476 SUPPLEMENT. 
the foot-claws and pulvilli being elongate. ‘The inconspicuous pubescence on the 
arista may have induced him to refer the insect to the Dexine. 
In his analytical table of that group (Revue d’Entomologie, 1888, p. 260), Bigot 
distinguishes the genus Siphoniomyia by the rudimentary appendage at the curvature 
of the fourth vein; this appendage, however, is merely a small fold in the wing’s 
surface. 
1 (s). Trichophora fucata. 
Trichophora fucata, v. d. Wulp, Tijdschr. voor Ent. xxxy. p. 193°. 
Shining black; head whitish ; basal joints of the antenna rufous; two (seldom three) bristles on the cheeks ; 
macrocheetee of the second and third abdominal segments at the hind margins only. 
Length 9 millim. 
In facies this species is like 7’. rufina, but in coloration and in the absence of discal macrochete on the 
intermediate segments it stands nearer 7’. trisetosa and T. nitidifrons. 
Fae and cheeks yellowish-white; the cheeks with two or three bristles ; front laterally shining bluish-black ; 
frontal band brown ; frontal bristles in a double row. Basal joints of the antennew dark rufous; the 
third black, twice as long as the second, convex on its front side; arista thick. Anterior margin of the 
thorax with’ a yellowish-white tomentum and the commencement of four black stripes; pleuree with an 
oblique band of similar omentum extending from the shoulders to the middle cox. Abdomen ovate, on 
the base and laterally on the fourth segment with whitish reflections; this segment piceous or dark 
rufous. Legs black; bristles on the outer side of the middle tibie long and stout; foot-claws and pulvilli 
elongate in the male, the pulvilli fuscous, with yellowish outlines. Tegule whitish. Wings grey, 
brownish towards the costa ; venation as in 7’. rufina; the third vein a little more curved before its end. 
Hab. Mexico} (coll. Bellardi), Atoyac in Vera Cruz, Teapa in Tabasco (H. H. Smith). 
Several specimens of both sexes. 
1 (c). Trichophora convexinervis. 
Trichophora convexinervis, v. d. Wulp, Tijdschr. voor Ent. xxxv. p. 193°. 
Shining black ; head greyish ; cheeks with a single bristle; macrochetw of the second and third abdominal 
segments at the hind margins only ; posterior cross-vein curved outwards. 
Length 7 millim. 
Very nearly allied to T. fucata, but smaller; the antenne wholly black; the cheeks usually with a single 
bristle (in one of the specimens two are ‘present) ; thoracic dorsum anteriorly with some grey tomentum 
and obsolete black stripes; abdomen ovate, shining black, the anal segment dark rufous; tegule and 
wings brownish, the latter more obscure along the costa; the posterior cross-vein distinctly curved 
outwards. 
Hab. Mexico! (coll. Bellardi*), Omilteme and Xucumanatlan in Guerrero (H. H. 
Smith). 
Two males and three females. 
Trichophora trisetosa (p. 36). 
To the locality given, add :—-Mexico, Tampico (coll. Bellardi), Atoyac in Vera Cruz 
(H. H. Smith). 
* Specimen labelled “ Coscon.”—Perhaps intended for Coscomatepec, Vera Cruz? 
