530 U. S. NATIONAL MUSEUM BULLETIN 216 



21b. Xorides (Xorides) cincticornis rufus, new subspecies 



Head, legs, and abdomen f ulvof erruginous ; thorax black with fulvo- 

 ferruginous areas to entirely f ulvoferruginous ; flagellum black, the 

 female flagellum with a white band covering about 3 segments. 



Besides the color difference, this subspecies has the wrinkles on 

 temple paralleling hypostomal carina a little stronger and the first 

 tregite a little more slender than in X. cincticornis cincticornis. 



Type: <?, Leevining, Calif., June 25, 1948, H., M., G., and D. 

 Townes (Washington, USNM 63736). 



Paratypes (34 d\ 229) : From California (Buck's Lake in Plumas Co., 

 Camp Celio near Nevada City, Dardanelle, Donner Pass, Echo Lake 

 in El Dorado Co. at 7,400 ft., Fallen Leaf, near Glacier Point in 

 Yosemite Park, Gold Lake in Sierra Co., Hope Valley in Alpine Co., 

 Independence Lake in Sierra Co., Leevining, Mendocino Co., Quincy, 

 Sagehen near Hobart Mills, Sierra ville, Sonora Pass at 9,624 ft., 

 Summit Camp in Lassen Co., and Tamarack Lake at 7,700 ft. in El 

 Dorado Co.); and Oregon (Sisters). 



Collecting dates are nearly all in July. Those outside of this month 

 are: June 22 at Camp Celio, near Nevada City, Calif.; June 25 at 

 Leevining, Calif.; June 28 at Summit Camp, Lassen Co., Calif.; and 

 August 1 at Donner Pass and Fallen Leaf, Calif. 



This subspecies is in the Canadian and Hudsonian zones of Cali- 

 fornia and part of Oregon. Most adults occur in July. 



10. Subgenus Pyramirhyssa, new status 



Pyramirhyssa Mocsary, 1905, Ann. Hist.-Natur. Mus. Nat. Hungarici, vol. 3, p. 15* 

 Type: Pyramirhyssa magnifica Mocsary; monobasic. 



There is a single known species, the genotype, from southern Brazil. 



2. Tribe Labenini 



Front wing 6 to 22 mm. long; clypeus covering base of labrum, its 

 apical margin thin, truncate or medially convex; flagellum filiform, 

 rather stiff, its apex rather weakly tapered; thorax moderately long, 

 subcylindric or somewhat compressed; abdomen attached high on the 

 propodeum, its socket considerably above the sockets of the hind 

 coxae; female hind coxa with an internal basal transverse groove for 

 holding ovipositor; tarsal claws simple; areolet usually present; apex 

 of costellan vein with a single stout hamulus; spiracle of first abdominal 

 segment at or a little in front of the middle; epipleura meeting on 

 midline; ovipositor compressed, its apex with close, vertical ridges. 



The tribe Labenini has a marsupial type of distribution, with 

 centers in the Australian and Neotropic regions and a few species 

 entering the Nearctic region. The described genera are Labena, 



