SELENOCOSMIINJE. 



187 



Subfamily SELENOCOSMIINiE. 



A stridulating organ present between the mandible and maxilla, 

 and consisting of a row or cluster of vibratile bacilliform bristles 

 •on tbe maxilla (fig. 61) and of spines or spiniform bristles upon 



. ■ 



'yr* 



Fig. 00. — Outer surface of man- 

 dible of Chilobrachys masoni. 

 a, stridulating spikes. 



/' 



Fig. 61. — Inner surface of maxilla 

 of Chilobrachys masoni, showing 

 series of bacilliform spines. 



the lower portion of the outer surface of the mandible (fig. 60, a). 

 Legs without spines or with a few only at the extremity of the 

 protarsi. Tibia of anterior leg in male not spurred. Posterior 

 sternal sigilla remote from the margin. 



Distribution. Hanging from India and Ceylon to Australia. 



Synopsis of Indian Genera. 



a. Legs of 4th pair much thicker than those 



of 1st, with the protarsal scopula entire 



and extending to base of segment Lyrognathus, p. 202. 



b. Legs of 4th pair weaker than those of 1st 



pair, with the protarsal scopula divided 

 and apical. 

 a 1 . Thoracic fovea transversely linear ; one 

 or more tubercles intermixed with the 



bacilliform bristles on maxilla Pcecilotuekia, p. 188. 



b 1 . Thoracic fovea crescentically procurved ; 



no tubercles amongst bacilli on maxilla. 



«". Stridulating organ consisting of shorl 



spines on mandible and of a single or 



double row of bacilli overlapped by 



a fringe of hairs on maxilla Chilobrachys, p. 192. 



b 2 . Stridulating organ consisting of spini- 

 form setae on mandible and of an 

 oval (duster of bacilli without fringe 

 of hairs on maxilla. 

 a 3 . Tarsal scopula' of 1st, 2nd, and 3rd 



legs undivided ; no inferior claw . Ski.knoi osmia, p. 200. 

 b 3 . Tarsal scopuke of all legs divided ; 

 inferior claw retained on posterior 

 leg Puj.ogiellus, p. 202. 



