1917.] 153 



2- Anteniiiie shorter and more slender, very feebly serrate, joint 11 

 equalling 9 and 10 united ; eyes much smaller, well separated ; elytra -without 

 opaque lateral patch. 



Hah. : Brazil {Iliers, in 3Ius. Oxon. id?), Petropolis (Dr. Sahl- 

 herg, Dec. 18i.9 : type, d ). 



Two males in the Oxford Museum are referred to D. serraticornis 

 Makl., described from a single example with mutilated antennae, and 

 obvdousl}^ 6 ; and four females in the same collection doubtless belong 

 here. They have the head and prothorax piceous or nigro-piceous, the 

 el^'tra fusco-castaneous, and the antennae, palpi, and legs rufo-testaceous ; 

 the prothorax closely impressed with intermixed coarse and fine punc- 

 tures ; the eh'tral interstices almost flat, each with a series of somewhat 

 closely placed small setigerous punctures preceded by a very minute 

 tubercle ; the body and legs thickly clothed with long, fine, bristly 

 hairs. The S , except as regards the form of the antennae and anterior 

 legs, is very like D. (^Barsenis) fulvipes Pasc. 



18. — Disema melanostigma, n. sp. 



S . Moderately elongate, broad, widened posteriorly, somewhat depressed, 

 rather dull; piceous, the head (the eyes excepted), prothorax, and scutellum 

 rufo-testaceous, the opaque elytral patch black, the antennae and under surface 

 ferruginous or obscure ferruginous ; clothed, the legs included, with scattered 

 bristly hairs. Eyes extremely large, contiguous. Antennae long, moderately 

 stout, somewhat feebly serrate, joint 11 rather longer than 9 and 10 united, 

 a>pBrate on its inner face. Prothorax transverse, slightly wider than the head, 

 moderately rounded at the sides, constricted before the thickened basal margin ; 

 sparsely impressed with intermixed coarse and tine punctures, canaliculate 

 down the middle anteriorly, and triangularly depressed at the base. Elytra 

 broad, rapidly widened to the middle, and arcuately narrowed thence to the 

 apex ; tinely crenato-striate, the dorsal interstices broad, convex, and (2 ex- 

 cepted) bearing scattered setigerous impressions ; tLe opaque lateral patch 

 lai'ge, oblique, elongate, extending between the striae 4-10. Ventral seg- 

 ment 5 uninipi-essed, truncate at the tip, incompletely covering the genitalia. 

 Anterior tibiae feebly sinuate ; intermediate femora thickened towards the 

 tip, sulcate beneath ; posterior femora simple. 



Length 8|, breadth 05 mm. 



Hah. : Amazons, Ega {H. W. Bates), 



One male. Recognizable by its moderately elongate, broad,, depressetl 

 form, red head and prothorax, simple legs, and feebly sen-ate antennae,, 

 the elytra with comparatively few setigerous impressions (those on the 

 second interstice obsolete) and a very large oblique opaque patch. The 

 similarly coloured D. collai'is Makl., is described as having angularly 

 dilated posterior femora, twisted intermediate tibiae, etc, in d" . 



