DIPL0D0MA HERMINATA. 147 



in this genus, whilst only five do so in Xysmatodoma. The supplementary 

 cell is distinct and the fork of the subdorsal nervure complete." We have 

 already stated (ante, p. 114) that whereas the antennal structure of D. 

 herminata is that of a true Psychid, that of the ? N. monilifera suggests 

 an alliance with the Adelids, whilst later (p. 135) we describe the 

 suggested Adelid arrangement of the scales on the antenna of female 

 Narycia. The antenna? of Narycia and Diplodoyyia are interesting 

 from the point of view of illustrating the evolution of the Micro- 

 Psychid antenna, that of the latter genus being more specialised 

 (especially in the ? ) than the former. The following comparison 

 may be interesting : 



N. monilifera. — s . The dorsum clothed with two rows of scales of nearly 

 equal size and in fairly accurate alignment ; the basal black, the distal white or 

 yellow ; ventrally there is a group of four or five black tubercles towards the base 

 and a transverse row of them near the extremity ; each of these somewhat raised 

 black points carries a long black hair, which are thus arranged in two groups. 

 ? . The two rows of scales completely encircle the antenna, and are in accurate 

 alignment. They are appressed to the antenna all round. One short hair makes 

 its way between the scales ventrally, about middle of segment. This is not evident 

 except about middle of antenna, where, on a few segments, there seems a slight 

 interval between two scales of the yellow row, where the hair comes through. 



D. herminata.- — <? . Scaled above with brownish-yellow scales, two rows to a 

 segment, the first row of scales being much shorter than the second, and with a 

 slight irregularity in both rows, i.e., the ends of the scales of each row are not in 

 accurate transverse alignment. The under side has long hairs, irregularly placed, 

 more numerous towards end of segment, but not collected into groups. ? . The 

 scales (a shorter and longer row) encircle each segment and, as in the s , are not 

 in accurate alignment, interiorly the long second row (in dried specimens) is not 

 applied flatly to the segment as dorsally, but stands off at an angle, so as to give a 

 serrate outline in profile ; this arrangement appears to be to give room to sundry 

 hairs towards the end of each segment, shorter and less numerous than in the 

 male, and partially hidden by these porrected scales. 



There appear to be only two Palrearctic species in the genus — hermi- 

 nata, Geoff., and adspersella, Hein., the former of general distribution 

 from Asia Minor to Britain, the latter confined to the Bavarian Alps. 



DlPLODOMA HERMINATA, Geoffroy. 



Synonymy. — Species : Herminata, Geoff., " Ent. Paris.," ii., p. 332 [with ref. to 

 "Hist. Ins.," p. 198, no. 41] (1785). Marginepunctella, Stphs., " Sys. Cat.," ii., 227 

 (1829) ; "Norn. Br. Ins.," 51 (1829) ; " Illus.," iv., p. 358 (1835) ; Curtis " Guide," 1st ed., 

 187 (1831) ; 2nd ed., 215 (1837) ; Wood, " Ind.Ent.,"fig. 1588, p. 229 (? 1839) ; Sta., 

 " Cat.," p. 6 (1849) ; " Ent. Conrp.," 1st ed.,\pp. 10, 39, 49 (1852) ; 2nd ed., pp. 8, 

 30,36(1854); "Ins.Brit.,"p. 20,pl.i.,fig. 6a-d(1854); "ListBr.An.B.M.," xvi., Lp., 

 p. 6 (1854) ; "Ent. Ann.," 1856, p. 49 (1855) ; 1861, p. 103 (1860) ; Humph, and 

 West., "Brit. Moths," ii., p. 252, pi. 120, fig. 5 (1851) ; Zell., "Linn. Ent.," vii., 

 p. 360 (1852) ; H-Sch., " Sys. Bearb.," v., pp. 30, 39, 96 (1854) ; Fre., " Ann. 

 Hoc. Ent. Belg.," ii., p. 110 (1858) ; Fologne, Ibid., hi., p. 143 (1859) ; " Ent. W. 

 Int.," vi., p. 127 (1859) ; Edleston, Ibid., p. 132 ; Ibid., viii., p. 149 (1860) ; Healy, 

 Ibid., pp. 44, 156 ; Staud. and Wocke, " Cat.," p. 105 (1861) ; p. 267 (1871) ; Hein., 

 " Schmett. Deutsch. Tin.," p. 33 (1870); Ibid., 2, Tab. 13 (1876); Nolck., "Lep. 

 Fn. Estl.," p. 469 (1871); WalJgrn., " Bih. Vet.-Ak. Handl.," hi., p. 33 (1875); 

 Bang-Haas, "Nat. Tids.," 3,x., p. 2 (1875); Staud., " Hor. Soc. Ent. Ross.," xv., 

 p. 270(1879); Sand, " Cat.'Lep. Auv.," p. 154 (1879); Snell., "Tijd. v. Ent.," 

 xxii., p. 129 (1879) ; " De Vlinders," &c, pp. 416, 449 (1882) ; "Tijd. v. Ent.," 

 xxxvii., p. 13 (1894); Hart., "Mitt. Munch Ent. Ver.," iii., 196 (1879); Frey, 

 "Lep. der Schweiz," p. 335 (1880); Ross., " J.-B. Ver. Nass.," xxxiii-iv., p. 228 

 (1881); Peyer., "Cat. Lep. Als.," 2nd ed., p. 84 (1882); Curo, "Bull. Soc. 

 Ent. It.," xv., p, 5 (18S3) ; Rou., " Cat. Chen. Eur.," 142 (1883) ; Sorh., "Die Klein- 

 schmett. Brand.," p. 142 (1886) ; Heyl., " Tijd. v. Ent.," xxxiv., p. xxvi (1891) ; 

 Meyr., " Handbook," &c, p. 777 (1895) ; Reutti, " Lep. Bad.," 2nd ed., p. 304 

 (1898). Siderella, Zell., " Isis," 1S39, p. 183; "Ber. Schles. Tausch. Schmett.," 



