ORCHESIA.—CUPHOSIS. 81 
finely so; prosternum subparallel between the coxw, the apex blunt; legs rather stout, brownish or 
ferruginous. 
Length 33-42 millim. 
Hab. Guatemata, San Gerénimo, El Tumbador (Champion). 
‘Four examples. ‘This species is, no doubt, closely allied to the North-American 
O. gracilis, Melsh., the prosternum being similarly shaped; but, to judge from Dr. 
Horn’s description of that insect, O. guatemalensis is still more narrowed posteriorly. 
The form of the antenne of O. gracilis is not mentioned by Melsheimer or Dr. Horn ; 
these organs are comparatively long and slender in O. guatemalensis, the species 
differing considerably from the allied European forms in this respect. 
MICROSCAPHA. 
Microscapha, Leconte, New species Col. p. 152 (1866). 
This genus was established by Leconte upon a single species from Illinois and | 
Georgia; a second from Central America is here described. Microscapha is allied to . 
Orchesia, but easily distinguished from it by the antenne being clubbed and having a 
very stout second joint, and the maxillary palpi differently shaped. Both species are of 
ovate shape and very small. 
1. Microscapha minuta. (Tab. IV. fig. 10.) 
Ovate, convex, sparsely pubescent, shining, black or piceous-brown, the front of the head, oral organs, antenne, 
and legs testaceous. Prothorax very minutely and sparsely punctured ; elytra very finely, distinctly, and 
rather closely punctured, without trace of serial rows of punctures. 
Length 13 millim. 
Hab. Mexico, Jalapa (Hoge); GuatemaLa, Chacoj in Vera Paz (Champion). 
One example from each locality, both, unfortunately, in a mutilated condition. 
M. minuta seems to agree precisely in structure with J. clavicornis, from which it 
apparently only differs in its punctured elytra and considerably smaller size. . clavi- 
cornis is described as “ fere impunctata,” whereas in V/. minuta the elytra are finely but 
quite distinctly punctured. 
CUPHOSIS. 
Maxillary palpi very strongly serrate, the apical joint very long and securiform, the second and third joints 
acutely produced at their inner apical angle and with their apical side deeply arcuate-emarginate, the 
third joint only about half as long as the second; last joint of the labial palpi short, ovate; mentum 
rather broader than long, widest behind; maxille with the inner lobe exceedingly narrow, the outer lobe 
moderately broad; mandibles entire at the apex, without trace of tooth on the lower side; labrum 
prominent, rounded in front; head vertical, the epistoma not defined; eyes large, not prominent, 
emarginate in front; antenne very long and filiform, tapering a little outwardly, 11-jointed—3-11 very 
elongate, almost equal in length, 3 about as long as 1, but very much more slender; prothorax about 
as long as broad, convex, a little rounded in front (if viewed from above), strongly bisinuate at the base, 
the basal foveee indistinctly indicated ; scutellum moderately large; elytra about as wide as the prothorax 
at the base, exceedingly elongate, narrowing from the base to the apex; anterior coxe contiguous, the 
- BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 2, July 1889. MM 
