STASEAS,—CCLOSTERNINUS. 533 
constricted and narrowed in front; coarsely, confluently punctate, and carinate from the base to the 
apex. Llytra a little wider than the prothorax, subparallel in their basal half; seriate-punctate, the 
interstices seriato-granulate, convex, 3, 5, 7 a little more raised. Beneath sparsely, coarsely punctate. 
Mesosternum arcuate-emarginate. Legs short; femora feebly clavate and sharply unidentate. 
Length 43-53, breadth 2-2 millim. (¢ 2.) 
10 ~2 
Hab. Mexico, Teapa (H. H. Smith), Tapachula (Hége); Guatemaia, Panzos 
(Conradt); Nicaragua, Chontales (Janson); Panama, Bugaba, Caldera, Volcan de 
Chiriqui (Champion). 
Eleven specimens. The dull surface (above and beneath), the short rostrum, and 
the conspicuously maculate base and apex of the elytra, readily distinguish S. picti- 
pennis. In fresh specimens the light-coloured scales on the elytra are rosy-red. 
5. Staseas mexicanus, sp. n. 
Apteromechus (?) mexicanus, Faust, in litt. 
Oblong-ovate, rather shining, black, the antennez and the tips of the tarsi ferruginous; the prothorax sparsely 
clothed with narrow, setiform, brownish or ochreous scales ; the elytra with small scattered patches of 
rather coarse reddish or ochreous scales, which are sometimes condensed into a common, irregular, narrow, 
transverse fascia at the commencement of the apical declivity, the rest of their surface more sparsely 
clothed with brownish or fulvous scales, each interstice with a row of moderately long semierect sete ; 
the under surface and legs sparsely clothed with narrow cinereous scales. Head rugulosely punctate, 
the eyes somewhat widely separated ; rostrum stout, curved, shorter than the prothorax, thickly punctate, 
rugose and subcarizate at the base, smoother in the 2, the antenne inserted at (Q ) or beyond ( ¢) the 
middle, joints 3-7 of the funiculus short, 2 shorter than 1. Prothorax transverse, rather coarsely, 
confluently punctate, and carinate to near the base. LElytra seriate-punctate, the interstices closely or 
sparsely granulate, 3,5, and 7 raised, the others sometimes convex: Beneath sparsely, coarsely punctate. 
Mesosternum arcuate-emarginate. Legs short; femora feebly clavate, unidentate. 
Length 3-5, breadth 14-2} millim. (¢ 9.) 
Hab. Mexico (Koltze, Mus. Dresden), Oaxaca (Hoge); GuatemaLa, San Juan and 
Panima in Vera Paz, Duefias, Capetillo (Champion); Panama, Volcan de Chiriqui 
(Champion). 
Numerous specimens. ‘This insect is very like the smaller examples of S. granulatus, 
but it has the rostrum as short as in S. pictipennis and the eyes are somewhat widely 
separated. The elytral sculpture is variable, the two individuals from Vera Paz being 
very sparsely granulate. 
CaZLOSTERNINUS, gen. nov. 
Rostrum curved, rather short, a little widened at the base and apex, that of the @ transversely sulcate at the 
pase above, the sculpture different in the two sexes; antennz inserted behind the middle of the rostrum, 
the club oblong and compact; eyes transverse, pyriform, well-separated ; prothorax with moderately 
prominent ocular lobes ; scutellum prominent, the cavity large; elytra elongate, narrow, very little wider 
than the prothorax ; mesosternum very prominent, horseshoe-shaped; metasternum long, the episterna 
moderately broad; ventral segments 2-4 equal in length, the sutures straight; legs short, stout, the 
femora subclavate and unidentate ; tibie strongly unguiculate ; tarsi similarly formed in the two sexes, 
the terminal joint thickened and truncate at the tip, the claws simple and curved backwards; body 
elongate, narrow, densely squamose. 
Type, Celosternus longipennis, Boh. 
