1897.] NATURAL SCIENCES OF PHILADELPHIA. 373 



CONTRIBUTIONS TO A KNOWLEDGE OF THE HYMENOPTERA OF BRAZIL, 

 NO. 3. SPHEGID2E (sens. lat.). 



BY WILLIAM J. FOX. 



This paper forms a continuation of the reports on the collections 

 of Hymenoptera made by and belonging to Mr. Herbert H. Smith. 

 At least one more paper will follow, on the Thynniidse, which will 

 also contain some additions to the earlier reports. 



Ampulex trigonopsis Sm. 



A single specimen from Chapada (October), I doubtfully refer to 

 this species. It agrees with Smith's description, but there are two 

 large teeth on each side of the projecting carina of the clypeus, of 

 which Smith makes no mention. 



Sceliphron {Trigonopsis) rufiventre Fabr. 



Five specimens from Maruru (April) and Santarem. 



Sceliphron (Podium) denticulatum Sin. 



Chapada (December) ; Santarem. Two specimens. 



Sceliphron (Podium) consanguineum Sm. 



Two specimens from Chapada (March) and Rio de Janeiro (Oc- 

 tober) are doubtfully referred to this species. 



Sceliphron ( Podium) flavipenne Lep. 



Two specimens, 9 • Rio de Janeiro (November) and Santarem. 



Sceliphron (Podium) romandinum Sauss. 



Two examples of this fine species. Santarem (September). 



Soeliphron (Podium) haematogastrum Spin. 



Fourteen 9 and thirteen $ specimens. This species is quite 

 distinct by red legs and abdomen. The latter, however, becomes 

 quite dark in some specimens, and the petiole is sometimes black 

 and varies a little in length ; the point of reception of the recurrent 

 veins by the second submarginal cell is not constant. 



Three specimens differ by having the wings subhyaline, not yel- 

 low, and may prove distinct. Perhaps they represent Saussure's 

 Podium egregium. 

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