62 U.S. NATIONAL MUSEUM BULLETIN 244 



3 cTcf, July 8-31; 17 cT cf, Aug. 1-7; &, Sept. 8-15, USNM. Victoria, 3 cTd^, 

 June 24, CU; (?, July 4, USNM. 



GUATEMALA: Cayuga, cf, type, C. pizote, May; 2 d'c?', May; cf, Sept.;2 

 cr'cf, USNM; d^. May; d', Aug., BM. Chejel, cf", Aug. USNM. Qeuriflia, d^, 

 May, BM. 



HONDURAS: Lancetilla, Tela, d", April 30, MCZ. 



MEXICO: Motzorongo, cf, Sept., AMNH. 



9. Dendropsyche Jones 



Dendropsyche Jones, Trans. Ent. Soc. London, vol. 74, p. 509, 1926b. — Dalla 

 Torre and Strand, Lep. Cat., pars 34, p. 197, 1929. — Gaede in Seitz, 

 Macrolep. World, vol. 6, p. 1179, 1936. 



Type of genus.- — Dendropsyche burrowsi Jones, 1926. Original 

 designation and monobasic. 



Male. — Antennae bipectinate to tips, branches diminishing in 

 length apically from middle. Legs slender; first pair longest; third 

 pair shortest. No tibial spurs or spines. Posterior end of abdomen 

 exceeds hind wing margin % to almost K length of abdomen. 



Wings (fig. 157) rounded, 11 and 7 venation. No veins stalked 

 to cell; R3+4 completely fused, R5 separate at base; all medial veins 

 arising separate or nearly so from cell; base of medius undivided 

 within cell of both wings, or faintly forked in primaries; lA and 2 A 

 anastomosing beyond middle, coincident, straight to margin; 3 A 

 uniting with 2A near wing base, no spur to hind margin present. 

 Sc+Ri and Rs of hind wings completely separate, parallel or weakly 

 connected by faint crossvein about midway along discal cell. 



Male genitalia.— Elongate, narrow; valves proportionately very 

 broad, pulvilli obsolescent, apex of sacculus minutely spined. Vincu- 

 lum gradually tapering to very slender, elongate saccus. Aedeagus 

 simple. Eighth sternite with heavy basal portion, slender furcations 

 equal to base in length. 



Female. — Unknown. 



15. Dendropsyche burrowsi Jones 



Figures 13, 75, 157, 202, 202a, 257, 257a; Map 7 



Dendropsyche burrowsi Jones, Trans. Ent. Soc. London, vol. 74, p. 509, pi. L., 

 figs. 1-7, 1926b.— Dalla Torre and Strand, Lep. Cat., pars 34, p. 197, 

 1929.— Gaede in Seitz, Macrolep. World, vol. 0, p. 1179. 1936. 



Male. — (Fig. 13.) Body very slender, densely hairy, uniform 

 fuscous color. Antennae with about 18 segments. First tarsal 

 segment of all legs long, more than twice as long as second segment. 



Wings evenly, very thinly scaled; wing scales narrow, hairlike. 

 Secondaries with faint crossvein individually variable; in some speci- 

 mens present in one wing, absent in other. Wing expanse 12-13 mm. 



