2 PEOCEEDINGS OF THE NATIONAL MUSEUM tol. 70 



In these characters abhotti shows a departure from the characteri- 

 zation of the genus Urothemis as given by Dr. F. Ris in the mono- 

 graph. In other respects the venation is that characteristic of the 

 genus. Doctor Ris has examined the wing photograph, and has 

 kindly written to me that in his opinion the differences noted above 

 render a sHght modification in the generic character necessary, but 

 that the species is undoubtedly to be referred to Urothemis. 



The alterations necessary in the generic definition then are as 

 follows : 



Seven or eight antenodal cross nerves in the fore wing. Between 

 Rs and Rspl one row of cells, or for a distance of one to three cells 

 two rows. Discoidal field of fore wing of two or three rows of cells. 



Dimensions. — Length of abdomen, male, 26 mm.; female, 25 mm.; 

 of hind wing, male, 36.5 mm.; female, 37.5 mm. 



Male — Coloring. — Wings slightly suffused with golden-brown 

 throughout, this coloring becoming a little more intense apically. 

 Veins brown, the costa and subcosta lighter than the rest up to the 

 nodus. Base of fore wing suffused with rich golden-brown; this 

 extends to the second antenodal cross nerve, to the arculus, and to 

 the inner angle of the interna! triangle, and thence to the anal margin 

 of the wing. 



The base of the hind wing is similarly colored; the golden-brown 

 suffusion extends from the base to about halfway between the second 

 and third antenodal, covers the basal half of the supratriangle and 

 triangle, and thence is continued back over the anal area of the wing, 

 the area covered by it having a semicircular outline not reaching the 

 anal margin. Within the suffusion there are two patches of sharply 

 defined dark-brown coloring, the smaller covering the basal half of 

 the supratriangle and triangle and filling the subtriangle; the second, 

 roughly oval in outline, extends back from the neck of the "Italian 

 loop," its antero-posterior diameter covering about three cells, its 

 transverse, greater diameter about six cells. 



Head, eyes dark brown, otherwise ochraceous, but the vesicle of 

 the frons with a warm red tinge. Antennae black. 



Prothorax apparently entirely black. 



Synthorax yellowish-brown, anterior meso thoracic margin black, a 

 small black mark on the second lateral suture; the alar sinuses and 

 coxal sutures also black. 



Abdomen red-brown, dorsum of first segment and a narrow longi- 

 tudinal line on the dorsum of eighth and ninth segments black. 



Anal appendages of the same color as the abdomen. 



Legs, yellowish-brown; articulations, spines and tarsi very dark 

 brown. 



