72 Memoirs on the Coleoptera 



half as long as the body, the third joint a third longer than the 

 fourth; prothorax as long as wide, apparently a little longer, widest 

 just before the middle, the sides broadly and strongly reflexed and 

 moderately arcuate throughout, scarcely less so basally, the angles 

 broadly, evenly rounded and obsolete; base transverse, narrower 

 than the very moderately sinuate apex, the apical angles bluntly 

 rounded; surface smooth, polished and sculptureless throughout, 

 the anterior impression angulate though somewhat feeble, the stria 

 fine, biabbreviated ; foveae large, deeply concave, formed externally 

 by the broadly reflexed sides, prolonged anteriorly and parallel to 

 the margin almost to the extreme apex; elytra nearly three-fourths 

 longer than wide, three-fourths wider than the prothorax, oval, 

 gradually rounded behind, with gradually formed but conspicuous 

 sinus; sides feebly arcuate, gradually more so at the humeri; striae 

 not fine, deeply impressed, nearly smooth, the intervals notably 

 convex, the third with three punctures; tarsi long, the fifth joint 

 ciliate beneath but not at the sides. Length (cf) 12.0 mm.; width 

 4.5 mm. Panama, — Gaillard *pananiense n. sp- 



Using the tables of Colpodes given by Chaudoir and Bates, I am 

 unable to identify this species and so conclude that it is undescribed ; 

 at any rate, it will easily be recognized by the rather full description. 



Circinalia n. gen. 

 The species of this genus are of moderate to small size, rather 

 convex polished surface throughout and notably dense integument. 

 The prothorax is subquadrately rounded, with obsolete and broadly 

 rounded basal angles, the sides very finely margined and the fovea 

 smooth and reduced to a small punctiform impression; the surface 

 is subevenly convex, without evident transverse impressions. 

 The elytra are elongate-suboval, with more rapidly rounding 

 humeri, and the hind wings seem to be well developed; the third 

 interval is always tripunctate. The met-episterna are moderately 

 elongate and the legs and tarsi slender, the latter with the external 

 sulci shallow, deeper in the second group. There are two sub- 

 generic groups as follows : 



Pronotal foveae somewhat distant from the latero-basal margin, some- 

 times attended by a moderate impression of the surface; elytral 

 striae coarse, often conspicuously punctate; integuments thicker 

 and denser Group I {punctiformis) 



Pronotal foveae smaller, feebler and very close to the margin; elytral 

 striae very fine, sharply defined and unimpressed; body smaller, 

 more ventricose, having relatively smaller head and prothorax; 

 integuments thinner and less dense Group II (ceruginosa) 



