122 STUDIES IN AMERICAN EPHYDRIDAE (dIPTERA) 



Specimens Examined. — 5. 



Costa Rica: Peralta, Mar. 24, 1910, (P. P. Calvert; sweeping over muddy 

 road), 1, [A. E. S.]. 



Pan.oia: Paraiso, Canal Zone, Jan. 16, 1911, (A. Busck), 1, [U.S. N. M.]; 

 Tabernilla, Canal Zone, July 31, 1907, (A. Busck), 1, [U. S. N. M.]. 



Colombia: Sierra San Lorenzo, (Ujhelyi), 2, [H. N. M.]. 



Var. captiosa new variety 



Color more subdued and markings less distinct. Face more evenly yellow- 

 ish or brownish gray; facalia not darker. The grays of the abdomen more 

 dilated medianly. The male with the mesal ciliation of fore femora consist- 

 ing of somewhat flattened but smaller bristles. 



Type. — cf ; Montserrat, Trinidad, West Indies, July 4 1905, 

 (A. Busck), [U. S. N. M. No. 19685]. Paratypes.~-2& ; topotyp- 

 ical. 



Specimens Examined. — 6. 



Trinidad: Montserrat, July 4, 1905, (A. Busck), 3, [U. S. N. M.]. 



Bolivia: Cillutincara, 1, [H. N. M.]; Coroico, 2, [H. N. M.]. 



Tlie specimens from Bolivia may belong to a distinct species. 

 The silvery antennal spot is rather indistinct and the flattened 

 area not noticeable. They may be closely allied to flexineuris. 



Paralinma pleurivittata new species 



This species is distinct in its horizontal eyes and frons, no 

 other species known having them so to such a degree. The only 

 other one approaching it in this respect is taurus, but that species 

 has the eyes round. The present species may seem to belong to 

 the group in which the second antennal joint has the flattened 

 silvery spot, but probably represents another distinct group. 



Description of both sexes. — Black; halteres and basal joints of tarsi, tawny. 

 General color dull yellowish gray and brovra with pectus and metanotum dull 

 cinereous. Frontal design complicated, more or less distinct; the lighter 

 stripe from the ocellar bristles subparallel. Face gray tinged above with 

 brown. Second antennal joint with silvery spot above. Cheeks lighter. 

 .Mesonotal irrorations obscure; two or three median vittae indistinct; laterad 

 of the dorso-centrals at the suture and extending obliquely to the post-alar 

 region is a broad brown stripe, also a similar stripe extending over the pro- 

 stigma and mesopleura to the pteroplcmal suture. ScuteUum concolorous 

 with mesonotum. The grays of the abdom(>n broad laterally, attenuated me- 

 sally and broadly interruj)ted except that of second segment. Venter brown, 

 laterally gray. Femora weakly ciliated. Wings brownish hyaline with all 

 veins narrowly, and the c. v. more broadly, clouded. 



Eyes horizontal, not rounded or vertical. Frons broader than long, hori- 

 zontal. Face much longer than broad, prominent, retreating below with 



