SCENOPINIDAE OF THE WORLD 143 



98. Scenopinus mirabilis Adams 



Figure 96 



Scenopinus mirabilis Adams, 1904, p. 445. 

 Scenopinus nubiHpes Cresson, [not Say] 1907, p. 111. 

 Scenopinus ramaleyi Jame.«, 193S, p. 22. 



Close study of the terminalia of a series of males distributed over 

 a wide geographical area indicates that individuals with the char- 

 acteristic shape of the ninth tergum, excavated dorsal posterior 

 margin, and notch at the ventral tip, are apparently undergoing 

 speciation. I place S. ramaleyi in synonom}- with S. mirabilis on the 

 basis of the short aedeagus with weak parameres and ninth segment 

 claspers with a long median knob on tip flanked laterally by an 

 equally wide depressed portion. The character given by Hardy for 

 separation is much too variable to be relied upon. 



Figure 96. — Scenopinus mirabilis Adams, male, female: a, wing; b, c, lateral and frontal 

 aspects of male head; d, e, lateral and frontal aspects of female head;/, g, enlarged details 

 of male and female antennae; h-j, ventral, lateral and posterior aspects of male terminalia; 

 k, ventral aspect of female 8th sternum; /, lateral aspect of female 8th and 9th segments; 

 m, female 9th sternum and bursa. 



The third antennal segment is oval, being about twice as long 

 as wide, cell R5 open at tip of wing by at least the width of the r-m 

 cross vein. Size of cell R4 variable. 



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

 body 3.4-4 mm., wing 2.5 mm. 



Type-locality: Bill Williams Fork, Arizona (F. H. Snow). 



Types: (UKan). 



