484 MR. H. w. BATES ov [Juiie 17, 



The mesosfcernal process is conical and obliquely inclined as in P. 

 impressa, but it is not so large as in that species. 



DlPLOGNATHA GAGATES, Fabr. 



Macroma congoensis, n. sp. 



M. sulcicolli (ScJicmm) simiUima ; differt inter alia thoracis vitta 

 marginali antice dtlatata maculamqae niqram includente. 



Long. 17 millirn. 



Shining black, legs and middle of the abdomen pitchy red ; fore- 

 head with a large triangular bright yellow spot, the base of which 

 is in front (leaving the clypeus black) and the apex prolonged to 

 the crown. The lateral marginal vitta is ver}' broad in front and 

 tapers rapidly towards the hind angles ; the central yellow vitta is 

 very narrow; the scutellum has in the middle a triangular spot 

 variable in size, and the spot on the pygidium is broad and strongly 

 tridentate behind. On each side of the disk of the thorax there is 

 a large strongly-punctured area, and similar punctures are seen in 

 the dorsal depression, which does not, as in M. snlcicoUis according 

 to Schaum's description, extend to the fore margin. The elytra are 

 strongly but not closely punctured, the punctures gradually changing 

 to transverse scratches near the sides and apex. Underneath, the 

 episterna, the metasternum, the anterior coxa3, and sides of the 

 abdominal segments and posterior coxffi have each a large bright 

 yellow spot. 



Family Peionid^. 



SoBARiTS POG'?ET, Harold, Col. Hefte, xvi. p. 165, tab. 2. fig. 2 ( cJ ). 



Both Mr. Bonny and Mr. Jameson obtained examples of this fine 

 species ou the Aruwimi, where it appears to be not iincommon. 

 It is interesting as belonging to a group (ParilosominaA the chief 

 members of which belong to Tropical America. Pogge obtained the 

 male only ; the female differs in the much shorter antennae, only 

 two thirds the length of the body, the apical joints of which are 

 shortened and thickened, and in the smaller and narrower hexagonal 

 thorax with more prominent lateral spines. 



$ . Elongato-ohlongus, convexus, nigro-velutinus, supra mpite pas- 

 ties elijtrisqne fasciis tribus roseo-rujis, fascia prima {hasali) 

 angusta, fascia tertia {apicali) utrinqne prope apicem nigro- 

 rfiacidata ; abdomine metasternoque medio fulvo-testaceis. An- 

 tennce pcmllo idtra medium eli/trorum. extensce ; articulis granu- 

 latis, S° et 4" hand latioribus, 9°-ll'" abbreviatis et incrassatis. 

 Thorax elytris multo angustior, hexagonus,margine laterali acuto 

 denticulato, spinet mediana valida acuta. 

 Long. 23-32 millim. 



Family Cerambycid.^. 



Ploccederus ? 



A much-damaged example of a species allied to P; denticornis, F. 



