16 COSTA RICAN DIPTERA 



Allotype. — 9, Juan Vinas, May 1, 1910, forest brook, 4 p.m., 

 2500 feet altitude. 



Leptocera (Limosina) inconspicua new species 



Female. — Glossy black. Face and antennae brownish. Abdomen yel- 

 lowish centrally. Legs dirty yellow, femora blackened except at bases and 

 apices. Wings clear, costal vein brown, the others yellowish. Halteres 

 yellow, knob black-brown. 



Frons slightly broader than long; 2 orbital bristles present, the lower one 

 slightly the weaker; central setulae very weak; antennae of average size, 

 standing well clear of eyes; arista about twice as long as width of frons, 

 hair-like, pubescence very slight; cheek at anterior margin about one-third 

 as high as eye, becoming rapidly higher towards posterior margin; vibrissa 

 distinct, behind vibrissa there is one much weaker setula and a very few 

 weak hairs; eyes bare, higher than long; face distinctly concave in profile, 

 produced between the eyes and at lower margin. Mesonotum without post- 

 humeral bristles, and having one pair of dorso-centrals with a weak pair of 

 setula about middle which represent the second dorso-centrals; disk with 

 numerous, indiscriminately arranged, short hairs; scutellum bare on disk, 

 four marginal bristles present. Abdomen as long as thorax, ovate, with 

 sparse discal and apical hairs on segments. Legs normal, the mid tibial 

 dorsal bristles weak, basal joint of hind tarsus about half as long as second 

 joint. Wings with costa extending barely beyond end of third vein; third 

 costal division twice as long as second; last section of second vein subequal 

 in length with basal portion of third; outer cross vein at barely more than 

 its own length from inner; vein 4 very indistinctly traceable to the wing 

 margin; vein 5 abruptly discontinued at slightly beyond outer cross vein; 

 last section of vein 3 straight, ending at very close to wing tip. Length, 

 .7.5 mm. 



Holotype:^ 9 , Cartago, December 12, 1909, from sweepings 

 over muddy road. T3^pe No. 6026. 



Parahjpe. — Filadelfia, January 18, 1910, on muddy beach of 

 Rio Tempisque. 

 Leptocera (Limosina) bromeliarum K. & M. 



19T2. Limosina bromeliarum K. & M. Ent. News, xxiii, 414. 



There are 10 specimens in the material before me reared from un- 

 folded leaves of Heliconia mariae from Rio Surubres, October 19, 

 1909. 

 Leptocera (Limosina) minima new species 



Male. — Black. Head entirely black, frons shining. Mesonotum shin- 

 ing black. Abdomen subopaque black. Legs brownish the tibiae and tarsi 

 brownish yellow. Wings clear, costa black, the other veins brown and 

 very fine, veins 4 and 5 indistinguishable beyond outer cross vein. Halteres 

 brown. 



