50 PROCEEDINGS OF THE NATIONAX, MUSEUM vol.80 



costa and stigma yellow ; antennae yellow, the basal flagellar segments 

 not darker. 



Type.— U.S. 'iHM. No. 43493. 



Type locality. — Dallas, Tex. 



Remarks. — Described from a single specimen collected April 17, 

 1908, by F. C. Bishopp. 



36. MACROCENTRUS UNIFORMIS Provancher 



Macrocentrus uniformis (Cresson) Provanchek, Nat. Can., vol. 12, p. 173, 1880. 



Type. — In the Museum of Public Instruction, Quebec, Canada. 



Differs from all other Nearctic species in its very short ovipositor, 

 which is shorter than the height of the apical truncature of the abdo- 

 men. It agrees in this as well as in all other important respects with 

 the genotypes of Doliehozele Viereck and Pamscazele Enderlein, 

 the synonymy of which has been discussed earlier in this paper. 

 Except for the decided difference in the ovipositor it rather closely 

 resembles texanus^ being readily separable, however, by the differ- 

 ences mentioned in the key and in the description of that species. 



A large species, ranging in length from about 7 to 10 mm. Head 

 transverse, wider than thorax; temples and cheeks convex, not re- 

 ceding directly behind eyes ; eyes prominent, diverging a little below ; 

 face at least one and one-half times as broad as long; malar space 

 as long as basal width of mandible ; mandibles stout ; maxillary palpi 

 very long, the longest segment longer than first segment of antennal 

 flagellum; labial palpi much longer than face; antennae more than 

 one and one-half times as long as the body, about 50-segmented. 



Thorax rather short, deep, mostly smooth and shining; prescutum 

 prominent; propodeum more or less transversely rugulose, smooth 

 basally at least at sides ; pleura smooth ; metapleural tooth prominent, 

 acute; legs very slender; posterior coxae long; longer calcarium of 

 hind tibia much more than half as long as basitarsus in the male, 

 in the female usually three-fourths as long, the basitarsus being 

 relatively longer in the male than in the female; wings very large 

 and broad; stigma elongate, radius arising from beyond its middle; 

 radial cell very nearly attaining extreme apex of wing; first cubital 

 cell large, very nearly or quite as long as first discoidal; second 

 abscissa of cubitus more than half as long, sometimes as long, as re- 

 current vein ; nervulus only slightly postf ureal ; submedian cell wid- 

 ened at apex and entirely glabrous; first brachial cell also glabrous 

 basally; mediella twice as long as lower abscissa of basella, which is 

 longer than nervellus and about twice as long as upper abscissa of 

 basella; radiella strongly sinuate, the radiellan cell very narrow at 

 the middle. 



