606 SEERICOENIA. 



patch (angulated within) and some irregular markings at the sides beyond the middle, at the base, and 

 along the suture flavous ; the antenna) piceous, with the three basal joints testaceous ; the legs piceous, 

 the tibiae, the tarsi, and the base of the femora testaceous ; the upper surface clothed with very fine, 

 pallid, sericeous pubescence, the elytra also with scattered intermixed longer hairs, apparently arising 

 from 'small bare spots. Head, prothorax, and scutellum densely, very minutely punctate ; antennae 

 moderately long, joints 2 and 3 short, subequal, 4-11 gradually decreasing in length; prothorax short, 

 rapidly narrowing from the base, slightly dilated at the sides ; elytra broadly explanate and acutely 

 margined at the sides, densely, minutely punctate, with distinct, scattered, intermixed coarser punctures, 

 and indications of a fine impressed line near the suture. 

 Length 3, breadth 2 millim. 



Hab. Guatemala, Torola and Paso Antonio (Champion). 



Two examples, both from the low country bordering the Pacific Ocean. This peculiar 

 species approaches 0. obliqua, but it is very much smaller, and the general shape is 

 more rounded. The elytra have asymmetrical markings ; the longer hairs, which are 

 easily abraded, appear to arise from very small bare spots ; the intermixed coarser 

 punctures are quite distinct. The thorax is less explanate at the sides than in 

 0. obliqua and its allies. 



6. Or a nigricornis. 



Oval, rather depressed, shining ; fulvo-testaceous, the antenna? black, with the three basal joints testaceous ; 

 legs testaceous, the tarsi infuscate, the posterior femora reddish ; the upper surface finely pubescent. Head, 

 prothorax, and scutellum thickly, very finely punctate ; antennas moderately long, slender, joint 3 small, 

 about as long as 2, 4-11 elongate, the outer joints slightly decreasing in length ; prothorax slightly 

 explanate and acutely margined at the sides, very short, rapidly narrowing from the base; elytra 

 flattened on the disc, slightly explanate and acutely margined at the sides, thickly, finely, uniformly 

 punctate, the punctuation coarser than that of the prothorax, and with indications of a fine impressed 

 line near the suture. 



Length 4, breadth 2| millim. 



Hab. Panama, Bugaba (Champion). 



This species agrees with 0. discoidea and its allies in the form of the hind coxae and 

 also in the explanate margins of the elytra ; but differs from them in the more coarsely 

 punctured elytra, without trace of intermixed coarser impressions. It is smaller, 

 narrower, and less depressed than 0. discoidea. One example, probably quite mature. 



sci:rtes. 



Scirtes, Illiger, Mag. vi. p. 301 (1807) ; Guerin, Spec, et Icon. gen. des Anim. Art. livr. i. no. 3, 

 p. 1 (1843) : Tournier, Dascillides du Bassin Leman, p. 83 ; Horn, Trans. Am. Ent. Soc. 

 viii. p. 101. 



The numerous species here referred to Scirtes agree in the following characters : — 

 Posterior coxae quite contiguous along the median line, extending over the intercoxal 

 process of the abdomen, very abruptly dilated inwards, the inner portion forming a 

 subquadrate plate ; middle coxae separated by a narrow lamina ; prothorax and elytra 

 (except in S. oblongus) narrowly margined. They have the long upper spur of the 



