Vol. XXV] ENTOMOLOGICAL NEWS. 249 



Mesonotum with dorso-ccntral setulae weak. Scutellum convex, 

 rounded. Abdomen elongate, weakly arched, lateral margins rounded ; 

 sparsely minute brown pubescent ; segment 2 weakly flattened dorsally ; 

 dorsal length of 4 more than total length of I to 3. Genital segments 

 scarcely exserted. Wings with second costal section two-thirds as \n^ 

 as third; ultimate section of vein 4 two and one-half times as long as 

 preceding. Length 1.7 mm. 



Holotype. $ ?, Cachi, Costa Rica. Collected March 10, 

 1910, at stagnant pool near banks of Rio Reventazon by Dr. 

 P. P. Calvert. In collection of Academy of Natural Sciences, 

 Philadelphia. No. 6068. 



Paratypes. i with same data ; 14, Cartago, January to 

 December; 2, Brook Toyogres near Tierra Blanca, April; i, 

 Bonnefil Farm, Rio Surubres, October; i, Turrucares, Decem- 

 ber. All in Costa Rica. 



Distinguished by its pale yellow legs and smooth mesonotum. 



Lytogaster granulosus n. sp. 



Black, shining, sparingly brown pruinose ; mesonotum and scutellum 

 opake; antennae except above, apices of palpi, legs except apices, 

 tawny ; halteres whitish, knobs blackish ; face, cheeks and pleura spar- 

 ingly cinereous, orbits densely white; wings hyaline, yellowish, immacu- 

 late. 



Front twice as broad as long, weakly punctured, opake orbits dilat- 

 ing anteriorly. Face one-third of the width of vertex, three times as 

 long as broad; tubercle weak; cheeks slightly broader than third an- 

 tennal joint. Antennae elongate; third joint twice as long as broad; 

 arista short-haired above. Entire mesonotum densely, granularly sculp- 

 tured ; acrostical and dorso-central setulae discernible. Scutellum simi- 

 larly sculptured, quadrate, flat. Pleura sculptured as front. Abdomen 

 finely, closely pitted, becoming more shining laterally and apically ; 

 lateral margins rounded ; venter hollow ; segment 4 equalling 2 plus 3. 

 Wing: Costa with third section 1.25 times as long as second. Length 

 1.7 mm. 



Holotype. $ ? Near Guapiles, Costa Rica, June 4, 1909, 

 iioo feet altitude (P. P. Calvert). Collection at Academy of 

 Natural Sciences, Philadelphia, No. 6067. 



Paratypes. Bonnefil Farm, Rio Surubres, 6, October ; Cachi, 

 I, March; Banana River, 2, November; Juan Yifias, i, June; 

 all collected by Dr. P. P. Calvert, in Costa Rica; 



Although the legs are entirely yellowish, they are darker, 

 are more brownish than are those of pallipes, and the meso- 

 notum is not shining. 



