Diptera of St. Vincent {West Indies). 255 



The neuration is very nearly the same as that of the type species 

 (comp. Karsch, /. c, fig. 1). The first joint of the tarsi is about 

 one-third of the length of the second joint, which is as' long as all 

 the other joints together. The fifth joint is widened, somewhat 

 disk-like,andisaslongas the preceding joint. The head is wanting. 

 The colour of the remainder of the insect is light yellow, with the 

 mesonotum brown. Length about | mm. 



Trichopteromyia, n. g. 

 Allied to D'/nmyza (in Schiner's sense), but the first and third 

 longitudinal veins are not crowded together anteriorly, the third 

 vein terminating at the tip of the wing. Wings broad, very hairy ; 

 proximal section of the third vein straight, the distal section 

 nearly straight ; pref urea of forked cell scarcely longer than the 

 sixth vein. Antennae with the joints distinctly petiolate ; the 

 distal portion of the antennis in both specimens is wanting. 

 Metatarsi longer than the following two joints together. 



The genus Diomyza is, as yet, not well known, and I 

 do not feel quite sure of its distinctive characters. As 

 Schiner defines it, it differs from Lasioptera only in the 

 elongate metatarsi. However, there has been much 

 confusion in the application of the name Diomyza, as 

 Karsch has shown (Revision der Gallmucken, p. 13), 

 and it may be that the name will have to be abandoned. 

 The present genus seems to be the only other oue known 

 with elongate metatarsi, in which the fifth vein is forked. 



1. Trichopteronii/ia modesta, n. sp. (PI. VIII., figs. 6, 

 wing ; Qa, tarsus ; 66, part of antenna.) 



9 . Reddish-yellow, opaque ; the pleurae, venter, and legs 

 yellow ; the front and tip of abdomen blackish, the metanotum 

 brownish. Antennae brownish-yellow, with black hair. Wings 

 hyaline beneath the dense blackish hair. Length nearly 2 mm. 



Two specimens. 



MYCETOPHILID^. 



Macrocera. 

 Moigen, Illiger's Mag., ii., 261, 1803. 



1. Macrocera concUma, n. sp. (PI. VIII., fig. 7, wing.) 



^ , $ . Yellow. Mesonotum with three brown stripes ; wings 

 cinereous, with a large central brown spot, a spot at the tip of the 

 thickened first vein, the tip of the wing and a small cuncate spot 



