A Preliminary Bevision of the Genus Trisuloides 401 



palpus "straight" or "curved" has reference chiefly to the form of 

 second segment. 



The fourteen species represented in the Joicey Collection seem to 

 fall naturally into six genera as indicated below ; the diagnoses of 

 genitalia are contributed by Mr. G. Talbot. 



Key to Genera. 



1. Wings strongly glossy : abdomen very robust almost to anus, the 



crest on segment 3 exceptionally large. 



Genitalia: Valve square-shaped ... ... ... : ., Genus 1 



Wings moderately or slightly glossy ; abdomen not extra robust, 

 more or less tapering towards anus, the crest on 3 not larger than 

 that on 4. 

 Valve lanceolate ... ... ... ... ... ... (2) 



2. Palpus straight ; hind wing with blue sheen. 



Valve with two internal processes ... ... ... ... Genus 2 



Palpus curved ; hmd wing without blue sheen. 



Valve with one internal process ... ... ... ... (3) 



3. Fore wing broad, the cell about one-half length of wing ; crests on 3 



and 4 moderately large ; $ antenna bipectinate. Process of 



valve strongly chitinized or toothed ... ... ... ... (4) 



Fore wing narrow, the cell more than half length of wing ; crests 

 slight ; $ antenna ciliate. Process not strongly chitinized and 

 with or without teeth ... ... ... ... ... (5) 



4. Segment 1 of palpus of normal length ; $ antenna bipectinate for 



almost the whole length of shaft ; J antenna serrate or ciliate. 



Process finger-shaped ; uncus broad ... ... ... ... Trisuloides 



Segment 1 of palpus rather short ; $ antenna bipectinate to nearly 

 three-fourths ; $ antenna shortly bipectinate. Process lanceo- 

 late ; uncus long and narrow ... ... ... ... Genus 4 



5. Fore wing elongate ; palpus compactly scaled, with segment 1 short ; 



hind wing more or less orange-yellow. Process of valve with two 

 or more small teeth or curved at its end (entoxantha) Tambana 



Fore wing not elongate ; palpus rather loosely scaled, with segment 1 

 of ordinary length ; hind wing brownish-grey or very pale-yellow. 

 Process of valve without teeth, not curved at the end ... ... Anacronicta 



Genus 1. Anepholcia gen. nov. 



External characters (pi. XVII, figs. 1, 2) : — 



Palpus straight, loosely scaled ; segment 1 narrow, with bifurcate 

 point at base. Wings strongly glossy. Fore wing broad, with the cell 

 about four-sevenths length of wing. Hind wing bright-yellow. Abdomen 

 very robust, hardly narrowing to anus, the crest on segment 3 excep- 

 tionally large. S antenna bipectinate with moderately long pectinations ; 

 $ shortly bipectinate. 



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