from the Rio Nautlaj State of Vera Cruz. 29 



widened on second segment. The foot-claws and pulvilli in 

 my female are not particularly short, but are as long as last 

 tarsal joint. The colouring of abdomen differs in male by 

 having the brownish triangles of segments more narrowed 

 behind, less spreading, and forming a more distinct median 

 stripe, especially on first segment. 



My specimens differ as follows from v. d. Wulp's descrip- 

 tion : — Antennffi somewhat more than half the length of face, 

 third joint hardly twice as long as second. First abdominal 

 segment of female longer than second or third, or even fourth, 

 which latter is longer than either second or third, these two 

 being about equal. Second, third, and fourth segments of 

 male about equal, but little sliorter than first, the fifth seg- 

 ment about two thirds length of fourth. (Above are from 

 comparison with the generic characters.) Antenna of male 

 brownish, of female largely fulvous. Markings of thorax 

 pale golden, alike in both sexes. Scutellum fulvous on 

 border. Mesoscutum bordered broadly with golden behind 

 the suture as well as before it. Dark markings of abdomen 

 pale brownish. Fourth abdominal segment in female with 

 the brown fainter than on the other segments. Fourth seg- 

 ment in male mostly brown. Genitalia hardly darker than 

 the fulvous of anal segment. Front femora in female with 

 but very little yellow at base, middle femora rather narrowly 

 and hind femora more broadly yellow. In male front femora 

 are narrowly yellow, but middle and hind femora have basal 

 half to two thirds yellow. The differences in the foot-claws 

 of the two sexes are exactly similar to those in Trichopoda, 

 In the male the claws are elongate, wholly of a pale tawny 

 or brownish yellow, and straight ; in the female they are 

 shortened, abruptly curved at end so as to be hook-shaped, 

 and the hook-like tips are abruptly black. 



1 believe that the two appendages of anal segment, figured 

 and described by van der \Vulp, belong to the female genitalia. 



15. Trichopoda iegulata, sp. n. 



One female, July 1, San Eafael. On flowers of the 

 Cordia sp. 



2 . Length 8 millim. 



This beautiful species is very easily distinguished from any 

 so far described. It is entirely black except as follows : — 

 Face silvery-white pollinose, extending upon sides of front as 

 far as middle. Cheeks and occiput with a cinereous silvery 

 bloom, extending over sides of thorax and coxa?. Transverse 

 suture of thorax marked by a deep gold line, widened and 

 spot-like at ends. Two golden vitta3 of same width as that 



