FROM THE INDIAN REGION. 483 
F. 1=53, W=103, W1=53,1V=7mm. Body4mm. Second 
joint of the antenna measures 1 mm. 
Body red-brown, the top of the tubercle black. The underside 
darker. The articulations are yellow; the legs and antenne 
brownish. 
Four females from Darjeeling. 
GaGRELLA, Stol., 1869. 
T have already considered the difference between Gagrella and 
Melanopa on the one side, and Zaleptus on the other (Zaleptus, 
antea, p. 474). I have retamed the genera Hypsibunus, 
Zaleptus, and Ceratobunus, because they have a certain practical 
value in the synonymy of the group. This, however, is not the 
case with Melanopa. The differences between Gagrella and 
Melanopa according to Thorell (10. p. 659) are as follows :— 
(1) The first pair of femora are never more than four times as 
long as the second joint of the antenne; since, however, in the 
males of G. atrata, Stol., they exceed this proportion, but do 
not reach it in the females, the character has no value in the 
definition of the genera. 
(2) Femora of the legs in Melanopa not only enlarged towards 
the extremity from the middle, but from the base. This seems 
only a necessary consequence of the shorter legs, and is certainly 
of little value. 
(3) Fourth pair of coxe relatively broader towards their 
extremities than the third. I cannot confirm this character in 
Gagrella Hansenti and G. varians, which are Melanope according 
to Thorell’s definition. 
(4) Claw of the palps not dentate. In Gagrella imperator 
the teeth are almost wanting in some specimens but not in others. 
In Gagrella Hansenii they are well developed. 
Since all the above characters are variable and insufficient for 
diagnosis of new species, I prefer to reject the genus Melanopa 
and refer its species to Gagrella; and I hope that the following 
synopsis will be of value, although it has defects, partly due to 
myself, partly to the vagueness of the original description. Many 
of the species I do not know, and of most of them I have had but 
one or two specimens—a very unfortunate fact when they vary, 
and it becomes necessary to use characters which are partly 
inconstant. 
