264 



U. S. NATIONAL MUSEUM BULLETIN 216 



54b. Exochus decora tus liebes, new subspecies 



Male: Unknown. 



Female: Front wing 5.0 to 5.6 mm. long; costula usually complete, 

 though weak centrally. 



Black. Face, side of frons (narrowed above), spot at top of eye that 

 may be connected to mark on side of frons, clypeus, cheek, lower 0.4 

 of temple, mouth parts, under side of scape and pedicel, lower half or 

 more of propleurum, upper hind part and lower corner of pronotum, 

 tegula, subtegular ridge, large area on prepectus which is sometimes 

 prolonged backward on disc of mesopleurum, mesopleurum next to 

 socket of middle coxa, side and apex of scutellum, postscutellum, front 

 and middle legs, and apical 0.25 ± and apical part of dorsal edge of 

 hind femur, pale yellow; flagellum brown beneath; side of thorax 

 except for front part of prothorax, disc of scutellum, often most of 

 mesoscutum, tinge on front and middle femora, hind coxa and tro- 

 chanters, and hind femur except as described otherwise, fulvous; 

 extreme apex of hind femur infuscate; hind tibia whitish, its basal and 

 apical 0.16± fuscous; hind tarsus whitish, its last tarsal segment 

 brownish apically. In two specimens from Juneau, Alaska, the hind 

 femur is almost entirely fulvous, with only a very small area of 

 yellow at the apex above. 



This subspecies is intermediate between the Palaearctic subspecies 

 decoratus and the subspecies scitulus from eastern North America. 



Type: 9, Parker Creek, Sierra Ancha, Ariz., May 7, 1947, H. and M. 

 Townes (Washington, USNM 63681). 



Paratypes : 29, bred from Acleris variana, Juneau, Alaska, Septem- 

 ber 1953, W. F. Cambridge (Washington). 9, Oak Creek Canyon, 

 Ariz., May 20, 1947, H. and M. Townes (Townes). 9, Canim Lake, 

 B. C, June 22, 1938, G. S. Walley (Ottawa). 9, Robson, B. C, 



f VI 



o \ ° 



v a \ 



Figures 160-162. — Localities: 160 (left), Exochus decoratus hebes; 161 (center), E. decoratus 

 scitulus; 162 (right), E. mandibularis. 



