AMERICAN MOTHS OF THE SUBFAMILY PHTCITINAE 



53 



termen, angulate with apex of the angle within the fork 

 of veins 4-5, appears denticiJate due to pale interrup- 

 tions on the veins, preceded by short black dashes on 

 the veins; veins otherwise faintly blackish; a distinct 

 and characteristic discal mark beginning as a black 

 streak or dot at lower outer angle of cell and continued 

 as a curved line along discocellular vein and for a short 

 distance inward along upper vein of cell ; a row of black 

 dots along terminal margin. Hind wing translucent, 

 white; the veins darkened, a smoky shade along costa 

 and a narrow blackish line along termen. Alar expanse, 

 31 mm. 



Male genitalia similar to those of extracta, except api- 

 cal part of uncus broader and vinculum stouter. Fe- 

 male genitalia with bursa globular; the signa consider- 

 ably larger and more triangulate than those of extracta. 



Type locality: Zacualpan, Mexico (tjrpe in USNM). 



Food plant: Unknown. 



In addition to the male type and a female from the 

 type locality there is before me a smaller (27 mm.) male 

 from the Janse Collection labeled simply "Mexico." It 

 is more suffused, lacks the pale basal shade on forewing, 

 and shows scarcely any trace of a sub terminal line. The 

 black discal mark, however, is present and strongly con- 

 trasted. This is the characteristic feature of the species. 

 It resembles an inverted comma with the tail pointed 

 towards the base of the wing. 



26. Pseudocabima, new genus 



Type op genus: Myelois euzopherella Dyar. 



Characters of Diatomocera except: No notch in shaft 

 of male antenna; forewing of male without costal fold; 

 hind wing with vein 3 frequently stalked with the stalk 

 of veins 4-5 (apparently not a constant specific char- 

 acter) . In one species (rubrizonalis) the apical process 

 of gnathos differs from that of any other species of either 

 Pseudocabima or Diatomocera in that it is developed as a 

 flattened hook with cleft apex and not as a U- or V- 

 shaped pair of prongs. Such a departure from type is 

 unusual within generic limits, but of no more than spe- 

 cific significance, because the species otherwise is per- 

 fectly normal. 



The new genus is proposed with great reluctance ; for 

 its species are very closely related to the bulk of those in 

 Diatomocera, though none has been previously associated 

 with them; but some separation must be made if we are 

 to define our superspecific groups with any exactness. 

 Psevdocabima, Diatomocera, and Entmemacornis are all 

 obviously closely related, but they are separable on con- 

 sistent, if slight, structural differences. 



Ten species are here recognized as belonging to the 

 genus. One of these is North American (arizonensis) . 

 The remainder are tropical and probably only a fraction 

 of the species inhabiting Central and South America. 



Before me are five single examples of what appear to 

 be as many new species. It seems advisable to leave 

 them undescribed until more material is available, their 

 sexes can be associated, and more is known about the 

 individual and local ranges of variability within species 



of the genus. There seems to be some variability, both 

 in color and in minor details of genitalic structure. 



99. Pseudocabima castronalis, new species 

 Figures 218, 696 



Forewing gray, the ground color lightened by white 

 dusting over much of the median area; antemedial line 

 distinguishable throughout, whitish, nearly vertical, 

 slightly out-bent from before middle of costa to middle 

 of cell, thence slanting inwardly very slightly to vein lb 

 and thence outwardly to the inner margin, followed on 

 inner margin by a dark blotch; subterminal line from 

 outer fourth of costa, bluntly angulate at middle (the 

 line more curved than angled between vein 6 and lower 

 fold) ; discal dots replaced by a pale ocherous brown spot 

 covering the discocellular vein ; fainter extension of this 

 brownish shade between some of the veins in outer area, 

 especially near costa beyond and before the subterminal 

 line; some blackish streaking on the veins, conspicuous 

 as three short black streaks following the brownish dis- 

 cal spot; hind wing smoky white, semitranslucent on 

 the male; darker, more brownish on female; the veins 

 but faintly darkened. Alar expanse, 23-27 mm. 



Male genitalia with aedeagus tapering to narrow 

 apical end; penis without spining or scobinations. Fe- 

 male genitalia with signum a curved chain of more or 

 less bluntly pointed disks. 



Type locality: Castro, Parand, Brazil (type in 

 USNM, 61322; paratypes in BM). 



Food plant: Unknown. 



Described from male type from the type locality, and 

 one male paratype and one female paratype labeled 

 "S. E. Brazil, E. D. Jones, 1920-303," the latter two from 

 unplaced material in the British Museum. They are 

 somewhat discolored and consequently appear more 

 yellowish than the type, which is in better condition, 

 showing no trace of grease. This specimen was de- 

 posited in the National Museum in 1905 by Schaus as 

 representative of a Hampson manuscript species. It 

 bears the name label (in Hampson's handwriting): 

 "Coptarthria castroalis Hampson, Type cT ." Apparently 

 Hampson never published a description. 



The best character for recognition of the species is 

 the ocherous-brown discal spot with its outwardly bor- 

 dering contrasted black streaks. 



100. Pseudocabima fearnella (Schaus), new combination 



Figure 219 



Myelois fearnella Schaus, Ann. Mag. Nat. Hist., ser. 8, vol. 11, 

 p. 245, 1913. 



Forewing gray, a reddish brown shade along lower 

 fold and some dusting of the same color along inner mar- 

 gin; antemedial line obsolete; subterminal line faint but 

 distinguishable, bent as in castronalis, pale gray; veins 

 discontinuously lined with black; discal spots black, 

 separated or (at most) partially fused. Hind wing 

 white, semi transparent; the veins slightly darkened; 

 a darker more distinct line along termen. Alar expanse, 

 19-23 mm. 



