Pomona College Journal of Entomology 453 



visible. Uorsuluni ascending, quite small. .Metasternal spurs ([uitc small. 

 ll'iiii^s small, hyaline, hut very faintly coriaceous; less than three times as long 

 as hroad, broadest across first furcal. rounded a|)ically but not broadly so; 

 radius as long as second cubital; first cubital about twice the length of first 

 furcal; fourth furcal fully half as long as second cubital; marginal cell> sub- 

 e(|ual ; venation rather inconsjiicuous. 



Male. — .\bdomen long and slender, (k-nital segment mediuiu in size; genital 

 plate rounded; claspers bicusijidate, the posterior cusp longer, slightly more 

 acute, glabrous ; the remainder of surface of clas|)ers sparsely |nibescent : anal 

 valve (|uite large, broad at base, distally more slender and tenuinating in an 

 uniforndy tapering e])ii!hysis ; sparsely pubescent. FcntaU'. — Abdomen very 

 long, less slender than in male. Genital segment moderately large ; iKith 

 l)lates of almost e(|ual length, (juite acute: genital |Mire small; sparsely 

 [jubescent. 



Described from one male and one female collected by T. 1). .X. Cockerell in 

 Colorado. J'ood plant: Mcdicas^o sali'iV (alfalfa). 



Epitrioza oaxacensis n. sp. 

 (Fig. 152. I'; l.=;4. (); 155. Ri 



Length of body 1.9 mm.; length of forewing 3.3 lum. ; greatest width \.2 

 mm. ; width of vertex between eyes .45 mm. ; with eyes .70 mm. General color 

 light green with a tinge of yellow. Body medium in size. 



Head scarcely dellexed. small, punctate ; posterior margin of vertex arcuate, 

 very slightly elevated narrowly ; vertex not raised plate-like ; discal area with 

 a distinct fovea on each side near posterior margin and a short sulcate de- 

 pression extending toward eye. .Anterior margin somewhat eiuarginate at 

 median suture. Facial cones reduced to globose lobes, very slightly angulated 

 on inner luargin ; slightly visible from side, sparsely pubescent; labrum visible 

 from in front below facial cones, .\ntennx inserted on frons and base of 

 facial cones sublaterad. 



Thorax moderately archcfl. broader than head including eyes, (|uite coarsely 

 ])unctuate ; pronotum short, arched, scarcely depressed below head and dor- 

 fulum, broader at pleurite than dorsally ; propleuritcs obliquely set ; pnepimeron 

 small ; forecox.x moderately large, almost entirely visible from in front of 

 mcsepisternum. Dorsulum moderately long, usually very narrow, occasionally 

 normally broad, rounded cephalad. Wings rather large, hyaline, about two 

 and a half times as long as broad, broadest across first marginal cell, quite 

 broadly rounded apically ; radius as long as second cubital ; first cubital just 

 twice the length of first furcal; fourth furcal slightly less than half the length 

 of second cubital ; marginal cells subequal ; one specimen presents the anomaly 

 of the furcation distally of the radius of both primary wings. 



Fcntali'. — .Abdomen moderately stout. Genital segment long, slender ; dorsal 

 |)late slightly longer than ventral, equally acute but less slender ; genital pore 

 small, elliptical ; pubescence s|)arsc and brief. 



Described form four females collected by D. L. Crawford at Oaxaca, Mex. 



