104 Mr. F. P. Paseoe on some neiv or little-l-nown 



Rather depressed, dark browu, toiueutose; sides of the prothorax, 

 and a large patch on the disc of the elytra, which, commencing at the 

 base, is contracted in tlie middle and again expanded behind, and a 

 smaller spot at the apex, gTevish -white ; disposition of the tubercles 

 (which are all more or less conical) nearly as in the last; antenna?, 

 palpi, and legs dull reddish-brown ; under surface dark brown, covered 

 with numerous small tubercles, and but slightly pubescent. Length 

 '2\ lines. 



The few characters which Erichson has given of Rechodes accord 

 perfectly well with the insects described above, except that the last 

 joint of the maxillary palpi is scarcely secmiform, although very 

 broatl and truncate. Rechodes is closely allied to Ulonotus and En- 

 dopJdceus. To the former of these genera, M. Lacordaire refers, and 

 I think correctly, BoUtopJiagus cmtarcticus, "WTiite ; and I would also 

 refer to it Asida sen-icollis, Hope. The genus Pnstoderus of the 

 latter author, founded on the Dermestes scaber, Fab., is probably 

 identical with Ulonotus. 



DisTAPHYLA [Coljdiidse]. 



Head small, transverse, scarcely visible from above, slightly dilated below 

 the eyes, with a broad antennary groove beneath. Antennae short, stout, 

 ll-jointed, the two basal incrassated, the third longer than the rest, 

 which are very transverse, the last two forming a short compressed 

 club. Eyes large, round. Mandibles bidentate at the apex. Palpi 

 robust, the teiTninal joint of the maxillary elongate, subcylindric, of 

 the labial obovate; maxillary lobes nan-ow, ciliated. Labimn veiy 

 small, subcordate, fringed with long cilia. Mentuni large, naiTowed 

 in front, rounded and dilated at the sides. Prothorax nearly qua- 

 drate, very irregular anteriorly, the margin granidate and setose. 

 Elytra elongate, subcylindrical. Legs short ; coxae not contiguous ; 

 tibife gi-adually enlarging at the extremity, terminated by two small 

 spurs, and bordered externally -with a row of stiff setae ; tarsi with the 

 three basal joints short, hairy below. Prosternum rounded posteriorly, 

 the mesosternum depressed. 



Judging from the position which Erichson has assigned to his 

 genus Pldceoncmus, this must be a near ally, although it cannot be 

 by any means likened to Colohicus. 



Distapliyla mammillans. (PI. VIII. fig. 4.) 



D. subcylindrica, picea (vel rufo-brunnea), fortiter punctata, setosa ; pro- 



thorace antice bigibboso. 

 Hab. Brazil (Rio; Para). 



Subcylindrical, pitchy-brown (or, in the Rio specimens, reddish- 



