supply them properly with food is next to impossible ; while, as the majority of them pass two years or more in the larval state, the process of rearing them is tedious as well as difficult. All who have had silkworms, or have been in the habit of watching insects when at liberty, are familiar with the appear- ance of the three principal forms assumed by the moths and butterflies in their different stages of growth—the caterpillar, with its soft, cylindrical, ringed body, the pupa or chrysalis, covered with a hard, shelly case, and the perfect insect, with its beautiful wings. Now, although the Beetles pass through similar changes, they do not assume similar forms. The larva of the Beetle is, like that of the moth or butterfly caterpillar, soft and ringed, and sometimes so resembles the caterpillar that it may easily be mistaken by anyone unskilled in ento- mology. Figures of the larve will be given in connection with the different species. Thus far the Beetle and moth bear some resemblance to each other, but when they come to assume the pupal form, they are so dissimilar that no one could possibly mistake one for the other. Inthe moth pupa all the limbs are hidden under a hard covering, but in the Beetle pupa all the members of the insect are visible, though they are covered with a skin which binds them down, and prevents them from being used until the insect attains its perfect form, and bursts through the investing skin. A figure of the larva and pupa of a Beetle may be seen by referring to the Bacon Beetle (Dermestes lar- darius), Woodcut XI. If the reader will carefully examine the various stages of Insect life, he will see that, whether the creature be in the larval, pupal, or perfect state, the number of rings of which it is composed are the same. Take, for example, a Beetle larva, and it will be found to consist of thirteen rings, or 8 INSECTS AT HOME. segments. The first of these forms the head, the next three carry the legs, and the remaining rings constitute the body. Should the same larva be successfully reared, and examined after it has reached the perfect state, it will be found to have precisely the same number of rings, though some are fused together, and others are greatly modified. There are few things more marvellous than the development of a Beetle—say, for example, the Stag Beetle, because we shall presently examine one of these insects in detail. In its larval state it is a large, fat, soft grub, with legs so disproportioned to the size of its body that it cannot walk, but can only move about while lying on one side. It lives in the dark, buried in the interior of some tree, and feeds upon the fragments of wood which it bites off with its short but sharp and powerful jaws. In its perfect state, it is furnished with highly developed legs, with two wide and powerful wings, sheltered under their horny elytra, with an elaborately organised mouth, and two enormous jaws, while the antenne and eyes are in themselves absolute wonders of mechanism. The larva of this Beetle is almost exactly like that of the cockchafer, shown in Plate V.; and the reader will see that it is hardly possible to imagine a more complete contrast than exists between the very shapeless erub and the insect in its perfect form. In the accompanying illustration we have an example of the Beetle, taken to pieces so as to show the various parts. The Stag Beetle has been chosen for the purpose. We begin with the head and its appendages. Fig. 1 shows the mandibles, or upper jaws, which in the male Stag Beetle are of very great size. Fig. 4 shows the maxille, or lower jaws, with the maxillary palpi, or jaw-feelers, Fig. 4a. Fig. 3 shows the labium, or lower lip, with the labial palpi, or lip- feelers, 3a. Next come the antenna, or feelers, Fig. 2. These organs are divided into two parts—namely, the scape, or long joint nearest the head, Fig. 2a, and the club, 2b. This latter portion is subject to most extraordinary variations of form, as will be seen in the following pages. The head itself is shown at Fig. 5, the upper surface being here given. 5aa are the eyes, 5b the vertex. or crown of the head. 5e is the occiput, or back of the head; and 5d the ANATOMY OF A BEETLE. 9 LUCANUS CERVUS. DISSECTION. Parts of the Head.—1. Mandities, or jaws. 2. Antenne, 2a. Scape. 2b. Club. 3. Labium, or lower lip. 3a. Labial palpi, or lip-feelers. 4, Maxille, or lower jaws. 4a, Maxillary palpi, or jaw-feelers, 5. Head, upper surface. 5a. Eyes. 5b. Vertex, or crown, 5c. Occiput, or back of head. 5d. Clypeus, or shield. 6. Head, under surface. 6a. Eyes. 65. Insertion of antenne. Parts ef Thorax and Abdomen.—i7, Pronotum, or upper surface of thorax. 7b. Anterior margin, 7c. Posterior angles. 7d. Posterior margin. 7e. Anterior angles. 8. Prosternum, or under surface of thorax. 8a. Sternum. 8b. Insertion of coxe. 9. Meso- thorax and upper surface of abdomen. 9a. Mesothoraxalone. 9%. Abdomen, upper surface alone. 10. Metasternum and abdomen. 10a. Metasternum alone. 10. Abdomen, under 7a. Lateral margin. surface alone. 10c. Parapleura, or side pieces. 10d. Episterna, or breast-pieces. 12. Scutellum, Legs.—11. Anterior, or first pair of legs. lla. Tarsi, or feet. 116. Tibia, or shank. Ile. Femur, or thigh. lld. Trochanter. lle. Coxa. 13. Intermediate pair of legs. 15, Posterior pair of legs. The Wings.—14. Elytra. 14a. Suture. 146. Lateral margin. 14c. Apex. 14d. Base. 14e. Disc. 16, Wings folded on abdomen. 17, Left wing expanded, 18. Right wing folded. 10 ; INSECTS AT HOME. elypeus, or shield, which covers the actual mouth. Fig. 6 shows the under side of the head. 6aa are the eyes, 6b the insertion of the antenne. As reference has been made to the eyes, it must be men- tioned that these organs, although apparently only two in number, are in reality compound eyes, being made of a vast number of facets gathered into two groups, one on each side of the head. There is an apparent exception to this definition in the well-known Whirligig Beetles (Gyrini), which appear to have four eye-groups, two above and two below. This ex- ception is, however, more apparent than real; the eye-groups being in fact only two, but each pair being crossed by a band of the horny material of which the outer skeleton is composed. The compound eyes can be seen to great perfection in some of the butterflies ; but for this purpose, a careful manipulation of the microscope is needed. If the reader should be disposed to prepare a portion of the compound eye for the microscope, he will find that the opera- tion, though a rather tedious one, will well repay him for the trouble. Should he wish to do so, he can so arrange the eye that some small object can be seen through it, when the effect will be extraordinary, the object being apparently multiplied in accordance with the number of facets in the field of the micro- scope. The result is, in fact, exactly the same as that which is produced by looking at any object through an ordinary multi- plying glass. It is not, however, to be imagined that because the compound eye of the insect has so many facets, the insect perceives the object multiplied in proportion to the facets; for, although the numerous facets give the insect an extended range of vision, they convey but one image to the brain, just as the duplicate eyes and ears of man convey to the mind but one image and one sound. In addition to these compound eyes, many insects possess several small simple eyes, called ocelli. They are very small, ‘and in the Beetles are two in number, and placed on the back of the head. They can be very easily seen in some of the Hymenoptera, such as the bees and wasps. The eyes of the spider are of a similar character. Havine examined the head, we now take the next division of PARTS OF THE THORAX. ll: the insect, namely the thorax. Thisimportant part bears ali the instruments of locomotion, whether they be legs or wings; and is most wonderfully constructed for the purpose, being s1pplied in. the interior with hard projections that are needed for supporting the powerful muscular apparatus needful for flight, and the less powerful, but still important system by which the legs are moved. The thorax is internally divided into three parts, which we call prothorax, or front thorax; mesothorax, or middle thorax ; and metathorax, or hinder thorax. Beginning with the pro- thorax, we find it again divided into two portions, the upper and the lower—the former going by the name of pronotum, i.e. in front of the back, and the other called prosternum, i.e. in front of the breast. Fig. 7 shows the pronotum of the Stag Beetle: 7aa are the lateral margins, 7b is the anterior margin, 7cc are the posterior angles, 7d the posterior margin, and 7ee the anterior angles. Next we come to the prosternum, which is shown at Fig. 8 ; 8a being the sternum, and 80) the insertion of the coxa, a joint which will be presently described. The mesothorax with the abdomen is shown at Figs. 9 and 10, the former exhibiting the upper, and the latter the under sur- face. In the last figure, a is the metasternum, b the abdomen, e the parapleura, or side-pieces (sometimes called paraptera, because they are situated by the wings), and d the episterna, or breast-pieces. Each of these portions is set apart for a definite use, and is employed for the attachment of some portion of the locomotive apparatus. The prosternum is used to carry the front pair of legs, as can be seen by looking at the under side of any large Beetle, or indeed of any small one, by the aid of a magnifier. The mesothorax bears the elytra, or wing cases, and the intermediate pair of legs, the former being attached to the upper part, or mesonotum, and the latter to the lower part, or mesosternum. The reader must remember that the word ‘sternum’ always signifies the breast, or under side of the thorax, and ‘notum’ the back, or upper side. Lastly, the mesothorax bears the lower, or membranous, wings and the last pair of legs. As before, the wings are attached to the = ‘2 INSECTS AT HOME. upper part, or metanotum, and the legs to the lower part, o2 metasternum. We come now to the legs, the three pairs of which are repre- sented successively at Figs. 11, 13, 15; the first pair being called the anterior legs, the second the intermediate legs, and the third the posterior legs. These legs are divided into several portions, which are marked at Fig.11. Beginning at the extremity of the limb, a is the tarsus, or foot, which consists of several joints. There are mostly five joimts in the tarsus of Beetles, but in many families one or two of the joints are so small as scarcely to be visible, and only to be detected by a practised eye with the aid of a tens. Next comes the tibia, or shank, which is shown at b. Then follows the femur, or thigh, as seen at c. This is attached to a small joint called the trochanter, which is drawn at d; and last comes the coxa, or the joint which connects the limb with the thorax. The action of the coxa is very curious, it being a kind of ball-and-socket joint, but with a limited range of movement, so that the legs cannot be spread too far. The same divisions of the joints are found in: the three sets of legs. We next come to the wings. The upper pair, or elytra, are shown at Fig. 14. For convenience of description they are marked into several divisions. Fig. 14a is the suture, or line of junction between the two elytra. The apex is shown at ¢, and the base at d. The middle, or disc, is marked e, and the lateral margin is at b. Fig. 17 shows one of the wings ex- panded, as if for flight; Fig. 18 is the opposite wing, repre- sented as folded, and at Fig. 16 are shown both wings as they appear when the elytra are removed. At first sight some of these terms may appear to be harsh, repulsive, and difficult to master. In reality they are not so, and a knowledge of them is absolutely necessary to anyone who wishes to understand the description of an insect, and himself to describe insects intelligibly. They form a kind of shorthand by which knowledge can be rapidly communicated, and the trouble taken in learning them is amply repaid by the advantage gained by the student, even were the trouble multi- plied tenfold. But, in reality, there is scarcely any trouble needed. If the MODE OF DISSECTING BEETLES. 13 intending entomologist should content himself with merely learning a string of names by rote, he must expect to find his lesson a hard and repulsive one, and that it will be forgotten almost as soon as learned. Practical knowledge is ever the best, and the reader who intends to become an entomologist should take some Beetle—the largest he can find—and com- pare it, piece by piece, with the figures and description. The most effective plan of all, however, is to take the Beetle entirely to pieces, and to lay out the portions on a card in their proper order, numbering each piece, and writing an index to the numbers. The various portions can be fixed to the card by diamond cement or Kay’s coaguline, the latter having the advantage of great holding power, so that a very - little is required, perfect transparency, and sufficient elasticity to guard against the tendency to chip away from the object, which is so unpleasant in ordinary gum. I recommend taking two Beetles, so as to show the upper and under sides of each portion. This will be found peculiarly interesting in the thorax. . Before any attempt at dissecting the Beetle it should be steeped in soft water for a time, until the soft parts are thoroughly dissolved. The water should then be poured away, and fresh water substituted until the whole of the muscles and viscera have been washed away. Care must be taken lest any of the smaller joints be lost during this process. When the whole skeleton is fairly laid out, it can be mounted in a glass frame, and, besides serving as an infallible guide to the external ana- tomy of the Beetle, it is really a pretty and ornamental object. Many years ago, when I first began the study of entomology, I thus prepared several Beetles, and the knowledge thus gained has never been lost. Had I studied books alone, I should not have been able to gain the information half so easily, or te have retained it half as long. CHAPTER II. THE GEODEPHAGA. Tue word with which this chapter is*headed is not a very alluring one, and yet to an entomologis‘ it would say that the chapter contains the history of the best developed and some of the most interesting of the British Beetles. The term Geode- phaga is formed from two Greek words, signifying earth-de- vourers, and is given to the large group of predacious Beetles which live oft the ground. There is another large group, called the Hydradephaga, or water-devourers, i.e. those predacious Beetles which inhabit the water. We will take these twe important groups in succession, selecting such examples as may best illustrate them. It must be, in the first place, observed that any Beetle may he recognised as belonging to either of these great groups by the structure of the mouth. In reference to the illustrations already described, the reader will see that each of the maxilla (Fig. 4) is furnished with a four-jointed maxillary palpus. All these carnivorous Beetles possess the same organs, but, in addi- tion, they have an inner lobe, which is also furnished with its palpus. Several examples of this structure may be seen by reference to the accompanying illustration (Figs. a,c, e, and /). Both these groups are associated in one large group called Adephaga, the word being a Greek one, and signifying greedy or gluttonous. Brernning with the Geodephaga, we take the first family of the group, the Cicindelid#, or Tiger Beetles. In all these Beetles there is a little movable hook at the end of the maxilla, and the ligula is very short, and not appearing beyond the mentum. There is unly one genus of these Beetles in- habiting England, and thisir the typical genus Cicindela The TIGER BEETLES. TS members of this genus vary but little in size, being abovt half an inch in length, having slender legs and antenne, powertul and curved jaws, and very rounded and prominent eyes. They are all prettily coloured, and some are absolutely magnificent when viewed with the aid of a magnifying glass. Never was a popular name more appropriate than the title of Tiger Beetles, which has been given to this genus. If we COLEOPTERA. 1. Dromius quadrimaculatus. 2. Lebia cyanocephala. 8. Tarus axillaris. 4. Clivina fossor. 5. Notiophilus biguttatus. a. Dromius, maxilla. 6. Cicindela, head. C. Cicindela, maxillary palpus. d. Tarus, labial palpi. e. Notiophilus, maxillary palpi. 7. Lebia, maxillary palpi. can imagine tigers who, in addition to active limbs, their teeth, and their talons, are furnished with large and powerful wings, we can form some idea of the part which these creatures play in the world of insects. We will take as our first and typical example the common GREEN Tiger BreEtLe or SPARKLER (Cicindela campestris). 16 INSECTS AT HOME. At Fig. b of Woodcut II. is shown the head of this insect, magnified some six diameters, in order tc show the extremely formidable jaws with which it is armed. These jaws are not only sharp at their points, and strongly curved, but are boldly toothed; so that when the Beetle has once seized its prey, the unfortunate insect has but little chance of escape. The colour of this beautiful beetle is gold-green above, and shining copper-green below; and there are several yellowish spots on the elytra, varying much in shape, number, and hue. Sometimes there are only three, but in many specimens there are six. In former times, the variety in the number of spots was thought to indicate that the Beetles belonged to different species, but it is now decisively ascertained that they are only varieties of one single species. When this Beetle is casually examined, the elytra and head seem to be merely dull green, but when a powerful light is brought to bear on them, and they are placed under a trust- alee lens, they absolutely blaze with #»m-like hues, so that the eye is almost dazzled with their splendour. Scarcely any two specimens are exactly alike, but in all there is a brilliant metallic resplendence, sometimes as of pale gold, and some- times as of red gold. 2 If the wing-cases be opened, and the broad membranous wings spread, the upper surface. of the abdomen is seen to be deep shining blue, very much like the colour of the ordinary ‘ blue- bottle’ fly. As the Beetle darts through the air in the sunshine, the light glitters on the burnished blue surface, a circumstance which has ed for the Beetle the popular name of Sparkler. One peculiarity of this insect is the strong but pleasing scent which it emits. I well remember the first time that I saw and captured this Beetle. It was on a sandy bank in Bagley Wood, near Oxford, and I could not for some time guess the origin of the pleasant, sweet-briar sort of scent which clung to my hands. For some time I thought that I must have grasped some fragrant herb, and it was not until I had taken the Beetles out of the box (where, by the way, nearly one half had been killed and partly eaten by the other half) that I discovered the real source of the perfume. The habits of all the species being very similar, we will pass to another insect belonging to the same genus. aie in} ) Le PLAT ET: TIGER BEETLES AND BOMBARDIER: . Cicindela sylvatica and larva. . Cicindela maritima and larva. Cicindela germanica and larva. . Broscus cephalotes. . Brachinus crepitans. Or Rm & bo re . Carabus monilis. PLANTS :— Bramble (Rubus fruticosus). Above. Heath (Zrica cinerea). Right of Middle. Lavender Thrift (Statice Iimonium). Left of Midéis Fern (Pieris aguitna). Above Feath. il LARVA OF THE TIGER BEETLE. : 17 On Plate I. Fig. 1, is seen the Woop Tiger Brgtiz (Crcindela sylvatica). This, although a really beautiful insect, cannot lay elaim to the splendid colouring which adorns its congener, the Green Tiger Beetle. The colour of this insect is brown above, with a decided purple gloss. The elytra have a cream-white curved mark at the base, a narrow wavy mark of the same colour in the middle, and a round spot close to the apex. Below, it is deep bluish-green, often glossed with copper and purple. This species is found in various parts of England, and chicAy haunts sandy heaths and similar places. The reason for this habit is, that in such localities the larva can find a home, and the perfect insect a livelihood. The larva of the Tiger Beetle is an odd-looking creature, having a broad flat head, armed with sickle-shaped jaws, and the two next segments very large. The eighth segment is developed to an extraordinary degree, and is furnished on the back with two large tubercles crowned with reddish bristles, and carrying two sharp recurved hooks, the use of which will presently be seen. In consequence of this peculiar form, the larva has been compared in shape to the capital letter Z. The colour is whitish. These odd-looking larve are burrowers, making tunnels in the sandy soil nearly eighteen inches in depth, and a little wider than the diameter of the body. They excavate in rather an ingenious manner. With their jaws, assisted by their front pair of legs, they scrape away the sand, and allow it to rest upon the flat broad head. They then work their way up the tunnel, and, when they have reached the orifice, throw off the burden. The creature intends to make a perpendicular burrow, but is sometimes obliged to alter its shape, in consequence of coming across a stone or a furze-root. Sometimes, if a stone or root happens to be a large one, the larva is obliged to abandon its’ unfinished task, and begin another tunnel. On Plate I. are shown the tunnels of several species of Cicindela; the larva being shown in the burrow, and the perfect insect near its mouth. The third burrow, that of Cicindela germanica, is represented as only partially completed, so that the Jarva might be shown in its attitude of repose. When the larva feels hungry, which is generally the case, it ascends tu the mouth of the tunnel, and anchors itself there by e 1s INSECTS AT HOME. a pressing the points of the hooks against the sides, so that no muscular exertion is required in order to keep itself from falling down the burrow. It then opens its jaws widely, and waits for prey. In this position it is all but invisible; and many a small insect runs heedlessly within its reach, and is instantly seized in the terrible jaws. No sooner is the capture made than the Cicindela larva retires to the end of its tunnel, and there-devours its prey in peace. At Fig. 3 of Plate I. is shown the larva at the bottom of the burrow, engaged in eating an ant which it has just caught. It is not very easy to procure the larvee, even in places where they are tolerably common. In the first place, their peculiar mode of life keeps them much out of sight. The mouth of the burrow is not large; and when the larva suspects danger, it immediately retreats to the bottom of its tunnel, and there waits until it feels that the danger has passed by. In the next place, even when the creature has been detected, to capture it is a difficult task, owing to the nature of the soil, which is apt to fall in when disturbed, and so to fill up the burrow and hide the inhabitant. The best plan for catching these creatures without injuring them is to introduce into the burrowa flexible grass-stalk, or something of the same nature, and to pass it gently down to ine very bottom of the tunnel in which the larva is lying. By carefully digging around the grass-stalk, the hidden grub can be secured. More care is required in this operation than might at first seem to be needful. The trowel or ‘digger’ should be put into the ground at least eight inches from the mouth of the burrow, and quite a large hole should be dug; as, if it be made too small, the point of the trowel is apt to crush the soft- bodied grub. Then, the grass-stalk must be carefully held -upright in the left hand, while the right hand is employed in digging; as, if unsupported, it is sure to fall out of the burrow as soon as the operator has dug within some two or three inches of the bottom of the hole, and then all the labour is lost. These larve may be found about May, and a second brood about August and the beginning of September. Many insects are very voracious in the larval condition, but become comparatively indifferent to food when they reach their perfect state. This, however, is not the case with the Tiger 6 THE LEBIAD. 19 Beetles, which only cease from eating during the short period of their pupal existence. In localities which these insects prefer, such as sand-banks which are totally sheltered from the wind, they may be seen busily engaged in chasing their prey. They are more active in the air than any other Beetle, having a way of spreading and foiding their beautiful wings so instan- -taneously that they look more like flies than Beetles. Most Beetles are very deliberate in preparing for flight and alighting after it, but the Tiger Beetles are quite exceptional in this respect, and dash about as easily as if their wings had not to be unfolded and repacked under the elytra. OnE exception to the general rule is found in the Cicindela germanica. This is the smallest of the British Cicindélide, being only five lines in length. Its body is rather cylindrical, and its eolour is much like that of the first-mentioned species, the elytra being of a similar dull, but rich green. The elytra have a cream-white spot on the shoulder, one near the middle of the lateral margin, and a crescent-shaped mark at the apex. It is blue-green below, glossed with a copper tinge. Contrary to the habits of the other Tiger Beetles, this species prefers wet to dry places, and has a liking for brackish marshes. It does not take to wing as do its congeners, but it is a very rapid runner, and traverses the wet surface of the ground with great speed. It appears to be one of those species which are at once intermittent and local in their appearance ; being found plentifully in one season in some favoured locality, and then disappearing for years. Black Gang Chine, in the Isle of Wight, is said to be the place most frequented by this insect. ANOTHER species, Cicindela maritima, is shown on Plate I. Fig. 2. It is purplish or coppery-chocolate above, the coppery hue being plainest along the suture; and the elytra have a cream-white mark at the base and apex, and a wavy band in the middle. It prefers the sand of the sea-shore, and may be found on many of our sandy coasts. We now come to the next family of British Beetles, the Lebiade. All the Beetles of this family may be known by the cZ 20 INSECTS AT HOME. appearance of the elytra, which do not extend to the end of the abdomen, and are abruptly squared, looking almost as if they had been cut off. If their first pair of legs be examined, the tibize will be seen notched on the inner side. They are all rather small Beetles, and some are very prettily coloured. They are tolerably active when they choose to take the trouble of moving; but they are much given to hiding themselves in- all kinds of crevices, so that some trouble is requisite in order to procure them. The young entomologist must always bear in mind that the most unpromising localities will often prove to be singularly. rich in insects, and that Beetles especially may be found in any spot where there is a crack or a hole. Large stones are nearly sure to shelter a Beetle or two beneath them ; moss is generally full of them ; and a heap of decaying grass or leaves is a hotbed which seems as well fitted to produce Beetles as to force plants. The loose bark of trees always has Beetles under it; and small Beetles creep into the burrows which larger Beetles have made in the decaying wood of the tree. When a quantity of long moss is to be seen, it is a good plan to fill a bag with it—a paper bag will do in lieu of anything better— and to bring it home, when it can be carefully examined by shaking it bit by bit over a large sheet of white paper. Grass- tufts can be treated in a similar manner, and mostly with great success. Lumps of dry earth can also be brought home, where they can be broken up and leisurely searched. Tue typical example of this family is shown on Plate II. Fig. 1. Its name is Lebia crux-minor. The insects belonging to this genus have hard and somewhat flattened bodies, and the antenne rather thickened towards the tip. The second joint is the shortest, and the third the longest, the others being of about equal length. One of the maxillary palpi is drawn on Woodcut II. Fig. f. The colour of this species is very decided. The head is black and ‘ punctated,’ i.e. covered with minute holes or pune- tures, and the thorax and elytra are rust-red, the latter being marked with a bold black cross. No one can mistake this pretty Beetle who has once seen it; but, unfortunately, to see it except in cabinets is a very rare event, and any entomologis’ VARIETY OF COLOUR AND SIZE. 21 who is fortunate enough to capture it, is sure to publish the fact. It is probably one of the intermittent and local species, as it has been taken in some numbers near the Devil’s Dyke, at Brighton. The length of the Beetle is about a quarter of an inch. ANOTHER species of this genus is drawn on Woodcut II. Fig. 2. This is called Lebia cyanocephala. The latter of these two words signifies blue-headed, and is given to the insect because its head, instead ot being black, like that of the preceding species, is bluish-green. The thorax is rust-red, and is much punctated, and has a definite though slight groove along itscentre. The colour of the elytra is somewhat variable, but is generally greenish-blue, in some specimens being almost entirely green, and in others almost entirely blue. It is bluish- green beneath. The size of the insect is as variable as its colour, some specimens being quite a third larger than others. Its average length is a quarter of an inch, or rather less. It is nota common Beetle, but may be found upon the broom in the summer time. THERE is a common species of this beautiful genus also to be procured from the broom. This is Lebia chlorocephala. It much resembles the preceding insect in colour, but may be known by,the greater depth of the punctures on the head, and the longer and narrower thorax, with the posterior angles more pointed. Like the preceding insect, it is exceedingly variable both in colour and size. Mr. Stephens states that the specimens which he took from the broom in Epping Forest were scarcely half as large as those taken on the same tree in Darenth Wood, and that in the Epping Beetles the prevailing colour was blue, while in the Darenth specimens it was green. Tue genus Dromius comes next on our list. There are nine species of Dromius, all of them small and rather pretty insects. Although they are almost invariably found under the bark of trees, they must not be confounded with those little Beetles which devour the bark or bore into the woed. On the con- trary, such insects constitute the food of the Dromii, so that 22 INSECTS AT HOME, the latter ought to be encouraged and protected as far as pos- sible. Their bodies are long and flattish, so as to enable them to run about under the bark in search of prey. The maxilla of a Dromius is shown on Woodcut II. Fig. a. On the same illustration, at Fig. 1, is shown a Beetle which may be accepted as the type of the genus. Its name is Dro- mius quadrimaculatus, the latter name being given to it on account of the four white marks upon the elytra. The head cf this species is black, and the thorax is rust-red. The elytra are brown, and each of them has two white spots, as shown in the illustration. The length of the Beetle is designated by the line drawn by its side. It can be taken in various localities. Throughout the year it can mostly be found by removing the dead bark of trees, but in winter it can sometimes be found under stones and in heaps of decaying leaves. The word Dromius is of Greek origin, signifying a runner, and is given to the members of this genus in consequence of their activity. Tue members of the genus Tarus can be known by examining the structure of their mouths, and especially by looking at the labial palpi, which have the iast joint very large, and shaped like an axe-head. This shape is technically termed by ento- mologists ‘ securiform,’ from the Latin word secwris, an axe or ~ hatchet. The figure d, of Woodcut No. II., represents the labial palpi of a Tarus, and will at once explain \the shape which the word securiform expresses. On the same Woodcut, at Fig. 3, is drawn the owner of the securiform palpi in question, Tarus axillaris. Three members of this genus are known to inhabit England. They are little Beetles, long bodied, and very flat, so as to enable them to creep into small crevices. They are sombre in hue, and not very easily distinguished from each other. Indeed, even expert entomologists have been perplexed about these Beetles, and some confusion has, in consequence, arisen respect- ing their nomenclature. The present species is rather less than the third of an inch in length. Its colour is pitchy-black, but the thorax, legs, and antenne are reddish, and the latter are downy at the tips. The elytra are very polished, and have bold striz covered with THE BOMBARDIER BEETLE. 23 punctures, and there is a dull orange mark on the shoulder, a line of the same hue. running along the lateral margin. None of the Tari are common, but they may be found nea the sea-coast, hidden under stones in damp and marshy places. Ir the reader will refer to Plate I. Fig. 5, he will see repre- sentea an event which frequently occurs in the insect world, and wnich, in spite of its frequency, never fails to attract at- tention and excite admiration. | There is a prettily-made, though soberly-coloured, little Beetle, called Brachinus explodens, the latter title being given to it in consequence of a most singular property which it possesses, and which is almost unique in the animal kingdom. It secretes a remarkable volatile fluid, which it has the power of retaining or expelling at will. When alarmed, it throws out a small quantity of this fluid, which immediately vola- tilises with a slight explosion when it comes in contact with the atmosphere, and looks very much like the fire of miniature artillery. In consequence of this phenomenon, the insect which produces it is popularly called the BomBarprer Bretie. This curious property is used in defence. The Beetle, being a small and comparatively feeble one, is liable to be attacked by the larger Geodephaga, especially by those belonging to the genus Carabus. The lesser insect could have no chance of escape but for its curious weapons of defence. When the Carabus chases the Brachinus, the latter waits until the former has nearly reached its prey, and then fires a gun, so to speak, in its face. The effect on the Carabus is ludicrous. The insect seems quite scared at such a repulse, stops, backs away from the tiny blue cloud, and allows its intended prey to reach a place of safety. The illustration represents this scene. The pursuing Beetle, Carabus monilis, is chasing the Bombardier, and has very nearly captured it, but is stopped by a discharge of artillery, under cover of which the Bombardier will make off. Mean- while, the Carabus, exchanging its rapid advance for a retreat nearly as rapid, throws its antennze backwards—a movement which is analogous to that of a dog when it drops its tail be- tween its legs—and, before it can recover itself, its intended prey has made good its escape. 24 INSECTS AT HOME. The Brachini may be identified by the very convex body, and their palpi without the securiform terminal joint. The Bombardier Beetle is reddish-yellow, with dull deep-blue elytra. It is, however, a variable species, as are all, or nearly all, of those in which green or blue is the prevailing colour, and, though most specimens are blue, or blue-black, some are deep blackish-green. It also varies greatly in size, some specimens being not a quarter of an inch in length, and others more than the third of an inch long. These Beetles love wet situations, especially when the water is brackish, and hide under stones and in crevices, so that they are seldom seen except by insect hunters. The banks of tidal rivers are good hunting grounds for the searchers after Brachini, such as the Thames, from Erith, or even Woolwich, to its mouth. They are found in greatest numbers below Graves- end, and ten or twelve may sometimes be seen under a single stone, firing off their artillery when deprived of their shelter. The volatile fluid which produces such curious effects is secreted in a little sac just within the end of the abdomen. It is not only capable of repelling the larger Beetles by its explosion and cloud of blue vapour, but is potent enough to discolour the human skin when discharged against it, as many have found who have captured Bombardier Beetles by hand. Should it get within the eyelids, the pain and irritation pro- duced resemble those which would be caused by a correspond- ing amount of the strongest vinegar. The whole of the contents are not ejected at one discharge, but there is sufficient to produce a series of explosions, each perceptibly fainter than its predecessor. Even after the death of the Beetle, the explosions may be produced by pressing the abdomen between the finger and thumb. Even in our small British species the phenomenon is very surprising, but there are much larger species in hotter countries, which produce much louder explosions, accompanied with quite a cloud of vapour. Two British species of Brachinus are known to ento- mologists. We come now to another family of Geodephaga, of which we can but take one example. The Scaritide, like the pre- ceding family, are seldom seen in the open air, but, instead of DIGGING FOR BEETLES. 25 creeping into clefts already existing, they make tunnels for themselves. Tunnelling Beetles are almost invariably cylindric in shape, and this is the case with the Scaritide. The thorax of these Beetles is rather peculiarly shaped, being separated from the abdomen by a sort of neck, or ‘ pedunculated, if we use the scientific term. The tibie of the first pair of legs, which are the tools chiefly used in burrowing, are very hard, very strong, and boldly toothed, and the antenne are short, and have scarcely any distinction between the joints. One of the best examples of the Scaritidze is shown on Wood- eut II. Fig. 4, and is an insect called Clivina fossor. The length of this Beetle is rather more than a quarter of an inch. Its colour is» exceedingly variable, ranging from pitchy-black to chestnut, brown, or even brick-red. This variation in colour depends chiefly upon the exposure to the air, the oldest spect- mens being the darkest. This graduel darkening by exposure to light is very frequent among insects; and a too familiar example may be found in the common cockroach, which is often seen almost white, darkening gradually until it assumes its well-known red-brown hue. There are only two British examples of this genus. Usually, the Clivina is found under stones and in heaps of decaying vegetable matter, but I have taken great numbers out of a large rotten log, which was seen to be full of their burrows as soon as the bark was removed. I took out of the same log both the larve and pupz of the same Beetle, having nothing to do but to break up the soft and rotten wood with a powerful digger, previously laying a newspaper below the log. The insects fell out in numbers without being injured, and could be taken in any number. The instrument which is here mentioned was not of the usual form, but was made to order, and a very useful article it was. It was shaped something like a mattock, the blade being trowel-shaped and slightly curved, and a broad hammer taking the place of the prongs. The blade was very strong and sharp- edged, and on occasion could serve as an axe, while the hammer end was useful for breaking up the hardened earth in which many Beetles reside. It was particularly useful during hard frosts, because the Beetles are then in their winter quarters, and cannot be got at without some such weapon. If I were 26 INSECTS AT HOME. to have another digger made, I should have the handle pro- longed into a sort of crow-bar with a rather sharp edge, so as to be able to use it as chisel and lever united. When the insects are captured, the next business is to know how to deal with them. There is not the least difficulty with soft-bodied moths or butterflies, as they can be easily killed when caught; but the hard-bodied Beetles are not so easily deprived of life, and a great number of them will fight if placed in the same vessel, and eat, or at least mutilate, each other. There is nothing better for such insects, or rather for their capturer, than the ‘laurel-bottle.’ This is very easily made. ‘Take a wide-mouthed bottle, and fit a cork very firmly into it. Bore a hole through the cork, and insert in the hole a swan--quill or short metal tube about two inches long, so that it may project at least’ half an inch through the cork into the bottle. The upper end should be stopped with a cork, and it will be better to cut the cork so long that it can be removed by holding it between the teeth. I always cut the upper part of the tube slopingly, so that a very small Beetle can be scooped up with it. For many Beetles nothing more is requisite, except to put a piece of crumpled rag at tle bottom,so as to give them a foothold, but for the fiercer and voracious Adephaga an additional precau- tion is required, and they must be killed as soon as they are put into the bottle, or an undisfigured specimen will never be obtained. If a bottle can be obtained without any neck, the following is the neatest way of making a laurel-bottle :—Cut a flat cork that fits rather tightly in the bottle, but not too tightly to be pushed up and down. Take out a portion of its middle, and insert a piece of fine wire gauze. It will be better to pass a string through each side of the ‘ plug,’ as we will call this cork, and knot them underneath, so that when the plug is to be withdrawn it can be pulled up by the strings. Next, procure a handful of the young buds and leaves of laurel, put them into the bottle, and crush them into a paste with the handle of a knife or some such instrument. Now insert the plug, press it down upon the crushed leaves, put in the cork, and the ‘laurel-bottle’ is complete. If the bottle should have a neck, make a small gauze bag, tie up the THE LAUREL-BOTTLE AND THE SWEEP-NET. 27 erushed laurel in it, and put it into the bottle. In either case, the bottle must be kept firmly corked, or the vapour wil escupe. The use of the bottle will be shown as soon as it is employed. Let a Beetle, however large, fierce, or voracious, be put into it, and its fate is at once sealed. It begins to kick and struggle, as if it knew its danger; but in less than a second the strug- eling is evidently over, and the insect turns on its back, with its legs quivering in the poisoned air. The fact is, the laurel contains a large amount of prussic acid, and the interior of the bottle is charged with its vapour. Now, as has already been mentioned, the breathing apparatus of an insect pervades the whole of the body, even to the end of the limbs ; and when the poisonous vapour is inhaled, it penetrates simultaneously the entire system, and causes almost instantaneous death. It will be as well for the beginner to use the laurel-bottle for all Beetles, as it does not damage them, and he need not trouble himself to distinguish the voracious from the harmless species. There is only one drawback to the laurel-bottle, and this is more apparent than real. It stiffens the limbs, so that the insects cannot be ‘set’ properly, and the legs will rather break than bend. However, this difficulty is overcome in a very simple way—namely, by leaving them in the bottle for a few days, when the rigid limbs will become relaxed and as flexible as they were during life. Some care, however, is required, as, if they are left too long in the bottle, the process of softening extends too far, and the limbs are apt to fall off altogether. Very few instruments are required for the capture of Beetles besides the digger which has already been described. Two nets are almost indispensable, one made of stout net, and the other of brown holland or the strongest linen. The former should be about seven inches in diameter, and is used for fishing Water Beetles and their larva out of ponds, ditches, and streams. The latter, which is called from its use the sweep-net, re- quires to be made with some care, as it meets with very rough usage, and, unless properly made, will soon be worn out.” The depth should be at least twice its diameter. The framework of the net is simply a ring or hoop about nine inches in diameter, made of iron or brass about as thick 28 INSECTS AT HOME. as an ordinary quill. If it be of lighter material, it will not endure the rough work for which it is made. The ring is covered loosely with the strongest tape, and to the tape is sewn the net itself, which is nothing more than a bag of holland or linen. The best sweep-nets have a number of small rings soldered on the inside of the hoop. A stout wire is run through the rings, and the net is made fast to the wire. By this plan the net will outlast twenty nets made in the ordinary way. The angles at the bottom of the net should be carefully rounded off. Now for the mode of using it. The simplest plan is to attach to the ring a strong screw which fits into a ferrule at the end of a stout walking-stick. The entomologist can, there- fore, go about his task without betraying any signs of his occupation. The sweep-net and water-net, folded round their rings, are placed in one pocket, the laurel-bottle is in another ; the digger is hidden under the skirts of the coat, and a pair of curved forceps is in the waistcoat pocket. When a promising sweeping-place is found, such as a hedge- row, some long grass, fern or heather, a quantity of nettles, a turnip field, or any such locality, the sweep-net is screwed to the walking-stick, the laurel-bottle hung by a string to a button, and all is ready. The net is then swept at random backwards and forwards among the herbage, the stroke always having an upward direction. This, with a little practice, can be done so rapidly as scarcely to impede the walk. It is better, how~ ever, only to sweep one kind of plant at a time, so as to-be sure of the particular herb or vegetable frequented by each species. After a time, comes the examination of the net. Lay it flat on the ground, doubling it over, so that the pressure of the hoop prevents the inmates from escaping. Now, draw it through the hoop very slowly, taking care that none of the more active Beetles make their escape, especially those which hop and fly ; seize the insects as they make their appearance, and drop them into the laurel-bottle, always replacing the cork. Most Beetles —and, in fact, nearly all that are taken in the sweep-net—will pass through the tube; but the large Ground Beetles, some of the Water Beetles and chafers, and one or two others, require to have the large cork removed. MODE OF SETTING BEETLES. 29 On returning home, the entomologist should take out the cork from the laurel-bottle, and empty the insects into some boiling water, as some of the species have the strongest objec- tion to die, and, after they have been apparently killed, have a habit of reviving in a manner that is rather startling to the young entomologist. It is no uncommon thing for an in- sect-hunter to capture a number of Beetles, set them, put them away in the ‘setting-box,’ and then, after a week or so, to find three or four of them kicking about and doing their best to escape. Some of the Geodephaga have been known to drag the pin from the board, and, though still impaled, to devour their fellow sufferers. Ordinary Beetles can be taken by hand, but for the very small species the forceps is used. This instrument should be of good length. The regular dealers offer for sale a brass forceps about two inches in length. This is nearly useless. Get the forceps of steel, at least four inches long, and made with a curve. The curved forceps is just as useful as the straight instrument for picking up a Beetle from the ground, while it can be inserted into crevices which the straight forceps could not enter. ‘Setting’ Beetles is not a difficult matter. For moderately- sized Beetles the following plan answers perfectly. Take a fine pin, such as are sold for the purpose, and pass it through the disc of the right elytron, and so fix the Beetle on a board. Now draw out its legs, and place them in their natural position, fixing them, if required, with pins and little bits of card-board. Treat the antenne and palpi in the same way, and nothing more is needed. Very small Beetles should be fixed on white card-board with coaguline. Ifthe cement be well thinned, there will be plenty of time to fix the legs and antennz before it sets. Only one Beetle should be set on one piece of card. In all cases, if the Beetle have wings, and several specimens can be procured, one of them should be set with the wings expanded as in flight ; and, when card is used, one specimen should be laid on its back, so that the structure of the mouth can be examined. Should a more detailed examination be required, nothing is easier than to damp the card-board, remove the insect, and replace it after its structure has been investigated. 30 INSECTS AT HOME. For examining the details of a Beetle, especially if it be a small one, a pocket lens is required. These instruments are made with either two or three glasses, and are small enough to be suspended to the watch-chain by a ring. In order to examine a Beetle with ease, the pin should be stuck into a cork cemented on a flat piece of lead, so that it cannot be knocked over. My own instrument is made of a champagne cork, cut into a cylindrical form and rounded on the top. I pre- fer the champagne cork for two reasons—the first being that it is of an uniform and close texture, without the holes and hard spots which are found in ordinary corks, and the second being that it has not been pierced with the corkscrew. Onty one other English genus belongs to this family, namely, the genus Dyschirius. All its members are very brilliant, very active, and very small, the largest being barely one-sixth of an inch in length. Small as they are, they are as ferocious as the Tiger Beetles, and are most persevering in their chase of prey, which mostly consists of Beetles belonging to the Brachelytra. There are several Beetles belonging to the genus Bledius or Hesperophilus, which inhabit the sandy shores, and live in small burrows which they make in the sand just above high- water mark. On these little insects the Dyschirii feed, chasing them through their tunnels just as weasels chase rats. All these Beetles are cylindrical, and their surface has a-sort of brassy polish. The mandibles are stout, very sharp, and toothed at the base. The antenne are slender, with the second joint the longest, and the thorax is globular. CHAPTER’ Lt. GHEODEPHAGA—continued. Wer now coine to the important family of the Carabidex, to which belong some of the largest and most powerful of the Geodephaga. The Carabide are in many points exactly like the Cicindelide, and if isolated parts of the mouth were taken to an entomologist, he would have some difficulty in knowing to which family they belonged. But, whereas the Cicindelidz have a notch on the inner side of the front gees these limbs are without the notch in the Carabide. The typical genus is well represented in this country, and its members are familiar to us by the title of Ground Beetles or Garden Beetles. They are the largest of the family, some of them being an inch in length, and strongly though elegantly shaped. They are very active, as far as their legs go, but they have no wings, these members being only found in a rudi- mentary state under the hard and shining elytra, which in most of the species are soldered together and cannot be opened. In one species, however, Carabus granulatus, the elytra are capable of motion, and the wings are more developed than is generally the case. They are, however, much too small to be used for flight. The mandibles have a small tooth in the middle, and the labial palpi have the last joint securiform, or axe-shaped. The thorax is somewhat heart-shaped, and has the posterior angles boldly marked. In the male the tarsi of the first pair of legs are broader than in the female. Thirteen British species of Carabus are known, one of which is represented on Plate I. Fig. b, in the act of chasing the Brachinus. It is the Carabus monilis, a common and very handsome insect. It is exceedingly variable in colour, and slightly so in marking, but may be described as follows:—The head is black, with bronze or green reflections, wrinkled in front, 32 INSECTS AT HOME. and there is a deep hollow on each side just between the an- terme. The thorax is wrinkled at the hinder angles and deeply notched behind, and its colour is deep copper. The elytra are metallic green or violet, and sometimes entirely green. Each elytron is marked with three rows of raised striz, broken regularly at intervals, or ‘interrupted,’ to use the scientific term, and between them are three ridges which are not broken. The line along the suture is black, and the under side of the insect is dull black. This Beetle is common in gardens, and, like the rest of its kin, ought to be encouraged and protected, as it feeds almost entirely on the smaller insects, and never meddles with the vegetables. One of the species, Carabus auratus, which is plentiful in France, though very scarce in this country, is most useful to the farmer, as it watches for the female cockchafers as they descend to deposit their eggs in the ground, and then kills and eats them, thus doing more good than if it fed on the destructive grub itself. It can be found in the daytime by lifting stones, flower-pots. logs of wood, dead leaves, or similar objects that have been lying in one place for some little time. Care must be taken in handling it, as all the Carabi have an unpleasant habit of pouring from their mouths a blackish fluid which stains the fingers, and is of a very disagreeable character. It is said that the insect can project this fluid to some distance ; but I have never seen this done, though I have caught great numbers of Carabi, and given them every provocation to make use of this weapon, which is analogous to the explosion of the Brachinus. All the Carabide are beautiful insects, and it is difficult to select any one that is pre-eminent beyond its fellows. Per- sonally, I think that Carabus cancellatus carries off the palm, though it is not so large as several of its congeners. Its shape is peculiarly elegant, and its colour is greenish brass, or coppery, sometimes deepening into black. On each of the elytra are three chain-like marks composed of oblong tubercles placed end to end, and between each of them is a single bold ridge. These marks are similar in character to those of the preceding insect, but they are very much larger and bolder, and can easily be distinguished without the aid of a lens. There are the rudiments of wings to be seen under the elytra. -In af 4 Viet yen PLATE II. GROUND BEETLES, . Lebia crux-minor. . Calosoma inquisitor . Carabus intricatus. . Cychrus rostratus. . Calosoma, larva in nest of Social caterpillar. oO oO ® COW . Carabus, larva. PLANTs :— Trunk and branch of Oak (Quercus Robur). Above Wood Anemone (Anemone nemorosa). Across Cente Cowslip (Primula veris), In Middle. G | Re CARABUS 33 the spring time this insect inay pe taxen im decaying willow- trees. Another species of this genus, Caravus intricatus, may he seen on Plate II. Fig. 2, where it is represented as ascending the trunk of an oak-tree in search of prey. If any of my readers should happen to see the insect itself, he will be the envy of all brother entomologists, inasmuch as it is not only a singularly handsome but a very scarce insect. It is the largest British Carabus yet known, and is finely marked and coloured. The head is black, with a violet gloss, and has a deep impres- sion on either side. The thorax is of the deepest violet or green, becoming black on the margin, and is wrinkled over its entire surface. The elytra are very deep and shining-violet, and on each elytron there are three rows of elevated tubercles of an olive-green, the remainder of the surface being wrinkled. The under surface of the body is biack, glossed with violet. At Fig. 6, in the left-hand lower corner of the same plate, is seen the larva of a Carabus. These larve are, like the perfect insects, carnivorous. They are armed with powerful jaws, having a strong tooth near the base. The antenne and maxillary palpi have each four joints, and there are six ocelli, or simple eyes, on each side. At the end of the tail are two horny spines, each armed with a, sort of spur. The last species which will be described is the Oarabui violaceus, one of the commorest ard largest of the species. It sometimes exceeds an inch in length. Its colour is rather remarkable. At first sight it appears to be a black insect, bat ° a more careful examination shows that the supposed black is in reality the deepest violet, which on the margins of the elytra and thorax becomes of a rich burnished golden-violet, like as of polished metal. "he whole of the upper surface is granulated, the elytra more deeply than the thorax, along the centre of which there is a slightly elevated line. Below, it is black, with a slight green or blue reflection. Altogether there are thirteen British Carabi. Thesé Beetles afford good practice in setting. They are large enough to bear handling, and yet small enough to require care. Their legs are long, and look well when set out, and the parts of the mouth are sufficiently large to show whetner the operator has been careful about his work. Their omy D 34 INSECTS AT HOME. drawback is the lack of wings, but it is more than compensated by the other advantages. These Beetles, by the way, are very tenacious of life, and, though they can be at least rendered insensible and harmless by the laurel-bottle, it will be as well to dip them into boiling water before passing the pin through them, so as to avoid the sight of an impaled Beetle trying to release itself, or walking about the cabinet drawer with a pin through its body. I have always had a great liking for these Beetles, from the time when I was accustomed to harness them into fairy chariots, to that in which I first learned from them the wonders of an insect’s organisation, and traced in them the early radi- ments of those structures which find their fullest development in man. Next on our list comes the genus Notiophilus, which, being translated, signifies wet-lover, and is a very appropriate title All these Beetles are very small, none of them exceeding » quarter of an inch in length. They may be found on the banks of ponds and streams, running over the wet soil with great activity in search of prey. Im consequence of thei: fondness for water they were for a long time classed among the Hydradephaga, or the voracious Beetles of the water, but have now been placed in their right position among the Carabide. On Woodcut No. IL. Fig. 5, is a magnified figure of a common species of this genus, called Notiophilus biguttatus. It is a very small Beetle, sometimes only one-sixth of an inch in length, and seldom, if ever, exceeding a quarter of an inch. It is a pretty little creature, with a highly polished surface, as if made of bronze in which the copper predominated. Five species of this genus are known to inhabit England, and they may be found hidden under stones or at the roots of trees in damp places. Willow-trees on the borders of streams are good localities for these pretty little Beetles. They do not, however, confine themselves to wet places, although they prefer such places as a residence. They may be seen running about in the hottest weather over places a mile at least from water. The maxillary palpi of this genus have the last jcint rather egg-shaned, and sharply cut off at ite end, as may be seen by referenee to Woodcut II. Fig. e, which represents the left labial MARITIME BEETLES. 35 palpus of this insect. The antenne are slender, and rather thicker at the tip than at the base. The head has a deep furrow between the eyes, and the elytra are long and flattened. ANoTHER genus now comes before us, our example of which is Nebria brevicollis, a figure of which is given on Woodcut III. Fig. 1. These are larger insects than those of the preceding 1. Nebria brevicollis. 2. Pogonus luridipennis. 3. Pristonychus terricola. 4. Sphodrus leucopthalmus. 5. Calathus cisteléides. a. Nebria, labial palpi. b. Nebria, maxillary palpus. c. Pogonus, labial palpi. d, Pogonus, maxillary palpus. genus, their length exceeding half an inch, and sometimes reach- ing three-quarters of an inch. In these insects the antenne are long and slender, and the mentum is divided into three distinct lobes, the central lobe being cleft, as it were, into two. The thorax is heart-shaped and abruptly cut off both in front and behind, the basal angle being straight. The wings are well de- veloped. Most of these Beetles belong to the maritime insects. D2 36 INSECTS AT HOME. The present species is called by the name brevicollis, in con- sequence of its short neck. The head, thorax, and elytra are black, and the antenne, palpi, tibiz, and tarsi are dull, pitchy- red. The elytra have their surface marked with bold striz, which are thickly punctured, and have several large pits on the third stria from the suture. Although plentiful enough when insect-hunters know where to look for them, the Nebrias are not often found, owing to their habit of concealing them- selves in the crevices of sea-side rocks, so that it is necessary to break open the rocks in order to dislodge the Beetles. The digger mentioned on page 25 will be found very useful for this purpose. The Beetles prefer the sandstone rocks to the chalk cliffs for their residence. The length of this species is one-third of aninch. The peculiarly-formed labial palpi of this genus can be seen by reference to Woodcut No. II. Fig. a, and the maxillary palpi at Fig. 6. Four species of Nebria are known to inhabit England. Ir the reader will refer to Plate II. Fig. 2, he will see repre- sented an episode in insect life which is not common in Eng- land, where the insect is scarce, though sufficiently so on the Continent, where it is plentiful. It seems very strange that so narrow a strip of sea should separate so many insects from us, especially as vessels are continually passing backwards and forwards. It isa fact, however, that many of our very rarest insects are quite common on the opposite coasts of France, where they live under exactly similar conditions as those of our own island. I cannot but think that, in cases where the insect is, as in the present instance, an extremely useful one, any entomologist would be doing a patriotic act by bringing over a number of them and turning them out to get their living in England. There is no difficulty in distinguishing the genus Calosoma from Carabus. The body and thorax are much more globose and rounded, the third joint of the antennz is flattened, and well-developed wings are seen beneath the elytra. This handsome Beetle, called scientifically Calosoma syco- phanta, ranks among our rarest British insects, but absclutely swarms in many parts of the Continent, being so plentiful in fir-woods, that if an entomologist go out at night, after the LARVA OF THE CALOSOMA. 37 manner of his kind, with sugar and a lantern, the trunks of the trees appear to be quite studded with gems, which are the shining green bodies of the Calosoma. The name Calosoma is formed from two Greek words, signi- fying beautiful body, and is more appropriate than the gene- rality of insect names. The head and thorax are very deep violet, almost amounting to black, the violet being most brilliant on the margins of the thorax, which are flattened and slightly turned up like the brim of a hat. The whole surface of the thorax is finely granulated, and there is a faint but distinct groove along its centre. The elytra are singularly beautiful. They are gold-green ‘shot’ with blue, the hues shifting, like those of a pigeon’s neck, with every change of light. They are deeply and regularly striated, and on each elytron there are three rows of rather deep punctures, placed at some distance apart. Counting from the suture, the punctures are placed on the fourth, eighth, and twelfth striz. Although they are well marked, they cannot be properly seen without a magnifying glass, though when viewed with a side-light they look like three rows of tiny glittering points. Beneath, the insect is black, glossed with bronze. Its length is rather more than an inch. It is impossible to calculate the benefit which this beautiful insect confers upon the countries in which it lives, and it is not too much to say that but for the Calosoma the fir-tree would he extinct in many of those places from which we derive our chief stores of timber. Both in the perfect and larval condi- tions it is carnivorous, feeding upon certain destructive cater- pillars belonging to the Bombycidze, among which those of the Processionary Moth (Cnethocumpa processionea) and the Gipsy Moth (Liparis dispar) are the most conspicuous. It does not, however, feed only on the caterpillars of moths, but also devours the larve of the Pine Saw Fly (Lophyrus pint), thus selecting, with a curious instinct, the very creatures which do most harm to the forest. In the plate the insect is represented as looking down from the branch to whick *+ has climbed in search of the Brown-tail Moth’s nest. Although it eats many of these larve after it has attained the perfect form, it commits the greatest ravages while itself in the larval condition. In this state it is ugly as itis beautiful when it becomes a Beetle. It is a black, soft-bodied grub, 38 INSECTS AT HOME. something like that of the Carabus, flattened and scaly on the upper surface of each segment and the head. It has two large, sharp, curved, and powerful mandibles, from which no cater- pillar has a chance of escape, and there are two horny spines at the end of the tail. Its length, when full-grown, is about an inch and a half. The voracity of this larva is amazing. It will eat several caterpillars, and even pupz, daily, and gorges itself to such an extent that the soft body becomes quite distended like that of a full-fed leech, and the creature is quite incapable of moving. In this condition it often falls a victim to its own voracity, and that in rather a curious manner. It has been mentioned that, among other insects, the Processionary Moth forms a large proportion of its food. Now the caterpillars of this moth are social in their habits, and spin large webs, in which they live together. Into these nests the larva of the Calosoma is sure to creep, and sometimes as many as five or six have been found in the same web, feeding on the inmates. Sometimes it happens that a Calosoma grub, hungry and wandering in search of food, dis- covers a nest of Processionary caterpillars, and straightway makes its entrance. Being very hungry, it seizes the first creature to which it comes, and sometimes catches its gorged and help- less relative, which it devours without the least compunction. I have already mentioned that the Calosoma is in all proba- bility the means of preserving the supply of fir-wood. In some years, as often happens with destructive insects, sundry pine- feeding caterpillars absolutely swarm in the forest, the insect armies being so vast that anyone walking through the forest hears the sound of their busy jaws on every side as they devour the leaves. With any tree such a visitation would be a mis- fortune, but with the pine-trees it is death. Ordinary trees, if stripped of their leaves, will put forth a fresh set of foliage _ in the succeeding year, and suffer little except being thrown back in their growth; but a pine-tree, when deprived of its leaves, has no such power, and always dies. The reader will, therefore, see how invaluable are the services rendered to man by this insect, which keeps down the numbers of the obnoxious caterpillars, and saves whole forests from destruction. Trees that have been perishing through the attacks of cater-~ pillars have been saved by the Calosoma. Some years ago, DISCOVERY OF THE CALOSOMA. 39 M. Boisgérard, finding that some trees were being ravaged by the caterpillars of the Gipsy Moth, placed upon the trees several females of this Beetle, and simply left them. Next year, the caterpillars appeared as usual, but in their nests were the larve of the Calosoma, and in two or three years the de- structive caterpillars were completely cleared off. I should not be at all surprised if the insect could be em- ployed in England for the same purpose. It would have plenty of food among the caterpillar armies that occasionally devas- tate certain localities; and, if at first it could escape the fingers of collectors, it might have a chance of becoming natu- ralised here, and rendering tc England the services which at present it performs on the Continent. It is noteworthy that the first recorded British specimen of this splendid insect was captured at Aldborough, by Crabbe, the poet. ANOTHER species of the same genus is found in England, and is less rare than the preceding insect. This is Calosoma in- quisitor. It is about three-quarters’ of an inch in length, and, though a beautiful Beetle, is not so handsome as its larger relative. A fine specimen now before me was captured by myself in Bagley Wood, in the year 1846, at which time that happy hunting ground of entomologists was open to all who went there for entomological purposes, and did not disturb the game. It had but lately emerged from the pupal state, and I found it under a stone, where it was hiding itself until its soft elytra had gained their hardness. It was so soft, indeed, that I was almost afraid to handle it, lest its shape should be injured. However, it soon became hard and glossy, and, never having been exposed to injury, is a singularly perfect specimen. I find in the MSS. of the late Mr. Hope, which he kindly lent me, that, in the summer of 1820, several were beaten out of the foliage of oaks, and others dug from beneath the roots of the same trees in the early spring. The colour of this Beetle is very beautiful. The head and thorax are very deep bronze-green, and finely granulated, the latter having a very deep pit on either side near the hinder angle, and its edge being very bright blue-green. The elytra are of a similar colour, and covered with striz. Each stria is broken at short intervals with transverse lines, perceptible even 40 INSECTS AT HOME, to the naked eye, and the edges are bright blue-green, like those of the thorax. There are three rows of impressions on the elytra, similar to those upon the preceding species, but not so shining. The under surface of this handsome insect is dull blue-green, and the legs and antenne are black. Next in order comes the plainly-coloured, but elegantly- shaped insect called Cychrus rostratus, the only British ex- ample of the genus, a figure of which is given on Plate II. Fig. 4. The members of this genus can easily be distinguished by the long and slender head and thorax, by the very large elytra, which lap over the abdomen on either side, and by the pro- jecting mandibles. The last-mentioned peculiarity has earned for the insect the specific title of rostratus, or ‘ beaked,’ and, indeed, the mandibles, head, and thorax are so prolonged, that the insect might easily be mistaken for one of the larger weevils. To the unassisted eye this is a very dull-coloured insect, appearing to be uniform black-brown; but when viewed through a magnifying glass, the surface of the thorax is seen to be thickly wrinkled and punctured, and that of the elytra finely granulated, so that a soft and satiny gloss is imparted to the otherwise unattractive surface. Its length is, on an average, rather more than three-quarters of an inch. It is not reckoned among our common insects, probably on account of its habit of concealing itself in dark piaces, in which it may easily escape observation in consequence of its sombre colouring. I[t is to be found under heaps of leaves, stones, or wood-piles, such as are left by the fagot-makers. I have taken it in Wiltshire and about Oxford. This is one of the very few Coleoptera which can produce any sound, and the squeaking noise which is heard when the Beetle is handled, is thought to be produced by the friction of the elytra against the tip of the abdomen. The beautiful Musk Beetle produces a similar sound, which will be described when we come to that insect. The larva of the Cychrus is something like that of Carabus, but shorter and broader, and the projecting spines at the end of the body are very short and without spurs. The palpi of EXAMINING A BEETLE’S MOUTH. 41 this genus have the last joint very large and axe-shaped. Here may mention that nothing is easier than to examine the head and mouth of a Beetle, without doing the least injury to the specimen, even though it be hard and dry in the cabinet. Take the head between the points of the forceps, bend it gently backwards and forwards, and it will snap off. Now put it into warm water, and let it remain there until the parts are quite relaxed. Then stick a needle perpendicularly into a piece of cork, and run the eye portion into the ‘occipital’ hole, i.e. that at the junction of the head and thorax. With a fine needle, the parts of the mouth can be drawn out so as to be properly displayed, and, when they have been examined, the head can be replaced, and fixed, rather firmer than before, by a small drop of coaguline. This will be found a good plan when a Beetle has been badly set, and the parts of the mouth are not properly seen. Next in order comes the family of the Chleeniidz. In these Beetles the front tarsi of the males have either two or three joints much widened and squared, and very sponge-like below. On Woodcut III. Fig. 2, is given an example of this family, the insect being called Pogonus luridipennis. The members of this genus have the last joint of the palpi egg-shaped and rather elongated, with the tip blunt. The labial palpi are shown at Fig. ¢, and the maxillary palpi at Fig. d, the internal maxillary palpus being small and very slender. They are all rather brilliant and shining Beetles, the surface of their bodies having a metallic polish. They are small and maritime in their habits, and may generally be found on the southern coasts of England, hiding under the heaps of sea-weed which are flung by the waves upon the shore, The present species is about a quarter of an inch in length, or a little more, and is a pretty little Beetle. The head and thorax are shining green, with coppery reflections. The thorax has a longitudinal furrow along the centre, a triangular hollow in front, and a rather deep pit on the base at either side. The elytra are pale ochreous-yellow, clouded with brown in the middle, a peculiarity which has earned for the insect the spe- cific name of lwridipennis, or ‘ pale-winged.’ They are covered with greenish striz, and on the third stria are three rather 42 INSECTS AT’ HOME. deep impressions. Ihe body is greenish below, changing te rust-red at the tip. This species was first found on the coasts of Norfolk. Three British species of Pogonus are known. Anotuer Beetle belonging to this family is shown on Wood- eut III. Fig. 3. Its name is Pristonychus terricola. As may be seen by reference to the illustration, it is a very prettily- shaped insect, the curves of the outline harmonising in a way that would have delighted the soul of Hogarth, had he taken the trouble to look at Nature’s original of his celebrated ‘ line of beauty.’ Except in shape, it is not a very pleasing insect to the eye, the colour being black, with a violet gloss when examined in a proper light. The head is pitchy-black, and the thorax is sometimes of the same colour as the head, and sometimes blue- black, with a faint furrow in the centre, and a deep oblong pit on either side of the base. The elytra are of the same colour, and rather flattened, and covered with faint but regular strie, which are slightly punctured. Along the edges there is a series of roundish pits. This Beetle is plentiful in most parts of England, and may be found in cupboards, cellars, dark outhouses, and similar localities. There is only one British species. Ture is a Beetle, called Sphodrus leucopthalmus, which is closely allied to the preceding insect, and, indeed, is included in the same genus by many systematic entomologists. The reader should try to catch one of these Beetles—no very diffi- cult matter—and look at the very long third joint of the an- tenne, and the long and slender palpi. In the males, the trochanters of the hind pair of legs are developed into long spines. This Beetle is shown on Woodcut III. Fig. 4. The colour of the insect is pitchy-black, with a slight polish. The head is smooth, oblong, and has an impression on either side. The elytra are flattish, and faintly streaked, the streaks resolving themselves under the lens into rows of small punc- tures. Like the preceding species, it is common in outhouses, stables, and similar localities, and is said to feed upon the cockroazhes and other noisome and dark-loving insects. So, though she Sphodrus be not a handsome Beetle, it is worth SUN BEETLES. 43 protection, inasmuch as it is very far preferable to the cock- roach. This is the only British representative of the genus. On Woodcut II. Fig. 5, is represented the Beetle called Calathus cisteloides. The members of this genus can be known by the triangular head, the peculiarly-shaped thorax, and the elliptical elytra. The mandibles are toothed at the base. The colour of this insect is black, with a slight gloss in the male, and quite dull in the female. The triangular head has a pit on either side of the antenne, the thorax is wrinkled on the dise, and on either side of the base is a deep impression. The elytra are rather convex and covered with shallow striz, on which are faint punctures. The wings are undeveloped. This is a very common Beetle, and is one of the wet-lovers, being generally found along the bottoms of damp hedges, under heaps of stones, and similar localities. Eight British species of Calathus are acknowledged by entomologists. WE now come to the pretty little Beetles that are ranked under the generic title of Anchomenus. All these insects have an elongated thorax, the head egg-shaped, and the antenne with the third joint twice as long as the second. They are very active, and very brilliantly coloured, and, like most bright-coloured Beetles, love the sunshine, in which they dart about with exceeding rapidity. The popular name of Sun Beetle is given to these and other insects, in consequence of this peculiarity. They are sociable little creatures, and, when one is seen, others are tolerably sure to be close at hand. Some of them frequent wet and marshy places, and may gene- rally be found at the roots of willows that are planted at the water-side. One example of this interesting genus is Anchomenus dor- salis, which is shown, rather magnified, on Woodcut IV. Fig. 1. The real length of the insect can be known by reference to the line that is drawn on its right side. In this species the head and thorax are dark-green, and the flattened elytra are pale rust-red, diversified with a large spot of blue-black towards the apex, but not quite reaching the tip. They are striated, and the interstices between the striz are flat and smcoth, _ without any punctures, Beneath, it is shining black. 44 INSECTS AT TOME: This is a very common Beetle, and is rather interesting to entomologists, because, like the Brachinus, it has the power of defending itself by means of mimic artillery, and can produce a number of the explosions in succession. There are more than twenty British species of this genus. 1. Anchomenus dorsalis. 2. Pterostichus madidus. 3. Amara obsoleta. 4. Harpalus eeneus 5. Stenolophus Skrimshiranus. a. Pterostichus, right mandible. b. Prerosti- ehus, maxillary palpus. c. Harpalus, under side of leg. d. Harpalus, right mandible. e. Harpalus, maxillary palpus, Tue family of the Feroniide, which comes next in order, comprises a number of Beetles, none of which are remarkable for beauty, though there are several whose habits are very curious and interesting. They may be known by the sinuated, or wavy, form of the elytra at the apex, and by the basal joints of the front tarsi of the males. These joints are not. squared, like those of the Chleeniidze, but are somewhat heart-shaped, and furnished with two rows of bristles beneath. THE ‘ DEVOURER. 45 Our first example of this family is the Beetle which is known to entomologists by the name of Pteostichus madidus, a figure of which is given on Woodcut No. IV. Fig. 2. The strong and peculiarly-formed mandible of this genus is shown at Fig. a, and its maxillary palpus at Fig. b. The colour of the insect is shining black, with a slight brassy gloss. The smooth head has two impressions in front; the thorax is convex and narrow behind, with a bold central furrow and a deep wrinkled pit at each angle. A iens is required to make out these details. The elytra are covered with regular striz, a circumstance which has gained for these insects the generic title of Pterostichus, or ‘streaked-wing.’ There are a fewsmall punctures on each elytron, and a row of bold punctures runs along each sees The wings are not developed. This is a very common insect, and can be taken in any number, as it runs boldly about. Anglers often use it success- fully as bait. Although devoid of wings, it is very quick on its legs, darting about with such velocity that the generic name of Steropus, or ‘ lightning,’ was once applied to it and another allied Beetle. Twenty-two British species of this genus are now acknow- ledged, but in it are merged several genera of the older entomologists. WE now come to one of the largest and most interesting insect of this family, though assuredly it is not a beautiful one. This is Broscus cephalotes, a Beetle which is shown on Plate I, Fig. 4. This insect has been called the giant of its family, a name which it well deserves, as it rivals the Carabi themselves in size, sometimes reaching nearly an inch in length. Being a predacious Beetle, it is gifted with very powerful jaws, which are attached to a head of more than ordinary size. The specific name cephalotes signifies large-headed, and is appro- priately given to this Beetle. The generic name Broscus signifies a devourer, and is equally appropriate. ‘This insect can at once be known by the very large head, and the shape of the thorax, which is much narrowed towards its base. A deep furrow runs along its centre, and its base has a deep pit on either side. The elytra are rounded at the 46 INSECTS AT HOME. shoulder, and striated; some small punctures being scantily visible on the striz. The colour of the insect is black. In this Beetle we see one of the fiercest and most voracious of the whole insect race. It lives on the sea-shore, generally hiding itself beneath decaying sea-weed or stones, and making burrows under such points of vantage. From this burrow it issues in search of prey, and successfully pursues all kinds of insects, its own kind included. So voracious is it, and so many insects does it kill, that if it reside for a day or two in one burrow, it can be detected by the rejected elytra, limbs, and other parts of insects which it has caught and eaten. It is the only British example of its genus. Tue large genus Amara now comes before us, and out of the twenty-four species which are included in it I have selected Amara obsoleta as our example. This insect is drawn on Woodcut IV. Fig. 3. All the insects belonging to this genus are small, and most of them are brightly coloured. They all take rank as Sun Beetles or Sun Shiners; and, fortunately for them, there is a wide-spread superstition that it is unlucky to kill a Sun Beetle, and that its death will cause terrible storms. The members of this genus are rather wide in proportion to their length, and have the thorax wide behind, as wide, in fact, as the elytra. They have large wings, which they can use with great effect; and the males have three dilated joints on the front tarsi. These Beetles are very plentiful, and may be seen — either flying through the air on their ample wings, running about in the full blaze of the sunshine, or temporarily hiding under sticks and stones. Although it is no very difficult matter to know an Amara when it is seen, I must warn the reader that tv distinguish the different species is a task which requires the minutest attention to the smallest details,and had better be deferred until the eye has been trained to seize at once on those small but important characteristics, which at once strike the eye of a practised entomologist, and invariably elude the scrutiny of a novice. The eye can only see that which it has the power of seeing ; and it is worthy of remark that twenty or thirty young observers will miss exactly the most important detail in an insect structure until it is pointed out by an experienced entomologist, when COLOURS OF BEETLES. AT they will at once see it, and wonder how anything so obvious could have eluded them. In any large genus of insects there is always a difficulty in deciding upon the different species; and, even among the moths, where size and colour are tolerably constant, mistakes are continually made. But, among Beetles, these important 1, #pys marinus. 2. Philocthus biguttatus. 3. Notaphus [Bembidium] fumigatus. 4. Bembidium qnadriguttatum. 5. Bembidium pallidipenne. a. Apys, maxillary palpus. b. Adpys, labial palpi. c, Aipys, labrum. d. Aipys, right mandible. e. Apys, antenna. elements of size and colour go for almost nothing, and when- ever green and blue are in question, colour absolutely does go for nothing. Now, in the members of the genus Amara, blue and green are the leading hues; and five individuals, which undoubtedly belong to the same species, may be respectively bluish-green, greenish-blue, brassy, coppery, or even black. Then the head and thorax may be of one colour, and the elytra 48 INSECTS AT HOME. of another; so that no dependence can be placed upon so uncertain a characteristic. The present species is a very common one. Its colour varies from green to black, glossed with brass. The elytra are striated, and the striz are bolder and deeper towards the apex than at the base. The head is nearly smooth, but has a few strize drawn across it in front. We next come to the large family of the Harpalide, of which we shall take one or two examples, illustrating the principal genera. The males of the Harpalide have the four basal joints of the front tarsi dilated, and sometimes the corresponding joints of the middle pair of legs. These dilated joints are covered with stiff bristles. The appearance of one of these tarsi can be seen by referring to Woodcut No. IV. Fig. ¢, which represents the under side of a male Harpalus’s leg. The mentum is deeply notched, and has a small lobe in the centre. Unlike the preceding family, which are for the most part lovers of ight and fond of darting about in the full radiance of the sunbeams, the Harpalide withdraw themselves from the light, and hide themselves during the daytime in any crevice that may present itself. Should, for example, the season be a dry one, the cracks in the earth are sure to be tenanted by Harpalide; and when the spade is employed, many of the Beetles are turned up together with the soil in which they have sought a refuge, and sought it in vain. On Woodcut No. IV. Fig. 4, is shown an example of the typical genus, Harpalus wneus. In this genus three joints of the tarsi of both the front and middle pairs of legs are dilated in the males. The pretty species which has been chosen as our example is polished on its upper surface like a mirror, the colour being exceedingly variable. Some specimens are brassy, others coppery, others green of various shades, and others again blue of various shades, deepening into violet so dark that it appears to be black. There are some faint striz on the elytra, and in the flat interstices between the striz are punctures, very few towards the suture, and plentiful towards the margin. Beneath it is pitchy-black. In this insect, as indeed in most of the members of this genus, the females are much duller than their A SINGULAR DWELLING. 49 mates, this effect being produced by a very fine granulation of the elytra. There are more than thirty known British species of this genus. The mandible of a Harpalus, with its bold scoop towards the point, is shown at Fig. d of the same illustration, and the maxillary palpi at e. The species from which these specimens were taken is Harpalus ruficornis. PROCEEDING with our list, we take an example of another genus, a Beetle having the somewhat strange title of Steno- lophus Skrimshiranus. The principal mark to distinguish this genus from the preceding is that the notch of the mentum is without the lobe, which is to be seen in that of Harpalus. The species of this genus mostly inhabit wet and marshy places, such as under stones on the banks of ponds, ditches, and sluggish streams. The colour of this Beetle is dul! reddish- brown, darkening into blackish-brown towards the apex of the elytra, which are regularly striated. There is a slight groove along the centre of the pale brick-red thorax, which has also a pit on either side of the base. The head and the under surface of the body are pitchy-black. This species is mostly found in Norfolkshire, and derives its specific name from the ento- mologist who sent a specimen of it to its describer, Mr. J. F. Stevens. On Woodcut No. V. Fig. 1, is given a much enlarged figure of a very small Beetle called Apys marinus, an insect which is on an average less than the twelfth of an inch in length. In this genus only the two basal joints of the front tarsi are dilated in the male insect, and they are rather triangular in shape. The fourth joint of the same tarsus is armed with a strong spine. The parts of the mouth and head are very remarkable, and are therefore drawn in the same illustration. Fig. a represents the maxillary palpi, and 6 the labial palpi; c is the labium, d the right mandible, showing its curious notches or dentations, and é the antenna. This insect is the least of the Harpalid, and, partly from its small dimensions, and partly from its habits, is not often seen, except by those who intentionally look for it. It is one of the maritime Beetles, but carries its love for salt water farther ‘han almost any other insect, inasmuch as its favourite haunt is E 50 INSECTS AT HOME. under stones in the mouths of tidal rivers, absolutely beneath high-water mark. There are many insects which choose their residence just above the tide-mark, but that any should prefer to live below it, and be submerged by the salt water, is indeed singular. Salt marshes are also favourite resorts for this Beetle, which has been taken in various parts of England. There is only one other species of this curious genus. The colour of the Beetle is yellowish, darker above than below. The head has a curved impression on either side; the thorax has a short furrow on its centre, and a very shallow pit on either side near the basal angles. The elytra are very slightly punctated, and there are no ‘wings. WE now come to the last family of the Geodephaga, namely, the Bembidiide. In all these Beetles the palpi are formed differently from those of the preceding families. If the parts of the mouth be carefully observed, the last joint but one both of the maxillary and labial palpi will be seen to be very large, while the last joint is very short and very small, so small indeed that at first sight it looks more like a spur than a separate joint. All these insects are lovers of salt and wet places, and are found on salt marshes near the mouths of tidal rivers, such, for example, as those which cover the district between Rochester and Sheer- ness, and upon the sea-shore itself. Small as they mostly are, one species, Bembidiwm bistriatum, being the smallest of the British Geodephaga, they are ex- ceedingly voracious, and can kill creatures much larger than themselves. There is, for example, Cillenium laterale, a little copper-coloured Beetle, which never exceeds one-sixth of an inch in length and is generally much less, which, in spite of its small size, feeds on the common sandhopper, seizing the active crustacean under the body, and so destroying it. Like the A‘pys, which has already been described, this insect passes much of its time submerged under salt water. In reference to the water-loving habits of these Beetles, Mr. Westwood gives a very useful hint to entomologists who wish to procure these tiny creatures:—‘ These insects are generally found upon the margins of streams, running about with great velocity, and burying themselves in crevices in the ground or under. stones, &e.; hence, at the time of high floods in winter, THE BEMBIDIA. 51 the floating refuse is crowded with them, at which time the ecilector will not fail to obtain a rich harvest.’ Our first example of this interesting family of Beetles is taken from the typical genus, and is called Bembidiwm bigut- tatum. This Beetle is by some entomologists placed in the genus Philocthus ; but Mr. Waterhouse, whose system is followed in this work, has united several genera under the one head of Bembidium, in which he includes no less than forty-six species. The insect is drawn on Woodcut No. V. Fig. 2. Its colour is brassy or bronze-green, and its surface is polished and shining. The head has a shallow impression on each side. The thorax has a slight furrow along the centre, and a depression near each basal angle. The elytra are striated and punctured nearly as far as the apex, and between the second and third striz there are two bold impressions, from which the insect derives its specific name of biguttatum, or ‘ two-channelled. There is a reddish-brown spot at the apex. The under surface of the body is black, glossed with brassy or bronze reflections. On the same woodcut, Fig. 3, is a very pretty, though very tiny, Beetle called ean (Notaphus) fumigatum. This little insect has the head of a deep green colour, the thorax being very black, with brassy reflections. It has a short central furrow, and a deep pit ov either side near the basal angles. The colour of the elytra is exceedingly variable in different individuals. The ground here, however, is pale- brown or smoke-coloured, from which circumstance the insect derives its name of fuwmigatum, or ‘smoky.’ Two irregular black bands cross the elytra, and some black spots are scattered about them. A bluish line runs along the suture, and the strize are brown. Next comes an insect called Bembidiwm (Lopha) quadri- guttatum, which is shown on Woodcut No. V. Fig. 4. This very conspicuous little Beetle is tolerably common, and may be found in most damp places, whether the water be fresh or salt. The smooth head has a deep but short furrow on each side. The thorax is remarkably convex in front, and its colour is shining blue-green, or greenish-blue, as the case may be. E 2 a2 INSECTS AT HOME. The elytra are rather convex, and their colour is something like that of the thorax, but deepening into violet, which is some- times so dark that it appears to be black. On the shoulder of each elytron is a patch of cream-white, and there is another near the middle, the insect deriving from these white marks the specific title of quadriguttatum, or ‘four-spotted.’ The spot on the shoulder is usually rather triangular, and that on the middle of the elytron nearly round. Our last example of the Geodephaga is the pretty little insect called Bembidium wpallidipenne, which is shown on Woodcut V. Fig. 5. The head and thorax of this species are shining metallic green. The elytra are pale yellow, or straw colour, giving to the insect its specific name of pallidipenne, or ‘pale wing.’ Across the elytra runs a zigzagged dark band, varying much in different individuals both in depth of colour, in breadth, and in shape. This species occurs chiefly on the coasts of Lancashire, though it is found in other localities. The reader will probably understand that when a name is inserted between brackets, it is one by which the insect is known in other systems. CHAPTER IV. ai - HYDRADEPHAGA. WE have now completed our notices of the Geodephaga, the analogues of the land Carnivora among the higher animals, and we now come to the HypRraDEPHAGA, or carnivorous Beetles of the water—the whales, porpoises, and seals of the insect world. We know that all animals are specially adapted to the life which they have to lead, and therefore may naturally expect that Beetles which live in the water will be formed very dif- ferently from those which reside on the land, even though that land be constantly wet. Shape, for example, is likely to be altered. We know that the whales, dolphins, and seals, who have to pass either the whole or the greatcr part of their lives in the water, and to catch in it the living prey on which they feed, become assimilated in shape to the fishes ; and it is likely that insects will obey the same laws as mammals. This is really the case, the shape of all the Hydradephaga being very fish-like, in order to enable them to pass more easily through the water. As there is much more friction in passing through the water than through the air, the Water Beetles, as the Hy- dradephaga are familiarly called, have the various portions of the body fitting closely to each other, so as to leave an uniform smooth and polished surface, something lke that of the scaly surface of the fish, the slippery skin of the whales and dolphins, and the ciose-set fur of the seals. The limbs are also modified to suit the special purpose for which they are designed. As these Beetles walk less than they swim, greater provision has to be made for the latter mode of progression. Accordingly, the first and middle pairs of legs are comparatively small and feeble, the strength being thrown into the hinder pair, which are large in comparison with the 54. INSECTS AT HOME, others, and, in nearly all cases, flattened and furnished with a fringe of stiff bristles on the inner side, so that they serve as oars. They are jointed in a peculiar manner to the body, so that there is room within the thorax for a set of very powerful muscles which work them, and they are placed farther back than is usual among Beetles—a peculiarity of structure which is found also in the seals and the diving birds, especially the penguin tribe. Although they cannot, as a rule, walk well, they can all fly well, and are furnished with very large and powerful wings, so that, if food should fail them in one piece of water, they can fly to another. They generally fly at night, and have an odd way, when they reach a pond or stream, of closing their wings while high in the air, and allowing themselves to fall like stones into the water. Sometimes, deceived by the glitter in the moonshine, they have been known to fall upon the roofs of greenhouses. Not only the Beetles, but their larve inhabit the water, and they are equally predacious in both stages of existence, the larva being armed with a pair of enormous sickle-shaped jaws. They are all long and narrow, and have six minute eyes, or ocelli, at each side of the head. We will now proceed to our examples of these insects. Tue Hydradephaga are divided into two families, the Dyticidz and the Gyrinide. There is not the least difficulty in de- ciding the family to which any Water Beetle belongs, as a elance at the antenne is sufficient for the purpose. The antenne of the Dyticide are long and slender, and those of the Gyrinidz are stout, short, and club-like. Moreover, the first pair of legs are short in the Dyticide and long in the Gyrinide. We begin with the first family, and take an example of the typical genus. On Plate III. Figs. 1 and 2, are seen drawings of the Great Warer Bertiz (Dyticus marginalis). The first represents the male Beetle in the act of swimming, and the second the female, as she appears when flying through the air. The sexes of this and other species are so distinct that in the earlier days of en- tomology they were looked upon as different species. As the habits of this Beetle are almost identical with those of all its — a Wve eae PLATE III. WATER BEETLES: . Dyticus marginalis (Male). . Dyticus marginalis (Female), . Gyrinus natator (and under). m CO bD = . Dyticus marginalis, larva. . Gyrinus natator, larva. . Gyrinus natator, Pupa case (on Arrow-head), o> Or PLANTS :— Arrow-head (Sagittaria sagittifolia). eft Upper Corner. Creeping Mouse-ear (Myosotis repens). Right Upper Corner. Bristle-stalk Club-rush (Scirpus setaceus). Under Myosotis. Water Feather-fcil (Hottonia palustris). Under Arrow-head. mani a a ’ A) pep Y » vee WEAPON OF THE DYTICUS. &5 family, it will be described at greater length than can be af- forded to the generality of insects. Several details which mark the Beetles of this genus are given on Woodcut No. 6. At Fig. a is a magnified representa- tion of a most curious development of structure. If one of these Beetles be examined on the under side, the metasternum 1, Agabus biguttatus. 2. Hydrephilus duodecim-pustulatus. 3. Haliplus variegatus. 4. Cnemidotus caesus. 5, Pelobius Hermanni. a. Dyticus, process of metasternam, db, Dyticus, maxillary }alpus. c. Dyticus, anterior leg of male, d. Dyticus, labial palpi. e. Gyrinus, posterior leg. (7. Gyrinus, antenna. will be seen to have a forked and rather sharp projection from its centre, the points being directed to the end of the abdomen. What may be the object of this curious appendage is not easy to say; certain, however, it is, that it can be used as a weapon on some occasions. When, for example, an unpractised entomologist catches one of these Beetles in his hand, and has taken care to keep his 56 INSECTS AT HOME. fingers out of the way of its jaws, he finds himself suddenly and smartly wounded, as the Beetle struggles to regain its liberty. The fact is, the insect, led by some strange and un- accountable instinct, always retrogrades when seized in the hand, and so inflicts a rather unpleasant wound with the ends of this appendage. Whether or not it knows of the presence of the weapon, and the use to which it is put, is of course im- possible to say; but that the insect can use its forked dagger as well as if it were thoroughly acquainted with it, any of my readers can easily test for himself by going to the nearest pond and catching a Dyticus. Other Water Beetles possess the forked appendage; but it takes different shapes in different species, and is exceedingly useful to entomologists, by enabling them to decide upon the species when other marks fail them. This is, by the way, not the only weapon which the Dyticide possess. Like the Carabide, and some other Geodephaga, they exude a fluid of a singularly unpleasant smell when they are captured ; but the liquid in question is white, and not black like that of the Carabide. At Fig. b is shown the maxilla and palpi of the Dyticus, and d are the labial palpi. As the two sexes are so dissimilar in appearance, it will be necessary to describe them separately. The colour of the male Beetle is dim black, with the margins of the elytra marked with a yellowish streak, narrow towards the apex, and widening considerably towards and on the shoulders. It is in consequence of this streak that the Beetle has received the specific name of marginalis. The elytra are very smooth, with the exception of three rows of punctures on the disc. There is a reddish- yellow triangular mark on the forehead, and a very slight ridge on the crown. The thorax is blacker than the elytra, and, like them, has the margin yellow. The legs of this Beetle are excellent examples of these limbs as they are modified in the Hydradephaga. Both the middle and hind pairs of legs are flattened, oar-like, and furnished with the bristle blade, and the coxa is so made that it only allows one kind of movement to the limb. In consequence of this peculiarity the Dyticus cannot walk properly, but only scrambles about; and if it should by chance fall on its back on a smooth surface, it spins round and round in a most ludicrous fashion. FEET OF THE DYTICUS. 57 The first pair of legs, however, are the most interesting. We have already seen that, in very many Beetles, the tarsi of the front pair of legs are dilated in the male, but there are none which even approach those of the Dyticus in complexity of structure. The geodephagous males have the under surface of these dilated joints merely furnished with a pad, but the Dyticus has a most wonderful array of suckers, exactly analo- gous in principle to those which stud the arms of the cuttle- fish. One of these legs is shown on Woodcut No. VI. Fig. e. The three basal joints of the tarsus are enormously swollen, so that they assume a plate-like shape. Their upper surface is smooth enough, but the under surface is covered with suckers, one of them very large, and the second about half its size, and a multitude of smaller suckers. The larger suckers are placed directly upon the joint, and the others are at the end of slender footstalks, looking something like the ‘ patera’ cham- pagne glasses with the stems much attenuated. In order to see this beautiful structure properly, several specimens ought to be used. One can be simply cleaned, and viewed as an opaque object, while another is cut so as to give a section of the joints, and to show the manner in which the suckers spring from them. ‘Three more specimens should also be prepared, but mounted as transparent objects in Canada balsam. This will be found rather a difficult process, but one which will very well repay all the trouble. The difficulty is to get rid of the air which remains in the suckers, and which makes the mouth of each sucker look like a black shining ball. A structure, similar in principle, though varying in detail, is found throughout this group of Beetles. The female is, as has been stated, very different from the male in appearance. She does not possess the wide tarsi which are so conspicuous in her mate. The elytra are very different from those of the male, and, instead of being smooth and polished, are deeply grooved nearly as far as the middle. The voracity of this Beetle is really astonishing. It will eat almost any kind of insect, or any kind of meat, raw or cooked, preferring the former. Sometimes it is placed in fresh-water aquaria by those who are not acquainted with its powers, and the result is always disastrous. Not only will it attack every living creature in the aquarium, but during the night; it 58 INSECTS AT HOME. is sure to take to its wings and fly off in search of more food. Even gold fish have been attacked by this insatiate devourer, which does not even spare its own kind, and devours the oppo- site sex as well as its own. When these Beetles take flight from the pond or stream in which they have been living, they always crawl up a reed or a water-plant, so as to gain space to spread their beautiful wings. In consequence of this freedom of locomotion, this Beetle may be found in almost any pond, however small it may be. Even when ponds have been reduced to mere puddles by the drought of summer, the Dyticus may be found plentifully, hiding itself in the still soft mud. The mode in which this insect breathes is really wonderful. Being an insect, it is forced to breathe atmospheric air, and yet it has to pass the greater part of its time under water. The problem is solved by the Beetle converting itself for the nonce into a diving bell, receiving the supply of air as often as needful. This feat is accomplished in the following way :—The body is rather flat, so that there is a space between the folded wings and the elytra. Now, these elytra are very large, and, when closed, are quite air-tight. When the Beetle wishes to breathe, it comes to the surface of the water with its head downwards, and just exposes the tip of its abdomen to the air. In a moment it has expelled the air which has already been used in breathing, and taken ina fresh supply, with which it dives to the bottom. As the spiracles, or mouths of the breath- ing tubes, open into the space between the elytra and the abdomen, they can take in the air, and pass it through the system. Sometimes, if the observer will approach very quietly, he may see the Beetles floating with their heads downwards, the tips of their tails just above the surface of the water, and their hind legs spread out so as to balance the body in this -strange position. All the Dyticidz employ this curious mode .of supplying themselves with air, but it is most conspicuous in ‘the larger species, and is therefore described in connection with this Beetle. There is a rather remarkable point in the structure of the «wings. On the inside of the elytra, and at their bases, is a pair of membranous plates with finely-fringed edges, something “like wings, for which reason they have been called ‘alulets,’ or viittle,wings. These cannot be seen while the insect is at rest, LARVA OF THE DYTICUS. 59 but when it takes to flight, the alulets are exposed. These Beetles have the power of producing a sort of humming sound, some species louder than others, and it is generally thought that the sound is produced by means of the alulets. Having now glanced at the history of the perfect Beetle, we will turn to its larval existence. There is no possibility of evading the fact, that the larva of the Dyticus is ugly. It is very ugly. It is the crocodile of the insect world, lying unseen in its muddy bed, and darting out at any luckless insect that may pass near it. One of these larve is shown on Plate III. Fig. 4, as it appears when seizing its prey. When full grown, this larva is two inches in length. Its colour is yellowish-brown, sometimes one tint predominating, and sometimes the other. The reader will see how this sombre- ness of hue enables it to lie concealed upon the mud as it waits for prey. At the end of its body may be seen two slender appendages fringed with hairs. These appendages commu- nicate with the breathing tubes which pervade the body, and the larva may be observed in a position resembling that which is assumed by the perfect insect, the head downwards, and the extremity of the tail just above the surface of the water, sus- pended and balanced by the appendages. The mode in which this formidable creature obtains its nourishment is very remarkable. The mandibles are, as may be seen by reference to the plate, large, sharp, and curved. When submitted to a good magnifier, they are seen to be con- structed on the same principle as the fangs of a poisonous serpent, a hollow groove running throughout their length. This groove is not left open, but is closed for the greater part of its length by a membrane, an aperture being left at the base. This singular structure enables the larva first to plunge its mandibles deeply into the body of its prey, and then to suck out its juices though the hollow jaws. As isthe case with the carnivorous Beetles generally, the larva soon attains its full growth, and, when the time is at hand for its change into the helpless pupal condition, it takes itself to the bank, up which it climbs, and, burrowing into the damp earth, forms for itself a sort of round cell or cocoon, within which it assumes the pupal form. Should the change GO INSECTS AT HOME. occur in the summer, the pupa changes into a Beetle in a fortnight or a few days more, according to the warmth of the weather ; but if the larva should retire within its cell in the autumn, it remains dormant during the winter, and does not appear until the following spring. As is the case with dark- coloured Beetles generally, the newly-developed insect is very light in colour and soft in texture, not assuming its hard, dark coat of mail until the expiration of some days. There are altogether six British species of this genus. We now pass on to another genus, of which nineteen species are acknowledged to inhabit England, and will take, as our example, Agabus bipunctatus, a figure of which is given on Woodcut No. VI. Fig. 1. It has already been mentioned that the Dyticide inhabit _ equally running or still water, and that they may be found indis- eriminately in rivers and ponds. Still, some species prefer the still, and others the running waters, and the latter insects are almost always of brighter colour than the former. Such is the case with the pretty little Beetle which is now before us. The head is yellow in front, and black on the crown, with two rust- red spots, sometimes fused into one, and sometimes so faint as to be scarcely visible. The thorax is yellow, with the ex- ception of two round black spots on the disc. These sometimes are fused together, like those of the head. The elytra are pale- yellow, diversified with small black-brown streaks, a brighter yellow spot near the middle, and a stripe of the same colour down the suture, and upon the lateral margins. Passtna over several genera we come to a Beetle which is shown on Woodcut No. VI. Fig. 2. It is called Hydroporus duodecim-pustulatus, and is selected as an example of a very large genus, containing between forty and fifty species. All the Beetles of this genus have their bodies much flattened, and the tarsi of the first and middle pairs of legs with four joints, while those of the hind pair have five joints. The two first joints of the antenne are rather longer than the others. They are all small Beetles, and the present species is perhaps the largest of its fellows, though it is, on an average, only a quarter of an inch in length. The colour of the head is dvll * HALIPLUS AND CNEMIDOTUS. 6] reddish-brown, lighter and redder in the middle. The anterior margin of the thorax has a black stripe in the middle, while a similar stripe on the posterior margin is widened so as to form two black lobe-like marks on the thorax. The elytra are black, and on each elytron are six spots of the same colour as the middle of the head, three of the spots running parallel with the suture, and the other three being placed along the margin. Beneath, the body is yellowish. This pretty little Beetle is exceedingly common in some places, and correspondingly rare in others. Although the spots differ much in size and shape, and in some specimens are even fused into each other, there is no difficulty in recognising the insect. Our next example of the Hydradephaga is Haliplus varie- gatus, an insect which is shown on Woodcut No. VI. Fig. 3. Like the last species, this is a pretty little Beetle, and exceedingly variable in its colour, so variable indeed that it has been described by the same writer under the name of at least two species. It is a very small insect, not quite one-sixth of an inch in length. Its usual colour is as follows:—The head is dark brick-red, deepening into blackish-brown on the top. The thorax is paler than the head. The elytra are rather con- vex, sharply pointed, deep reddish-brown in colour, and have some blackish spots near the margin. This variety is common ; but there is one which is much rarer, and in this the general hue is greyish-yellow, and the whole insect altogether lighter in colour. The brightest-coloured specimens are found in rather swift streams running through a gravelly soil. There are eleven British species belonging to this genus. On Woodcut No. VI. Fig. 4, is shown another of these prettily- coloured but variable Water Beetles. Its name is Cnemidotus cesus, and it has a vast amount of detail in its colour, in spite of its small size, which does not exceed one-sixth of an inch. The general colour of the insect is light-yellow, the head is punctated, and upon the base of the thorax is a curved, punctated impression. In order to see the markings on the elytra, or indeed to see any part of the markings properly, a good lens is required. When viewed with such assistance, the 62 INSECTS AT HOME. elytra are seen to be covered with alternate stripes and dots, arranged in regular lines, of which there are two on each elytron. This pretty little Beetle may be found in most parts of England, pools and ditches being the best localities for it. It is the only British species of its genus. Our last example of the Dyticide is that which stands last in the list. It is called Pelobius Hermanni, and is shown on Woodcut No. VI. Fig. 5. This is the only British specimen of its genus, wnich is very distinct from all the other Dyticide, inasmuch as there is a distinct scutellum, and all the legs are formed for walking, the hinder legs not possessing the peculiar mode of jointing which was mentioned on page 54. The body is very convex. The colour‘is rather variable, but may be summed up as follows :—The hue of the Beetle is rust-red, and there is a blackish patch round the eyes. The thorax has the front and hind margins black. The convex elytra have a blackish patch in the middle, and are longitudinally wrinkled, the wrinkles converging towards the suture at the tip of the elytra. Like the preceding insect, though not very common, it is spread tolerably evenly over the country. It has the capability of producing a squeaking sound when handled. Havine now gone through the Dyticidz, we come to the second family of the Hydradephaga—that of the Gyrinide, or Whirl- gig Beetles, so called on account of the manner in which they whirl themselves about on the surface of the water. There is not the least difficulty in determining whether or not a Water Beetle belongs to the Gyrinide. Besides the distinctions mentioned on page 54, the peculiar antenna of a Gyrinus is shown on Woodcut No. VI. Fig. /, and the hinder leg ‘at Fig. e, both being much magnified. Besides these points, all the Gyrinide appear to differ not only from the Dyticid, but from Beetles generally, in having, or rather in appearing to have, four compound eyes instead of two. The real fact, how- ever, is that, in order to suit the peculiar habits of the insects, the structure of the eye is modified. These Beetles pass the greater part of their time on the surface of the water, rowing themselves about with wonderful EYES OF THE WHIRLIGIG. 63 velocity, and always on the look-out for prey. If the eyes were formed like those of the Dyticide, the water would certainly impinge against them and render the insect incapable of seeing, by reason of the drops of water which would be continually splashed over its eyes. In order to enable it to see properly above the surface, it is needful that the eyes should be placed high enough to be out of reach of the water ; and to enable it to see objects in the water, it is necessary that the eyes should be submerged. All practical entomologists are personally acquainted with this latter fact; for they know well that if they want to see objects at the bottom of the water, the only way to do so is to lie on the bank and submerge the eyes entirely. In some parts of the world fishermen use a water-telescope for the same purpose. This is nothing more than a tube, open at one end, and having a plain glass closely fitted to the other. When used, the closed end is pushed well below the surface, and the eye applied to the open end, when it is found that objects can be seen nearly as well below as above the water. The eyes of the Whirligig Beetles are in fact water-telescopes. Instead of being placed in two masses, one on each side of the head, each is divided by the portion of the head which carries the antennz; so that half of the eye-cluster is well out of the water, and can see objects above the surface, while the other half is submerged, and can see objects beneath it. The Common Wuiruieie, Gyrimus natator, which is shown on Plate III. Fig. 3, is very gregarious in its habits, and may generally be seen in small companies, whirling about on the surface of the water in very still and sheltered places. As they dart about, they often strike against each other; but the shock does no harm to their hard and polished bodies, and they go on with their unceasing round as if nothing had happened. Their chief object in thus continually darting over the surface is to obtain food, which consists principally of small flies, Beetles, and other insects which fall into the water. They use their long fore legs in the capture of prey. They are watchful little Beetles, and if they fear danger they dive to the bottom, and there remain until they think that they can return in safety to the surface. As in the case with the Dyticidse, these insects-are furnished 64 INSECTS AT HOME. with large and powerful wings, which they can use freely ; and by the aid of which they can leave one piece of water and go tc another at will, so that a newly-formed puddle is sometimes seen with several of these Beetles disporting themselves on the surface. The life history of the Gyrinus is rather a curious one, and is much the same with all the species. The eggs are deposited on a water-plant, and laid in regular rows. From them, in a week or a little more, the curious larve are hatched. One of these larvee is shown on Plate III. Fig. 5. It is dirty-white in colour, and has a large, flat, oval head, armed with powerful jaws, and six rather long legs; while from each side of the eight last joints of the body proceeds a very slender filament, which is part of the respiratory system. The last segment has two pairs of these filaments, each of which is seen, on being viewed by the aid of the microscope, to contain an air-tube, which passes into the body and there joins the general system. When in the water its appearance is very much like that of a centipede, except that the respiratory filaments have no in- dependent motion, like the legs of the centipede, but trail loosely in the water. In due time the larva is full-fed, and it then, as do many other aquatic creatures, leaves the water and crawls up the stem of a water-plant, until it is several inches above the sur- face. Having found a safe place, it spins for itself a small grey cocoon, and there waits until it has assumed its perfect state, when it breaks through the walls of the cover, and again seeks the water. One of these cocoons is shown on Plate ILI. Fig. 6, attached to the leaf of the Common Arrowhead (Sagittaria sagittifolia). Like the Dyticide, almost all the Whirligig Beetles exude a whitish liquid of a very unpleasant odour, and are sure to do so when handled. There are six English species of Gyrinus, some of which are rarer than others. The present species, which is the most common, is about a quarter of an inch in length, and blue- black in colour, with a reddish mouth. The elytra are greenish at the margins, and become narrowed towards the apex. They are very slightly striated and punctured. " A much rarer species is Gyrimus bicolor, which must be HAIRY WHIRLIiGIG. 65 sought in salt marshes and similar localities. It is much larger in proportion to its width than the preceding species, so that it can at once be detected. The most remarkable, or at least the most divergent, of the Whirligigs is the Harry Waurriicig (Orectochilus villosus), which may at once be de- ' tected by the fact that the upper part of its body is black, covered with short greyish down. The body is reddish-yellow beneath, and the elytra are thickly and deeply punctated. This insect is not so fond of society as the other species, neither does it love the light of day, but hides itself in the banks of rivers and running waters during the daytime, and seeks its prey by night. In consequence of this habit it is not often seen, and even in places where it is tolerably common is sure to escape the observation of anyone who does not know how and when to look for it. It is rather a local insect, and Mr. F. W. Hope gives the Dart and rivulets on Dartmoor as a favourite locality. ‘ The popular name Whirlwig is often substituted for Whirli- gig. The generic title Orectochilus is formed from two Greek words, signifying ‘ stretched-lip,’ and alludes to the structure of the labrum, or upper lip, which is lengthened by a pale- coloured fringe on its edge. CHAPTER V. BRACHELYTRA. Tue group of Beetles which comes next in order is equally conspicuous with the Hydradephaga, but utterly unlike it or any of the groups which have been described. These Beetles are long-bodied, agile, and seem to play the same part among Coleoptera as the weasel tribe among the Mammalia. Most, though not all of them, are predatorial, and some of them, especially the larger species, are -exceedingly fierce as well as voracious, and will fight any foe, no matter how much they may be overmatched., The name Brachelytra is. a very appropriate one, signifying short elytra. These insects have the elytra very short and syuared, so short indeed that six or seven segments of the abdomen generally protrude beyondthem. Although the elytra are so small, the wings are very large; and, though they must necessarily be folded in a most complicated manner before they can be packed under the elytra, these insects can take the air with more readiness than any other Beetles, ex- cept, perhaps, the Tiger Beetles, whose manner of flight has been described on page 16. In foldiug the wings under the elytra, the Beetle is cbliged to act in a very curious manner, bending the tail over the back,’and with the extremity of the body arranging the wings under their sheaths. The earwig uses its forceps for a similar purpose, as we shall see when we come to that insect. Fig. c, Woodcut No. VII., shows one of the large Brachelytra in the act of packing up its wings. In consequence of their activity both on the wing and on foot, these insects have gained the popular name of Rove Burress. All these Beetles have the habit of bending their bodies upwards when alarmed, for which reason they have received the popular name of Cocktail Beetles. ‘his act bas, in the ODOUR OF THE ROVE BEETLES. 67 larger species, so menacing an aspect that many persons are afraid to touch so formidable an insect. In reality, the smaller species are more to be dreaded than the larger. I have already mentioned that the Brachelytra take easily to wing, when they may be mistaken for flies, so ample are their wings and so quick their movements. Many of them are very small— not thicker than an ordinary horsehair—and these are almost invariably the little black ‘ flies’ that are in the habit of getting into the eye on fine summer evenings, and causing an amount of pain which seems quite disproportionate to the size of the insect. Of course even a small fly would cause pain if it got into the eye; but when one of these Beetles finds itself imprisoned, it instinctively turns up its pointed tail, and thus causes a double amount of irritation. I believe that, out of every ten ‘flies’ that get into the eye, seven are Bra- chelytra. Although the larger Brachelytra need not be particularly dreaded, in spite of their fierce looks, it is as well not to handle them without necessity. Their bite, although sharp, is of no particular consequence; but they possess a more formidable weapon, than their jaws. At the end of the tail are two tuber- cles, which exude a secretion of the most odious character. Like that of the skunk, it has an odour, or rather a stench, peculiarly—and fortunately so—its own, and which cannot be described by any comparison. That of the common snake, when irritated, comes, perhaps, nearer it than any other; but even that singularly unpleasant emanation is not so utterly disgusting as the effluvium of an angry Rove Beetle. As each group of insects has certain characteristics by which its members can be identified, I will here mention some of the chief characters which mark the Brachelytra. The observer should first note the comparative sizes and shapes of the joints of the antenne, palpi, and tarsi; then, let him look for the spiracles, or breathing holes, in the prothorax. Next in importance come the quantity and colour of any down that may be on the insect ; while the relative width of the front tarsi will deter- mine the sex. Tue first family is that of the Aleocharide. In this family the spiracles on the sides of the prothorax are plainly visible, F2 68 INSECTS AT HOME. the antennz are set ciose between and in front of the eyes, and the last joint of the maxillary palpi is very small and thread- like. The form of the maxillary palpus can be seen by refer- ence to Woodcut No. VII. Fig. d. In this family the front tarsi of the males are not wider than those of the females, but they can be detected by looking at the last segment but one 1. Falagria sulcata. 2. Aleochara fuscipes. 3. Atemeles emarginatus. 4. Oxypoda luteipennis. 5. Homalota brunnea, a, Staphylinus, anterior tarsus of female, undilated. d. Staphylinus, anterior tarsus of male, dilated. ¢. Staphylinus, closing its wings with ex- tremity of its tail. d,. Falagria, maxillary palpus, e. Falagria, rignt mandible. ff, Falagria, labial palpi. g Falagria, antenna. of the abdomen, and seeing whether it is tubercled, ridged, or has a thicker posterior margin. In such cases the insect is of the male sex. This is in many respects a very remarkable group of insects, because in no less than eight of the genera included in it there are Beetles which are parasitic upon other insects, and which pass the whole of their lives in the nests of ants. There is THE SMALL ROVE BEETLES. 69 even one species that inhabits the nest of the sand martin. In the course of the following pages we shall come upon several of these curious Beetles. Our first example of this family is Falagria sulcata—it is drawn on Woodcut No.VII. Fig. 1. There are four species of this genus, which is distinguished by the large head, which is very distinct from the thorax, the first joint of the tarsus long, and the bases of the elytra without wrinkles. The structure of the antennz can be seen by reference to Fig. g in the same illustra- tion ; the maxillary palpns is shown at d, the right mandible at e, and the labial palpi at /. All the Beetles belonging to this genus are very small, and many of them may be captured with an ordinary butterfiy-net, while on the wing. Some of the Brachelytra are so exceedingly minute that the best plan to procure them is the ‘ catch-em- alive-oh’ principle. A few sheets of white paper should be brushed over with very pure gum-water and left to dry, when they will be useful at any time. When the entomologist wishes to capture these minute creatures, all he has to do is to choose a warm sunshiny day, damp one of these gummed sheets, and wave it about under trees until it is dry. On examining it, a number of tiny blackish specks will generally be seen, and most of these, when a lens is brought to bear on them, prove to be Brachelytra. The same paper can be used over and over again, the captured insects being removed with the point of a fine camel-hair pencil dipped in water. The specics which we are now examining is shining brownish-black in colour. The thorax is rather heart-shaped, and along the centre runs a very deep furrow, reaching to the scutellum. The elytra are very wide, smooth, and slightly sunk at the base. The legs and base of the antenne are brick-red. This specimen is a very curious one, and may be found in all parts of England, buried in fungi and decaying vegetable matter. o Tue typical genus Aleochara has the head deeply sunk into the thorax, which is convex and broad. The elytra are broader than they are long. The abdomen has a flattened margin along the sides, and the tarsi have five joints, the basal joint of the hinder tarsi being longest. The antennz are short, stout, and the fourth and tenth joints are of equal length. 70 INSECTS AT HOME. On Woodcut VII. Fig. 2, is represented a good example of this genus, Aleochara fuscipes. The colour of this Beetle is shining-black. The antennz are short and thickened in the middle. The elytra are red, edged with black, and the legs and base of the antenne are red, the thighs being dull-brown instead of red. This insect flies rapidly. It is a common species, and, small as it is, yet is the largest of its genus. It haunts decaying substances, whether animal or vegetable. Fifteen British species are known. ANoTHER member of the same family, Atemeles emarginatus, is shown on Woodcut VII. Fig. 3, and is a rather odd-looking insect. The genus is distinguished by its broad body, and the two projections upon the last joint but one of the abdomen. The second and third joints of the antennz are small. There are only two British species of this genus. The general colour of this insect is shining-brown. The head is black, and the thorax has a shallow furrow along its disc. The elytra are red-brown, covered with short golden down, and the posterior angles are produced into short sharp spines. This is one of the parasitic Beeties, residing in the nests of the bank-ant (Formica fusca), and a smaller species of ant (Myrmica ruginodis). Both these ants are very fond of their guest ; and if the nest be opened, the ants take as much care of the Beetles as of their own young, picking them up in their jaws, and carrying them into a place of safety. That these Beetles do not eat either the ants, their eggs, or their young is evident from this fact; and it is thought probable by many entomologists that the Beetle discharges some secretion which is grateful to the ants, as is the case with sundry Aphides. Tux little Beetle, Oxypoda luteipennis, which is represented on Woodcut VII. Fig. 4, also belongs to the same family. The leading characteristics of this genus are as follows. The thorax is much broader behind than in front, and the head is sunk in it nearly to the eyes. The elytra have a distinct notch at the outer angle of the apex. The abdomen is strongly margined, and the tarsi have the basal joint rather larger than HOW TO ELUDE AN ENEMY. 7) the second. The antenne are long, and slightly thickened at the tip. There are fourteen species of this genus. The head of this species is black, and the thorax is convex, with a deep pit at the base. Its colour is dusky-black, covered with down. The elytra are dull brick-red, becoming brown at the suture; the legs are red, and the abdomen is black with red edges to all the segments. The insect is common every- where. Tue Beetle which is our next example of this family belongs to an enormous genus, containing at least 160 species. Its name is Homalota brunnea, and it is drawn on Woodcut VII. Fig. 5. . In this genus the head is without any distinct neck, and the body is narrow and much flattened. The tarsi of the front legs have four joints, and those of the hind legs five joints, the four first joints being equal in size. The joints of the antenne are bead-like. The present species is a flat, shiaing, brick-red insect, with the exception of the head and the last segment but one of the abdomen, which are grey-black, the abdomen being thickly and rather deeply punctured. ‘There is a very shallow groove in the middle of the thorax. The legs are pale reddish-brown. This isa very common insect, and yet Mr. E. A. Smith, who has long given much attention to the Brachelytra, tells me that he cannot fix upon any special locality for it, having found it indifferently in sand-pits, on palings, and similar places. Indeed, the whole family is a very bewildering and trouble- some one to the investigator, and would require the uninter- rupted labour of several years before it could be thoroughly mastered. Our last example of this large family is the Beetle called Gyrophena gentilis, which is drawn on Woodceut VIII. Fig. 1. The Beetles of this genus are broad in proportion to their length, and much flattened; yet, in spite of their short bodies, they are able to double, or rather roll, themselves up until they look like anything but insects, and are difficult of detection. The thorax is wider than the head and very short, and the elytra are wider than they are long. The anterior 792 INSECTS AT HOME. tarsi have only four joints, and the posterior five joints, the latter having the basal joint longer than the others. The species is dusky-red, with a tinge of yellow, with the exception of the head and a belt on the abdomen, which are pitchy-black. The thorax has a definite margin, and is thickly punctured. The legs are paler than the body. It is found on 1, Gyrophena gentilis. 2. Quedius dilatatus. 8. Creophilus maxillosus. 4, Philonthus fharginatus. 5. Xantholinus glabratus. a. Philonthus, right mandible. b. Quedins, right mandible, c. Philonthus, labial palpi. d. Quedius, labial palpi. e, Philonthus, antenna, fungi of various kinds. There is a curious point about this insect which is worth recording. One of the very rarest of the British Brachelytra is a Beetle of the same family, called Myrmedonia Haworthi, one of the parasitic Beetles. When the Gyrophena gentilis is placed under the magnifier, so as to enlarge it to the size of the Myrmedonia, the two Beetles are almost exactly alike. ‘SETTING ’ ROVE BEETLES. 73 Tue family of the Tachyporide comes next in order. Tese Beetles have the head usually sunk deeply in the thorax, without any distinct neck. The spiracles of the prothorax are conspicuous, and the antenne are before the eyes, on the margin of the forehead. The males have the basal joints of the tarsi dilated. All these Beetles are unrivalled for their speed, and in consequence of this characteristic the name of Tachyporide, or ‘ swift-footed,’ has been given to them. Among these insects will be found the most troublesome examples of that telescopic shutting up of the body which has already been mentioned. Mr. E. C. Rye recommends the fol- lowing plan for preserving the proper-shape of the Beetle :— ‘The best way in mounting them is to put gum arabic, with which a little sugar has been melted, under the tail; and, as soon as that is dry, gum the entire last segment over with tragacanth, keeping the abdomen from contracting (if you can) » with a card brace. They should not be dried quickly.’ Some of these insects are so troublesome in this respect, that the only plan of getting them back into shape is to fix the last segment of the body to the card with a tiny drop of coaguline or diamond cement, which soon sets. Then, when it is sufficiently hardened, take the front part of the body in the forceps, and draw it gently forward until the segments of the abdomen have been pulled out to their proper extent. Then put a small drop of coaguline under the thorax, press it down with a card brace, aud keep it down until it is dry. Our first example of this family is a Beetle called Boletobius atricapillus, which is shown on Plate IV. Fig. 1, two specimens being drawn as crawling on the top of a mushroom, and the other in flight. The insects of this genus live in fungi of different kinds, on which account they are called by the name of Boletobius, or ‘ fungus-inhabiting.’ Others are seen as they appear when running in and out of the gills of a mushroom. In this genus, which contains eight species, the body narrows to a point behind, the head is long, the palpi slender, and the antenn are long in proportion to the size of the insect. The general colour of this species is glossy-red and shining. The head, breast, scutellum, and tip of the abdomen are black, and the elytra are blue-black with a cream-white curved mark Tt INSECTS AT HOME. on the shoulder, and a line of the same cclour upon the posterior margin. The antenne are rather curiously coloured, the four first joints being black, the next tive pale-red, and the last black, like those of the base. It is a very common insect, and may be found in fungi in the autumn. Indeed, in consequence of their fungi-loving habits, all these Beetles are to be found towards the close of the year. As this is a common species, the reader is recom- mended to try his hand at setting it in the way above- mentioned. Even if three or four be spoiled, plenty more can be procured, and the practice will be invaluable when insects of greater rarity have to be set. None of the Tachyporidz are large, and though most of them frequent fungi, many are found under leaf-heaps, in bones, and similar localities. Tue reader will experience no difficulty in identifying the curious Beetle drawn on Woodcut No. VIII. Fig. 2, when he finds it; for, in the first place, he will find no other Beetle in the same locality, and in the next place, its serrated antennz and round and shield-like thorax will at once point it out to him. The name of this Beetle is Quedius [ Velleius | dilatatus. There are more than twenty species of this genus, which may be known by the shield-like thorax. Some of them are ex- ceedingly variable; one of them, Quedius fulgidus, having been called by no less than thirteen names. The present species is broad and black, with a beautiful iridescence on the abdomen, and, although so sombrely coloured, is a great acqui- sition to the cabinet. Formerly it was the rarest of the rare among British Beetles, and even now is one of the greatest treasures that au entomologist can possess; but, now that its locality is known, it may perhaps oftener find a place in our cabinets. The secret of its rarity is that it is one of the parasitic Brachelytra, and lives in the nest of the hornet. Mr. F. Smith, who has paid so much attention to this subject, thinks that the larva of the Quedius feeds upon that of the hornet, and mentions that he has found in a hornet’s nest a considerable number of dead larvae, which he believed to be those of the Quedius. Up to the present time, 1871, he has not found a specimen of the Beetle, though he has opened very many hornets’ nests. We may call it the Hornet Berrie RARITY OF THE HORNET BEETLE. io Even now that the locality of this Beetle is known, to secure a specimen is no easy matter. In the first place, it is a very exceptional piece of good fortune to find a hornets’ nest that contains a Quedius dilatatus, as I can testify from personal experience, having seen plenty of hornets’ nests and never seen a living specimen of this Beetle; and in the next place, a hornets’ nest cannot be taken like that «f the wasp. To take a Wasps nest is a very easy business, as the wasps always rest at night, and their fortress can be stormed without the least danger. But hornets have an uncomfortable plan of working by night as well as by day, sv that no small risk has to be run by anyone who tries to take the nest of a hornet. . Moreover, whereas wasps usually make their nests in the ground, where they can easily be dug out, Iiornets generally make theirs in the hollows of trees, and often at a considerable height from the ground, so that they cannot be extracted without the use of saw, mallet, and chisel. The late Mr. F. Stone, who probably had more experience with wasps and hornets than any other naturalist, told me that, if he began to cut out a hornets’ nest at midnight, he never expected to finish his task until six or seven next morning, exposed the while to the attacks of hornets that had been out to collect food or material. So it is no wonder that Quedius dilatatus should be a valuable acqui- sition, even though we do know where to find it. The Beetle, however, does not restrict itself to the hornet, but is sometimes parasitic on the caterpillar of the goat-moth. In this case, though the task of getting it out of the tree is not so dangerous as in the case when it quarters itself on the hornet, it is quite as tedious and fatiguing. One species of this genus, Quedius brevis, is to be found in the nests of the wood-ant (Formica rufa). One of these Beetles is shown on Plate XI. The length of this insect is about half an inch, and its elytra are brick-red. Tue family of the Staphylinide, which comes next in order, contains the largest species of this group of Beetles, some of them reaching, or even slightly exceeding, an inch in length. They may be known by several peculiarities of structure. The antenne are set far apart, their junction with the head being in front, within the base of the mandibles, which are large and 76 INSECTS AT HOME. formidable. The maxillary palpi are slender, and the ligula small. The spiracles of the prothorax are large. he tarsi of the front feet are dilated in the males and slender in the females, and may be seen by reference to Woodcut No. VII., where Fig. a represents the tarsus of a female Staphylinus, and b the same joint in the male. The jaws, too, are not so powerful in the female, neither are their heads so large as in the case with the other sex. Our first example of the Staphylinide is one of the finest—in my opinion the very finest—of that family. It is called scien- tifically Creophilus mawillosus, but has, unfortunately, no popular name, probably because it is confounded in the popular mind with the common black species, which will be presently desertbed. Its name is more appropriate and expressive than is generally the case with insect names. The word Creophilus is of Greek origin, and signifies ‘ flesh-lover, while the specific title of mazillosus signifies ‘ large-jawed.’ Both names show that those who affixed them to the insect were thoroughly ac- quainted with its character and form, for the Beetle is a most voracious carrion eater, and has jaws that are of enormous size in proportion to its body. The colour of this Beetle is shining- black, but it is mottled with short grey down. In some places this Beetle is tolerably plentiful, but in others it is seldomif ever seen. It can generally be captured in the bodies of moles that have been suspended by the professional mole- catchers—and, indeed, these unfortunate moles are absolute treasure-houses for the coleopterist, as we shall see when we come to the next group of Beetles. A figure of this insect is given on Woodcut No. VIII. Fig. 3. It is the only British species of its genus, which is distinguished by having short and thickened antenn, smooth head and thorax, and the latter rounded. Next comes a Beetle belonging to the typical genus of the family, or, indeed, of the entire group. It is the Rep Rovz BretLte (Staphylinus cesareus), which is represented on Woodcut VII. Fig c, in the act of closing its wings after flight, and on Plate IV. Fig 3, as it appears when flying. There is some little difficulty respecting the name of Staphy- Jinus. This title is given by ancient writers to two very PLATE IV, ROVE BEETLES AND BURYING BEETLES. DNA Q Oo fF wON + — SS BPwohb Fr © . Boletobius atricapillus. . Ocypus olens (eggs below). . Staphylinus czsareus, . Necrophorus humator. . Necrophorus vespillo. . Necrophorus mortuorum. . Choleva angustata. . Hister bimaculata. . Nitidula depressa. . Boletobius in gills of Mushroom, . Necrophorus humator, larva. . Silpha thoracica, larva. . Ocypus olens, larva. . Silpha thoracica (on body of bird), PLant :-— Edible Mushroom (Agaricus campestris). DEVIL'S COACH-HORSE. ee different objects, namely, a carrot or parsnip, and a sort ot Beetle that gives out an unpleasant odour. As, however, the insect in question was said to walk about with its tail in the air, entomologists have considered that the term was applied to some of the Brachelytra, and, rightly or wrongly, the name has been accepted by entomologists of all countries. The specific name cesareus, given to this insect, is in allusion to its colour, which resembles the ‘ clotted-blood’ purple of Cxsar’s imperial mantle. There is another insect, which is found in the uorthern part of England, and which very much resembles this species. It is the Staphylunus erythropterus, or Ruddy-winged Rove Beetle, and may be distinguished by the fact that the scutellum is covered with gold-coloured hair. The Beetle is tolerably com- mon, and in the summer-time may often be seen on the wing, when it looks something like a reddish, long-bodied bee. It is fond of settling on gravel walks which are exposed to the heat of the sunbeams, partly for the sake of the warmth, and partly because the colour of the gravel harmonises with the ruddy hue of its body. Six species of this genus inhabit England. The genus is distinguished by having the whole of the body nearly smooth, the thorax squared, and the antenne slender Now comes an insect that is very familiar to us, the Drvi1’s CoacH-HoRSE, as it is popularly and fancifully called. Its scientific name is Ocypus olens, and it may be recognised by a glance at Fig. 2 on Plate IV., where it is represented in the attitude which it assumes when annoyed or when thinking itself in danger. I really think that this is the very ugliest insect in England. It is scarcely so repulsive as the cockroach, its wonderful courage and spirit being redeeming points, but it is so very hideous, that the popular name exactly expresses its appear- ance. Its colour is dull, dead black, its eyes, which scarcely project from the head, have a cold, cruel look about them, and its tail, when raised menacingly like that of a scorpion, pro- trudes two yellow vesicles at the tip, from which emanates the horrible odour that has been already mentioned. Sometimes it finds its way into cellars and larders, if they be wholly or 78 INSECTS AT HOME. partially underground; and then the servants are always much alarmed at the creature, of which they have a dread which is superstitious rather than the offspring of mere prejudice or ignorance. As its appearance suggests, it is one of the predacious Beetles, and is as fierce and brave as it is voracious. It really seems not to know what fear is, and no enemy seems to frighten it. I once came across one of these Beetles at the foot of the old Clif- ton Baths stairs at Margate, and threatened it with the point, of my stick. The Beetle at once dashed at the stick with open jaws, and fought most valiantly. Of course I did not wish to hurt the insect, so I merely continued the feigned attack, the Beetle retreating with its face to the foe and its jaws wide open, until it had fairly surmounted the whole flight of stairs, invariably turning round as it reached the top of each stair, and making a fresh dash at the stick. It was exceedingly angry, but did not show the least symptom of fear, though I repeatedly struck violently within a few inches of its head. I was so pleased with the dauntless courage of the Beetle, that, when it reached the top, I put it into a deep chalk crevice of the cliff, where it would be safe from the mischievous boys who infest the place. This is one of the most active of Beetles. Being furnished, like all its family, with long and ample wings, and not being burdened, like the chafers, with a thick and heavy body, it flies with great rapidity, and can pass over incredible distances without being obliged to rest. It is equally active on the ground, for which reason the generic name of Ocypus, or ‘swift-footed,’ has been given to it. Some writers on entomo- logy have given to this insect the generic name of Goerius, or ‘mournful,’ in consequence of its sombre and funereal colouring. The specific title olens, or ‘stinking,’ is given to it in consequence of the horrible emanations from the tail tubercles. We will now glance at the life history of this Beetle, which, in spite of its ugliness, is really a very interesting one. The eggs of all the Staphylinide are large in proportion to the creature which produces them, but those of the Devil’: Coach-horse are larger than those of the largest British insect, being one-tenth of an inch in length and one-twelfth broad. PUP OF THE ROVE BEETLES. 79 A group of these eggs is shown on Plate IV., just below the Beetle itself. When these are hatched little larve issue from them, some- what similar in form to the parent insect, though, of course, without any vestige of wings. These larvee are quite as fierce as the perfect insects, and much more voracious, eating beillg indeed, as with all larve, the chief business of their lives. They are predacious, and, though they will devour carrion when they can procure it, will attack and kill any insect which comes near them, not even sparing their own kind. They have an ingenious mode of seizing their prey in the soft interval be- tween the head and neck, and then, plunging their sharp and curved jaws deeply into its body, suck out its juices. These larvee can be found throughout the spring, and may often be captured by digging shallow holes in the ground in some sheltered spot, placing a piece of meat, a dead bird or frog, in the hole, and covering it with a stone so as to protect it from the elements, but leaving space for the ingress and egress of the Beetles. Towards the end of spring or the be- ginning of summer, the larva is full fed, and burrows a hole in the earth, in which it undergoes the change to the perfect form. There is a strange peculiarity about the pupe of these Beetles. With nearly all wing-bearing Coleoptera, the wings are folded uAder the elytra, even though the latter organs be comparatively short; but, in the pupze of these curious Beetles, the wings are extended beyond the elytra and fold over the breast, so that two-thirds of their length is seen beyond the elytra. They remain in the pupal state for a fortnight or three weeks, and then assume the perfect form. The Beetle is most plentiful in the autumn. I strongly recommend any of my readers not to injure this Beetle, repulsive as it may ap- pear. It does no harm, either to the garden, the orchard, or the field, but, on the contrary, from its inveterate insect-eating habits, rather confers a benefit on the agriculturist. Specimens of this Beetle should always be set so as to show the beautiful wings; and one should be set on its back, in order to exhibit the peculiarities of the under side. None of the Brachelytra are easy insects to set properly, as their legs have a tendency to twist themselves in the wrong direction, or 80 INSECTS AT HOME. to fall off altogether, and their long bodies have a way of shutting up like the joints of a telescope, so that the end of the tail only comes a little beyond the elytra, thus entirely altering the normal shape of the insect. These larger Staphy- linidze, however, are not so troublesome as the smaller genera, amd the beginner will find it better to commence with them, and then proceed to the smaller kinds. There are eleven British species of this genus, which is known by the long thread-lke antenne, with the last joint oblique at the tip and the large head. Our next example of the Staphylinide is an insect of much less size and very ditferent shape, called Philonthus marginatus, the only specimen that we can take of the very large genus, of which forty-seven British species are acknowledged. In this genus the thorax is squared, the antennz and palpi are slender, and there is a strong tooth in the middle of each mandible. The antenna of this genus is shown on Woodcut No. VIII. Fig. e, the mandible, with its central tooth, at a, and the labial palpi at c. The name Philonthus signifies ‘dung-loving, and is given to this genus because the largest and most conspicuous species are found under patches of cow or horsedung. Some of the smaller species, however, live under heaps of decaying sea-weed, such as Philonthus fucicola, the latter term signifying some creature that inhabits sea-weed. The present species is generally to be found under dead leaves. The colour of this little Beetle is black, but the legs and the margin of the thorax are reddish-yellow, a peculiarity from which it derives its specific name marginatus. The middle segments of the abdomen have their edges yellow. This is a very curious Beetle. Tue family of the Xantholinide may be distinguished from the Staphylinidze by the position of the antenne, which are inserted before, and not within, the base of the mandibles, and are consequently much nearer each other than those of the preceding family. The spiracles of the prothorax are con- spicuous. The middle pair of legs is longer than the others. They are nearly all black, diversified with reddish-yellow, and are very slender bodied ; and, in consequence of these charac- THE RED-NECK. St teristics, the name of Xantholinide, or ‘vellow threads,’ hai been given to them. This thread-like form allows the insects to pack themselves up into a very small space ; and when they are reposing, they act like the Hottentots, and double themselves up in so small a space that when they are disturbed and unroll themselves, it is really surprising to see how the insect gra- dually developes its limbs and general form. The characteristics of the genus can easily be seen by re- ference to Woodcut No. VIII. Fig. 5, which represents a com- mon and pretty species called Xantholinus glabratus. The | head is long, and the small eyes are placed well in the front. There is a small cylindrical neck, and the thorax is marked with bold punctures, which afford a valuable means of detect- ing the various species. The present species is black, with blood-red elytra. The disc of the thorax has four distinct rows of very large punctures. The sides of the head and thorax are _ punctured, and the whole surface is glossy, as indeed is ex- pressed by the specific name glabratus, which signifies smooth or polished. . Eight British species are acknowledged. ANOTHER family, the Pzderide, now comes before us. In this family the spiracles of the prothorax are invisible, and the antenne are set on the sides of the very front of the head. The maxiliary palpi are rather long, and have the last joint so ny that it scarcely looks like a joint. The left maxilla and its palpus are shown on Woodcut IX. Fig. f. The head is attached to the thorax by a very delicate neck, so that in a dried specimen great care must be taken lest the head should fall off. In some species there is a definite footstalk connecting the head and thorax together. We can only take one example of this family, namely, the small but well-known Beetle called by entomologists Stilicus fragilis, a figure of which is given on Woodeut IX. Fig. 1. In this genus, of which there are seven British species, the head is wide and rounded, and the thorax is much narrowed in front. The curiously-toothed mandible is shown at Fig. ¢ of the same illustration. The present species is one of the few Brachelytra that has a popular name. It is called the Red-neck, on account of the bright-red colour of the thorax. Its head is shining-black, G 82 INSECTS AT HOME. covered with very small punctures, and the elytra are bluish- biack edged with red. The legs are light-red. On account of the extreme tenuity of the connection between the head and the narrowed thorax, this insect is apt to fall to pieces in the cabinet if the drawer containing it be shut with a jerk, and it has therefore obtained the specific name of fragilis. It is not 1. Stilicus fragilis. 2. Stenus bimaculatus. 3. Omalium florale. 4. Prognatha quadri- cornis. 5. Micralymima brevipenne. a. Stenus, hgula. 6. Stenus, left mandible. Co Stilicus, right mandible. d. Prognatha, maxillary palpus. e. Prognatha, labium, fe Stilieus, maxillary palpus. g. Stenus, maxillary palpus. a very common insect, but is spread tolerably widely, and may be found by careful searching in hotbeds and heaps of decaying vegetable matter. Other species of this curious genus can be found by looking in the proper places. Stilicus geniculatus, for example, in- habits chalky districts, and Stilicus orbiculatus must be sought in marshes. THE STENIDZ AND OMALID. 83 Next comes the family of the Stenidz. These insects may be known by the position of the antennz, which are generally set between the eyes or on the front margin of the forehead. The basal joint of the maxillary palpi is long, and the last joint almost imperceptible. See Fig. g on Woodcut IX. Sometimes the young entomologist is much puzzled by a phenomenon which takes place with sundry small Beetles belonging to the Brachelytra. As soon as they are killed a long and slender tongue-like organ darts from the mouth, and protrudes itself until it looks like a proboscis. These Beetles belong to the genus Stenus, of which we have an example in Stenus bimaculatus, which is shown on Woodcut IX. Fig. 2. This tongue-like organ is in fact composed of the ligula, the two paraglosse, and the labial palpi, as may be seen by reference to the same illustration, Fig. a. The mandibles of this genus are strongly formed, having one very large tooth, and four very small teeth, as may be seen at Fig. 6. The fourth joint of the tarsi has a slightly double lobe. The long and slender maxillary palpus is shown at g. The present species is black, with the exception of a round tawny spot on each elytron, from which the insect has derived its specific name of bimaculatus, or ‘ two-spotted.’ The surface is thickly and deeply punctured, and is covered with a scanty whitish down. There is a deep furrow along the middle of the thorax. The legs are tawny, with the exception of the knees and tarsi, which are black. This is ty very common and very good example of the genus, and indeéd so well exhibits the characteristics of the family that it is worth a detailed examination. It is a very common insect, being found all over England, and almost always to be taken on the banks of ponds and rivers among the aquatic plants. In tolerably warm weather it may be taken running about upon the stems of the plants, and on cold days lurking in the muddy soil about their roots. Mr. E. A. Smith, to whom I am indebted for much information concerning the smaller Brachelytra, tells me that all the spotted Steni are found in the wettest situations. This genus is a very large one, containing more than fifty species. Tue next family on our list is that of the Omalide. In o 2 84 INSECTS AT HOME. these Beetles the spiracles of the prothorax are hidden, the antenn are set on the sides of the forehead, and the maxille have a horny hook at the tip ; and there are two ocelli, or simple eyes, upon the back of the head, this being a very valuable cha- racteristic in arranging these insects. As a rule the Oma- lide have flattened bodies, and long slender antenne, and delight in damp places, whether wetted by fresh or salt water ; so that they can be found under heaps of decaying sea-weeds on the coasts, and under stones on the banks of ponds. Some of them may be found under bark, and some in flowers; so that they have a very wide range of locality. Our first example of this family, Micralymma brevipenne, is remarkable for its fondness for wet. The genus is known by its very minute elytra, the long and broad abdomen, and the long hairs upon the tarsi. A figure of the insect is given on Woodcut EXE igs O. The colour of this tiny Beetle is shining-black, and it may easily be recognised by its size, shape, and colour, and the locality in which it resides. It takes up its abode under decaying sea- weed, but always selects a* spot that is well’ below high-water mark; its object being, apparently, to give itself a chance of being drowned or carried away to sea twice in the twenty-four hours. It remains in this singular locality throughout the whole of its life, and contrives, in’ some strange way, to pass through its transformations, subject to the perpetual washing of the waves. ANoTHER example of the same family is shown on Woodcut IX. Fig. 3, its name being Omaliwm florale. In this genus the body is rather oval and flattened. The antenne are short and hairy, becoming thicker at the tips. The thorax is short, somewhat heart-shaped, and narrowed behind. The four basai joints of the tarsi are short. The species which serves as our example of the typical genus is greyish-black and shining, the surface being thickly punctured, and the punctures inclined to form strive on the elytra. The legsare reddish, and the antenne and palpi black. This is one of the flower-loving species, being found in the spring time frequenting the flowers of the hawthorn and sallows It is distributed over England generally, but does not seem to THE FOUR-HORN. 85 be plentiful in any particular locality. Twenty British species of this genus ure known. Wr have only space for one more example of the Brachelytra : it is drawn on Woodcut IX. Fig. 4. As may be seen by re- ference to the illustration, this is a very curious insect. It is the only British representation of the family to which it be- longs, namely, the Piestide. In this family the spiracles of the prothorax are hidden, the coxe of the front legs are globular, and those of the hind legs transverse; there are five joints to the tarsi, and the last segment of the abdomen is very small. The genus is characterised by the flat, elongated body, the long and hairy antenne, the Jong elytra, the five-jointed tarsi, and the horned head of the males. The maxillary palpus is shown at Fig. d, and the labinm at e. The colour of this insect is shining-black. The elytra have four strize, and on the dise is an oblique mark or dash of reddish-brown, the outer angle being dusky. The tip of the abdomen is chestnut, and the legs and antenne red. The illustration represents a male insect, in which sex the sides of the head are developed into two sharp horns pointing forward. The mandibles are each furnished with a large horn. This very remarkable insect, is not very scarce, and may be found under the bark of various trees. Kensington Gardens is a good locality for it, where it may be found lurking under the bark of elm-trees. The scientific name of this Beetle is Prognatha quadricornis, and it is popularly styled the Four-horn. I may here mention that the only viviparous Beetles at present known, belong to the Brachelytra. They are about one- tenth of an inch in length, and are found parasitic in the nests of the Brazilian Termites or White-ants. The abdomen is enormously large, and is turned back over tue head, like the tail of a squirrel. CHAPTER Vif. NECROPHAGA. Tue r2ader will probably observe that, in the groups of insects which have already been described, allusion has been made to the analogies between them and certain groups of vertebrates. The Geodephaga, for example, represent the land Carniv ora, the Hydradephaga those of the water, and the Brachelytra represent in some degree the slender and lithe-bodied weasels. We now come to a group which takes among insects the part which is played among the higher animals by the hyenas and vultures, these Beetles being the scavengers of the insect world. The name NecropuaGa, i.e. ‘carrion-eaters, which dis- tinguishes this group, is expressive of their character. By some systematic entomologists they are called CLAvicoryEs, or ‘club-horned,’ because their antenne, slender at the base, are expanded at their tips into a rounded knob. This shape of antenna is called ‘clavate’ by entomologists. The form of the antenna is an admirable characteristic by which these Beetles may be known. There is no palpus on the inner lobe of the maxilla, the scutellum is always conspicuous, and the elytra are wide, though not always long. Indeed, in many species they do not nearly reach the end of the abdomen, and are quite as short as those of many Brachelytra. In such cases they are generally ‘truncate,’ i.e. looking as if they had been cut off square. Tuts is the case with the first family of Necrophaga, the Silphide. The mandibles are powerful, as is required for the work which they have to perform, there is a very distinct labrum, and the trochanters of the hind legs are projecting. These are again subdivided into two sub-families; the first being called Silphina, and the latter Cholevina. The former sub-family may BURYING BEETLES. 87 be known by the fact that the antenne have ten joints, and a very distinct and rounded club. Their wings are very large and powerful, as is needful for insects whose food is necessarily scattered over a very wide area. It is worthy of notice that, when they are flying, their elytra are carried very upright, so that their backs approach quite closely to each other. The first genus of the Silphide is Necrophorus, a word which signifies ‘ carrion-bearer, in allusion to the singular habits possessed by all the Beetles of this genus. They do not content themselves with merely eating their food, but they bury it, and then lay their eggs in it, so that it serves not only asa feast for themselves, but as a provision for their future young. In consequence of this habit, they go by the popular name of BuryrnG, or Sexton Brererues. It is a very appropriate name, for there is scarcely any dead animai or portion of an animal which they will not contrive to bury; and if it be too large for one Beetle, several others will take a share in the work. If the reader will refer to Plate IV., he will see that a number of these Beetles are engaged in burying a dead bird. They will bury birds, frogs, rabbits, pieces of meat, or any- thing of a similar kind, and do it with wonderful rapidity ; thus rendering a doubly important service, by removing the decaying animal matter from the surface of the earth, and helping to fertilise the ground by burying it below the sur- face. The manner in which these Beetles execute so difficult a task is admirably told by Mr. E. Newman, in his ‘ Letters of Rusticus ’— ‘Two days after, I was again in Godbold’s; and seeing the bullfinch lie where he had been left, I lifted him up by the leg, intending to make a present of him to a fine colony of ants established, a little further on, in the days of Genera] Oglethorpe, and which had maintained their station ever since. They had made many a pretty skeleton for me, and I intended to add that of a bullfinch to the store; but the buzz of a Beetle round my head caught my ear. He flew smack against the bull- finch, which | was holding up by the leg, and fell at my feet. I knew that the gentleman was a Burying Beetle; and as I put the bird down for him, he soon found it, mounted upon it, and, after much examination, opened out his wing-cases and flew away. I will profit by his absence to tell you a bit of his history 88 INSECTS AT HOME. ‘The Burying Beetle is about an inch in length; he is black, with two bands across his back of a bright-orange colour: these bands are formed by two blotches of that colour on each of the wing-cases. He is a disgusting creature though in such a gay dress, being so fetid that one’s hands smell for hours after handling him; and if he crawls on one’s coat, or other garments not often washed, the smell continues for days. The whole tribe of Burying Beetles lay their eggs in the bodies of dead animals, which, when possible, they bury for the purpose. In Russia, where death itself does not do away with distinc- tions, the poor people are buried but a few inches under ground, the coffin consisting of four boards roughly nailed together, and not particularly well fitted. The operation of burying is often at the expense of the country, and therefore done from necessity, not love. This mode affords great satis- faction to the Burying Beetles, as it saves them the labours of the grave-digger. They avail themselves of the bodies placed so nicely within their reach, and the graves are pierced with their holes in every direction. At evening, hundreds of these Beetles may be seen in the Russian burying-places, either buzzing about the graves, or sitting placidly at the mouths of their burrows, which lead into them. ‘The Burying Beetle in this country seldom finds so con- venient a provision for him, and he is under the necessity of taking much more trouble. He sometimes avails himself of dead dogs and horses, but these are too great rarities to be his constant resort: the usual objects of his search are dead mice, rats, birds, frogs, and moles; of these, a bird is most commonly obtained. In the neighbourhood of towns, every kind of garbage that is thrown out attracts these Beetles as soon as it begins to smell; and it is not unusual to see them settling in our streets, enticed by the grateful odour of such substances. ‘The Burying Beetles hunt in couples, male and female ; ‘and when six or eight are found in a large animal, they are alinost sure to be males and females in equal numbers. They ‘hunt by scent only, the chase being mostly performed when mo other sense would* be very available—viz. in the night. When they have found a bird, great comfort is expressed by the male, who wheels round and round above it like an eagle ; vthe:female settles on it at once, without this testimonial of BURYING A BULLFINCH. 89 satisfaction. The male at last settles also, and the bird under- goes the scrutiny of four at least of the senses—touch, smell, sight, and taste—for their heads are continually diving among the feathers of the bird, and a savoury and ample meal is made before the great work is begun. After the Beetles have appeased the calls of hunger, the bird is abandoned for a while ; they both leave it to explore the earth in the neighbourhood, and ascertain whether the place is suitable for interment. If on a ploughed field, there is no difficulty; but if on grass or among stones, much labour is required to draw the body toa more suitable place. ‘The operation of burying is performed almost entirely by the male Beetle, the female mostly hiding herself in the body of the bird about to be buried, or sitting quietly upon it, and allowing herself to be buried with it. The male begins by digging a furrow all round the bird, at the distance of about half an inch, turning the earth outside. His head is the only tool used in this operation; it is held sloping outwards, and is exceedingly powerful. After the first furrow is completed, another is made within it, and the earth is thrown into the first furrow; then a third furrow is made, which being under the bird, the Beetle is out of sight. Now the operation can only be traced by the heaving of the earth, which soon forms a little rampart round the bird; as the earth is moved from beneath, and the surrounding rampart increases in height, the bird sinks. After incessant labour for about three hours the Beetle emerges, crawls upon the bird, and takes a survey of his work. If the female is on the bird, she is driven away by the male, who does not choose to be intruded on during the im- portant business. ‘The male Beetle then remains for about an hour perfectly still, does not stir hand or foot; he then dismounts, diving again into the grave, and pulls the bird down by the feathers for half an hour. Its own weight appears to sink it but very little. The earth then begins heaving and rising all round, as though under the influence of a little earthquake ; the feathers of the bird are again pulled, and again the bird descends. At last, after two or three hours’ more labour, the Beetle comes up, again gets on the bird, and again takes a survey. and then drops down as though dead, or fallen suddenly fast asleep, 90 INSECTS AT HOME, When sufficiently rested, he rouses himself, treads the bird firmly into its grave, pulls it by the feathers this way and that way, and, having settled it to his mind, begins to shovel in the earth. This is done in a very short time, by means of his broad head. He goes behind the rampart of earth, and pushes it into the grave with amazing strength and dexterity, the head being bent directly downwards at first, and then the nose elevated with a kind of jerk, which sends. the earth forwards. After the grave is thus filled up, the earth is trodden in, and undergoes another keen scrutiny all round, the bird being completely hidden; the Beetle then makes a hole in the still loose earth, and, having buried the bird and his own bride, next buries himself. The female lays her eggs in the carcase of the bird, in number proportioned to its size; and after this opera- tion is over, and the pair have eaten as much of the savoury viand as they please, they make their way out, and fly away in quest of further adventures.’ We will now examine these insects a little more in detail. On Plate IV. Fig. 4, is seen the large Necrophorus humator, just by the head of the bird. This is a large, though not brightly-coloured species. It sometimes exceeds an inch in length, and its colour is deep, shining-black, with the three last joints of the antennz reddish-yellow. The fringe-like pads of the tarsi are of the same colour. This is a very common species. Under the neck of the bird two Burying Beetles are seen forcing their way beneath it. These are two distinct species, and are thus given, because in this attitude they display the distinguishing marks of the species. The Beetle nearest the bird’s beak is Necrophorus mortuorum. It varies in size from not quite half to three-quarters of an inch. Its colour is black, but on the base of the elytra is a broad, waved, orange band, and at the apex is a curved spot of the same colour, The hinder tibie are straight, and the club of the antenne is black. This is also a common species, and is sometimes found in decaying fungi, as well as in animal matter. ; Next to this Beetle isa rather larger species, Vecrophorus vespillo, which is, on an average, nearly a quarter of an inch longer than the preceding insect. A casual observer would ODOUR OF THE BURYING BEETLES. 91 inevitably believe these insects to be of the same species, especially if he saw them apart. The practised eye of the entomologist, however, at once detects the marks of difference. In the first place, the hind tibiw are not straight, but much curved, like those of a bow-legged man, and the club of the antenne is orange. There is also a narrow line of golden down on the front of the thorax. In the next place, there is a considerable difference in the orange marks of the elytra, which are two broad waving bands, one across the base, and the other towards the apex, both being connected by a narrow band of the same colour upon the margin. This species is exceedingly variable in size, some specimens being barely half an inch in length, while others attain the length of an inch. It is very common in all parts of England. The specific name vespillo is Latin, and signifies a man who carried out the dead for burial at night. The reader may as well be warned that, although these Beetles are very pretty to the eye, they are not equally pleasing to the nostril, being in the habit of sending from their mouth a horribly fetid black fluid, the odour of which is as enduring as it is disgusting. This fluid is probably produced by the putrid nature of its food, for Beetles which have recently changed from the pupal form, and those which have fasted for some time, do not possess it. We will now trace the progress of the insect from the egg to the perfect Beetle. Soon after they are deposited, the eggs are hatched; the larve being rather long, fleshy, narrowed at each end, and having the segments, or rings, of the body very distinctly marked. The legs are very tiny, and much too small to move the large, heavy body. A curious substitute for legs is, how- ever, found. On the upper surface of each segment is a horny plate, with strongly-toothed edges. By alternately elongating and shortening its body, the creature is able to force its way through the soft material on which it feeds, just asa snake glides upon the ground, or the worm beneath it. One of these larvee, a very young one, is shown on Plate IV. Fig. 11. When the larva has attained the length of an inch anda half, and is full-fed, it prepares for its change into the pupal state. This it does by ceasing to feed, and making for itself a 92 INSECTS AT HOME. sort of cell or cocoon under the ground, in which it casts off its larva skin, and becomes a rather odd-looking pupa, having the end of its tail armed with two sharp spines, by means of which it is able to turn itself about in its cell, from which it emerges, in the spring, a perfect Beetle. 1. Necrodes littor’ ls. 2. Scydmeenus tarsatus, 3. Anisotoma cinnamomea, male. 4, Agathidium levigatum. 5. Meligethes zeneus. a. Scydmeenus, antenna. b. Meligethes, maxilla. c. Anisotoma, labial palpi. d. Necrodes, maxillary palpus, e. Necrodes, la- bium. J. Necrades, antenna. g. Anisotoma, antenna. On Woodcvt No. X. Fig. 1, is a Beetle which is closely allied to the preceding genus, but can at once be distinguished by the shape of the antennx, the club of which is egg-shaped, and not glob»lar, and by the shape of the elytra, which gra- dually increas* in width from the base to the apex, where they are abruptly truncated. Its name is Vecrodes littoralis. The reader will notice the great size of the femora (or thighs) of the hind pair of legs. This is a sign that the specimen from THE SILPHAS AND THEIR HISTORY. 03 which it was drawn wasa male. The colour of the Beetle is black, the three last joints of the antennz being reddish- yellow. Each of the elytra has three smooth ridges running down its complete length, and a short one at the base between the second and third ridges. Between the second and third ridges there is a bold elevated tubercle, the second ridge bend- ing towards it and then beriding back to its course. Beneath, the body is glossy-black. Though not so plentiful as the preceding insects, this is not a rare Beetle, and can be found in carrion, or under decaying sea-weeds. I have knocked it out of suspended moles. The antenna of this Beetle is shown on the same illustration, Fig. 7, the maxillary palpus at d, and the labium ate. A favourite resort for this Beetle is the bank of a river, or the sea-shore, and on this account it has received its specific title of littoralis. This is the only British species. Tue genus Silpha is known by the flattened body, the antenne being less boldly clubbed, and having eleven joints - instead of ten. There are thirteen species inhabiting England, and they are all much smaJler than the members of the pre- ceding genera. Upon Plat> IV. is shown the handsomest of the British Silphze, namely, Silpha thoracica. It is represented as crawling over the body of the bird. This fine insect is readily known by its colouring. The head is black, and the thorax is brick-red, covered with a very short golden down, and much crumpled. The elytra are very much like those of the preceding insect, being black, and traversed longitudinally by three ridges, the second and third of which are connected by a raised tubercle. The surface, however, is more satiny than that of Necrodes, and, when viewed with a magnifying lens and a strong light, the space between the ridges is change- able in patches, like ‘moire’ silk, and there are short ridges at the base of the elytra. « The larve of all the Silphas are very different from those of Necrophorus. Instead of being sluggish, fat, long-bodied grubs, they are active, flat, and wide, running about with wonderful velocity. A heap of old marrow bones is a very favourite baunt of these larve, and, if the bones are tapped so as to disturb without hurting their inmates, it is wonderful to see 94 INSECTS AT HOME. how the flat, black larvae come scurrying out, looking very much like black wood-lice, and perfectly well able to take care of themselves ; while the larvze of Necrophorus are utterly help- less on the surface of the ground. Silphee may be found in much the same localities as the preceding insects. The best places to find them are, however, the moles that are too often seen suspended on twigs, and the more moles there are near each other, the richer will be the harvest of Silphz. I have found that ten moles on one branch contain many more Silphz than double the number scattered over a wide area. But, the ‘ happy hunting grounds’ of any entomologist who is looking after Necrophaga are the ‘keepers’ trees,’ those monuments of misguided energy. The best keepers’ trees, in an entomological point of view, are those of the New Forest, and on them are found the carecases of owls, weasels, stoats, hawks, mag*pies, ravens, and now and then a rare bird or two, such as the honey-buzzard. The suspended carcases look quiet enough, but when the net is held under one of them, and a series of taps administered, it is wonderful to see how it swarms with animal life. First, out come Beetles of various kinds, some trying to,tly away as soon as they reach the open air, but most letting themselves fall into the net. Next comes a whole swarm of larvee, and, when the bird is a large one, it really seems as if the creatures never would cease from pouring out. Those who wish to collect and watch the habits of these Beetles cannot do better than make a preserve for them by hanging up the body of a rabbit, a puppy, a kitten, or some such creature, so that it may be within the reach of the eye, and out of the reach of any except winged devourers. The word Silpha is Greek, and signifies an ill-smelling insect, but the nomenclature of the ancient writers is so uncer- tain that we cannot absolutely identify the name with the insect. The specific name thoracica, refers to the very con- spicuous colour and the large size of the thorax. The larvae of this Beetle is shown on Plate IV. Fig. 12, first appearing from under the wing of the bird. Tue sub-family of the Cholevina are known by their nar rower bodies, and their heads being sunk im the thorax. One INFLUENCE OF LIGHT ON COLOUR. 95 of these Beetles, belonging to the typical genus, is drawn on Plate IV. Fig. 7, and is shown as crawling on the top of one of the mushrooms. Its name is Choleva angustata. The genus, of which there are seventeen British species, is known by its narrow body, its long and slender legs and antenn, the very obtuse hinder angles of the thorax, and the oval and striated elytra. The insect is represented of its natural size, which seldom varies much from one-sixth of an inch in length. The head is black and shining, the thorax is pitchy- black, becoming greyish at the margins and posterior angles. The elytra are rather variable in colour, black being the lead- ing hue, but taking shades of red or grey according to the individual. The apex is round and short, and each elytron is marked with seven faint stria. The legs are pale reddish- yellow. The body is covered with a very fine and very short yellowish down. It is not uncommon to take a specimen that is pale rusty- red or yellow, the reason for this paler hue being that the Beetle has only recently emerged from the pupal state, or that the atmosphere has not exercised its full influence upon it. When it has been exposed for a few days to the air and light, the reddish-yellow will change to the dark-red or grey-black which is the usual colour of the Beetle. Next comes the family of the Scydmenide, of which we shall take one example, namely, Scydmanus [Eumicrus] tarsatus, which is shown on Woodcut X. Fig. 2. These insects are ail very minute, the present species, though only the twelfth of an inch in length, being the largest of the family. They are all covered with down, are without wings, and have the elytra coming completely to the end of the abdomen. The facets of the eyes are very boldly marked, and the peculiar form of the antenne, which are terminated with three very large joints, each increasing in size, may be seen by reference to the same illustration, Fig. a. The maxillary palpi are very conspi- cuous. The head and thorax of this species are black, and the elytra are very deep chestnut. Like the rest of its kin, it is to be found in hotbeds, leaf-heaps, cucumber frames, and similar localities. The name Scydmenus is Greek, and signifies ¢ sullen. 96 INSECTS AT HOME. Tue family of the Anisotomidz is known from the Silphida by several points of structure, none of them being singly very conspicuous, but not to be mistaken in the aggregate. They are much more globular, the Silphide being ‘flattened; the legs and antennz are short, and the mandibles have a single tooth at the base. Like the preceding family, these are small insects, the largest being Anisotoma cinnamomea, which is shown on Woodcut X. Fig. 3. This Beetle is about one-sixth of an inch in length. In this genus the tarsi of the first and middle pairs of legs have five joints, while those of the hinder pair have but four joints. The club of the antenne has three joints, as may be seen at Fig. g of the same illustration. The structure of the labial palpi is shown at c. The generic title Anisotoma is derived from a Greek word signifying unequal, and has been given to these Beetles in consequence of the inequality of the joints of the front and hind tarsi. The specific name cinnamomea refers to the colour of the insect, which is very much like that of cinnamon, with the exception of the club of the antenna, which is black. There are eight punctured strize on each of the elytra. The hinder tibize are very long and boldly curved in the male, but not in the female insect, which has them small and straight. This Beetle is found chiefly upon the truffle. There are twelve or thirteen species of this genus. Another member of this family is shown on Woodcut X. Fig. 4. Its name is Agathidiwm levigatum. In this genus the antennz are short, and the club is egg- shaped and composed of three joints. The thorax is large and round, and with overhanging sides, and the body is very globu- lar. All the tarsi have four joints. The present species is smooth shining-black, with the exception of the lateral and posterior margins of the thorax, which are edged with a narrow line of rust-red. The elytra are not striated. Like all the members of the genus, this insect has a habit of rolling itself into a ball when alarmed, so that it looks more like a very small shot than an insect. It inhabits fungi and decaying wood, dead leaves, and similar localities. It can be best obtained by taking up handfuls of dead leaves from under. hedges, and shaking them over paper, when the Agathidia will appear like little black beads. THE MIMIC BEETLES. 97 They will not stir for a long time, unless the sun be shining powerfully on the paper. Tux important family of the Histeride now comes before us. These are flattish square-bodied Beetles, with a sort of steely look about them, and as hard to the touch as if their elytra were veritable pieces of plate armour. It is no easy task to get a fine entomological pin through these creatures, the pin either bending, or its point repeatedly slipping off the hard and polished surface of the Beetle in a manner calculated to injure the temper as well as the pin. I always used to keep by me a rather fine needle fixed in a handle, and projecting about one-third of an inch, so that I could pierce the hard elytra with the steel point, and then introduce the pin. This needle was useful in setting many other hard-bodied Beetles, especially some of the weevils. These hard and glossy elytra are much shorter than the body, and abruptly truncated; but below them may be seen a beautiful and wide pair of wings packed away with wonderful neatness. The basal joint of the antenne is very long, and the club is boldly marked, the three last joints being almost fused into a globular and velvety knob. The generic name of Hister is derived from a Latin word signifying an actor or a mimic, and is given to these Beetles on account of their habit of simulating death when alarmed. The popular name of Mimic BrxEtxes is often given to them by entomologists. On Plate IV. Fig. 8, may be seen one of the handsomest species of this genus, namely, the Four Spor Mimic Breer. (Hister quadrimaculatus). The colour of this insect is black, but on each elytron is a large C-shaped red mark reaching from the base nearly to the apex. This mark is often divided in the middle, so as to produce the effect of four red spots on the back. A narrower line of the same colour mostly runs along the margin ; but this, like in many other Beetles, is apt to he exceedingly variable in the arrangement of its colouring. This, together with the rest of the genus, can be found in or under decaying animal matter, patches of cowdung being favourite resorts. The pertinacity with which these insects will feign death when captured is most remarkable, for they will endure aimost any amount of rough handling without H 98 INSECTS AT HOME. giving the least signs of life, the legs being folded flatly under the body so that they are scarcely visible. Indeed, I scarcely know whether they or the Pill Beetles, which will presently be described, are the most obstinate in this respect. The larvee of the Mimic Beetles are also to be found in cow- dung, and are not in the least like their parents, being long- bodied, cylindrical, whitish in colour, with two forked appendages at the tail. Some species prefer dead animals, and may be found in the moles to which reference has already been made. About fourteen British species of Hister are known; and the young entomologist will find that, owing to variations of colour, he will often be rather perplexed to determine the exact species of some new capture. Wirz great reluctance I am obliged to omit several genera, and must proceed at once to the next family, the Nitidulide. The Beetles of this family have short clubbed antennze. The head is sunk in the thorax as far as the eyes, and the mandi- bles are notched at the tip; the thorax is rather square, and the tarsi have five joints. The body is flattened. The little Beetles which are found in such numbers in flowers, and have such shining bodies, mostly belong to this family, to which the name of Nitidulide@ has been given on account of their glittering bodies. The typical sub-family, the Nitidulina, are known by the length of the elytra, which reach to the last joint of the abdomen, andthe shape of the thorax, which does not cover the base of the elytra. One of these insects, Nitidula [ Omosita] depressa, is shown at Fig. 9 on Plate IV., and is represented as crawling up the stem of the central mushroom. The body of this Beetle is oval, and, as may be inferred from its name, is much flattened. Its colour is rusty-brown, and the surface is thickly punctured. Upon the elytra are some faint oblong black streaks, and a curved mark of paler hue than the rest of the body. This is a very plentiful species, and may be found in fungi, as represented on the plate, under the bark of trees, and even in old bones. The larvze of these Beetles feed on various substances, chiefly on decaying vegetable matter. One of them, for example, Nitidula grisea, is found about the burrows made by willows MODE OF DETERMINING SPECIES. oa feeding caterpillars. It is a whitish grub, thick towards the shoulder and tapering to the head and tail. The segments are very distinctly marked, and the last segment is armed with two hook-like appendages curving upwards. When it is about to change to the pupal form, it descends the trunk of the tree, and hides itself in the moist earth about the roots; and after it bas obtained its perfect form, it is generally to be found in the crevices of the bark. On Woodeut X. Fig. 5, is shown another of these Beetles, Meligethes eneus. This genus is known by the squared and metallic body, the long elytra, and the third joint of the antenne, exactly as long as the fourth and fifth together. The form of the maxilla is shown gn the same illustration at Fig. 6. Allthe Beetles of this genus are very small, and are invariably to be found in flowers, creeping from their hiding places under the petals when the flower is gathered or shaken. Being very minute insects, a careful examination with a some- what powerful lens is needed to distinguish the species, and, even then, the little creatures are so like each other in size and colour, that the entomologist is obliged to abandon the nsual mode of determining species, and to trust to the wumber of notches in the tibiz of the first pair of legs. This species is variable in colour, being blue-black, violet, or dark green-blue, over which is a sort of brassy gloss, It seldom exceeds the twelfth of an inch in length, and is a very good example of its genus. It is plentiful throughout Eng- land. Stitt keeping to the same family, we take another of the sub-families, the Ipsina, which have the front of the head lengthened and covering the labrum, the fourth joint of the tarsus being very minute. Our first example of these insects is Rhizophagus ferrugineus, which is shown on Woodecut XI. Fig. 1. These Beetles have much narrower bodies than the preceding, the antennz are short and boldly clubbed, with a large basal joint. The head is not sunk in the thorax, and the elytra are not so long as the abdomen. They are mostly to be found under the bark of trees, but some are fond of inhabiting old bones, and are even parasitic in ants’ H 2 100 INSECTS AT HOME. nests. The name I?hizophagus signifies ‘ root-eating, and there are about ten British species. Though they are for the most part vegetable-feeders, some at least of the species are known to be carnivorous, and have been detected in eating the larve of other bark-feeding Beetles belonging to the genus Hylesinus. 1. Rhizophagus ferrugineus. 2. Colydium elongatum. 3. Anommatus duodecim-striatus, 4, Cryptophagus pilosus. 5. Mycetophagus quadripustulatus. 6, Dermestes murinus, a. Rhizophagus, antenna. 6. Colydium, antenna. c. Anommatus, antenna. d. Der- mestes, pupa. e. Colydium, larva. J. Dermestes, larva. g. Cryptophagus, antenna, h. Mycetophagus, antenna, 2. Dermestes, antenna, The colour of this species is smooth shining rust-red, some- times deepening into reddish-black. There is a pit on either side of the head, the elytra are thickly punctured and striated, and beneath it is rust-red. This Beetle has been , chosen because it is the largest of the genus, sometimes exceeding one-sixth of an inch in length. The rather peculiar antenna of this genus is shown at Fig. @ of the same woodcut. THE BLIND BEETLE. 101 Tux family of the Colydiide have the antenne nearly straight, and not bowed as in the preceding family, and the tarsi are four-jointed. Most of them are found in wood, but they may be found among grass heaps, in sandy places, and other localities. One of the most curious examples of this family is the insect which is represented on Woodcut XI. Fig. 2, and called by the name of Colydium elongatum. A glance at the figure will show the appropriateness of this name, the whole body, and especially the abdomen and elytra, being elongated in a most extraordinary manner, really looking as if the Beetle had been drawn out like wire. The colour of this curious Beetle is smooth shining-black, the elytra being reddish at the base, and deepening into black at the apex, near which is an oval reddish spot, varying in colour and size in different specimens. This insect lives chiefly in the burrows of wood-eating Beetles, especially those of Sinodendron or Hylesinus, and therefore is so seldom seen that it is considered a valuable addition to the cabinet. But, when one of its haunts is detected, a number of the Beetles can generally be found. Mr. Ingall, for example, took a quantity of these insects out of an old elm rail near Sydenham. By some authors the generic name of Nemosoma is prefixed to this Beetle. This is a very appropriate name, signifying ‘ thread-bodied.’ It is the on!y British species of its genus. The larva of this Beetle is shown at Fig. ¢ on the same woodcut. Mr. Westwood went to visit the elm rails at Syden- ham, and there succeeded in procuring many examples of larvee and perfect insects. He remarked that the perfect insects were sluggish during the day, but that at night they became more active, trying to bite each other if they met. The larve, like many other creatures which inhabit burrows, can run backwards as easily as, they can forwards, and this they do by means of a clasper on the end of the body. They are sluggish except when excited, and then move about very much after the manner of the Rove Beetles, moving their head from side to side, and opening their strong jaws as if in menace. ANnoTHER member of this family is remarkable for being without eyes. This is Anommatus duodecim-striatus, which 102 INSECTS AT HOME. is shown on Woodcut XI. Fig. 3. It is the only British species of its genus. This tiny Beetle is about the fourteenth of an inch in length, and may be found in stores of flour and rice, especially the latter, from which fact some entomologists infer that it has been imported into England, and is not an indigenous British species. Its colour is warm-chestnut, and its body is very smooth and shining, but deeply punctured, and the elytra are regularly striated. The generic title Anommatus signifies ‘eyeless, and is given to the insect in consequence of the entire absence of eyes, so that it really deserves the name of Buinp BrrtLte. Perhaps the reader may remember that several other orders of insects afford examples of eyeless species, especially among the exotic ants. Tue family of the Cryptophagid will be represented by one example. In all these little Beetles the antennz have eleven joints, and «re boldly clubbed at the end. The elytra are not truncated, and the cox of the first and intermediate pair of legs are ylobular, while those of the hind pair are cylindrical. The 1ame of Cryptophagidz is given to these Beetles because they feed mostly on cryptogamous plants, especially the fungi. Like the last family, the species are very much like each other, and require much care before they can be ascertained. In examin- ing the details of all these minute Beetles, I have found a compound microscope with a two or one-and-a-half-inch object- glass better than an ordinary pocket lens, but a Coddington lens will answer nearly as well in experienced hands. One example of this family is Cryptophagus pilosus, which is shown on Woodcut XI. Fig. 4, and the form of the antenna is shown at Fig. g. The genus is known by the shape of the margins of the thorax, which are more or less toothed. The present species is oblong, and its colour rust-red, the surface of the body being sparingly covered with very fine down. The thorax is thickly punctured, especially on the disc. In this Beetle the marginal toothing of the thorax is not so conspicuous as in most of the species, and is rather undulated than toothed. It is to be found in and about fungi. There are about seven- teen species of this genus. THE BACON BEETLE. 103 Tue next family is called Mycetophagi, a word having much the same signification as that of the last family, the Greek word Myces signifying a fungus, especially the kind of fungus that grows on tree-trunks. The insects of this family are rather convex-bodied and oval, and covered with a delicate down. The tarsi have four joints, except in the males, which have vhe tarsi of the first pair of legs only three-jointed. Our example of this family is taken from the typical genus, and is known by the name of Mycetophagus quadripustulatus, a figure of which is given on Woodcut XI. Fig. 5. The genus is distinguished by the shape of the thorax, which is as wide at its base as the base of the elytra, the margins of the thorax and elytra forming one continuous line without any division. The club of the antennz is rather long and composed of five joints, the last joint being egg-shaped, and the four others short and dise-like. The antenna is shown at Fig. h on the same wood- cut. Six species are known in England. This really seems quite a large insect when we compare it with some of those which have lately been described, as it sometimes reaches a length of a quarter of an inch. The head of this Beetle is reddish, and the antennz are black in the middle and red at the tip. The thorax is black, narrow in front and broad behind, with rather sharp posterior angles, and a rounded pit on each side towards the base. The elytra are black, and on each of them are two reddish-yellow spots, one at the base, and a smaller one over the apex. Some specimens have the smaller spot so pale as to be scarcely visible, while in others the two spots are united by a streak of pale yellow. This is a very pretty little Beetle, and easily to be found when the searcher knows where to look for it. The interior of fungi, rotten wood, sad similar localities are the dwellings of this Beetle, which may be found in perfection about the middie of summer. Asa rule, all these fungi-loving Beetles are in good preservation when captured, as the nature of their habitations shields them from injury. Tue next family, the Dermestide, is a very interesting one to the entomologist, although he can but hold its members ip bitterest hatred. The word Dermestes is of Greek origin, and signifies ‘skin-eater.’ The name is but too appropriate, as all 104 INSECTS AT HOME. possessors of zoological collections know to their cost. It is the Dermestes which forces taxidermists to use the dangerous arsenical soap in their preparations, and it has been the means of depriving many a hard-working man of his best teeth, the arsenic loosening them so that they fall out almost at a touch. By way of a set-off, it is the Dermestes which drove the late Mr. Waterton to the invention of his wonderful mode of taxi- dermy, in which no arsenical soap is used, but by which the skin is rendered so hard and elastic, that it is able to retain the form of the animal without having a wire, a piece of wood, or even a pinch of cotton wool inside it. Full many a valuable museum has been utterly ruined by these destructive Beetles, which, even when the skin is poisoned with arsenical soap, will attack the hair or the feathers, and strip the creature as bare as if it had been shaved. Moses Harris, the old entomologist, mentions that he found these Beetles alive in the body of a living Eyed-hawk Moth. This family is distinguished by their short, straight, and doubled antennz, their small and retractile head, the five- jointed tarsi, and the length of the elytra, which cover the abdomen. In the typical genus, the antenne are shorter than the thorax, and the club is egg-shaped, as seen at Fig. 7 on Woodecut XI. The palpi are thread-like and shorter than the maxille, and the first joint of the tarsus is shorter than the second. For illustration of this genus I have selected the well-known Bacon Burris (Dermestes lardarvus), which is shown on Woodcut XI. Fig. 6. This is really a pretty, though not gailv coloured, Beetle, its body being black, and its elytra having a very broad greyish band across the base, on which are three black or pitchy spots. On examination with a lens, the band is seen to be composed of a short but thick grey down, the black spots being simply places on which the down does not grow, so that the black of the elytra is rendered visible. This Beetle may be found plentifully in the ‘ keepers’ trees’ which have already been mentioned ; and even after the animals have been so dried by exposure that their skins are as hard as horn, the Dermestes will attack them, its sharp teeth enabling it to overcome the hardened skin. The chief havoc caused by this Beetle is due to the larvae, one of which may be seer THE PILL BEETLES. 105 figured on Woodcut XI. Fig. f. Its colour is whitish-brown above and white below, and it is profusely covered with long hairs. The cast skins of these larvee may be seen abundantly when the Beetle has taken possession of any place, and by them the museum owner is,often warned of the danger which has come on his collection. The reader will see that, like many other destructive insects, it is most valuable in its right place, and does good service by removing from sight objects which are not only unpleasant to the eye and nostril but injurious to the health. In these places it should be protected and en- couraged ; but when it makes *+s way into a house, extermina- tion is the only course to be ured. WE now come to the Byrrhida, or Pill Beetles, so called from their rounded shape, and the manner in which they can hide their limbs and antennz when alarmed. There is no difficulty in distinguishing Beetles belonging to this family. The an- tenn are gradually thickened towards the extremity, and the head is very small and deeply sunk in the thorax, with which it can be completely retracted in most of the species. The machinery by which the legs are packed up is extraor- dinary, and this alone would serve to indicate the family. On the tibiz there is a groove in which the tarsi are received when doubled, the tibize fold closely to the femora, and the whole leg, thus reduced into a very small compass, is received into a groove under the body. In fact, the legs are packed up very much like the joints of a portable easel. The head being at the same time withdrawn into the thorax, the antenne lie pressed closely against its sides, so that when the Beetle has thus packed away all its limbs, it does not bear the least re- semblance to an insect. This mode of concealment, or rather of evasion, is rendered more perfect by the fact, that the surface of the body is covered with fine down, which retains the dust of the roads on which it so often travels, and gives to the Beetle the aspect of a little round dusty stone. And, so pertinaciously does it keep this attitude when alarmed, that it will suffer its limbs to be torn from its body rather than give the least sign of life. The typical genus has the antenne rather flattened, and shorter than the thorax, the basal joint being large, the second / 106 INSECTS AT HOME. small and globular, and the third long and slender. The club is formed by a series of joints regularly increasing in size, the last joint being egg-shaped. One of these antennz is drawn on Woodcut XII. Fig. a. The thorax is waved behind, and the body is very convex. . The species which has been chosen for illustration is the Banprep Pint Bertie (Byrrhus fasciatus), which is drawn on 1. Byrrhus fasciatus. 2. Elmis eneus. 3. Heterocerus flexuosus. 4, Hydroéus piceus, male. a. Byrrhus, antenna. 6. Elmis, antenna. c. Heterocerus, antenna. d, Hydrous, fore leg of female. e. Hydrous, antenna of male. $f. Hydrdéus, larva. Woodcut XII. Fig. 1. The colour of this Beetle is black, the thorax having a decided golden tinge. Upon the elytra are a number of very short black stripes, and in the middle is a reddish-yellow band, shaped as is seen in the figure. This is a tolerably plentiful species, though it is not so often found as the Common Prt Beurtzy (Byrrhus pilula), which is without HOW TO CATCH THE BANK-SIDE BEETLES. 107 the yellow band across the elytra. Five species of this genus inhabit England. Tue next family is the Heteroceride, which have the an- tenn short, with a long flattened club of seven joints, as may be seen by referring to. Woodcut XII. Fig.c. The legs are evidently adapted to burrowing in the earth. The body is flat, broad, and covered with a thick silken down. They are all frequenters of the water, and live in burrows which they excavate in the damp soil. There is only one genus in this family, containing seven species, of which our example is Heterocerus flecwosus, which is drawn on Woodecut XII. Fig. 2. This insect is yellowish or dun-coloured, very finely punctured, and covered with down. Along the elytra is a wavy or flexuous stripe composed of black spots irregularly disposed, a mark from which the Beetle derives its specific name of flexwosus. Towards the shoulders there is a biack spot, and another in the middle towards the suture, the latter not being so dark or well-defined as the former. It is a water-loving Beetle, and has been taken on the banks ‘of the Thames, near Gravesend. Mr. Stephens remarks, that to obtain any of the Beetles of this family is a very easy pro- cess. All that is required is, to go to the bank of some river —tidal rivers are the most frequented—and then to stamp and trample on the muddy bank. The little Beetles are alarmed at the turmoil overhead, and come out to see what is the matter, when they can be captured. The insect-hunter must, however, be very quick in seizing them, as they are back again almost immediately, or hide themselves in crevices where their tiny bodies cannot be seen. Lixr the preceding Beetles, the Parnide are water-lovers, and some of them prefer to live under the water rather than above it. The head is sunk into the prosternum, and the anterior segments of the abdomen are fixed together and im- movable. They are divided into two sub-families, the Par- nina and Elmina, which may easily be distinguished by examining the coxe of the front pair of legs. In the Parnina they are cylindrical, and in the Elmina globular. One ex- ample of this family is taken from the latter sub-family, and 108 INSECTS AT HOME. is called Elmis wneus. One of these Beetles is shown on Woodcut XII. Fig. 2, and the antenna is drawn at Fig. b of the same illustration. All the species belonging to this genus, of which five British examples are known, are very curious insects. They are plen- tiful and yet are seldom found, and, indeed, are hardly ever found except by those who know where to look for them. In the first place, they are small, and would escape observation, and in the next they are subaquatic in their habits, not swim- ming about conspicuously like the Hydradephaga, but clinging to the under side of submerged stones in swiftly-running streams. Most aquatic Beetles prefer still water, but the stream can never be too swift for the Elmis Beetles, which will even select a waterfall as their place of residence. The present species is the commonest of the genus. As may be inferred from its specific name, the surface of the insect has a brassy gloss. The thorax is squared, very convex, and on either side of the disc is an elevated straight line. The elytra are striated and punctured, and the under surface of the body is clothed with thick golden down. Besides the characteristics already given, the last joint of the tarsi is very long, and armed with two large, sharp, and curved claws, by means of which they are enabled to retain their position on the stones in spite of the rushing water. It is rather remark- able that, although the upper surface of the body is very smooth, and the Beetles pass the greater part of their time submerged in rapid streams, the body is often so caked with mud that the shape of the insect is nearly obscured. Now we come to a very familiar but little understood insect, popularly called the Buack Warer Brreriz. Like some of the preceding species, it has been confounded with the Hydradephaga, merely because it inhabits the water, no re- ference being made to its structure, or even its mode of feeding. Indeed, I believe that scarcely any, except entomo- logists, have the least idea that the Dyticus and the present Beetle are not the same insect, the only difference being that one is much larger than the other. Now, if we examine this Beetle, Hydrous piceus, we shall find a vast number of strue tural differences, as well as complete divergence in habits. THE BLACK WATER BEETLE. 109 The Beetle belongs to the family of Hydrophilide, i.e. water-lovers. Sometimes the two halves of the word are transposed, the Beetles being called Philhydrida, the significa- tion being exactly the same in both cases. The family may be known by the size of the palpi, which are as long as the antennz and sometimes longer—the latter organs never having more than nine joints, and sometimes only six—and by the double lobe of the maxilla and the very short mandibles. The tarsi have five joints. The typical genus has the mandibles armed on the inside with three strong teeth, notched at their tips; the second joint of the maxillary palpi is very long, and the elytra become narrower towards the apex. The insect is represented on Woodcut XII. Fig. 4, of its natural size, showing that, with the exception of the Stag Beetle, it is our largest coleopterous insect. A glance at the figure will show one of the principal peculiarities of this Beetle, namely, that the palpi far exceed in length the an- tenn, and project in front considerably before those organs. The sexes are easily distinguished by a glance at the antennae, and the tarsi of the first pair of legs. The antenna of the male is drawn on the same woodcut, Fig. e, and in the same sex the last joint of the front tarsi is very much dilated, and assumes the form of a partly flattened triangle. The same limb in the female does not possess the widened joint, and may be seen by reference to Fig. d. The metasternum terminates in a sharp spine, so long that its point reaches beyond the coxe of the last pair of legs. The colour of this Beetle is smooth blackish-olive, the margins of the elytra taking a bluish tinge. The wings them- selves are very large, and have a very fine effect when spread. On each of the elytra are eight striw, and the breast is clothed with thick yellow down. The metasternum is developed, as in the Dyticus, into a pointed process, but in this insect the weapon is simply needle-shaped, and is about the size of an ordinary darning-needle. It is black, highly polished, and very sharp. There is much variation in tint in different individuals, but the average hues are as given above. The life history of this insect is a very curious one. The female Beetle is furnished with a complete silk-spinning appa- ratus, the spinnerets being placed, not in the mouth, as is the 110 INSECTS AT HOME. case with the silkworm, but at the end of the tail. With these instruments she forms a cocoon shaped almost exactly like a turnip, being round, and having a pointed projection from one side. Within this cocoon, which soon becomes hard and water- tight, and is fastened to the stem of a water-plant, the eggs are placed; and in a time varying from a fortnight to six weeks, according to the warmth of the weather, the larve are hatched. About fifty or sixty eggs are placed in one cocoon, and by this extraordinary provision they are preserved from harm until the larvee are able to escape into the water and shift for themselves. They are very small at first, but rapidly increase in size until they attain the length of three inches. One of these larve is shown at Fig. f, and is represented as partly grown. It is soft, fat, and dusky in colour, and feeds voraciously on molluscs and other aquatic animals, as might be inferred from the large and curved jaws. It is one of the air- breathing larvee, and is therefore obliged to come frequently to the surface in order to take in a supply of air, which is done by means of a filamentous appendage at the end of the tail. Somewhere about July the larva has completed feeding ; and then leaves the water and crawls up the bank, searching for a soft spot in which to burrow. Here it sinks its tunnel, and forms an oval cocoon, in which it awaits its change into the pupal state. The Beetles belonging to this group, being, like the larve, air-breathers, are forced to come to the surface for the purpose of respiration ; and they contrive to carry down a supply of atmospheric air by enclosing a bubble under the bodies, where it looks like a globe of quicksilver as they swim about. As this species is not only handsome but harmless, it is in great favour with the keepers of aquariums, and is in consequence quite scarce in many places where it used to be plentiful, the professional dealers having ransacked all the streams within easy reach of London. Tuer family next in order, the Sphzridiide, are distinguished from the preceding family by the shape of the tarsi, which are not fitted for swimming, and the hinder pairs of which members have the first joint much longer than the others. They are all small insects, rather globular in form, from which peculiarity THE CERCYONS. 111 the name of the family is derived; and they are dark-coloured, black being the usual hue, relieved in some species by reddish spots. In the genus Cercyon, from which our example is taken, the club of the antenne is large and bold, the palpi are slender, and the mentum is broad and flat. As is the case with most red and black Beetles, the colour is exceedingly variable in different individuals, so different indeed, that the present. species, Cereyon anale, which is drawn on Woodcut XIII. Fig. 2, has been described under four separate names, each name being used to represent a different species. Its colour is black, but the elytra are generally tinted towards the apex with reddish-chestnut, the size and exact tint of this mark varying exceedingly; and in some specimens the elytra are altogether black. Like the rest of the genus, it can be found in cowdung. Formerly some sixty species of Cercyon were catalogued, but they have now been reduced to seventeen genuine species ; two- thirds of the imagined species proving, on careful investigation, to be nothing but varieties. In one case, that of Cercyon nigriceps, the same insect had been described under seven different names by the same naturalist. CHAPTER VII. LAMELLICORNES. Tus chapter will be given to that very important group of insects, the Lametiicorn Beetles, popularly called Cnarmrs. The former term is composed of two Latin words signifying ‘Jeaf-horned,’ and is applied to these Beetles because the club of the antennz is composed of a series of flat plates or leaves, which are movable like the*rays of a fan, except in the Stag — Beetle and its kin. The antenne are always short, with a long or large basal joint, and set near the eyes and in front of them. If the reader should have skill to open an insect, he is strongly recommended to do so, in order to see the singular manner in which the large and apparently heavy bodies of these insects are lightened by a great number of air-vessels connected with the breathing tubes. These air-vessels extend all over the body, and are found even in the head. The larve are fat, fleshy, soft-skinned grubs, feeding on vegetable matter, mostly, though not always, in a state of decay; and the last segment of the body is much larger than the others. After they are full-fed, they make cocoons from the chips of wood or other fragments of the material on which they have been feeding ; and therein await their change into the pupal and perfect form. Tux first family of the Lamellicornes is the Cetoniide, or Rose Beetle family. We have but few examples of these beautiful insects in England, and one or two of them are very rare. In this family the antenne are short, and have only ten joints, three of them forming the club. The body is broad, and the elytra are flattened and not quite long enough to reach the end of the abdomen. A very familiar example of this family is given on Plate V. Fig. 1, namely, the common Rosk BrEt.e (Cetonia aurata). KING OF THE ANTS. 113 In this genus there is a curious structure of the epimera, or side pieces, of the metathorax, which are largely developed, so that they act upon the bases of the elytra, and prevent the insect from opening them widely. Any of my readers who has watched a Rose Beetle flying must have noticed that, although the wings are very ample, the elytra are scarcely opened at all, so that they cover some portion of the lower wings; whereas Beetles generally hold the elytra well elevated, and out of the way of the wings. The edges of the elytra are deeply waved in this genus. This is a truly handsome insect. The upper surface of the body is beautiful shining-green, glossed with gold. The elytra have a number of impressed dots and curved marks scattered irregularly over them, and towards the apex are a nwmber of scattered whitish marks, very variable in size, hue, number, and shape, according to the individual insect. Below, it is bright polished-copper. The perfect Beetles are generally to be found in roses, especially the white and wild roses, which they are thought to damage in some degree. Gardeners have an objection to these Beetles, because they are apt to settle upon the flower of the strawherry, and devour just those parts by which the fruit is produced. In the south of “ngland, the privet blossom is a favourite resort of these Beetles. The larva, however, does not content itself with such light diet as rose-leaves, but lives on the less poetical but more substantial nourishment afforded by decaying wood, in which it remains for three years. One of these larve is shown on Plate V. at Fig. 6, as it appears when occupying its dwelling among the debris of rotten wood at the roots of the tree. As may be seen by reference to the plate, it is by no means an attractive-looking creature, and gives no sign of the magnificent colours which its fat, soft, wkite body will soon develope. Sometimes, on opening a wood ant’s nest, one of these larve is found in it, a circumstance which has gained for it the name of King of the Ants. It most probably takes advantage of the large quantity of wood-chips, bits of straw, fir-leaves, and similar material, with which the ants make their nest; and finds therein an abundant supply of food. The ants do not I 114 INSECTS AT HOME. meddle with it, probably finding that it remains in one spot. and does not interfere with the conduct of their nest. The reader will notice that the larva is represented in a curved attitude. This is done because it is the natural, and indeed the needful, attitude of these larve. Their legs are so small, and the end of the body is so large, that they cannot support themselves by their legs; and, if laid on a flat surface, immediately roll over on their'sides. This clumsiness—if we may so call it—of form is not peculiar to the Rose Beetle, but is found in all the group. After it has remained in the larval state for the full period, it makes for itself a cocoon from the wood-chips or other materials on which it has been feeding; and it sometimes happeng that when a decayed tree-trunk is suddenly blown or cut down, a great quantity of these cocoons roll out from among the ruins. Even when the larva has taken up its abode in an ants’ nest, it makes a cocoon from the surrounding materials. A group of these cocoons is shown on the same plate, Fig. 7. A somewhat similar but rarer Beetle also inhabits England. Itis called Gnorimus nobilis, and may at once be recognised by a glance at the elytra, which are not waved at their edges. Otherwise, in habits, colour, and general shape, it is very much like the Rose Beetle, and the body is shining green-gold. The elytra, however, are wrinkled, and there are white spots scat- tered over them. There are also white spots on the edges of the abdomen, and the breast is covered with hairs. It is generally found on umbelliferous flowers. Wer must say a word or two respecting the well-known insect, the Phyllopertha horticola, which is called indifferently Bracken Crock or Junr Bue, and is known to anglers by its old Welsh name of Cocn-y-Bonpuu, often corrupted by them into the rather ludicrous word Cockerbundy. It is about half an inch in length, and has reddish-brown elytra and dark-green head and thorax. It is found in ‘great abundance—often too great abundance for any except anglers—busily engaged in devouring the leaves, blossoms, and even the young fruit of our orchard-trees. In its larval state it does much harm to the grasses, of which it devours the roots, much after the fashion PLATE V-. CHAFERS. Cetonia aurata. . Melolontha vulgaris (Male). . Geotrupes stercorarius. . Lucanus cervus. Lucanus cervus, larva (very young). . Cetonia aurata, larva (three parts grown). . Cetonia aurata (Pupa cases or Cocoons). . Geotrupes stercorarius, larva (young). . Melolontha vulgaris, larva (three parts grown}. Oo CO ID OP OO dD PLANT :— Wild Rose (Rosa cantna). i ) : q / : ‘i ah . i | | v a L } ) : | (| i i | ma | THE COMMON COCKCHAFER. 115 of the cockchafer grub, whose ill deeds will presently be recorded. The insect belongs to the family Rutelide, the members of which have strong, horny mandibles, those of the preceding family being only horny on the outside; and, besides these differences, the elytra are lined with a membrane which projects a little behind. In the genus to which we are re- ferring, the antenne have nine joints, the clypeus is short, and the thorax is narrowed behind. The name Phyllopertha is composed of two Greek words, signifying ‘ leaf-destroyer,’ and is very appropriately given to this insect, on account of the ravages which it makes among the leaves of fruit-trees. The specific title of horticola is formed from two Latin words, and signifies ‘ garden-frequenting.’ Next we come to the small though important family of the Melolonthide, which includes those insects which are popu- larly called Cockchafers. Only five species of this family in- habit England, and of these only two are even tolerably common. These two, however, more than compensate by their enormous numbers for the paucity of the other species; and in some seasons are so exceedingly plentiful that they become an absolute pest to the agriculturist, laying waste thousands of trees, and de- stroying acre upon acre of pasture land. The family of the Melolonthidz have very strong mandibles, as is evident from the havoc which the insects make among leaves, and the outer lobe of the maxille is strongly toothed. In the -typical genus, the antenne are ten-jointed, and the club of the male is composed of seven joints, while that of the female contains only six. The flattened plates of the club are much smaller in the female than in the opposite sex. On Plate V. Fig. 2, is shown a male specimen of the common Cocxcnarer (Melolontha vulgaris) crawling to the trunk of a tree. The insect is so well known that a detailed description is scarcely necessary. The peculiar bent projection at the end of the abdomen is worthy of notice, as are the rows of triangular white spots along its sides. There is a greyish down on the breast, and the elytra are covered with a yellowish down. Unless the insect have quite newly emerged from the pupa! state and been handled very carefully, the down is sure tu be 12 116 INSECTS AT HOME. rubled off, and the beauty of the specimen greatly impaired ; so that a really perfect specimen even of so common a Beetle is worth having. The life history of this insect demands a brief notice. The female deposits her eggs in the ground, where in due time they are hatched, and straightway begin to feed upon the roots of grass, which form the chief part of their diet. They remain in the ground for three years, continually destroying grass-roots, and increasing to a wonderful size ; so large and fat, indeed, that their tightened skin seems scarcely able to hold its contents. And when they are dissected, it really seems still more wonderful that they should not have burst with sheer fat and gorging. I have opened numbers of them, and found them more trouble- some than any other larve, the quantity of fat being so enor- mous that the spirits of wine in which they were sunk had to be changed over and over again before it was sufficiently clear to allow the structure to be seen. Then, even when that diffi- culty was overcome, another remained, for the whole of the stomach and intestines was so crammed with a mixture of grass- roots and earth, that it looked like a well-stuffed and very black sausage, with a very thin skin. The quantity of roots consumed by one of these insects is very great; and in some places they have so completely destr.yed the grass, that the ° turf has been completely detached from the ground, and might be rolled up by hand as easily as if the turf-cutter’s spade had passed under it. These mischievous grubs do not confine themselves to grass-roots, but eat many of the underground crops, the potato often suffering terribly from them. “One of these larve is shown on Plate V. Fig. 9, as it appears when about one-third grown. . I believe that the rooks are our best friends with regard to this grub—technically known as White-worm in some parts of England. They seem to be able to detect the presence of the grub by hearing its teeth at work on the grass-roots, and then, pecking a hole with wonderful rapidity, they drag out the grub and take it home to their young. The rooks, in fact, aid us in ridding our grass lands of the White-worm just as do the starlings in destroying the larve of the daddy-long-legs. When full-fed, the grub makes for itself a cocoon in the earth, and then emerges, only to work as much destruction PROJECTS FOR UTILISING THE COCKCHAFER. 117 above the soil as it did below. In the larval state it fed upon the roots of grasses, and was out of sight; it now feeds on the leaves of trees, and is out of reach. In this way the Beetles are scazcely less mischievous than they were in their former state, for they will sometimes denude whole tracts of trees, so that, in the full beauty of summer-tide, the trees look as if the season were the depth of winter. In this country we are almost ignorant of the harm which the Cockchafer can do, for, although our crops and potatoes often suffer severely from its attacks, they are not wholly ruined, as is the case on the Continent. In consequence of the noxious character of this Beetle, I never had the least seruple in killing it, and can strongly recommend it to my readers as an excellent ‘subject’ for the study of insect anatomy. Thus a double service is rendered: first to the country by its death, which prevents it from perpetuating a nu- merous progeny ; and next to the investigator, because it affords him a subject which will train both the hand and the eye, and which can be so easily obtained that he need not be afraid of spoiling a few specimens. Although this Beetle is at present nothing but an unmitigated pest, I cannot but think that it may yet be made to turn to the service of man. I should not wonder if the silkworm were originally a great plague to gardeners until its real value was discovered, and so it is not utterly impossible that some mode may be found of turning the Cockchafer to account. At present it is but of little use to man. It is employed rather largely during its brief existence in the Beetle state as bait for sea-fish, and there has been an attempt made to procure a sort of coarse oil from the tat bodies of the erubs. Some utilitarians, of abnormal boldness, have proposed that 11 might be prepared as an article of food, and have sug- gested that it may be thought as much a delicacy as is the palm- worm of the West Indies. But they entirely forget that the palm-worm lives in the interior of trees, and that it contains nothing but vegetable matter, whereas a full-grown Cockchafer grub contains a full thimbleful of earth, a substance which no amount of cooking could.render palatable. Tue family of the Geotrupide has eleven joints in the an- tenna, of which three form the club, and the margin of the head divides the eyes somewhat like the structure of the 118 INSECTS AT HOME. Gyrini, except that, in the case of those insects, the eyes are divided by a broad, flat band, and in the present family by a narrow ridge of horny substance. The body is very convex and the thorax large, in order to give room for the muscles that move the large wings and the powerful digging fore-legs. Three genera of Geotrupide exist in England, two of which will be illustrated by examples. On Plate V. Fig. 3, may be seen one of the commonest English species, represented as crawling up the trunk of a tree. This is the Geotrupes stercorarius, popularly known as the Dor Brrr, the Frying WatcHMan, the DumBiE-por, and similar names, according to the locality in which it lives. The genus Geotrupes has the basal joint of the antenna rather long, and the fourth joint shorter than the fifth, the body very convex, and the basal joint of the tarsus is the shortest. The generis name Geotrupes is formed from two Greek words, signifying ‘ earth-digger,’ and, as we shall presently see, is a very appropriate one. The colour of this species is black above, sometimes glossed with green or blue, and rich shining-violet beneath. On the middle of the clypeus there is a sharp tubercle. The thorax is smooth, except at the margins, which are thickly punctured, and on each side there is a nearly circular im- pression, thickly punctured in the interior. The middle of the scutellum is punctured, and the elytra are striated, the spaces between the striz being smooth. The sexes may be distin- guished by means of the tibize of the first pair of legs and the femora of the hind pair, the male having on the inner side of the front tibia a single erect spine, and the inner edge of the hind femora strongly toothed. As this insect is hable to much variation in colour, it is necessary to call attention to these minute points of structure by which the species can be definitely ascertained. The life history of this Beetle may be briefly told as follows:— In the autumn evenings the Beetles may be seen flying about in large circles, as if they were predacious insects quar- tering the ground in search of prey. In one sense, this is exactly what they are doing, as they are hunting after a fa- vourable spot wherein to place their eggs, and are wheeling over the ground in hopes to find one. Attracted probably hy the scent, LABOURS OF THE DOR BEETLE. 119 the Beetle discovers a patch of cowdung, alights near it, crawls upon it, and straightway burrows through the soft material, and is lost to sight. When she—for it is the female who does the work—reaches the earth, she does not cease to burrow, but goes on with her labour until she has excavated a perpen- dicular tunnel some twelve inches in depth, and carried a quantity of the cowdung into it. In this substance she de- posits an egg, crawls out of the burrow, and proceeds to make another, and so goes on until she has laid all her eggs. The egg remains in its concealment until it is hatched, and then the larva consumes the food which its mother has taken the trouble to bring down for it. After this is eaten, the grub is strong enough to ascend the burrow and obtain as much food as it wants at the entrance. Within this retreat the larva passes through its transformations, and then ascends to the outer air, ready to take its part in the work of preparing nurseries for a future progeny. Five species of Geotrupes are known in England. Twice as many species have been described, but recent investigations have shown that exactly half the supposed species were simple varieties. On Woodcut XIII. Fig. 1, is represented a Beetle of a very odd appearance, the sides of the thorax being prolonged into a pair of very formidable horns, a shorter horn occupying the centre of the anterior margin. This is the male Typhwus vulgaris, the only British example of the genus. The female has only the veriest rudiments of horns, the anterior angles of the thorax being merely developed into a short, sharp pro- minence, like the teeth of a saw, while the place of the centra- horn is taken by a ridge running across the forehead. Indeed, owing to the absence of these horns, the female is so unlike the other sex, that no one who was ignorant of entomology would be likely to believe the two creatures to be nothing more than different sexes of the same insect. The female so closely resembles the ordinary Dor Beetle, that the older entomologists comprised the Typhcus within the genus Geo- trupes. The name of Typhceus was given to this genus in the days when classical mythology was the source of new names for insects, and to this genus the name of Typmwhus was given on 120 INSECTS AT HOME. account of its menacing aspect, which was fancifully compared to the giant Typhceus, who frightened Zeus and the other gods out of heaven merely by his looks. As, however, was the case with its ancient prototype, the Typhceus is not nearly so terrible as it seems, and its array of horns cannot do the least injury to the hands of its capturer. At Fig. b, on the same woodcut, the head of the female Typhceus is shown. 1. Typheeus fumatus, 2. Cereyon anale. 8. Dorcus parallelopipedus. 4, Agrilus bi- guttatus. 5. Elater sanguineus. a. Agrilus, antenna. 6. Typhoeus, head of female. c. Elater, antenna. d. Elater, head, under side. e. Elater, larva. jf. Agrilus, larva. There is no possibility of mistaking this insect, which is the only British example of its genus; which, in addition to the characteristics that have been already described, has the first and last joints of the tarsus of equal length, and longer than the others. The colour of the insect is shining-black, the elytra being regularly but not very deeply striated. ‘Phere is, however, considerable variation in this insect, as even in some | | THE APHODIUS. 12t males the horns are comparatively small, and little better de- veloped than those of the female. The colour also slightly varies, a warm-chestnut tint underlying the black, so that the entomologist ought to procure a series of specimens, in order to show the usual varieties of form and colour. It varies in size as well as in colour, some specimens being five-sixths of an inch in length, while others are barely half an inch long. This extreme difference in size is common among the Lamel- licornes. Considering that the Typhceus is a very common insect, it is surprisingly little known, and I have often found that entomologists who restricted themselves to the Lepidoptera alone have been totally ignorant of its existence, and expressed much surprise when I showed them a fine male Typhcus. This insect is in one sense an extremely interesting one, inas- much as it is one of our few British examples of the strange and almost grotesque forms assumed by male Lamellicornes, but which are seldom seen except in exotic Beetles. This insect may be found in all parts of England: some of those in my own collection were taken near Oxford, and the others in Wiltshire, on the Downs. The end of May and be- ginning of August are the times when it is in best condi- tion, and at the latter season it may often be seen lying dead in roads or pathways. Like the Dor Beetle, it is a burrower, and has been taken while making its tunnel in sand. TueEreE is a large family of small Beetles which must not be - passed over without a brief notice. This is known by the name of Aphodiide, a name formed from two Greek words which refer to the habits of the different species, which are always to be found in cowdung. They are rather oblong and cylindrical in shape, and the elytra cover nearly the whole of the body. Many species are among the commonest of our British insects, and they must be sought in their accustomed haunts if the beetle-hunter wishes to obtain a good series of specimens.