190 PROCEEDINGS OF THE NATIONAL MUSEUM. 



Segment three clavate; four fusiform; live and six becoming- more 'j 

 slender and less fusiform; seven cylindrical; eight sharply conical. 

 Segment one and base of two dark brown; tip of two, seven, and 

 eight yellowish brown; intermediate segments pale yellow. Spines 

 pale and weak; sense cones short and blunt. 



Trothorax short, only about three-fourths as long as head; fore and 

 hind margins nearly parallel and curving backward; one stout spine 

 at each angle, one in middle of sides, and one on each side between , 

 those at the angle and the median line on both fore and hind margins; 

 hind angles appear to entirely cover the fore coxte as a rule; each fore 

 coxa bears one stout spine. All these stout spines are blunt but not 

 kno])bed. Sides of pterothorax full and smooth; fore angles oblique; 

 color of thorax uniform dark lirown or yellowish brown, more or less 

 irregularly mottled with dark red. Wings present, narrowed in mid- 

 dle, transparent except at base, where the fore wing bears three long 

 spines upon the remnant of the single median vein. Fringes long, 

 single, except near end of hind fringe of fore wing where it is double 

 for ten or twelve hairs. Legs moderately long and slender; fore 

 femora only slightly thickened; fore tarsus one segmented and armed 

 with a tiny tooth. All femora and middle and hind tibit« dark brown; 

 middle and hind tarsi slightly yellowish or grayish brown; fore tibias 

 and tarsi bright yellow like middle of antenna?; fore tibias shaded ; 

 a little with brown toward their bases outside. One long slender ij 

 spine near base of each fore femur below; each fore coxa with one i 

 long spine. 



Abdomen broadh^ joined to metathorax and but slightl}' wider, , 

 widest at base but less than twice as wide as head; segments more or I 

 less imbricate, tapering gradually to tube. Tube about four-lifths as i 

 long as head, tapering slightly, not swollen at base, bearing a circlet ij 

 of spines at tip which are shorter than the tube. All spines on abdom- | 

 inal segments slender and rather faint; color of abdomen quite uniform j 

 yellowish brown to dark brown. In the lightest colored specimens ' 

 the irregular dark mottlings show up most prominentl}^ 



Rcdescribed from eight females. 



Male. — The male agrees quite closely with the foregoing description; 

 it is usually somewhat smaller throughout; relative lengths of antennal ' 

 segments are as follows: 



A _J_- _L ^ A „§_ 1 1 



8.6 11.5 13.5 14.5 14 12.8 12 10 



Fore tarsi are armed with a medium-sized tooth, which is larger than 

 that in the female. Of the four spines standing near the hind edge of 

 the ninth segment, the outer pair is very short, stout, and acute; the 

 abdomen seems to be somewhat more slender than in female. 



Described from four males. 



