﻿AMERICAN PSYLLIDAE II 353 



eniarginate at median suture; discal area witli a shallow transverse de- 

 ]jre.ssion about midway ; not raised plate-likc ; vertex quite deeply 

 cmarginate anteriorly at median suture ; anterior ocellus in emargination at 

 angle of facial cones, visible from above. Facial cones short, broadly rounded 

 at tip, moderately divergent, subhorizontal and visible from above, cpiite 

 densely pubescent. Antennae inserted on frons and base of facial cones, above 

 and without; two basal segments large, remaining segments filiform, yel- 

 lowish except apical segment black. Labrum very prominent, with a seta on 

 ventral surface. 



Thorax arched, slightly saddle-shaped, finely punctate, moderately pu- 

 bescent. Pronotum short, depressed below dorsulum and head ; dorsuluni 

 strongly ascending in anterior half, posterior half and part of scutum de- 

 pressed, posterior portion of scutum again ascending somewhat ; entire dorsal 

 surface pubescent. Wings hyaline, about two and one-half times as long 

 as broad, broadest across first marginal cell, acute apically; second marginal 

 cell very much longer than first; fourth furcal almost as long as second 

 cubital ; radius slightly longer than second cubital ; fourth furcal terminating 

 at apex of wing or slightly below it. 



Female. — Abdomen quite stout. Genital segment fully half as long as 

 abdomen, acute apically, quite densely pubescent ; dorsal plate slightly longer 

 than ventral, less acute ; genital pore elliptical, entirely exposed, almost one- 

 fourth as long as dorsal plate. Male. — Genital segment short, distinctly 

 deflexed; claspers arched, laterally opposed, simple; anal segment produced 

 dorsally into a short projection, concave toward claspers, broadest at distal 

 end, appearing from above bicornate. 



Redescribed from thirty males and females, collected by G. R. Pilate 

 in Louisiana, and three females collected by Nathan Banks at West Falls 

 Church, Virginia. 



This species was first described by Ashmead in 1881 from specimens taken 

 in Jacksonville, Florida. His description as published in the Canadian En- 

 tomologist, Vol. XIII, page 222, was wholly inadequate to distinguish it from 

 any other species. I was obliged, therefore, to omit that from the synopsis of 

 Triozinae. Since the publication of the synopsis I have received three deter- 

 mined specimens of this species from Mr. Nathan Banks. Careful compari- 

 son of these specimens with the type specimen of T. latipeiinis Crawford proves 

 that they are identical. The name Trio:;a latipcnuis, therefore, must drop 

 into synonymy. 



Trioza frontalis ti. sp. 

 (Figs. 128 O; 129 E: 130 X.) 



Length of bofly, 2.1 mm.; length of forewing. 3.2 mm.; greatest width, 

 1.2 mm.; width of vertex between eyes, .41 mm.; with eyes, .71 mm. General 

 color, brownish red, abdomen brownish. 



Head slightly deflexed, with eyes about as broatl as thorax, finely punctate. 

 Posterior margin of vertex arcuate, ridged narrowly and not emarginate at 

 median suture ; discal area with an oblique sulcate depression extending 



