SCENOPINIDAE OF THE WORLD 125 



with first segment very small, black-brown; second segment brown, 

 rounded, much larger than the first; third segment black-brown, 

 pear-shaped only a little longer than broad. 



Thorax dorsum black-brown, humeral and supra-alar calli red- 

 brown; pleural areas dark red-brown. Wings smoky, veins tan; halter 

 stem red-brown, knob white. Legs dark red-brown, except tarsi 

 which are orange-brown. 



Abdomen short, red-brown, segments 3-5 extensively white dorsally; 

 ninth tergum with dorsal points; aedeagal parameres long, like S. 

 mirabilis. See figure for details of terminalia. 



Female. — Head red-brown; eyes black, with a narrow pollinose 

 postocular ridge; frons broad, subshining, red-brown below, black 

 above, with a broad shallow depression on the lower portion. Ocellar 

 tubercle flat but marked off from frontal area; mouthparts extending 

 only half the length of the oral cavity; palpi sub-equal; inner surface 

 of oral cavity pollinose; lateral portions to the eye broad, shining. 

 Antennae with first segment dark red-brown, subshining; second 

 segment red-brown, pollinose, as long as first segment but wider; 

 third segment red-brown, pollinose, about twice as long as broad, very 

 little taper. 



Thorax dorsum dark red-brown; humeral callus with a posterior 

 orange patch; supra-alar callus orange-brown, wings hyaline, smoky 

 brown; veins brown; halter stem dark brown, knob creamy with tan 

 margins. Legs with femora dark red-brown, remainder red-brown. 

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



Length: Male body 2 mm., wing L7 mm.; female body 4 mm., 

 wing 3 mm. 



Type-locality: Chiricahua Mts., Arizona; 4 July 1940, (L. C. 

 Kuitert) . 



Holotype: Male (UKan) 6289. 



Allotype: Female, Rustlers Park, Chiricahua Mts. ; 5 July 1940, 

 (L. C. Kuitert) (UKan). 



Paratype: Male Calexico, California; 8 April 1947, (A. L. 

 Melander) (USNM). 



85. Scenopinus cooki, new species 



Figure 81 



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

 below; frons small, triangular, with a large elongate median depres- 

 sion, shining above, and an inverted triangle below. Ocellar triangle 

 red-brown, prominent, ocelli orange. Back of head concave, only a 

 narrow postgenal strip showing behind lower half of eye. Mouth- 

 parts large, brown; i)alpi red-brown long; white pubescence between 

 oral opening and eye margin extending into points above the antennae. 



