HYSTRICHODEXIA. 219 
v. Réd., from the Cordilleras of Colombia, may be added the following Central- 
American species :— 
1. Thoracic dorsum yellowish-cinereous. . . . . . + « « pseudohystricia, Br. & v.B. 
Thoracic dorsum blackish, anteriorly with whitish-grey tomen- 
tum, or dark cinereous with black stripes. . . . . . 2. 
2. Abdomen yellowish-rufous, with black dorsal spots . . . . formidabilis, Big. 
’ Abdomen black or piceous, sometimes laterally rufous . . . 3 
3. Antenne rufous; third joint nearly as long as the second . . echinata, v.d. Wulp. 
_ Antenne black or brown; third joint distinctly longer than 
the second. 2 6 ee ee ee ee ee 
4, Abdomen laterally rufous ; apical cross-vein deeply concave . contristans, v. d. Wulp. 
Abdomen unicolorous black or piceous; apical cross-vein 
slightly concave . 2 1 1 ee ee ee ee ee Coraccina, v. d. Wulp. 
1. Hystrichodexia pseudohystricia. (Tab. V. figg. 3; 3a, head.) 
Hystrisiphona pseudohystricia, Brauer & v. Bergenst. Denkschr. der kais. Akad. der Wissensch. 
Wien, lvi. p. 167 (1889) *. 
Head pale ochraceous; thorax yellowish-cinereous; scutellum, abdomen, and legs black; antenne and palpi 
rufous. 
Length 12°5-15 millim. 
¢. Front slightly narrowed behind, on the vertex half as broad as the eyes; frontal band blackish; cheeks 
bare; beneath the vibrissze several shorter bristles; occiput yellowish-grey ; posterior orbits of the eyes 
with long hairs. Antenne rufous; second joint prominent, with two rather long bristles ; third joint 
twice as long as the second ; arista brown, thickened at the base. Proboscis distinctly longer than the 
head, shining black, its base and the small terminal lips rufous ; palpi filiform, slightly thickened towards 
the tip, with some bristly hairs. Thoracic dorsum yellowish-cinereous, with four thin blackish lines, 
which are interrupted at the transverse suture ; pleure dark cinereous; scutellum black. Abdomen 
shining bluish-black, densely beset with strong macrochete. Front femora with regularly arranged 
bristly hairs on the upper- and undersides ; middle femora with similar hairs under the basal portion; hind 
femora on the underside with bristles over their whole length; middle and hind tibie outwardly with some 
long bristles ; all the tarsi slender, longer than the tibie ; foot-claws and pulvilli elongate and surrounded 
with long bristly hairs; the pulvilli yellow. Tegule brown. Wings with a brownish tint, yellowish 
and with yellow veins at the base, the rest of the veins obscure; small cross-vein a little before the middle 
of the discal cell; fourth vein slightly curved downwards; apical cross-vein a little concave ; posterior 
> eross-vein slightly curved. 
Hab. Mexico, Xucumanatlan 7000 feet, Omilteme 8000 feet, both in Guerrero 
(H. H. Smith). 
A male specimen from each locality. 
* Brauer and v. Bergenstamm (op. cit. p. 120) include the genus Hystrisiphona, Big.,in their group xxii 
(Dexide), but without calling attention to the very long and slender proboscis, which is one of its most striking 
characters. Instead of Hystrisiphona migra, Big., the only species hitherto described and probably unknown 
to them, they give as the type of the genus a new species from Mexico, Hystrisiphona pseudohystricta ; this 
latter has a much shorter proboscis (in addition to other characters), and ‘it must be included in Hystri- 
chodexia, v. Réd., a genus which is passed over in silence in their work. 
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