256 U- S. NATIONAL MUSEUM BULLETIN 2 09 



pleuron and metapleuron next their coxae, hind corner of thorax, 

 and abdominal markings varying from broad subapical transverse bands 

 on second and following tergites (enclosing a small sublateral rufous 

 spot) to subapical median subquadrate spots on the apical tergites, 

 yellow; antenna rufous, the apical 0.3 (in the cf) or 0.2 (in the 9) 

 infuscate; palpi and tegula yellow and brown; thorax with more or 

 less extensive brownish ferruginous areas, these mostly adjacent to 

 its yellow markings; wings dark brown, or lighter brown in small 

 males, the forewing with an apical pale area; legs colored as in the 

 subspecies robinsonii, except that the front coxa is largely brownish 

 ferruginous. 



Specimens: 9, Meade County, Kans., July 12, 1911, F. X. Williams 

 (Lawrence). 9, Cotulla, Tex., May 12, 1906, F. C. Pratt (Wash- 

 ington). Q(^, 139 (including the lectotype), Fedor, Tex., Mar. 29, 

 1909, Apr. 19, 1904, Apr. 29, 1909, May 6 and 17, 1909, July 10, and 

 Aug. 10, Birlonann (Cambridge), d', McDade, Tex., June 9, 1935, 

 J. E. Gillaspy (College Station, Tex.). 9, Wilson County, Tex., 

 Feb. 6, 1934, C. E. Heard (Krombein). 



This subspecies occurs in Texas and Kansas. 



5. Ceropales elegans Cresson 



Forewing of male 7 to 13 mm. long, of female 8 to 13 mm. long; 

 frons, mesoscutum, and mesopleuron with very fine and dense punc- 

 tures and scattered moderately large punctures; propodeum tumid 

 basally, the basal swelling weakly divided longitudinally by a longitu- 

 dinal groove which is somewhat broadened at the base of the propo- 

 deum; apical half of propodeum flat behind, with very fine dense 

 punctures; subgenital plate semicircular, concave below, the apex 

 weakly retuse. 



Coloration light rufous, with varying amounts of 3^ellow and some- 

 times also with black markings. Antenna fulvous, infuscate at the 

 apex. The subspecies aquilonia is predominately black and yellow. 

 Wings subhyaline to dark brown. 



There are three subspecies, separable on color as idicated in the 

 key and in the descriptions below. 



5a. Ceropales elegans aquilonia, new subspecies 



Male: Forewing 7.2 to 7.8 mm. long. 



Blackish. Face, clypeus, lateral 0.2 of frons, antennal tubercle, 

 narrow postorbital mark, labrum, outer face of mandible, underside 

 of scape and pedicel, large spot over pronotal callus, wide hind margin 

 dorsally and narrower liind margin laterally of pronotum, spot on 

 center of scutellum, postscutellum, small spot on mesoplem-on next 

 to its coxa, large spot on hind corner of thorax, under side of front 

 coxa, ventrolateral part of middle coxa, broad lateral stripe on hind 



