1020.] 1<J5 



the narrow sixth segment and the tip of the aedeagus exposed. Legs slender, 

 the femora slightly thickened. 



2- Antennae short, scarcely longer than the width of the protliorax at 

 the base, rather slender, joints 3-9 about as broad as long, 4-9 serrate, 10 and 

 11 small, 11 acuminate. 



Length 2^-2^, breadth li-2 mm. ( J .? .) 



I£ab. Eanikhet,Kumaon, alt. about 3000 ft. (IL G. C: iv.,v.l920: 

 d$); Ouchterlony Valley, Nilgirl Hills, alt. 3500 ft. {II. L. 

 Andreives: cT ) ; Lachiwala, Delira Dun {Dr. Imms: J). 



Described from twenty males and three females from lianikhet, the 

 single males from the other localities almost certainly belonging to the 

 same species. Mucli smaller than P. immsi Gahan, type $ , from Bhowali; 

 the prothorax less dilated posteriorly, the sides subparallel at the base ; 

 the antennae of the $ short, scarcely longer than the basal-width of 

 the prothorax (tig. 1). The apical joint of both the maxillary and labial 



Psephenoides f/ahani, n. sp. : 1, antenna, $ ; 

 2, maxillary and labial palpi, etc., (? . 



palpi in the two species in S and 2 i*^ furnished with two long, mova])k', 

 cheliform processes (fig. 2), one of which was overlooked by Dr. Gahan 

 and the other described by him as a setiform joint. The palpi are 

 slender; the maxillary pair 4-jointed, the basal joint sliort, tlie second 

 elongate ; the labial pair 3-jointed. The anterior coxae are strongly 

 transverse, without visible trocbantin (globose and with large exposed 

 trochantin in Psephenits). The femora are slender. The ventral sur- 

 face of the abdomen is shining (scabroso-punctulate and opaque in 

 Psepliemis). The coxal and abdominal characters remove Psej^h.enoides 

 from the Parnid-group Psepheninae as defined by Leconte and Horn, 

 and the genus seems to me to be much more nearly related to the 

 Dascillid-groups Atopiinae and Euhriinae, some of the genera of which 

 are doubtless aquatic or subaquatic in their earlier stages. My son sends 

 the following note on the habits of P. yr^f/i!«;// at Ifanikhet : — " Found 



S2 



