158 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



Sympherobius modestus, new species. 



Face pale, a dark mark on cheeks, one under each antenna, one be- 

 tween antennae, and fainter ones on the clypeus, vertex brown, with 

 pale median spot behind; antennae slender, yellowish, faintly annulate; 

 pronotum brown, with median pale stripe; thorax dark brown, with 

 several pale spots; abdomen dark brown; legs pale yellowish, hind 

 tibiae much swollen beyond middle. Wings faintly brownish, darker 

 apically and on the outer margin; venation brown, interruptedly pale, 

 alternate pale and dark dots around margin, brown clouds on gradate 

 veinlets, and on many cross-veins, and a large, rather triangular dark 

 spot above the anal angle; hind wings faintly smoky, darker at tip, 

 venation brown. Fore wings moderately long, fully two and three- 

 fourths times as long as broad, two radial sectors, upper branch of the 

 second is connected back to the radius twice, one cross-veinlet between 

 first radial sector and the median, near base of median fork; two cross- 

 veinlets from anal to cubitus; costal area rather narrow; in hind wings 

 no gradate veinlets, only the two small cross-veinlets in disc of wing, 

 the radial sector with three branches. 



Expanse, 11 mm. 



From Mendoza, Argentina (Jensen-Haarup Expedition). 



Hemerobius tolimensis, new species. 



Pale yellowish, a dark mark on each cheek; antennas rather heavy; 

 pronotum with a dark mark each side; abdomen brownish, legs pale 

 yellow. Wings hyaline; venation pale, with brown dots, except the 

 subcosta; outer and posterior margin of wing brown, margin with 

 groups of brown dots alternating with pale spaces; stigma indistinct, 

 from each dot on a vein extends an oblique cloud on each side of vein, 

 and the gradates margined with brown. Hind wings pale, venation 

 pale brownish, costal area yellowish. Fore wings rather long, almost 

 acute at tips, costal area quite broad at base, three radial sectors, 

 third forked but twice before stigma, and connected back to radius 

 but once before stigma and once at the outer gradate series; veinlet 

 connecting lower branch of median to cubitus dislocated from and 

 shorter than the veinlet below it ; five veinlets in the inner gradate 

 series, last beyond preceding, about seven in the outer series. Hind 

 wings with two branches to radial sector, and but few cross-veins, 

 only the middle two of the inner gradate series, and about five or six 

 in the outer series. 



Expanse, 20 mm. 



From Monte Tolima, Colombia, 3,200 meters, January, and 

 Guincta, Ouindini, Colombia, 3,500 meters (Fassl). 



