266 PROCEEDINGS OF THE NATIONAL MUSEUM vol.84 



nitely riigulose, otherwise punctate, with faint trace of apical carina, 

 pleural carinae absent, spiracles small, elongate. 



Legs rather slender, hind femur fully six times as long as thick, 

 barely two-thirds as long as tibia; inner hind calcarium not or barely 

 reacliing middle of basitarsus. 



Wings: Apical abscissa of radius moderately curved at base, much 

 less than twice as long as basal abscissa; areolet large, regular, sessile, 

 recurrent in middle; second discoidal cell elongate, basal abscissa of 

 subdiscoideus fully a half longer than recurrent, the latter somewhat 

 curved above; nervulus distinctly postf ureal; abscissula nearly twice as 

 long as intercubitella. 



Abdomen polished, distinctly longer than head and thorax together, 

 slender in both dorsal and profile views; first tergite not or barely half 

 as broad as long, second tergite longer than broad at base; ovipositor 

 strongly recurved, sheath nearly as long as first two tergites together. 



Pale lemon yellow with black marldngs as follows: Occiput, nar- 

 row circles around ocelli; spots in frontal scrobes (confluent medially), 

 clypeal foveae, extreme base and teeth of mandibles, the normally 

 concealed posterior part of propleurum, a narrow transverse streak on 

 pronotum, three longitudinal stripes on mesoscutum, scutellar fovea, 

 lateral areas of scutellum and postscutellum, a small spot below front 

 wing, another on speculum, and another in position of sternaulus, pre- 

 pectus in part, sometimes a disconnected streak on each side of meso- 

 sternum, metasternum, mesolcus posteriorly, more or less of the 

 thoracic sutures, first tergite at base and medially, paired clavate spots 

 sometimes confluent apically on tergites 2 and 3, broad basal bands 

 on tergites 4-6, and sometimes sternites partly. Antennal scape 

 largely yellow, flagellum black, reddish below for most of its length. 

 Legs yellow with all coxae and trochanters more or less black basally, 

 front and middle femora more or less black behind, hind femur fer- 

 ruginous below and on inner side, hind tibia pale ferruginous below 

 and apically, tarsi reddish apically. Wings hyaline with stigma and 

 costa yellow, veins brown. Ovipositor sheath black. 



Type locality. — Bernadillo County, N. Mex. 



7V2?e.— U.S.N.M. no. 51800. 



Paratypes. — Colorado Agricultural College. 



Remarks. — Six females, two from the type locality, 1896, B. Brown, 

 and four from Roggen, Colo., May 19, 1934, M. T. James. The 

 Colorado specimens have the hind femur somewhat thicker than in 

 the type, but there is considerable variation in this respect. 



10. EXETASTES PALLIDUS, new species 



Female. — Of same size and for the most part of the same structure 

 as flavus, but differing as follows: Occiput somewhat more deeply 

 concave; extended angle of cheeks even more acute; malar space 



