OF MEGALOPTERA. 



257 



Tribus chauliodini. 



Key to the genera. 



Antennae raoniliform or subserrate in both sexes . 1. 

 Antennae pectinate in the male, moniliform or subser- 

 rate in the female 2. 



Antennae pectinate in both sexes. 



Ctenocliauliod.es y n. g. (Asia). 



Antennae very long in both sexes, reaching about at 

 two thirds of the forewing ; in the male with long hairs 

 at the joints and the app. sup. bifurcated. 



Neohermes Banks (N. America). 



1. Antennae reaching about to or beyond the middle of 

 the forewings. Wings spotted all over with small pale 

 fuscous dots, forming in some species confluent cross- 

 bands in the forewings and in some other species larger 

 spots between media and radialsector in the hindwings. 

 App. sup. of the male long, straight or curved and 

 forming a forceps, always longer than the last segment 

 and not truncated or bifurcated at the apex. 



Archichauliodes, n. g. (New Zealand, Australia, 



S. Africa). 



As in Archichauliodes but the app. sup. of the male 

 truncated or bifurcated. Protochaidiodes, n. g. (Chile). 



Antennae subserrate in the male, moniliform in the 

 female. App. sup. of the male very short and truncated. 



Parachauliodes, n. g. (Japan, China). 



2. Forewing spotted with many small dark points, which 

 seldom form dark crossbands. App. sup. of the male 

 moderately long, acute and straight. 



Chaidiodes Latr. (N. America). 



Forewings as in Chaidiodes and Parachauliodes or with 

 larger spots, which form crossbands, that can enlarge 



Notes from the Leyden Museum, Vol. XXX. 



