STERRHOPTERIX HIRSUTELLA. 419 



(1897). Fumea, Sel.-Long., " Enum. Lep. Belg.," p. 9 (1844). Sterrhoptryx, 

 Humph, and West., "Brit. Moths," i., p. 83 (1851). Trichopsyche, Wallgrn., 

 " Skand. Het.," p. 51 (1863) ; Garb., " S.-B. Akad. Wiss. Wien," ci., p. 933 (1892). 

 Gy'mna, Eamb., " Cat. Lep. And.," p. 304 note (1866) ; Heyl., " Ann. Soc. Ent. 

 Belg.," xxv., p. 70 (1881); " Comp. Ben. Soc. Ent. Belg.," 1884, p. 8 (1884); "Kom. 

 Mem.," ii., p. 193 (1885). Empedopsyche, Standi., " Zeit. Ent. Bresl.," (2), vii., p. 

 38 (1879). Epichnovteryx, Paul and Plotz, " M. T. N.-W. Ver. Neu. Pomm.," iv., 

 p. 68 (1873) ; Barr., "Ent. Mo. Mag.," xxx., p. 249 (1894); "Brit. Lep.," ii., p. 344 

 (1895) ; Robs., "Lep. North, and Durham," p. 76 (1899). 



Hiibner's diagnosis of the genus (Verz. belt. Schmett., p. 399) reads 

 as follows : 



Die Fliigel ziemlich ansehnlich und beschuppelt ; der Wanst schlang, am 

 Bauche behaart. — 3844. Sterrhopterix vestitella, Fab. =graminella, Hb. 3845. S. 

 calvella, Ochs. = hirsutella, Hb., fig. 3 (2 by error)." 



Since graminella, Hb., is the type of Canephora, Hb., Tent., p. 2 

 (the insect standing there as Canephora graminella), it leaves hirsutella, 

 Hb. = calvella, Ochs., as the type of Sterrhopterix. We have already 

 shown (ante, p. 417) that Gymna, Ebr., and Trichopsyche, Wallgrn., 

 are synonymous with Sterrhopterix, Hb. Two species only are, as a 

 rule, referred to this genus — hirsutella, Hb., and standfussi, H.-Sch. 

 The genus may be diagnosed as follows : 



Ovum. — Oval, surface smooth. 



Case. — Roughly cylindrical, composed of loose white silk, covered irregularly 

 with pieces of plant debris, the anterior portion with small pieces of vegetable 

 matter, the posterior end unclothed ; the cast skin often attached to posterior end. 



Larva. — Head flattened ; depressed medially on crown ; surface rough ; 

 antennas two-jointed ; retractile. Prothorax with large pale corneous shield ; pro- 

 thoracic spiracle at middle of segment ; mesothoracic and metathoracic (divided 

 medially) shields rather smaller; lateral shield separate from dorsal; interseg- 

 mental membranes form large and loose folds of skin ; dorsal setas on front edge 

 of segments ; abdominal segments with well-marked incisions ; small dorsal plate 

 on 1st abdominal ; dorsal setas on corneous plates, i outside, ii nearer medio-dorsal 

 line ; setas strong ; spiracles with well-developed rim, not raised ; the lateral flange 

 well marked ; prolegs inconspicuous, with incomplete oval of hooks. 



Pupa. — <? . Short, stout ; wings broad, to middle of 4th abdominal segment, 

 third pair of legs just beyond but not soldered; abdominal segments 3 — 7 free ; 

 proleg scars distinct ; anus bluntly rounded ; two large ventro-anal hooks ; spiracles 

 large, placed towards anterior edge of segments ; anterior dorsal spines pronounced 

 on segments 4-8; posterior intersegmental spines on 3-(?)7 well marked ; tubercular 

 setas as in larva ; antennae very broad with distinct pectinations ; eye and cheek 

 parts very dark; labrum square; mandibles long and narrow ; labium large, square; 

 maxillas broader than long ; first femora with basal division marking off ? coxa, 

 ? . Head, thoracic segments and last three abdominal segments brown, inter- 

 mediate segments black ; labium, labrum and legs mere chitinous surface irregu- 

 larities ; wings marked by waved lateral lines ; proleg scars very marked ; spiracles 

 polished ; traces of lateral flange. 



Imago. — 3 ■ Forewings ample, sparsely covered with irregularly placed hair- 

 scales (longer and broader with two or three striae near fringes); no "haftfeld"; 

 hindwings regularly rounded, with no marginal notch at nervure 2 ; antennae with 

 19 joints, bipectinated from third to tip, clavola and pectinations covered dorsally 

 with hair-scales ; ventrally they have sense hairs (small compared with Aeantho- 

 psyclic) ; pectinations notched for origin of hairs and scales ; legs with long hairs 

 on femur, otherwise sparsely clothed with fine bristles ; no anterior or posterior 

 tibial spurs. ? . Head much retracted ; eyespots black ; thorax corneous, with 

 ill-marked segmental incisions ; antennae two-jointed. 



Neuration. — Forewing with la very ill-developed, not traceable forwards to 16. 



Sterrhopterix hirsutella, Hiibner. 



Synonymy. — Species: Hirsutella, Hb., "Eur. Schmett.," fig. 3, p. 14 (1796) ; 



Staud., "Cat.," 2nd ed., p. 64 (1871); "Rom. Mem.," vi., p. 302(1892); Wocke, 



" Zeit. Ent. Bresl.," iii., p. 25 (1872) ; Heyl., " Sepp's Ned. Ins.," (2), hi., p. 74 



(?1872); "Ann. Soc. Ent. Belg.," xxv., p. 171(1881); " Comp. Ren. Soc. Ent. 



A A 2 



