52 



UNITED STATES NATIONAL MUSEUM BULLETIN 207 



in the antennal notch from that of dosia which Dyar 

 mentions. His examination of the material before him 

 was obviously cursory for he refers to three of the La 

 Chorrera specimens as "females." 



94. Diatomocera majuacula, new species 



FlQUEB 213 



Forewing pale, dull, brownish gray; the veins outlined 

 by dark brown; entire basal area to antemedial line suf- 

 fused with blackish brown; antemedial line indicated by 

 three detached dull-white marks, a spot on costa, a 

 smaller one in cell, and a third, somewhat diffused, white 

 smudge on inner margin; sub terminal line indicated by 

 a white spot on costa, a white spot on inner margin and 

 a much fainter, pale, outwardly curved line cutting the 

 darkened veins from vein 1 to vein 5; discal spots dis- 

 tinct, separated, black. Hind wing white, transparent; 

 the veins very slightly darkened; a gray brown shade 

 along costa, and a narrow pale-brown line along termen. 

 Alar expanse, 32 mm. 



Male genitalia distinguished chiefly by their large 

 size. Eighth segment tufts of abdomen also more ro- 

 bust than those of any other species of the genus. 



Type locality: Ponta Nova, Eio Xingu, Amazonas, 

 Brazil (type in USNM, 61319). 



Food plant: Unknown. 



Described from male type, from the Dognin Collec- 

 tion in the U. S. National Museum, that had been iden- 

 tified as Sematoneura atrovenosella. The species can be 

 easily identified by its large size and the contrasted, 

 blackish basal area of forewing. 



95. Diatomocera albosigno, new species 



Figure 214 



Forewing dull ocherous brown; the veins outlined in 

 black; broken outwardly by a faint sub terminal line 

 which is indicated by a small white spot on costa, a 

 smaller, much weaker spot on inner margin and a very 

 faint, pale outcurved line between veins 1 and 6; ante- 

 medial line replaced by a large white blotch, as broad as 

 long and extending from inner margin to or almost to 

 costa, bordered outwardly by a narrow blackish line; 

 discal spots replaced by a narrow blackish line along 

 the discocellular vein. Hind wing dull, smoky white, 

 semi translucent; veins faintly darkened; a thin fuscous 

 line along termen. Alar expanse, 21-23 mm. 



Type locality: "S. E. Brazil" [probably Parand] 

 (type in BM; paratype in USNM, 61320). 



Food plant: Unknown. 



Described from male type and one male paratype 

 from the type locality labeled "S. E. Brazil, E. D. Jones, 

 1920-303." Easily recognized by the large white spot 

 on the subbasal area of forewing; the only species of 

 Diatomocera so marked. 



96. Diatomocera hoplidice (Dyar), new combination 



Figure 215 



n 

 Cabima hoplidice Dyar, Proc. U. S. Nat. Mus., vol. 47, p. 330* 

 1914. 



Forewing dark gray; unicolorous except for faint 

 darker (blackish) shading on some of the veins and a 

 dark edging to the costa; antemedial and sub terminal 

 lines obsolete; discal dots replaced by a very faint dark 

 line along the discocellular vein. Hind wings very dark, 

 smoky gray (almost black) . Alar expanse, 26 mm. 



Male genitalia with aedeagus broad and abruptly 

 tapered toward apex. 



Type locality: Puerto Bello, Panamd (Mar.; type 

 in USNM). 



Food plant: Unknown. 



Known only from the male type. Easily recognized 

 because of its nearly uniform dark coloration and lack 

 of any transverse markings on forewing. 



97. Diatomocera extracta, new species 

 Figures 217, 688 



Ground color of forewing gray with a faint ocherous 

 tint, especially in basal area; veins darkened; antemedial 

 line well out, near middle of wing, vertical, bordered 

 outwardly by a narrow reddish brown line and in- 

 wardly by a fainter line of the same color; subtermina 

 line indicated only by breaks in the dark lining of some 

 of the veins ; discal spots replaced by an oblique brown 

 line along discocellular vein. Hind wing semitranslu- 

 cent, white with a very faint grayish ocherous tint, 

 slightly darker on female; veins very faintly darkened; 

 a fine dark (brownish) line along termen. AJar expanse, 

 21-25 mm. 



Male genitalia with harpe narrow, not expanded to- 

 ward outer margin; aedeagus slightly bent; penis armed 

 with an elongate, dense cluster of slender dark spines 

 and a scattering of fine scobiaations. Female genitalia 

 with bursa transversely elongate, weakly scloerotized in 

 the area about the signa and junction of ductus semin- 

 alis, also finely scobinate in this area, the scobinations 

 extending into the ductus bursae; signa consisting of 

 two or three very narrow, thin, elongate disks. 



Type locality: Tuis, Costa Kica (type in USNM, 

 61321). 



Food plant: Unknown. 



Described from male type from the type locality, col- 

 lected by W. Schaus ("May 28-June 4"), and one male 

 and one female paratypes, collected by Schaus and 

 Barnes (Nov.). 



The species is closest to but quite distinct from moch- 

 lophleps Dyar. Most nearly resembles pale or faded 

 examples of Pseudocahima rubrizonalis (Hampson), with 

 which it was confused in the National Collection. 



98. Diatomocera mochlophleps (Dyar), new combination 

 Figures 216, 689 



Cabima mochlophleps Dyar, Proc. U. S. Nat. Mus., vol. 47, 

 p. 404, 1914 



Forewing purpHsh gray with faint pale reddish brown 

 shading between the veins; the area from base to near 

 middle slightly paler, its outer margin faintly indicating 

 an antemedial line, somewhat curved and inwardly 

 oblique from costa; sub terminal line well inward from 



