( ^51 ) 



white jiuln'sceiiee, Mil' twu spots coiiiii'ctfj wit'n niic uiiul licr Ijy a vestigial fuscous 

 band ; each spot continuous with tiic likewise slinhlly t'uscous side of the elylruni, 

 which is deuser pubescent white at shoulder aud at iilack band ; sutnral region 

 somewhat flattened, but not impressed. 



Length, 4| mm. 



Ilab. S. Antonio da Barra, Bahia, November — December 1888 (Gounelle). 



1 ?. 



~1. Gymnognathus hamatus spec. nov. 



S • P3'gidium and anal sternite rounded ; the former entirely white. Rufesceut, 

 olivaceous, dark pubescent parts cinnamon, less bright than usually. Kostrum a 

 little broader than long, with feebly elevate mesial carina. Frons more than half 

 the width of tlie rostrum. Antenna rufous, prolonged, reaching base of elytrum, 

 thin, club brown. Prothorax half as broad again as long, plicate, convex ; a white 

 mesial vitta thin from apex to middle, then suddenly broader ; an oblique lateral 

 vitta almost completely merged together with the w-hite pvosternal area which 

 extends upwards, a short oblique dorso-lateral vitta from base across carina, not 

 reaching middle ; carina interrupted and conve.x in middle, convex again dorso- 

 laterally, lateral angle 0(1', but strongly rounded off : lateral carina nut quite reaching 

 middle. Elytra depressed at suture ; stripes of punctures hardly visible : a large 

 white area extending at base to lateral margin, including a brown spot on shoulder, 

 a round one on snbbasal callosity, and a small one in middle of suture ; the patch 

 reaching posteriorly to near declivous apex, expanding between the fifth stripes, 

 being deeply sinuate laterally before end, and triangularly emarginate at suture ; 

 an antemedian and a postmedian lateral spot and a large apical one also white. 

 Underside white, with small brown lateral spots on abdomen, last segment with 

 larger spKit. Legs rnfescent, pubescent white, tarsi nigrescent ; hindtibia with 

 small sharp hook at apex (cJ). 



Length, 6| to 7A mm. 



JIab. Serra de Commuuaty, Pernambuco, Januarv to March 1893 (Gounelle). 



2 66. 



'22. Gymnognathus leucomelas spec. nov. 



? . Allied to J'ahraci. Upjjcrside densely pubescent creamy white ; a post- 

 median band on elytra extending from lateral margin obliquely backwards to fourth 

 stripe of punctures black, sending forward towards suture a thin branch, and being 

 continuous with a black anteapical transverse spot which touches suture. Underside 

 glossy black, side of metasternum creamy white, this area extended as a narrow 

 band anteriorly across the sternum ; a vitta of three lateral spots on abdominal 

 segments 3 to 5, apex of femora aud proximal two-thirds of tibiae also white. 



In shape similar io fahraei ; antennae longer, segment 3 twice the length of 2, 

 and 7 twice the length of 8 ; carina of prothorax more deeply concave in middle ; 

 elytra deeper dejiressed at suture, with the fourth interspace subcostate ; underside 

 practically inipunctate, the punctures being very sparse; raesosternal jirocess 

 convex, mesial metasternal process strongly convex. 



Had. Caraea, Minas Geraes, December 1885 (Gounelle), ti/ije ; Espirito Santo. 



2 ? ?. " • 



