122 BOMBYCIA. By W. Warren. 



hatched on the flowers, on which the egg is laid, then entering the stalk and boring downwards to the 

 roots, in which it lives and ultimately pupates; the imago emerges in autumn and hibernates. Type Dasy- 

 polia tcmpli Thnbg. 



Sect. I. Antennae of $ bipectinate to apex. 



milis. D. mitis Pueng. Forewing very pale yellow, tinged with rufous in the median area; lines rufous; the 



inner waved, the outer lunulate-dentate; veins before termen rufous; subterminal line very faint, with a slight 

 shade before it on costa only; orbicular and reniform stigmata white, slightly outlined with rufous; the orbi- 

 cular round and quite small, the reniform with inner edge straight; fringe white; hindwing white. Askhabad, 

 W. Turkestan. 



Sect. II. Antennae of q serrate, with sessile fascicles of cilia. 



ferdinandi. D. ferdinandi Buehl, (29 i). Forewing olive grey-brown, the cell and costal area above it rather darker; 



inner and outer lines alone marked, brown, approximating on inner margin; orbicular stigma a greyish ochreous 

 dot; reniform small, rounded, with dark centre and ochreous grey annulus; submarginal line hardly visible; 

 fringe grey brown: hindwing greyish brown. Zermatt, Switzerland, Differs from D. templi Thnbg. by the 

 absence of yellow scaling. 



tcmpli. D. templi TJinbg. (29 i). Forewing pale yellow grey in the $, simply pale grey in the $, densely dusted 



with darker: the lines diffusely darker still, outwardly edged with pale ground colour; median area often 

 darker, the reniform, and sometimes the orbicular, showing paler; submarginal line pale, waved; fringe 

 chequered, grey and yellowish; hindwing a little paler, with cellspot, outer, and sometimes a submarginal 



alpina. line greyer; — ab. alpina Rghfr. (= caflischi Buehl) (29 i). is an alpine form, with the ground colour more 

 bluish grey, the stigmata picked out with chalk-white, and the outer line of hindwing more strongly marked. 

 Larva yellowish grey, tinged dorsally with red; when fullgrown, fleshcolour, with large tubercles; head, 

 thoracic, and anal plates brown: feeds on Umbelliferae, especially Heracleum sphondylium. Found in Britain, 

 Scotland, the Shetlands, France, Germany, Austria and Switzerland ; also recorded from Armenia. 



fani. D. fani Stgr. (28 d). Forewing reddish grey brown; the veins often darker; the outer half of median area 



darker; inner and outer lines grey, waved; orbicular and reniform stigmata small, with redbrown centres and 

 pale annuli, outlined with brown; a waved dark median shade; submarginal line pale, with a grey shade before 

 it; fringe chequered: hindwing pale redbrown, with the cellmark, outer line, and subterminal band darker; — ab. 

 lama, lama Stgr. (= asiatica Alph.) is more j^ellowish grey, with the markings of forewing less defined. An asiatic 

 species, occurring in W. and E. Turkestan, Tibet, Mongolia, and E. Siberia. — Smaller than D, templi. 



yerbillus. D. gerbillus Alph. (28 d). Forewing yellowish-grey ; inner line angled outwards below costa, then oblique and 



waved; outer line minutely dentate; orbicular and reniform whitish, fuscous-edged; the orbicular elongate, 

 oval; hindwing grey, with cellspot, a sinuous outer line and subterminal band darker, as in the last species. 

 Nan-Schan Mts., Tibet. 



25. Genus: Bombycia Stph. 



Tongue well'-developed ; palpi obliquely porrect, hairy below, the terminal segment short; antennae 

 of (3 bipectinate; vestiture hairy; abdomen laterally tufted, and with slight dorsal crests. Larva on Salix, 

 living between united leaves, feeding up in spring and emerging in summer. Tj-pe Bombycia viminalis F. 



viminalis. B. viminalis F. (29 i, k). Forewing dark or pale grey varied with fuscous; the base diffusely darker; 



the median shade broadly blackish; lines pale, approximating below middle, where they are conversely marked 



with black; a short black streak on base of submedian fold; claviform stigma long, black-edged, touching 



or connected with outer line; orbicular and reniform pale, with black outlines, the reniform sometimes white; 



submarginal line pale, preceded by a rufous grey shade; hindwing brownish grey; fringe pale, often rufous, 



saliccti. like the lateral and anal tufts of abdomen; in saliceti Bkli. (29 k) the inner half of wing is dark, limited by 



slricta. the median shade, the outer half much paler; ab. stricta Esp. (29 k) is a grey or brown form, with the ter- 



rufescens. niinal area only pale, and the costal edge red ; a rarer form of Avhich, ab. ruf escens ab. nov. (29 k), has the whole 



obscura. forewing and the underside of both wings suffused with rufous; obscura Stgr. (29 k) is a darker common form, 



a iiicui, jr. more uniformly dark grey, of which unicolor Tutt, from the north of England, a nearly black form, is an ex- 



seripta. treme development: scripta Hbn. (30a) the commonest form in the S. of England, has the ground colour 



suffusa. white or grey white; ab. suffusa ab nov. (30 a) is a form with the white forewing suffused with smoky brown 



asiatica. obliterating the lines, and leaving only the stigmata with their black outlines visible; asiatica Bang-Haas 



uralensis. from Siberia is described as being grey and fuscous without any brown tinge; and uralensis Bart. (30 a) 



from the Urals, a small grey form, with some rufous along both folds, has the hindwings whitish, with a faint 



outer line and grey speckling. The species occurs throughout N. and Central Europe, Armenia, W. and E. 



Siberia. — Larva whitish green, with all the lines whiter, and the tubercles whitish: feeding between united 



leaves of sallow. 



