THE JUMPING PLANT-LICE OR PSYLLID^ OF THE NEW WORLD. 21 



Described from one male and three females from Colorado (C. F. 

 Baker), and one female from Texarkana, Arkansas (E. S. Tucker). 

 This species is apparently related to maculipennis Fitch, an eastern 

 species; the wing venation is quite similar, but the size is markedly 

 different. In the characters of the head and thorax the two species 

 are quite distinct. 



Type-specimen in author's collection. 



LIVIA MACULIPENNIS Fitch. 



Figs. 25, 425. 



Diraphia inaculipennis Fitch '57: 740. — Thomas '79: 14. 

 Livia maculipennis Riley '83: 68. — Patch '12a: 7. 

 Livia hifasdata Provancher '86: 307. 



Length of body 2.8 mm. ; length of forewing 2.9 ; width of head 0.84. 

 General color brown to dark brown. Body rather large. 



Head rather long, about as long as width including only one eye, 

 as broad as pro thorax; vertex long, quite deeply emarginate in front 

 at median line, very coarsely vermiculo-punctate, ascending posteri- 

 orly and outwardly toward posterior ocelh, front margin rough and 

 broken; eyes very compressed, large. Antennae relatively longer 

 than in preceding species, second segment very large and long, one- 

 half as long as flagellum; two apical segments black; terminal setae 

 long. 



Pronotum slightly longer than praescutum, somewhat constricted 

 dorsad. Praescutum small. Wings large, coriaceous, maculated, 

 broadly ovate and broadly rounded at apex, about one and two- 

 third times as long as broad; second marginal cell much larger than 

 first; pterostigma large; with a dark band across wing distad, then 

 a light almost hyaline band subapically about as broad as the apical 

 band; basal half yellowish brown except clavus rather hyaline; light 

 portions with conspicuous brown spots situated mostly on veins. 



Genitalia. — Male. — Genitalia similar to coloradensis . FeTnale. — 

 Abdomen large; genital segment about as long as rest of abdomen; 

 dorsal valve longer than ventral, slightly sinuate caudad. 



Described from 17 males and females from Washington, District 

 of Columbia (E. A. Schwarz), on "swampy meadows," May, 1880; 7 

 from Eufaula, Alabama (Schwarz), on Pine; 1 from Holderness, New 

 Hampshire (Hubbard and Schwarz); 12 marked ''U.S.D.A., 4783, 

 Sept. 29, 1910;" 2 collected by Uhler (locality unknown); 4 from 

 Hamburg, New York (van Duzee), July; 1 from Pennsylvania (C. F. 

 Baker) . 



LIVIA MARGINATA Patch. 



Livia marginata Patch 12a:8. 



This species is closely related to maculipennis, but in a few char- 

 acters seems to be distinct. The size is about the same. The vertex 



