8 PROCEEDINGS OF THE NATIONAL MUSEUM vol.74 



spot on mesoscutum, scutellum and postscutellum, subalar tubercle, 

 spot below hind wing, lower part of mesopleurum only partially sep- 

 arated from sternum by a black streak along sternaulus (prepectus 

 black) ; upper and lower divisions of metapleurum largely, and a 

 trifoliate spot covering entire apical slope and position of areola 

 on propodeum; coxae and basal joint of trochanters yellow and 

 black; legs otherwise pale testaceous except hind tarsi, which are 

 yellow with extreme base testaceous and apical two joints blackish; 

 wings hyaline, faintly infumate at apex, venation blackish, stigma 

 reddish ; all tergites broadly yellow laterally and all but last apically, 

 first also basally. 



Male. — More slender than female with malar space shorter, face 

 narrower, thorax more slender; antennal annulus centering on about 

 the eleventh "joint ; yellow of head, thorax, and legs somewhat more 

 extensive; hind tibia at apex and basitarsus at base black, tarsus 

 excepting claws otherwise white; abdomen narrower, first and sec- 

 ond tergites three or more times as long as broad at their junction, 

 beyond second tergite more or less red with apical yellow bands less 

 distinct and sometimes obliterated. 



The type is from Kansas. 



The National collection specimens bear data as follows : One female, 

 Lawrence, Kans., August 3, 1896, Hugo Kahl; one female, northern 

 Illinois; one female, Pennsylvania; one female, French Creek, W. 

 Va., reared from larva of PseudobicUon unicolor under Quaintance 

 No. 1285, F. E. Brooks; one female, one male, Victoria, Tex., Hunter 

 No. 267, A. C. Morgan ; one female, Calvert, Tex., G, H. Harris ; one 

 male. Liberty, Tex., March 18, 1906, E. S. Tucker; one male, Jack- 

 sonville, Tex., October 11, 1905, C. R. Jones; one male, Texas, Bel- 

 frage; two males. Piano, Tex., reared December 12, 1908, from 

 Euyogonius vestitus Say under Hunter No. 1698, E. S. Tucker; one 

 female, Gainesville, Fla., "eel. No. lc-5c," H. L. Dozier; one male, 

 Palm Beach, Fla., H. G. Dyar. 



MESSATOPORUS, new genus* 



Clypeus broadly truncate at apex, mutic; labrum prominent; 

 mandibles long and apically very narrow, upper tooth larger and 

 longer than lower; head strongly narrowed behind ej'es, cheeks not 

 swollen ; eyes large and prominent, malar space very short ; antennae 

 as long as body, slender, scape deeply obliquely truncate, flagellum 

 with basal joints long and slender, others gradually shorter toward 

 apex, flagellum apically sometimes flattened; especially in female; 

 thorax much deeper than broad, notauli deep, nearly parallel for 

 most of their length but curving sharply posteriorly and meeting in 



< From /teo-craT-os = quite in the middle, and 7ropos= opening, referring to the location of the spiracles 

 of the first abdominal segment. 



