3oo H. Friese. 



castaneo, nitido, planato, sat dense rugosiuscule punctato, apice truncato, labro aureo- 

 fulvo villoso; thoracis disco scutelloque (in uno specimine detrito) subnitido valde dense 

 subtiliter ac concinne punctatis; abdominis segmentis 5—6 aureo-fulvo fimbriatis, ven- 

 tralibus dense punctulatis. 



y>Centri violaceae Lep. similis esse videtur. 



»Species: de colore jam facile cognoscitur. 



»Peru (Pebas et Yurimaguas ad Amazonas), 4 §.« 



Mir liegt ein typisches $ vor; durch den überall roth gefärbten und ebenso be- 

 haarten Körper steht diese Form einzig da; im Mus. Paris i 9 von Peru. 



93. Centris diffonnis Sm. 



1854. Centris diffonnis Smith, $, Catal. Hymen. Brit. Mus., II, pag. 374. 

 ?i865. Centris cormita Cresson, 9, Proc. Entom. Soc. Philadelphia, IV, pag. 194. 



»9. Head and thorax black, the flagellum beyond the 3. Joint fulvous beneath; 

 the clypeus short, transverse and elevated, its anterior portion vertical, having a trans- 

 verse pale testaceous depression; the labrum pale testaceous, having 2 longitudinal 

 fuscous stripes; the mandibles large, very broad at their base and armed above with a 

 stout tooth, their apex bidentate, having a longitudinal pale testaceous stripe; the cheeks 

 densely clothed with white pubescence; between the antennae and on each side of the 

 face below their Insertion, a little white pubescence, that on the vertex black. Thorax 

 clothed with fuscous pubescence at the sides, beneath it is cinereous; the legs dark rufo- 

 testaceous, the posterior pair ferruginous; the tibiae and basal Joint of the tarsi densely 

 clothed exteriorly with bright fulvous pubescence; the anterior and intermediate tarsi 

 have a fulvous pubescence; the wings smoky. Abdomen ferrugineous, the base having 

 a little cinereous pubescence, that at the apex ferruginous. Long. 9 lines (= 19 mm.). 



»Brasil (Rio Tapajos).« 



Centris difformis liegt mir von Venezuela (St. Parime) und Espirito Santo (Leo- 

 poldina, Michaelis) vor; die Art ist leicht kenntlich an ihrer Mandibel- und Clypeus- 

 bildung, trotzdem wurde sie von Cresson wieder als n. sp. — cornuta — von Cuba be- 

 schrieben und sogar ein n. g. Gundlachia gegründet; man vergleiche die folgende Art. 



Im Mus. Paris i 9 von Cayenne. 



94. Centris cormita Cress. 



1865. Centris? cormita Cresson, 9, Proc. Entom. Soc. Philadelphia, IV, pag. 194. 



»Black; thorax, except disk of metathorax, base and apex of abdonien, and poste- 

 rior tibiae, clothed with ochraceous pubescence; disk of mesothorax, and rest of legs, 

 clothed with black pubescence; head large, quadrate; clypeus short, transverse, with a 

 stout incurved tooth on the middle; labrum forming a very large, flattened plate, pass- 

 ing beneath the mandibles, which are long and cleft at tips; most of clypeus, and a 

 stripe down each side of labrum, whitish; abdomen narrow; wings subhyaline. 



»9. Head large, quadrate, black, polished; cheeks and occiput broad; ocelli 

 arranged in a slight curve in a subtriangular depression on the vertex, which is promi- 

 nent in front of ocelli; eyes ovate, moderate; face very short, clothed with short ochra- 

 ceous pubescence, mixed with black on the posterior middle; clypeus short, very trans- 

 verse, emarginate on each side, with a large, very prominent, incurved, subacute tooth 

 on the middle, pale yellowish-white, the anterior and posterior margins and the tooth 



