DIPTERA. 463 
5. Thorax and antenne black . . . ° . oe . . + ochripes, v. d. Wulp. 
Thorax cinereous ; antenne with at least their basal joints rufous. 6. 
6. Scutellum and tegule rufous (third antennal joint very broad), . Jaticornis, v. d. Wulp. 
Scutellum cinereous; tegulz whitish or brownish-yellow. . . . 7. 
7. Legs rufous, sometimes darker; abdomen without any whitish 
reflection . 2. 2. 6. ee ee ee ew ew ee ee reefitibia, v. d. Wulp. 
Legs ochraceous ; anal segment with whitish reflections. . . . 8. 
8. Femora unicolorous with the tibie and tarsi . . . . . . . montivaga, v.d. Wulp. 
Femora (except the tip) black . . . . 2... 1 ws) femorata, v. d. Wulp. 
9. Scutellum black ; the marking on the abdomen golden-yellow . macula, Macq. 
Scutellum reddish-brown ; the marking on the abdomen white . albomaculata, Jaenn. 
10; Pilosity of the abdomen (between the spines) red or rufous. . . rufopilosa, v. d. Wulp. 
Pilosity of the abdomen black . . . . . . . . . . ) .) Onigropilosa, v. d. Wulp. 
11. Thorax blackish, anteriorly with some grey tomentum . . . . wunicolor, v. d. Wulp. 
Thorax cinereous . . re 22 
12. Abdomen grey, with black markings tee ee ew ee we Cand, Vv. A. Wulp. 
Abdomen testaceous or brownish-yellow . . . oe 13. 
13. Foot-claws yellow, with black tips; scutellum and abdomen dark 
testaceous 2 ww ee ee ee ee ew we ee) «testacea, V. d. Walp. 
Foot-claws black ; scutellum and abdomen yellowish-testaceous . consanguinea, v. d. Wulp. 
14, Antenne and legs black . . . 2. . woe ee ew ee) «(Gtpartita, v. ds Wulp. 
Antenne, or at least their basal joints, and legs rufous (the tarsi 
black). 2. 2 we ee ee ee ee ee ee CE 
15. Seutellum black, with macrochetz (third antennal joint broad 
and truncate) . 2 2 6 1 ee ee ee ew eee treuncaticornis, v. d. Wulp. 
Scutellum rufous, with spines . . . 1. 1. 1 we ee ee Ceta, v. d. Walp. 
2 (a). Saundersia montivaga. 
Saundersia montivaga, v. d. Wulp, Tijdschr. voor Ent, xxxv. p. 190°. 
Thorax and scutellum cinereous; abdomen black, the anal segment with faint whitish reflections; head 
yellowish ; antenne rufous, with the third joint black; legs ochraceous; wings brownish. 
Length 14:5 millim. 
Head yellowish-white; front cinereous, as broad as the eyes (¢) or broader(?); frontal band brown ; 
frontal bristles descending a little beneath the root of the antenne; cheeks with some weak, pale yellow 
pile; beard of the same colour. Basal joints of the antenne rufous; second joint with some short hairs 
and a longer bristle; third joint black, ovate, as long as the second ; arista indistinctly jointed, tapering 
towards the tip. Proboscis shining black. Thorax and scutellum cinereous ; thoracic dorsum with 
blackish lines. Abdomen shining black; the white reflections on the anal segment forming a more or 
less distinct front-border, which is sometimes interrupted in the middle. The scutellum and abdomen 
are densely beset with spines. Legs ochraceous; femora and tibie with long black bristles; the tarsi 
have no bristles, except some very small ones at the end of the joints; foot-claws and pulvilli yellow, the 
claws with black tips. Tegule yellowish-white. Wings brownish; small cross-vein a little before the 
middle of the discal cell; apical cross-vein concave at its base and for the rest straight; posterior cross- 
vein curved. 
Hab. Mextco1, Xucumanatlan and Omilteme in Guerrero 7000 to 8000 feet 
(H. H. Smith). 
30 2 
