44 Records of the Indian Museum. [VoL. XI, 
black ; tegulae white ; mesoscutum black ; scutellum black with 
a small white spot anteriorly; mesepisternum white except along 
the dorsal margin ; entire ventral part of the insect white ; abdo- 
men black above, except the narrow lateral margin of the 
segments ; venter white ; legs yellowish ; white posterior tarsi 
dusky ; antennae black; wings hyaline, iridescent; venation 
dark brown, stigma pale brown, paler at base. 
Male.—Length 5 mm. Agrees with female except in the 
sexual characters. 
Darjiling, East Himalayas. Described from one female and six 
males collected at an altitude of 7,000 feet, May 25-29 (E. Brunettt). 
Type, allotype and paratype in the Indian Museum. Type 
No. *%5*; and allotype, No. *ts*. 
Paratype in U.S.N.M. 
7 
Genus Tenthredella, Rohwer. 
Tenthredella assamensis (Konow). 
One female from the Khasi Hills, Assam, which agrees very 
well with the original description. The basin is shallow, bounded 
by low rounded walls; clypeal lobes obtusely triangular; post- 
ocellar area slightly wider than long. 
Tenthredella carinifrons (Cameron). 
One female from Darjiling, collected May 28, Igto, at an 
altitude of 7,000 feet (E. Brunettt). 
Tenthredella segrega (Konow). 
Two females from Sikkim, Eastern Himalayas. 
Tenthredella turneri, Rohwer. 
One temale from Shillong, Assam. 
Tenthredella xanthoptera (Cameron). 
One female from Kurseong, East Himalayas, collected Sep- 
tember 7, 1909, at an altitude of 5,000 feet. 
This specimen, which agrees well with the original description, 
has the scutellum pyramidal; anterior ocellus in a well defined, 
shining basin which is deeper than the rest of the frontal basin ; 
labrum longer than wide, rounded apically; sheath subparallel- 
sided, with apex regularly rounded; mesepisternum strongly 
angulate below. 
Tenthredella annandalei, sp. n. 
This species may be readily separated from the other species 
of this group by the black posterior tibiae, the pale posterior 
