ICHNEUMON-FLIES — GELINAE : MESOSTENINI 25 



Orbital white band incomplete, with a definite interruption near top of hind 

 orbit; last segment of hind tarsus white with its apical 0.1 to 0.4 blackish. 



3. audax (Cresson) 



FEMALES 



(The female of halli is unknown.) 



1. Second and following tergites fulvous 1. candidus (Cresson) 



Second and following tergites black margined with white 2 



2. Lower part of mesopleurum with a single, large, sublongitudinal white spot; 



notaulus indistinct 5. texanus (Ashmead) 



Lower part of mesopleurum usually with a long white stripe which anteriorly 

 curves upward, but this stripe sometimes broken into two spots of variable 

 size, one or both of the spots sometimes absent; notaulus sharp 3 



3. Hind coxa black and white; postpetiole black above, with a white apical band; 



orbital white mark complete 2. fortis (Cresson) 



Hind coxa fulvous, with a variable amount of whitish, often fuscous at base; 

 postpetiole fulvous, usually with a white apical band; orbital white mark 

 interrupted, at least on upper part of hind orbit, sometimes almost entirely 

 lacking 3. audax (Cresson) 



1. Baryceros candidus (Cresson), new combination 



Figure 330,b 



Mesostenus candidus Cresson, 1878, Canadian Ent., vol. 10, p. 206; cf. Type: 



cf, New York (Philadelphia). 

 Crypturus albomaculatus Ashmead, 1890, Proc. U.S. Nat. Mus., vol. 12, p. 414; cT- 



Type: cf, Michigan (Washington). 

 Crypturopsis abdominalis Cushman, 1929, Proc. U.S. Nat. Mus., vol. 74, art. 16, 



p. 28; ?. Name preoccupied in JSaryceros by Cresson (Mesostenus) Baryceros 



abdominalis (Cresson) 1873, new combination. New synonymy. 

 Christolia dumetorum Townes, 1944, Mem. Amer, Ent. Soc, vol. 11, p. 271. New 



name for Crypturopsis abdominalis. 



Front wing of male 6.5 to 8 mm. long, of female 5.7 to 10 mm. long. 

 Structm'ally similar to B. audax except that punctation is a little 

 coarser and closer, wrinkling on thorax less extensive, hairs on basal 

 half of third tergite of female denser (most of these separated by about 

 their length), and ovipositor tip a little more slender. 



Male: Colored like the male of B. audax audax except as mentioned 

 in key, and except that the hind femur has an average of less fuscous. 



Female: Black. Head and thorax marked with white as in figure 

 330, b; abdomen uniformly reddish fulvous except that apex of petiole 

 is sometimes a little paler; palpi stramineous; flageUum with a white 

 band that is interrupted below; front and middle coxae and trochanters 

 whitish, the coxae with a small apical external fuscous spot, their bases 

 blackish; hind coxa varied with fulvous, whitish, and fuscous as in 

 figure 330, b; hind trochanters and legs beyond trochanters fulvous, 

 the last segment of all tarsi and area at articulation of hind femur 

 with trochanter reddish brown. The white spots covering propodeal 



689900—62 3 



