&CENOPINIDAE OF THE WORLD 121 



Female. — Head dark red-brown; eyes black-brown with a thin 

 postocular ridge; frons swollen above the antennae, with a median 

 groove extending into a large shallow median depression; genal area 

 small; mouthparts brown, large and well developed; oral cavity 

 bordered by a silvery pile that extends to base of antennae; ocellar 

 tubercle not prominent, median ocellus set in a depression. Antennae 

 as in the male. 



Thorax, wing, halter and legs as in male except tarsi yellow-orange. 



Abdomen red-brown. See figure for details of eighth segment and 

 bursa. 



Length: Male body 3.5 mm., wing 2 mm.; female body 3.5-4.5 

 mm., wing 2.3-2.8 mm. 



Type-locality: La Chorrera, Panama; 17 May 1912, (August 

 Busck) . 



Holotype: Male, allotype female, same data (USNM) 67480. 



Paratypes: 3 99, Cabima, Panama, 22 and 26 May, 28 August 

 1911 (A. Busck); 1 9, Corozal, C.Z., Panama, April 1911 (A. Busck); 

 1 9, Kingston, Jamaica, 8 October 1882 (M. Grabham); 1 9, in auto 

 from Mexico, 1 1 February 1952, at Brownsville, Texas; all in (USNM). 



82. Scenopinus butleri, new species 



Figure 81 



This species is close to S. mirabilis but differs in the length as well 

 as the shape of the third antennal segment and in the aedeagus and 

 ninth segment claspers. 



Male. — Head black; eyes red-brown above, dark red-brown below; 

 frons narrow, triangular, rugose, subshining, a few hairs on either 

 side of lower frons tend to make it look narrower; ocellar tubercle 

 prominent, ocelli orange-red. Antennae with first antennal segment 

 black-brown, moderately long; second segment black-brown, long, 

 the first two half as long as the third; third segment red-brown, 

 elongate, truncated, three times as long as widest point. 



Thorax dorsum black, a deep lateral groove above the wing base; 

 humeral callus red-brown; pleural areas black-brown. Wings smoky 

 hyaline, veins light brown; R5 and Ml + 2 widely separated. Ml + 2 

 ending at tip of wing. Legs with femora and tibiae black-brown, fore 

 and middle tarsi dark red-brown, hind tarsi red-brown. 



Abdomen black-brown, segments 3-5 w^ith broad white stripes; 

 ninth segment black-brown; see figure for details. Aedeagus short 

 and stout, parameres long and stout, ninth segment claspers stout 

 with depressed area of ti]) next to aedeagus, longer tip lateral ; cup of 

 syringe blackish. 



Female. — Unknown. 



Length: Male body 2.7 mm., wing 2.5 mm. 



