158 BRITISH LEPIDOPTERA. 



spots are situated in the position of the outer edge of these bluish 

 patches ; the pattern described nearly fills up the dorsal abdominal 

 area, but there is a broad yellow subdorsal band, and below this 

 the yellow and bluish occupy about equal proportions, the blue 

 chiefly above, and the yellow beneath, bat much broken up by 

 being arranged in double oblique stripes. I suspect this bluish 

 was the ancestral tint of the ground colour, and that it has been 

 much encroached upon by the spreading of the yellow (Bacot). 

 Cases of urtication resulting from handling the fullgrown larva of this 

 species are comparativly rare, although South notes (Ent., xviii., p. 5) 

 that, in handling the larva, the tips of his fingers have been thickly 

 felted, and that he has frequently felt a slight itching between his 

 fingers, the hairs not affecting the thicker skin towards the finger-tips. 



The pupa is of typical obtect form, noticeable (in M. rubi) by 

 the brighter coloration of the movable incisions of the abdomen, as 

 well as of the legs, antennae, and mouth-parts. The prothorax and meso- 

 thorax are large, but the metathorax and 1st abdominal segments are 

 very narrow ; the skin is black, finely pitted, and except on the 

 8th and 9th abdominals, where there are some fine black points, 

 is wanting in the covering of bristly hairs which is characteristic 

 of the Eutrichids (sens, strict.), and especially noticeable in Gastro- 

 pacha ilicifolia and Eutricha quercifolia, and hence we find none of the 

 collection of hairs, dust, &c, on the Cosmotrichid pupa, a feature most 

 marked in Eutricha (quercifolia) and Gastropacha (ilicifolia); the rounded 

 cremastral area is, however, covered with short golden-brown bristles. 



The cocoon reminds one something of that of Malacosoma, probably 

 because of its yellow coloration, spindle shape, and thin parchment-like 

 appearance, but is otherwise, in general shape and form, that of an 

 Eutrichid, although almost entirely lacking the thick mass of felted 

 hairs woven into the walls of such cocoons as those of Gastropacha 

 (ilicifolia) and Eutricha (quercifolia). 



COSMOTRICHE POTATORIA, Linne. 

 Synonymy. — Species : Potatoria, Linn., " Sys. Nat.," xtb ed., p. 498 (1758) ; 

 xiith ed., p. 813 (1767); Poda, "Ins. Mus. Grsec," p. 84 (17611; Mull., " Fn. 

 Frid.," p. 40 (1764) ; " Zool. Dan. Prod.," p. 117 (1776) ; Hufn , " Bed. Mag.," ii., 

 p. 398 (1766) ; Fab., " Svs. Ent.," p. 564 (1775) ; " Spec. Ins.," ii., p. 176 (1781) ; 

 "Mant. Ins.," ii., p. 112 (1787) ; " Ent. Svst.," iii., 1, p. 425 (1793) '> [Schiff.,] 

 " Schmett. Wien," p. 56 (1775) ; Meyer, "Fuess. Mag.," i., p. 270 (1778) ; Ksp., 

 " Schmett. Eur.," iii., pi. xi., figs. 1-5 (1782); p. 75 (1783) ; Vill., "Finn. Ent.," 

 ii., p. 123 (1789); Bkh., "Sys. Besch.," p. 97 (i7<)0): " Rhein. Mag.." p. 364 

 (1793) ; ill)., " Larvae Lep.," ii'i., Bomb, ii., VeiseR. b. ( ? [800) ; "Eur. Schmett.," 

 ii., fig. 183 ( ? 1800) ; text p. 146 ( ? 1805) ; " Verz.," p. 188 ( ? 1822) ; 111., " Syst 

 Verz. Wien.," n. Ausg., I, p. K>8 (1801) ; Schrk., "Fauna Boica," ii.. 2, p. 154 

 (1802); Latr., " Hist. Nat.," xiv., p. 178 (1805) ; " Gen. Crust, et Ins.," iv., p. 219 

 (1809); Ochs., "Die Schmett.," iii., p. 256(1810); Germ., "Bomb. Spec.," 

 p. 49 (1812) ; Leach, " Edinb. Ency.," ix., p. 132 (1815); Oken, " Lehrb. Zool.," 

 p. 707 (1815) ; Samou., "Ent. Compend.," p. 247, pi. xii., fig. 3 [819 ; funk., 

 "Lep. Fur.'," iv., p. 92 (1822); Curt., "Brit. Ent.," b. expl. pi. vii (1R24) ; 

 Stephs., "111. Haust.," ii., p. 51 (1828) ; " List Br. An. B. Mus.," p. 48 (18^0); 



Bdv., "luii-. Lep. hub Meth.," p. 48 (1829); "Icon. Chen.," pi. vi., fig. 2 (circ* 

 1840); "Gen. ei hub Meth.," p. 7' (1840); Meig., " Eur. Schmett.," ii . pp. 101, 

 [95, pi. Ixxviii., fig. 1 (1830); Wood, " Ind. Ent.," p. 23. fig. 52 (1839 : Dup., 

 " Icon, des Chen.," ii., pi. v., fig. 1 [fire. [840); "Cat. Meth.," p. 74 (1844); 

 Humph, and Westd., " Brit. Moths," p. 56 (: [843) : Evers., «' Faun. Volg.-Ural.," 

 p. 153 (i844);H.-Sch., '• Sys. Bearb.," ii., p. 104 (1846); "Ausser. Schmett.," p. 9 

 [1856); Heyd., "Lep. Eur. Cat. Meth.," ed. 3, p. 26 (1851); Led., "Ver. z.-b. 

 Wien,"ii., Abb., p. 75(1853); Sta., "Man., - i.. p. 1;; (1857); Spry.. "Geog. 

 Verb.," i., p. 407 (1858) ; ii., p. 287 (1802) ; Ilein., " Schmett. Deutsch.," p. 204 



