PROMECOPS. O13 
their surface mottled with pale brown and black. The prothorax usually has a fine 
‘arina or groove down the posterior half of the disc. The specimens standing under 
P. umbrata in the Sallé collection and in the British Museum belong to P. viator, 
the type of which I have examined. ‘The numerous examples from Cordova agree in 
having numerous long, erect sete on the elytra, but amongst those from Jalapa both 
- forms are represented. 
2. Promecops umbrata. 
Promecops umbratus, Fahr. in Schénh. Gen. Cure. vi. 1, p. 324°. 
Length 24-44, breadth 11-2 millim. (¢ @.) 
Hab. Mexico !, Jalapa (Hoge), Atoyac in Vera Cruz (fH. H. Smith). 
The numerous individuals referred to P. wumbrata (the type of which cannot now be 
found in the Stockholm Museum) merely differ from P. viator in having the elytral 
setee less numerous, short, curled, and decumbent, but often becoming longer and 
more erect towards the base. A long series from Atoyac agree in this respect, and I 
have therefore retained the two forms as distinct. The Mexican insect referred by 
Fahreus to P. nubifer, Gyll., probably belongs here *. 
3. Promecops unidentata, sp.n. (Tab. XIV. fige. 22, 22a, 6, 3.) 
3. Oblong, robust, piceous ; variegated with a dense clothing of brown, blackish, and whitish (or brownish- 
cinereous) scales, the last-named condensed into three nes on the prothorax, and two curved or 
oblique transverse fasciz (one before the middle, the other subapical) on each elytron, the blackish 
scales clustered into a common transverse patch at the kase and a large patch on each between the 
pallid fascie (these markings being sometimes coalescent along the suture); the surface also set with 
scattered, curled, decumbent seta, those on the elytra seriately arranged down each interstice. Rostrum 
longer than broad, canaliculate, densely punctate ; joints 1 and 2 of the funiculus subequal in length. 
Prothorax transverse, rather convex, rounded at the sides, constricted and narrowed in front, finely 
canaliculate or subcarinate down the middle from near the apex to the base, the surface with rather 
coarse scattered punctures. Elytra oblong, very gradually narrowing from the prominent humeri, much 
wider than the prothorax; punctate-striate, the interstices convex. Mesosternum protuberant. Legs 
stout; all the tibie strongly unguiculate, the anterior and intermediate pairs serrulate, the anterior 
pair armed with a long, acute, oblique tooth on the inner edge near the apex (fig. 22 6), the inter- 
mediate pair abruptly excavate near the tip, the excavation preceded by a sharp tooth; tarsal claws 
long, free. 
Q. Elytra subparallel in their basal half; anterior tibise without subapical tooth, the intermediate pair simply 
hollowed at the apex within, the uncus of cach less bowed inwards and not so stout. 
Length 4-6, breadth 13-23 millim. (¢ ¢.) . 
Hab. ?Costa Rica (Mus. Brit.: 9); Panama, Bugaba, Volcan de Chiriqui, David, 
Caldera (Champion: 3 2), Tabernilla, Canal Zone (Lusck, in U.S. Nat. Mus.: ¢ ). 
Numerous examples, females preponderating. Lasily distinguishable from the 
allied forms by the structure of the anterior and intermediate tibie of the male, 
* P. nubifer was said by Gyllenhal (Schénh., Gen. Cure. ii. p. 167) to be from “ North America”; Fabreeus 
subsequently, on redescribing the species (op. cit. vi. 1, p. 325), gave Brazil and Mexico for it. 
BIOL. CENTR.-AMER., Coleopt., Vol. LV. Pt. 3, December 1911. 28S 
