EMBTOPTE'RA OF THE NEW WOKLD ROSS 433 



Wings without special features. Hind basitarsi with a submedial, 

 circular, membranous area on sole, but without an inflated bladder; 

 chaetotaxy as figured (fig. 56). 



Terminalia (figs. 53-55) dark brown throughout, with usual form 

 of the genus. Left tergal process (10 LP) (fig. 55) distinctive, broad, 

 short; outer membranous portion broadly triangular, evenly tapered 

 caudad. Left paraproct (LPPT + LCB) simple; inner apical angle 

 rounded, slightly lobed, minutely echinulate; outer apical angle 

 slightly produced, truncate. 



Female. — Unknown. 



Eolotype. — Male, on slide, deposited in the Museum of Comparative 

 Zoology, from Parintins, Brazil, October 2, (Parish). 



Remarks. — This species is named for Dr. Consett Davis, who first 

 described and illustrated the above holotype specimen as '■'■Pararhaga- 

 docMr sp. Indet." (Davis, 1940a, p. 187, figs. 76-79). It is now cer- 

 tain that the specimen represents a distinct new species, and through 

 the kindness of Prof. Nathan Banks the writer was permitted to study 

 the specimen. 



P. davisi may be recognized by its uniform dark brown color, the 

 form of the head, 10 LP, and left paraproct, and by its distribution. 

 It is a member of the confusa-birdbeni-tenuis series. 



PARARHAGADOCHIR SURINAMENSIS, new species 

 FiGUBES 57-60 



Male (on slide). — Uniform pale tan throughout (including pro- 

 thorax) ; head medium brown, with yellowish mandibles; abdominal 

 terminalia medium brown. Length 6.5 mm. ; forewing length 4.5 mm., 

 breadth 1.1 mm. 



Head (fig. 57) somewhat larger than terminalia, short, circular, 

 as long as broad across eyes; eyes very large, inflated, separated by 

 interspace nearly equal to an eye width, facets prominent; sides be- 

 hind eyes shorter than an eye length, moderately convergent and grad- 

 ually rounded posteriorly to form a broad caudal margin; occipital 

 foramen rounded anteriorly ; submentum of same color as head, quad- 

 rate, sides slightly arcuate, anterior margin scarcely emarginated. 



Wings jDale, with broad hyaline stripes ; with characteristic Pararha- 

 gadochir venation and few cross veins. 



Hind basitarsi with only one sole-bladder. 



Terminalia (figs. 58-60) with process of left hemitergite (10 LP) 

 (fig. 60) very broad basally; inner talonlike portion narrow, scarcely 

 acuminate, not curved apically ; outer broad portion only half as long 

 as "talon," very broad, fleshy. Right hemitergite (10 R) deeply ex- 

 cised on inner margin; caudal angle (10 RPi) broadly rounded, 

 thumblike with a narrow, terminal, spinelike appendix; inner pro- 



552731—43 — —3 



