32 BRITISH LEPIDOPTERA. 



77—8 (1844) ; Boh., "Vet. Ak. Hand.," p. 133 (1848) ; Newra., "Zool.," vii., p. 27 

 (1849) ; " Ent.," ii., p. 139 (1865) ; " Brit. Moths," p. 43 (1869) ; Gn., " Ann. Soc. 

 Ent. Fr.," (3), vi., p. 442 (1858) ; (4), viii., p. 405 (1868) ; " Lep. Eure-et-Loir," p. 82 

 (1875); Trim., "Cat. Lep. Gir.," p. 27 (1858); Staud., "Cat.," 1st ed., p. 30 

 (1861) ; 2nd ed., p. 69 (1871) ; " Hor. Soc. Ent. Ross.," xiv., p. 358 (1877) ; Snell., 

 "DeVlind.," p. 185 (1867); Berce, " Eaune Franc.," ii., p. 190(1868); Nolck., 

 "Lep. En. Est].," i., p. 127 (1868); Wallgrn., "Skand.-Het. Ejar.," h., p. 60 

 (1869); Cuni y Mart., " Cat. Lep. Bare," p. 69 (1874); Curd, "Bull. Soc. Ent. 

 Ital.," viii., p.' 150 (1876) ; Erey, "Lep. Schw.," p. 97 (1880) ; Gerh., "Berk Ent. 

 Zeits.," xxvi., p. 127 (1882) ; Lampa, " Ent. Tids.," p. 41 (1885) ; Jordan, " Schmett. 

 N.-W. Deutsch.," p. 96 (1886) ; Hinchliff, "Ent.," xix., p. 272 (1886) ; Battersbv, 

 "Ent.," xx., p. 109 (1887); Riihl, "Soc. Ent.," v., p. 178 (1891) ; . Tutt, " Brit. 

 Moths," p. 54 (1896) ; Reutti, " Lep. Bad.," 2nd ed., p. 58 (1898) ; Agassiz, " Mitt. 

 Schw. Ent. Ges.," x., p. 248 (1900). Bombix, Latr., "Hist. Nat.," xiv., p. 178 

 (1805). Bombyx f-LasiocampaJ , Latr., "Genera," &c, iv., p. 219 (1809); Led., 

 "Verh. z.-b. Wien.," ii. Abh., p. 75 (1853). Gastrupacha, Ochs., "Die Schmett.," 

 iii., pp. 139,266 (1810); x., p. 191 (1834); Evers., "Fauna Volg.-Ural.," p. 154 

 (1844) 5 H.-Sch., " Sys. Bearb.," ii., p. 101 (1847) ; Heyd., " Lep. Eur. Cat. 

 Meth.," ed. 3, p. 26 (1851) ; Speyer, " Geog. Verb.," i., p. 413 (1858); ii., p. 

 288 (1862); Hein., " Schmett. Deutsch.," i., p. 201 (1859); Fuchs, " Stett. Ent. 

 Zeit.," xli., p. 129 (1880); Auriv., " Nord. Ejar.," p. 63 (1889). Pachy gastrin, 

 Hb., "Verz.," p. 186 (? 1822). 



The genus Lasiocampa was used by Schrank {Fauna Boica, ii., pt. 

 2 > PP- *53 — l SS) m a heterogeneous sense, and includes the types of 

 many different genera. It reads as follows : 



Lasiocampa. — Antennas bipectinate ; the pectinations inclined towards one 

 another. Two palpi, shaggy, almost shorter than the nose-shaped frontal tuft. 

 Tongue small. Wings at rest defiexed, pointed-roof-shaped — quercifolia, ilia 'folia, 

 pruni, pini, potatoria, ncbi, querctcs, roboris, trifolii, dumeti, rimicola (~catax, 

 Esp. hi., tab. xvi., figs. I — 5), lanestris, catax, neustria and castrensis. 



By a process of elimination already described {anted, vol. ii., pp. 

 449 — 451) this heterotypical genus has, by the separation of the -species 

 belonging to later genera, at last been retained solely for the quercus 

 group, the latter species having been named by Curtis as the type. 

 Aurivillius, by a method of reasoning quite different from ours, has 

 come to the same conclusion [Ins, vii., p. 149). Since Curtis was the 

 first to restrict Lasiocampa to the querents group, we give his generic 

 diagnosis, which reads as follows : 



Lasioca?npa, Schr., Germ., Leach. — Gast?-opacha, Och. — Bombyx, Linn., Fab., 

 Latr., Haw.— Antennae inserted towards the hind part of the head, nearly straight, 

 setaceous, strongly bipectinated in the males, each branch being ciliated and producing 

 a rigid bristle near the apex, inclining upward ; seriated in the females. Maxillae ami 

 mandibles none. Palpi 2, small, short, hairy; 3-jointed, 1st and 2nd joints robust, the 

 former the longest, 3rd minute ovate. Males smaller than the females. Head short. 

 Eyes small. Thorax large, not crested. Abdomen of the males attenuated ami 

 divided at the apex; robust and subovate in the females. Wings entire, defiexed 

 when at rest. Tarsi 5-jointed. Claws and pulvilli distinct. Caterpillars with 6 pec- 

 toral, 8 abdominal, and 2 anal feet ; cylindrical and hairy, curling themselves up when 

 disturbed. Pupa enclosed in an obtuse oblong cocoon of very close texture. Type 

 of the genus — Bombyx qiterciis, Linn. 



Although Curtis cited quercus as the type of Lasiocampa, he retained 

 medicaginis and trifolii (the type of Hiibner's Pachygastria) in the same 

 genus, whilst Aurivillius {Iris, vii., p. 149) recognising the important 

 structural differences between these and their allies retained the name 

 Lasiocampa in a tribal sense, and grouped {Joe. cit., pp. 150 — 151) 

 the species enumerated therein, according to their peculiarities but 

 without naming the genera thus created. He placed, however, only two 

 species in the same group as quercus, viz., grandis, Rog., and serrula, 

 (in. The former was described l>y Rogenhofer as a variety of J\ trifolii. 



