MACROTHYLACIA RUBI. 125 



Schrank, Germar, and other of the earlier authors in Lasiocamfia, and, 

 in spite of Hiibner having indicated its true position ( Verzeichniss, 

 p. 1 86) almost eighty years ago, modern authors have, possibly 

 largely owing to Staudinger's Catalog having become a basis for 

 makers of modern lepidopterological books on the Continent, united 

 representatives of various genera, tribes, subfamilies and families 

 with it under the same generic title. Rambur, in 1866, correctly 

 created the genus Macrothylacia for rubi, and, later, in 1869, 

 Wallengren, apparently quite independently, founded the genus 

 Lach?wcampa for the same species, the latter necessarily falling as 

 a synonym of Rambur's earlier name. Aurivillius states that, 

 " although Macrothylacia rubi is nearly related to the species ol 

 the genus Lasiocamfa, yet it appears to be more natural to place 

 it in a - separate genus as Rambur and Wallengren have done." 

 He then describes {Iris, vii., p. 152) the genus Macrothylacia as 

 follows : 



Imago : Eyes uniformly haired. The last joint of the palpi shorter and less 

 distinctly deflexed. Nervures 6 and 7 of forewings always distinctly stalked. Basal 

 cell of hindwings shorter, reaches scarcely to the middle of the discoidal cell, and 

 sends out, towards the costal margin, two very strong supplementary nervures, which 

 are simple or forked. The forehead and the front tibiae are, as in division A.a. of Lasio- 

 campa (see antea, p. 2), unarmed. The forewings have two pale transverse lines, and a 

 small central spot or none. <$ antennae with long pectinations. ? antennae with very 

 short pectinations. Abdomen with densely-haired sides and " ausstulpbaren," and 

 usually bent downwards. Larva : The larva has dense long hairs, and is, besides, 

 dorsally clothed with appressed "felt-hairs." All the segments uniformly haired. 

 Head unicolorous, black, without marking. Pupa : The pupa is blackish with 

 brown incisions, and with very short stiff hairs (the leg-, antenna-, and wing-cases are, 

 however, naked). It is longer, narrower, and with a thicker shell than the pupae of the 

 genus Lasiocampa, and rests in a large, long, soft, and semitransparent silken cocoon. 



The further description of the genus would only be a repetition of 

 the special features of the single Palsearctic species in the genus 

 described in detail below. 



Macrothylacia rubi, Linne. 



Synonymy. — Species: Rubi, Linn., " Sys. Nat.," 10th ed., p. 498, no. 14 

 (1758) ; 12th ed., p. 813, no. 21 (1767) ; " Fauna Suec," 2nd ed., p. 292, no. 1103 

 (1761) ; Scop., " Ent. Cam.," p. 197, no. 492 (1763), Mull., "Faun. Frid.," p. 39, 

 no. 351 (1764); " Zool. Dan. Prod.," p. 117, no. 1350(1776); Wilkes, "Nat. 

 Hist.," pi. liv (1773); Fab., "Sys. Ent.," p. 565, no. 35 (1775); " Sp. Ins.," 

 ii., p. 178, no. 51 (1781) ; "Mant.," ii., p. 113, no. 59 (1787) ; " Ent. Syst.," hi., 

 pt. 1, p. 427, no. 65 (1793); [Schiff.,] "Schmett. Wien.," p. 56 (1775) ; Fuess., 

 " Verz.," p. 34, no. 638 (1775) '■> Meyer, " Fuess. Mag.," i., p. 269 (1778) ; Goze, 

 "Ent. Beit.," iii., p. 286 (1781); Esp., " Schmett. Eur.," hi., pi. ix., figs. 1-6 

 (1782), p. 69 (1783); Briinn, "Fuess. Neu. Mag.," ii., p. 71 (1785); Brahm, 

 "Fuess. Neu. Mag.," hi., pp. 141, 149, 157(1787); "Ins. Kal.," p. 197, no. 101 

 (1790); View., "Tab. Verz.," p. 34 (1789); Vill., "Linn. Ent.," p. 122(1789); 

 Bork., " Sys. Besch.," hi., p. 99, no. 27 (1790) ; " Rhein. Mag.," i., p. 364 (1793) ; 

 Don., l - Nat. Hist. Brit. Ins ," ii., p. 87, pi. Ixviii [red. lxix) (1793); Hb., "Eur. 

 Schmett.," hi., pi. xxxix., figs. 174, 281 (? 1800), p. 144 ( ? 1805) ; "Larvae Lep.," 

 iii., Bomb, ii., Vera? P. b. figs. \a-d (? 1803); " Verz.," p. 186 (? 1822) ; Schrk., 

 "Faun. Boica," ii., Abth. 1, p. 274 (1801) ; Abth. 2, p. 154 (1802); 111., "Syst. 

 Verz. Wien.," n. Ausg., i., p. 108 (1801) ; Latr., " Hist. Nat.," xiv.,'p. 181 (1805) ; 

 Ochs., "Die Schmett," iii., p. 270 (1810) ; Germ., " Bomb. Spec," ii., p. 47 

 (1812) ; Oken, " Lehrb. Naturg.," i., p. 708 (1815) ; Leach, " Edinb. Enc," ix., 

 p. 132 (1815); Godt., "Hist. Nat.," iv., p. 134. pi. xiii., figs. 1-2 (1822) ; Curt., 

 "Brit. Ent.," expl.pl. ci (1827); "Guide," p. 142 (1829); Stphs., "111. Haust.," 

 ii., p. 39 (1828); "Cat. Brit Ins.," no. 46 (1829); "List Br. An. Br. 

 Mus.," 1st ed., p. 45 (1850); 2nd ed., p. 42 (1856); Bdv., "Eur. Lep. 

 Ind. Meth.." p. 48 (1829); "Gen. et Ind.," p. 71, no. 579 (1840); Meig., 

 "Eur. Schmett.," ii., p. 202 (1830); Wood, "Ind. Ent.," p. 21, fig. 40 (1839); 



