A. A, GIRAULT, 11 



ent in the abdomen alone, which is plump, regularly ovate, 

 the genitalia sometimes exserted in death. 



Type. — Abbella siibUava species nova, described beyond. 



1. Abbella subflava species nova. 



Female. Length, 0.65 mm. ; moderate in size for the subfamily ; vari- 

 able. General color pale lemon yellow ; pedicel and basal club joint of 

 the antennae distinctly darker, almost dusky ; dorsal and ventral aspects 

 of the scape dusky, but variable ; lateral aspect of the thorax marked 

 with dusky, forming an interrupted and broken rectangular dusky area 

 involving the whole lateral aspect of the thorax and extended cauded 

 along the abdomen in the shape of a spot on each segment in the 

 dorso-lateral aspect, forming a broken longitudinal line on each side; 

 a dusky line obliquely across ventral ends of the eyes, paler at the eye 

 apex ; legs paler, the distal tarsal joint as usual darker ; scape paler, 

 concolorous with the legs. Eyes and ocelli bright red. Wings hyaline, 

 with the exception of a conspicuous substigmal fuscous spot of the 

 fore wings which is about three times the size of the stigmal knob and 

 oval in shape. Venation pallid yellowish. Ovipositor concolorous, 

 not exserted. 



Sculpture of the body very delicate, opaque. Abdomen conic-ovate 

 as long as the head and thorax combined. Fore wings not short and 

 broad, moderately narrow, but not as narrow as in the genus West- 

 woodella, moderately, loosely pubescent, the cilia soft, consisting of 

 about from 8 to 14 longitudinal lines counting across the widest part 

 of the wing ; marginal cilia moderately long, longest at the apex, but 

 there not longer than a fourth of the greatest wing width ; venation 

 straight, the postmarginal vein absent, the stigmal vein short, sessile, 

 ovate, turned nearly at right angles to the marginal vein as in West- 

 woodella. Blade of posterior wings subacumniate, the marginal fringes 

 of the posterior margin very long, those of the cephalic margin short ; 

 in the blade, in addition to the row of cilia along the margins aris- 

 ing from the surface, there is a single long complete longitudinal row 

 in the disk of the wing nearer the caudal margin. Fumated substigmal 

 spot of fore wing with its axis directed proximo-caudad from the stig- 

 mal vein. Lateral ocelli much more than their own width distant from 

 the eye margin, the ocelli in a nearly equilateral triangle. 



Antennae loosely, softly pubescent, the hairs moderately long and 

 sparse. Scape cylindrical, obclavate, subequal to the club in length ; 

 pedicel obconic, much longer and wider than the funicle joints com- 

 bined, longer than any of the joints of the club taken singly but not 

 much longer than half the length of either the club or scape, about 

 two-thirds the length of either the scape or club, moderately stout, at 

 least twice longer than it is broad at apex ; ring-joint minute, distinct; 

 joint 1 of funicle hemispherical, its apex truncate, somewhat obliquely 



TRANS. AM. ENT. SOC. , XXXVII. 



