E. T. CRESSON, JR. 121 



with rather distinct vittae. Mesopleura immaculate. The median brown 

 abdominal stripe well defined. Femora and tibiae anteriorly densely cinere- 

 ous; knees and bases of tarsi yellowish. Wings yellowish hyaline; cross veins 

 slightly clouded. 



Frons convex, scarcely broader than long. Face one and a half times as 

 long as broad, with only one strong facial bristle; parafacial very narrow, linear. 

 Cheeks about half as high as the eye. Second antennal joint with a small 

 flattened area above near apex in which is situated the white spot; arista long 

 with 8-10 hairs. The bristles of the frons and thorax are unusually long. The 

 ciUation of femora microscopic. Length. — 2.8 mm. 



Type.— d'; Banana River, Costa Rica, Nov. 9, 1909, (P. P. 

 Calvert), [A. E. S. No. 6094]. Parahjpes.—5 c^,.l 9 ; topotypical. 



Specimens Examined. — 8. 



Costa Rica: Banana River, 100 ft. alt., Nov. 9, 1909, (P. P. Calvert; sweep- 

 ing near upper reservoir), 7, [A. E. S.]; Rio Aranjuez, Puntarenas, Sept. 15, 

 1905, (F. Knab), 1, [U. S. N. M.]. 



Paralimna puncticornis new species 



Here we have a form in wliich the frontal design is very strongly 

 and completely developed. The frons is rather horizontal but 

 the eyes are round, large, so the species should not be confused 

 with pleurivittata. 



Description ofFertiale. — Black; halteres and base of tibiae tawny. Generally 

 yellowish gray and browai, becoming gray ventrally. Frons brown with dis- 

 tinct labyrinthine lighter markings, the stripe from the ocelli converging 

 anteriorly. Face mottled; facalia and a pair of spots on median area below 

 hump brown; parafacials and cheeks lighter; clypeus brownish. Antennae 

 with silvery spot on second joint above. 



Irrorations of mesonotum coalescing into irregular vittae; mesopleura and 

 scutellum irrorated with brown. Sternopleura blackish below. Grays of 

 abdomen narrow except on second segment and broadly interrupted medianly; 

 venter brownish medianly. Femora faintly grayish. Wings brownish 

 hyaline; c. v. narrowly clouded. 



Eyes large, round. . Frons broader than long, rather horizontal but convex. 

 Face nearly as broad as long, prominent; hump and foveae weak; parafacials 

 very narrow. Antennae situated above middle line of eyes; second joint with 

 flattened area above near apical margin; third joint small; arista with 12 to 

 14 hairs. Checks one-fourth height of eyes. Wings with second vein slightly 

 bent; third costal section twice as long as second. Length. — 4.0 mm. 



The males are similar with normally ciliated femora. 



Type.— 9 ; Peralta, Costa Rica, March 24, 1910, (P. P. Calvert; 

 sweeping over muddy road), [A. E. S. No. 6095]. 



TRANS. AM. ENT. sT)C., XLII. 



