HEMARIS FUC1F0RMIS. 515 



constant, it ought to be distinctively named. The following 

 characters distinguish all the Thian-Schan examples : La taille 

 toujours plus forte, une coloration plus verdatre du corps, la 

 bordure exterieure infiment plus large et la nervure transversale 

 plus largement ecaillee de brun. The form was everywhere 

 common from 3000ft. — 8000ft. altitude, and flew during the whole 

 summer. It was also found by Staudinger in northern Persia. 

 This large form being constant in the Thian-Schan, I am astonished 

 to learn that Haberhauer found a rather small form in the com- 

 paratively near district of Lepsa. Individuals of var. robusta have 

 also been received from Mauzarte (also in the Thian-Schan)." Bartel 

 notes: "47mm. — 48mm. (<?, ? ), larger on an average than European 

 specimens of M. bombyliformis (=fuaformis). The transverse nervure 

 of forewing and the outer margins of both wings are considerably 

 more broadly brown-scaled ; body more greenish in colour • does 

 not otherwise differ from the European type. According to 

 Alpheraky, this form is constant in the Thian-Schan, since all the 

 specimens caught by him possess the same characters. According 

 to Staudinger, var. robusta also occurs in North Persia. Large 

 specimens of M. bombyltformis (=fztaformis) from central Europe, which 

 show the above-named characters, may also belong to this form." 

 Kirby curiously sinks (Cat. Lep. Het., i., p. 626) this as a synonym 

 of ah. milesiformis ■, Tr. Jordan notes (in litt.): "I think robusta of 

 Alpheraky has no standing." 



d. ab. milesiformis, Tr., "Die Schmett.," x., pt. r, p. 125 (1834); Nick., 

 "Lep. Bohm.," p. 27 (1850); Kirby, "Cat.," p. 626 (1892); Bart., " Palaeark. 

 Gross-Schmett.," ii., p. 227 (1900); Staud., "Cat.," 3rd ed., p. 105 (1901). 

 — Macr. alis fenestratis ; anticis basi ex viridi flavescentibus atomis, stigmate medio 

 margineque externo purpurascentibus ; abdomine viride flavo, fascio purpurascente. 

 The true fuciformis *, L., is larger than tityus. On the contrary, milesiformis 

 scarcely reaches the size of tityus. Also in the form of the body it resembles 

 tityus much more, while fuciformis (especially the $ ) comes nearer to croatica 

 and stellatarum in its broad flatter build. The antennae are likewise shorter ; in 

 the J remarkably strong, black-brown. Thorax and abdomen yellow, almost 

 without admixture of green. The girdle is here bright red-brown. The anal 

 tuft, which in fuciformis is almost entirely black above, with only a few yellow 

 hairs in the middle, and almost always broad, is in rnilesiformis pointed, 

 black at the sides, but yellow in the middle ; underside in the former black, 

 in the latter with only the tip black. Wings narrower and shorter than 

 in fuciformis, the border of a decided coffee-brown, the nervures disappearing 

 therein. At the base they are covered with thick hairs, the central 

 streak is smaller. The whole surface bears, even after the insect has flown 

 some time, a scattered light-brown dusting, while fuciformis shows directly after 

 emergence a few blackish specks only on the otherwise glassy wings. On the 

 underside, the inner margins of milesiformis are yellow, the outer red-ochre ; in 

 fuciformis darker. The glassy surface of the last-named shows, when turned 

 towards the sun. a fine bright blue colour, almost violet, which does not appear 

 at all in milesiformis, or onlv presents a somewhat red-yellow appearance. I 

 have always taken fuciformis in the middle of May, together with tityus, there 

 is also said to be a partial second brood at the end of July and beginning of August. 

 It is always rare ; in Hungary it is of a specially fine and bright olive-green colour. 

 Milesiformis has been obtained by Dahl and myself from Franconia and Bavaria, 

 where it is a tolerably common moth. I suspect that the larvae figured 

 and distributed by Hiibner and Frever as fuciformis belong to milesiformis ; Rosel's 

 iv., pi. xxxiv., figs. 1 — 2 on the other hand represent the true fuciformis (Treitschke). 

 Distribution. — Austro-Hungary : Hraszt (Mann), Lavantthal (Hofner). 

 Belgium : Liege (Donckier). Germany : Stuttgart (Seyffler), Lower Elbe 

 dist. (Zimmermann), Waldeck, singly (Speyer), Dantzig (Grentzenberg), Marbuch, 



* Nomenclature reduced to that of Kirby in order to avoid confusion. 



