Neotropical Vespidae. 381 



two thirds of the length of the top of the eyes ; occiput 

 rounded inwardly, not transverse, weakly margined in the 

 middle, more distinctly (but still not strongly) on the sides. 

 Clypeus very smooth, shining and bare. Front and vertex 

 punctured, but non closely or strongly ; the pro- and 

 mesothorax are as closely, but more strongly punctured; the 

 punctuation on the pronotum is stronger and closer than it 

 is on the mesonotum ; its base is not quite transverse, 

 the middle and sides slightly projecting ; the sides form 

 broad triangles. The scutellum is more strongly, rugosely 

 punctured than the pronotum. Median segment smooth 

 in the middle, the sides somewhat strongly, but not 

 closely punctured ; it has a steep slope and no keel 

 down the middle. Abdomen closely, but not strongly 

 punctured. Eyes pilose. Malar space very small. Man- 

 dibles smooth and shining. Second abscissa of radius 

 one fourth of the length of the 3 rd . Abdomen wider than 

 the thorax. Third antennal joint twice the length of the 4 th . 



This species is not unlike C. mexicanus Cam. in size 

 and colouration ; the latter may be known by the apex 

 of the scutellum being transverse and more obliquely 

 sloped and not projecting over the metanotum, by the 

 sides of the median segment not projecting above; and 

 by the abdomen being much more strongly and distinctly 

 punctured. It may be referred to the group of nitidus*. 

 There is not much appearance of pilosity ; but possibly 

 the pubescence may be dense in fresh examples. 



2. Chartergus flavofasciatus sp. nov. $ or $. 



Black, densely covered with fuscous pubescence, 

 denser and longer on the median segment and on the 

 abdomen; on the face and clypeus the pubescence is 

 short and silvery ; the scape and basai 3 or 4 joints of 

 the flagellum, the head, except a large, oval, broader than 

 long, mark extending from shortly behind the ocelli to 

 half way down the front, the thorax, except for a large 

 mark, trilobate at the base, on the mesonotum, and the 

 basai two-thirds of the abdominal pétiole, pale fulvous 

 yellow, the legs being also of this colour. Wings fuscous ; 

 the anterior hâve a yellowish cloud, extending from the 

 base of the apical third of the costa to the base of the 

 stigma ; the hind wings are almost hyaline ; the stigma 



Cf. Ducke, Boletim do Museu Goeldi, IV, p. 325. 



