46 BULLETIN 85, UNITED STATES NATIONAL MUSEUM. 



HETEROPSYXLA MEXICANA, new species. 

 Figs. 68, 244, 293, 455. 



Length of body, 2 mm; length of forewing, 2.2; width of head, 0.76. 

 General color, light brown to black. 



Head almost as broad as thorax, scarcely deflexed, pmictate; 

 vertex similar to preceding species, not elevated on posterior margin, 

 and less elevated on postocellar regions; gense less swollen than in 

 preceding species, but somewhat bulging roundly on each side of 

 frons; frons small, often scarcely visible, bemg mostly covered by 

 gense. Antennae about two and one-half times as long as width 

 of head. 



Thorax not strongly arched, coarsely punctate. Pronotum rather 

 long, flat, reacliing laterad to a httle below upper margin of eyes; 

 praescutum shorter than in preceding species. Wings hyaline, with- 

 out maculae, about two and a fourth times as long as broad, broadly 

 rounded at apex; first marginal cell slightly smaller than second and 

 different in shape; pterostigma brownish, almost as long as radial 

 sector. 



Genitalia. — Male. — Genitalia rather small; forceps short, about as 

 long as anal valve, deeply divided from near base into an anterior, 

 thin, slightly sulcate process, and a posterior, slender, spiniform 

 process; anal valve simple, curved, slender; pubescence prominent. — 

 Female. — Genital segment moderately long, acute at apex; dorsal 

 valve much longer than ventral, with one long seta on dorsal surface. 



Described from two males and five females collected at Jalapa, 

 Mexico (Crawford), August 28, 1910. 



Type in author's collection. 



HETEROPSYLLA FORCIPATA, new species. 



Figs. 116, lis. 



This species is very closely related to mexicana, differing chiefly 

 and widely in male genital characters. The forceps are nearly twice 

 as long as the anal valve and arcuately curved forward; deeply 

 divided as in mexicana, but the anterior portion more deeply sulcate 

 and forming a groove in which lies the long posterior spiniform 

 process, very acute at apex and as long as anterior part; pubescence 

 very shght. 



Described from one male from Oaxaca, Mexico (A, Koebele). 



Type.—Q'At. No. 18074, U. S. Nat. Mus. 



HETEROPSYLLA CUBANA, new species. 



Figs. 69, 245, 294, 458. 



Length of body, 1.5 mm; length of forewing, 1.6; width of head, 

 0.71. General color, greenish yellow to yellowish brown throughout. 



Head about as broad as thorax, rounded in front, punctate; vertex 

 arcuate on posterior margin but not elevated there, with a prominent 



