320 Coleopterological Notices. 



tion, but as the legs are entirely free I do not think that it can 

 properly be considered identical, especially as the general habitus 

 is quite different. 



The structure of the mesosternum anteriorly reminds us some- 

 what of Phalacrus, but is perfectly similar to the same part in 

 Murmidius ovalis; in both, the fine sutural line separating the 

 sterna is posteriorly angulate, unimpressed and is situated at the 

 middle of the coxal cavities as in Cerylon; it is very feebly marked 

 in the present genus. In Cerylon the mesosternum is very much 

 longer and the prosternal process extends over its surface for a short 

 distance, as before remarked. 



The absence of crural excavations and the imperfectly retractile 

 legs in this genus, together with the corresponding structure as 

 described in Lapethus, seem to prove that the retractibility of the 

 legs is not a character of even tribal importance. In fact the 

 10-jointed antennae and presence of antennal excavations are the 

 only characters of value which separate the Murmidiini from the 

 Cerylonini, and these two intimately related tribes are separated 

 from the majority of Colydiidse by the frontal insertion of the 

 antennas. In this connection it should be stated that in the Both- 

 riderini the palpi are of similar structure, except that the last joint 

 has become larger, but it is still finely attenuate and conical ; this, 

 together with the exposed insertion of the antenna^, indicates a close 

 relationship. 



B. estriatllS n. sp. — Oblong-oval, rather convex, strongly shining, pice- 

 ous ; pubescence consisting of excessively minute, sparse, fine and recumbent 

 hairs growing from the punctures. Head much wider than long, feebly, evenly 

 convex, feebly and coarsely reticulate, very finely, sparsely punctate. Pro- 

 thorax a little more than twice as wide as the median length, slightly narrowed 

 from base to apex, the latter broadly, feebly sinuate, the bottom of the sinus 

 broadly arcuate ; apical angles rather broadly rounded ; base broadly angu- 

 larly lobed in the middle, closely fitted to the base of the elytra throughout 

 the width ; sides nearly straight, arcuate anteriorly ; disk evenly, broadly 

 convex, feebly reticulate, very finely, sparsely punctate, the sides margined 

 with a thick convex bead which extends along the apex as a very fine bead ; 

 base not margined. Scutellum very small, elongate, finely acuminate. Elytra 

 fully three and one-half times as long as the prothorax ; base a very little 

 wider than the base of the latter, the humeri just visibly exposed ; sides 

 parallel and very feebly arcuate ; apex broadly, evenly rounded ; disk evenly, 

 transversely convex, minutely and very sparsely punctate, the punctures 

 evenly distributed but without the slightest trace of serial arrangement. 

 Under surface extremely minutely and sparsely punctate throughout, polished. 

 Length 1.3 mm. 



