247. Orthocladius annuliventris, sp.n. (PI. xi., fig. 10). 



0-88 millimetre. 

 2-27 X 0-58 

 2-79 xO-50 



(J. — Length of antennaQ 0*035 inch 



Expanse of wings 0-090 x 0-023 



Size of body 0-110x0-020 



AntennaB black, plumes somewhat bronzy towards tips. Head, 

 clypeus, and palpi black, the latter sometimes more brownish. 

 Thorax black, nitidous, glabrous, with no trace of stripes ; pleurae, 

 pectus, scutellum, and metanotum black, the last two opaque. 

 Halteres pitch-brown. Abdomen about twice and half the length 

 of thorax, black, nitidous, whole of the first segment, anterior third 

 of second, and anterior half of fourth and fifth segments pale 

 brownish-yellow or ochreous ; sparingly covered with short 

 brownish hairs ; anal joint and forceps short. Legs pitch-brown, 

 genua ochreous-yellow, and fore and intermediate tibiae with a 

 very broad ring of white near the base. In fore legs tibia nearly 

 twice the length of metatarsus. Wings as long as abdomen, hyaline. 



