396 Records of the Indian Museum. [Vol.. XXIV, 



a. Apical .segments of male abdomen much 



dilated ... .. ... Platygomphus Selys. 



b. Apical segments of male abdomen only 

 slightly dilated. Mj, and Cui parallel to 



beyond level of nodus of fore-wing ... Burmagoniphus Williamson. 



Genus Anormogomphus Selys. 



Genotype: Anormogomphus heteropterus Selys. 

 Species examined: A. heteropterus Selys. 



This genus may ultimately come to be placed in a distinct 

 tribe, but there seems no reason to doubt that it is derived from 

 ancestors belonging definitely to the Gomphine series. It is of 

 course unique amongst the Gomphinae by reason of the rounded 

 hinder wings of the males. 



Its geographical distribution is of great interest. With Vande- 

 ria (an ally of Ictinus) and with the Libelluline Selysiothemis, it is 

 characteristic of the desert areas of S.-W. Asia, but has apparent- 

 ly a more restricted distribution than either of the other genera. 



Anormogomphus heteropterus Selys. 

 i 6 . Lahore. H. T. Pease. 

 The small genus of which only two species are known, seems 

 to be confined to the arid regions of W. Asia. 



The specimen before me agrees precisely with the account given 

 of this species in the monograph. The other described species occurs 

 in Mesopotamia and Turkestan, and is rather larger than A . hetero- 

 pterus. This species is A. _kiritshenkoi Bart., of which I have 

 seen a series in the British Museum. 



Genus Gomphus Leach. 



Genotype : G. vulgatissimus (Linn.). 

 Species examined: G. personatus Selys; G. nilgiricus, 

 sp. nov. 



My knowledge of this genus is very limited. A brief compari- 

 son of the genotype with the species inhabiting India (and some 

 of their more immediate Eastern allies) gives one the impression 

 that characters for a subdivision of the genus may be forthcoming 

 in the future. 



I confine myself to describing a species from the Nilgiri Hills 

 that appears to be new, and to very short notes on the other 

 Indian species. 



Gomphus personatus Selys. 



I 3 (fragmentary). Assam. Labelled by de Selys " Gomphus promelas '.' 

 S." (5442/20). 



Differs from the type in having only a superior spot, in- 

 stead of a narrow vestige of the antehumeral stripe ; in other 

 respects what there is of the specimen agrees with the account 

 given b}' de Selys ; and I have no doubt but that the specimen is 



