48 BULLETIN 85, UNITED STATES NATIONAL MUSEUM. 



HETEROPSYLLA FUSCA, new species. 



Figs. 119, 12o. 



Length of body 1.5 mm; length of forewing 1.9; width of head 

 0.73. General color brown to dark brown on head and thoracic 

 dorsum, yellow on venter and abdomen; apical half of antennae, 

 and sometimes femora, brown. 



Head relatively rather large, as broad as thorax, surface distinctly 

 strigate; vertex moderately long, not as long as broad, with the 

 usual two foveal impressions, rounded in front; genas less swollen 

 than in most other species of the genus; frons largely visible, only 

 slightly covered by gense. Eyes large. Antennas about twice as 

 long as width of head. 



Thorax arched, moderately broad, distinctly strigate on dorsum. 

 Forewings slightly fumate over most of surface, similar in shape and 

 venation to cogenors. 



Genitalia. — Male. — Genital segment small; forceps small, very 

 short, not much longer than broad, oval in profile, with a posterior 

 spiniform process almost as long as mam portion and lying closely 

 appressed to it. Anal valve nearly twice as long as forceps, cylindri- 

 cal, distal third narrowed, trancate at apex, pubescent. Female. — 

 Genital segment as long as rest of abdomen; dorsal valve nearly 

 twice as long as ventral, both acute. 



Described from two males and four females from Santo Domingo, 

 West Indies (Aug. Busck), August 6 and 7, 1905. 



Type. —Cut. No. 18076, U. S. Nat. Mus. 



HETEROPSYLLA MIMOSjE, new species. 



This species resembles more or less closely mexicana and ciibana in 

 some respects but is smaller than either. General color light orange 

 to reddish brown. 



Head as broad as thorax; vertex only very slightly impressed 

 discally; frons largely visible between gense; antennte about twice as 

 long as width of head. Forewings clear, venation similar. 



Genitalia. — Male. — Genital segment small; forceps similar in out- 

 line to those oifusca, with a large, prominent spiniform process behind 

 and between. Anal valve very short and thick. Female. — Genital 

 segment exceedingly short, ventral valve sometimes scarcely visible, 

 much shorter than dorsal. 



Described from 18 males and females from Columbus, Texas 

 (Schwarz), on Mimosa sp., August 16; Bro-v^msville, Texas (Hubbard 

 and Schwarz), June; Victoria, Texas, July 29, 1903. 



Type.— C&t. No. 18077, U. S. Nat. Mus. 



