SCENOPINIDAE OF THE WORLD 117 



brown, well developed, palpi orange-brown, two- thirds as long as 

 rostrum; an extensive postgenal area on lower part of the head. 

 Antennae red-brown; first segment small; second bell-like, much 

 larger; third pear-shaped, less than twice as long as broad. 



Thorax red-brown, humeral and supra-alar calli red-orange. Wings 

 opaque, with milky microtrichia, veins light brown; halter stem brown, 

 knob red-brown. Legs red-brown with lighter tarsi. 



Abdomen red-brown, segments 3-5 with broad white stripes sepa- 

 rated by thin sclerotized bands. Ninth tergum similar to S. electus but 

 more prominent and posterior emargination different; see figure for 

 details. 



Female. — Head orange-brown, eyes red-brown; frons very broad, 

 wider than the eye when viewed from the front, rugose, swollen over 

 the antennae and with a median groove dividing the lower two-fifths 

 of the frontal area; ocellar tubercle flattened and not distinctly 

 separated, ocelli clear. Mouthparts well developed but lighter in color 

 than the male; antennae as male except lighter. 



Thorax dorsum orange-brown; humeral callus orange; pleura orange. 

 Wing as in male; halter stem brown, knob brown. Legs orange-brown 

 with straw-yellow tarsi. 



Abdomen orange-brown, subshining; eighth segment red-brown. See 

 figure for details of sternum and bursa. 



Length: Male body 2.2 mm., wing 1.7 mm.; female body 2.7 mm., 

 wing 1.6 mm. 



Type-locaUty: Bright Angel, Arizona; 10 July, (H. S. Barber). 



Holotype: Male in copulo with allotype female (USNM) 67479. 



Paratype: 1 9 , same data (USNM). 



78. Scenopinus beameri (D. E. Hardy) 



79. Scenopinus beameri \ar.fuscus (D. E. Hardy) 



Figure 78 



Omphrale beameri D. E. Hardy, 1944a, p. 43. 

 Omphrale beameri var. fusca D. E. Hardy, 1944a, p. 43. 



These two forms are similar except for the coloration of the hal teres. 



Length: Male body 2.3-2.5 mm., wing 2-2.3 mm. 



Type-locaUty: of beameri, Olancha, California, 25 August 1940, 

 (R. H. Beamer); of var. /asca. Onyx, California, 23 July 1940, 

 (R. H. Beamer). 



Types: (UKan). 



I have seen a long series of undetermined specimens from the same 

 localities and collection dates as the types and paratypes in (UKan). 

 Also: 19, Icf, Fallon, Nevada, 12 August 1940, (L. Lipovsky & E. 

 Kenaga); 1 9, Oak Creek Canyon, Arizona, 9 July 1941, (L. H. 



