EEVISIOX OF THE GENUS EXETASTES — CUSHMAN 259 



mandible narrow, nearly twice as long as broad at base; occipital and 

 hypostomal carinae meeting close to base of mandible; eyes distinctly 

 divergent below, shorter than width of face; postocellar hne longer 

 than ocellocular line and nearly twice diameter of a lateral ocellus; 

 antenna slender, fiUform, very slightly tapering, 45- to 47-jointed, first 

 joint of flagellmn twice as long as second. 



Thorax short and stout; notauli absent; scutellum elongate trian- 

 gular, strongly convex longitudinally, discally more sparsely and its 

 lateral areas more coarsely pimctate than mesoscutum; propodeum 

 strongly convex both transversely and longitudinally, entirely without 

 carinae though with a shallow longitudinal impression medially. 



Legs, especially tibiae and tarsi, slender; hind femur little more 

 than two-thirds as long as tibia and hardly reaching apex of abdomen ; 

 inner hind calcarium not nearly reaching middle of basitarsus; apical 

 joints of tarsi very slender, claws slender, weakly curved, fourth joint, 

 of hind tarsus nearly as long as fifth. 



Wings: Apical abscissa of radius strongly curved at base, only 

 about a half longer than first abscissa; areolet large, sessile, second 

 intercubitus nearly straight, recurrent in middle; second discoidal cell 

 broad, the discocubitus strongly curved with trace of ramellus, basal 

 abscissa of subdiscoideus distinctly though slightly longer than the 

 strongly flexed recurrent; nervulus strongly postfurcal; abscissula 

 nearly twice as long as intercubitella. 



Abdomen broad, fusiform, very weakly compressed at extreme apex; 

 first tergite triangular, as broad as long, finely and densely punctate ; 

 second tergite much broader at base than long, weakly punctate at 

 base, gastrocoeh distinct, transverse; abdomen othermse pohshed; 

 ovipositor slender, shghtly recurved, sheath distinctly longer than 

 first tergite. 



Black, with yellow as follows: Apical portion of clypeus; some- 

 times a small spot in middle of face; inner orbit from bottom to top, 

 where it curves mesad and ends in a point behind the lateral ocellus ; 

 outer orbit triangularly broadened below, where it is nearly confluent 

 with a small spot on cheek at base of mancUble; two narrow stripes 

 on mesoscutum, broadening anteriorly and slightly so posteriorly; 

 scuteUum largely ; postscutellum ; more or less distinct spots on sub- 

 alar tubercles and on each side of propodeum toward apex; spots on 

 anterior face of front coxa and dorsal face of hind coxa; broad apical 

 margins of tergites and venter except sternites; tegulae, humeral 

 angles of pronotum, and radices of wings stramineous; legs beyond 

 coxae largely ferruginous, trochanters black except narrow apical 

 margin of basal joint and dorsal and ventral surfaces of apical joint; 

 ah femora blackish within, the front and middle femora yeflow- 

 striped anteriorly. Wings hj'aline, venation blackish, stigma paler, 

 with base more or less yellowish. 



126981—37 2 



