^78 PkOCEEDINGS OF THE NATIONAL MUSEUM. vol.45. 



margin nearly truncate; inner margin of the eyes strongly converging 

 toward the clypeus; supraclypeal area flat; supraclypeai foveas 

 poorly defined; middle fovea deep, punctiform, circular in outline; 

 frontal fovese punctiform, circular in outline, slightly above the 

 middle fovea; antennal furrows represented by broad, shallow de- 

 pressions above the frontal fovese, ocellar basin obsolete ventrally 

 but indicated dorsally by the ridges converging behind the anterior 

 ocellus; postocellar area defined laterally by elongate furrows; posto- 

 cellar furrow obsolete; postocellar line slightly shorter than the 

 ocellocular line; antennae long and slender, pedicellum about twice 

 as long as the apical width, third antennal joint about one-fourth 

 longer than the fourth; thorax nonnal; stigma slightly broader near 

 the subangulate base, gently rounded to the apex; third cubital cell 

 decidedly longer than the second; transverse median beyond the 

 middle of the discoidal cell; legs normal; sheath very narrow, straight 

 above, truncate apically, oblique below to the rounded apex. Black; 

 clypeus, labrum, pronotum, tegulae, first perapteron, anterior margin 

 of the prepectus, dorsal two-thirds of the mesepisternum, four an- 

 terior legs except a spot at the apex of the femora above to the 

 apices of the tibiae and the intermediate tarsi, and the trochanters 

 white; propodeum and abdomen except the two apical segments red- 

 dish yellow; wings dusky hyaline; venation black. 



Rio Charape, Peru. Described from 1 female collected September 

 12, 1911, by C. H. T. Townsend. 



Type.— Ca.t. No. 15311, U.S.N.M. 



Genus STROMBOCEROS Konow. 

 Subgenus NEOSTROMBOCEROS Rohwer. 



The type of this subgenus has the clypeus arcuately emarginate. 

 To use the character of the clypeus as generic or subgeneric will 

 make it necessary to add a new subgenus, which at present seems 

 unwise. The original description should, therefore, be amended to 

 read: Clypeus truncate or arcuately emarginate. 



STROMBOCEROS (NEOSTROMBOCEROS) METALLICA Rohwer. 



This species is evidently related to Stromhoceros cencJiralis Konow, 

 •which Enslin says is a synonym of alhicomus Konow, but may be 

 separated from cenchralis by the shape of the sheath. Konow 

 describes the sheath of cenchralis as "subacuminate." The sheath 

 of metallica is truncate apically. 



STROMBOCEROS (NEOSTROMBOCEROS) CffiRULEICEPS (Cameron). 



Clypeus truncate. Enslin considers csBruleiceps (Cameron) to be 

 synonymous with Isevis Konow. He may be correct; I have not 

 seen the type of either species, but a species which agrees with the 



