MOTHS FKUM SOMALILAXD. 147 



Subfain. Acidaliin.k. 

 Genus Tricentroscelis, nov. 



Face rounded, markedly prominent, with appressed scales. 

 Palpus short, shortly rough-scaled. Tongue present. Antenna 

 in female minutely ciliated. Pectus and femora glabrous. Hind 

 tibia in female with a single proximal and a pair of terminal 

 spurs, all of moderate length. "VVing-shape and facies of 

 Acidalia, distal margins smooth. Fore wing with SC from 

 cell, anastomosing with SC- and then very strongly with SC^"* 

 (i. e. areole double and SC^ and SO'' arising before and behind the 

 apex of the distal areole), M^ well separate from W. Hind wing 

 with C normal, SO" veiy shortly stalked or almost connate with 

 R', M^ well separate from R^ 



Type of the genus : Tricentroscelis protr^isifrons^ sp. n. 



Differs from the Neotropical Hcelolofhia Hulst iy-=^Calyptocom,e 

 Warr. = Crypsitila Warr.), which also has often a 3-spurred 

 female hind tibia, in the protuberant face and longer cells. 



Tricentroscelis protrusifroxs, sp. n. (PL II. fig. 21, $ .) 



2 , 21 mm.. Face fuscous. Palpus fuscous, not quite reaching 

 extremity of frons. Vertex and aiitenna similarly coloured to 

 wings, but rather paler ; antennal ciliation minute. Thorax 

 concolorous with wings. Abdomen slightly paler, 2nd-4th 

 segments mostly occupied dorsally by a large fuscous blotch, the 

 later segments interruptedly marked with fuscous dorsally. Foie 

 wing with apex and termen somewhat rounded ; reddish bi'own 

 (light grey-brown irrorated with rufous and blackish) ; ante- 

 median line indicated by rufous and blackish scales, accentuated 

 by black spots on costa and hind margin and dots on the veins, 

 arising before one-third costa, bent in cell, becoming oblique 

 inwards and sinuous ; discal dot small but sharp ; median shade 

 obsolescent, placed between discal dot and postmedian line, 

 slightly more distinct as a costal dot, outbent at radials, inbent 

 at fold; postmedian from costa slightly beyond two-thirds, faint 

 except at costa and veins, where it is marked by black dots, 

 angled at SC, then strongly oblique outwards to Il\ then more 

 parallel with termen, but slightly sinuate inwards at R^ and 

 more strongly at fold ; terminal dots strong, black ; fringe 

 somewhat dusted with blackish, a slender clear line at base. 

 Hind wing with termen almost smooth, very slightly sinuous 

 towards anal angle ; concolorous with fore wing, discal dot 

 slightly larger, median shade much stronger, nearly straight, 

 proximal to the discal dot, antemedian wanting, the rest as 

 on fore wing. Under surface slightly paler, the discal and 

 terminal dots and postmedian line reproduced, though less 

 sharp ; hind wing in addition with medi;in shade indicated 

 at abdominal margin. 



1909 : Apr. 6,-1 ? (type). 



Superficially similar to some African Acidalia {exi<juavia group) 

 or Ptijcliopoda {sbiihiliiica Prout, etc.). 



10* 



