50 DIPTERA. 
species closely resembles Echinomyia analis (Fabr.); but it cannot be confounded with 
that insect if attention is paid to the shape of the antenne (the third joint of which 
is not shorter than the second), the hairy eyes, &c. 
4. Nemorza smithi, sp.n., ¢ ?. 
Head whitish; thorax and scutellum with yellowish tomentum ; abdomen shining rufous, with a broad black 
dorsal band; antenne dark rufous; palpi ochraceous ; legs black, the front tarsi dilated in the female ; 
base of the wings infuscated. 
Length 8 millim. 
Allied to WV. forreri, but smaller in size. The frontal band more obscure and narrower ; the third joint of the 
antennw longer, nearly twice as long as the second ; the arista more distinctly jointed ; the abdomen not 
unicolorous black, but brownish-red with a rather broad black dorsal band ; the foot-claws black ; the 
three median joints of the front tarsi distinctly dilated in the female; and the infuscation at the base of 
the wings more intense and more extended along the costa. 
Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith). 
One male and four female specimens. 
5. Nemorza intermedia, sp.n., ¢ 2. 
Head whitish ; thorax and scutellum yellowish-cinereous ; abdomen shining black ; antenne and palpi rufous ; 
legs black, the front tarsi dilated in the female ; base of the wings infuscated. 
Length 8-11°5 millim. 
This species also is closely allied to WV. forreri. The abdomen is unicolorous shining black, in the male without 
any whitish reflection on the anal segment; the frontal band is brown and narrow; in the female the 
three median joints of the front tarsi are dilated, though they are less broad than in NV. smithi. In some 
female specimens the fuscous coloration of the wings is as intense as in that species, but these examples 
differ from NV. smith in the total absence of red colour on the sides of the abdomen. 
Hab. Mexico, Xucumanatlan 7000 feet and Omilteme 8000 feet, both in Guerrero 
(H. H. Smith), Mexico city (Schumann). 
Several specimens. 
It has given me some trouble to distinguish N. forreri, N. smithi, and N. intermedia, 
as these bear a striking resemblance to each other ; but, owing to the above-mentioned 
differences, I must regard them as three very closely allied but distinct species. I 
have found, however, some individuals which seem to be hybrids of WV. forrert and . 
N. intermedia. All are females: some of them have the broad frontal band of the 
former and the dilated front tarsi of the latter; in other and very small female specimens 
(5°5-6'5 millim. in length), on the contrary, the frontal band is brown and narrow, but 
the tarsi are not at all dilated. 
There is still another described species of this genus from Central America :— 
Nemorea intrita, Walk. Trans. Ent. Soc. Lond. n. ser. v. p. 297.—Mexico. 
