466 SUPPLEMENT. 
Head yellowish-white ; front broader than the eyes; frontal band narrow, brownish, sometimes inconspicuous ; 
frontal bristles descending a little beneath the root of the antenne, in the female less numerous but 
stronger ; face perpendicular, prominent towards the oral margin; cheeks with weak yellow hairs, but 
without a black bristle; beard yellowish. Antenne black, but sometimes partly rufous; third joint 
longer and broader than the second ; arista distinctly jointed, tapering towards the tip, microscopically 
pubescent. Proboscis shining black. Thorax with a cinereous, somewhat rufous tomentum, indistinct 
stripes, a pale yellow pile, and black macrochete; pleure pale rufous; scutellum rufous, on the hind 
margin with some long spines. Abdomen convex, yellow, transparent, with short yellowish pile ; a black 
spot under the scutellum; anal segment dark rufous; on the hind margin of the first and second 
segments some black dorsal spines, the second segment also with four or five lateral ones; third segment 
with some discal and a continuous row of marginal spines; anal segment densely beset with black hairs 
and spines. Legs rufous, the tarsi black; underside of the femora with yellowish hairs and black 
bristles; the bristles of the tibize rather long, especially those on the outside of the middle pair; foot- 
claws and pulvilli yellow, the claws with black tips. Tegule rufous. Wings brownish; small cross-vein 
a little before the middle of the discal cell; apical and posterior cross-veins oblique and curved. 
Hab. Mexico}, Xucumanatlan and Omilteme 7000 to 8000 feet (H. H. Smith). 
Six males and two females. This insect is nearly allied to S. d¢partita and S. trun- 
caticornis, agreeing with the latter (of which the female only is known) in the rufous 
coloration of the legs and in many other respects ; but it differs from that species in 
the absence of genal bristles, the pale pilosity of the thorax, the rufous pleure and 
scutellum, the less obscure tegule and wings, &c. 
JURINIA (p. 27). 
Several additional representatives of this genus having come to hand since the 
publication of the preceding pages, a revised table of the species is required. 
1, Abdomen yellow, with the apex black. . . . . . . « . « . dichroma, v.d, Wulp. 
Abdomen unicolorous (black or brownish-red) . . . . . . . . 
2. Palpiblackk. ©. 2. 1 1 6 ee ew ew we ew ew we .  badiiventris, v. d. Wulp. 
Palpi yellow or rufous . . . soe ee ee . 38. 
3. Second and third abdominal segments with spines at the hind margin 
only 2. 1 we ee ee ee ee ee 4., 
Abdomen densely beset with spines over its whole surface 8. 
4. Foot-claws yellow or rufous, with black tips. . . . . . . 5. 
Foot-claws black. . 2. 6. 1. 2 2 1 ww 7. 
5. Scutellum and abdomen brownish-red. . . . «. «. . «. . . . adusta,v. d. Wulp. 
Scutellum and abdomen black or dark piceous . . . ~ 2... 6. 
6. Spines of the abdomen few in number; front tarsi not dilated (2) . congruens, v. d. Wulp. 
Spines of the abdomen more numerous, forming transverse rows on 
the hind margin of the second and third segments; front tarsi 
slightly dilatedim 2. 6 w/w ee ww ee ew we. mitidula, v. a. Wulp. 
7. Tegule blackish - ©. 1 1 6. 1 ww ee ee we. punctata, v. d. Wulp. 
Tegule whitish . . . . Foe ee ee we ew ww. nepticula, v. d. Wulp. 
8. Third antennal joint longer than the second. . . 1. . . . . . assimilis, v. d. Wulp. 
Third antennal joint not longer than the second . . . . . . . spinigera, y.d. Wulp. 
