528 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.55. 



Genus AMAUROMORPHA Ashmead. 



Amauromorpha Ashmead, Proc. U. S. Nat. Mus., vol. 29, 1915, p. 410. 

 Eripternimorpha Vieeeck, Proc. U. S. Nat. Mus., vol. 44, 1913, p. 645. 



Comparison of the types of the genotypes of these two genera fails 

 to disclose any generic difference. It is Cryptine rather than Ophio- 

 nine as placed by Viereck and allied by its minute areolet to Mesos- 

 tenus Gravenhorst. 



Genus PANARGYROPS (Foerster) Schmiedeknecht. 



In an earlier paper ^ I tabulated the North American species 

 of Bathythnx (Foerster) Howard and described a new species under 

 the name B. tibialis. Further study shows this to agree better with 

 the present genus as represented by the genotype, Panargyrops 

 claviger (Taschenberg). These two genera are placed in different 

 tribes by practically all writers because of the fact that one has the 

 areolet open and the other has it closed. It is my opinion that this 

 character, far from being of tribal rank, is not even of generic value. 

 Certainly the two genera under discussion are very closely related, 

 surely as closely as subgenerically, the genotypes representing the 

 extremes of variation within the genus. Thomson, who it seems to 

 me, was one of the best interpreters of the value of characters, who 

 has worked with Ichneumonidae, placed in his genus Leptocryptus 

 (isogentopic with Panargyrops) species typical of both of Foers- 

 ter's genera as represented by the genotypes, as well as some that run 

 in Foerster's key to Thysiotorus and Apsilops, although not agree- 

 ing with the subsequently first included species of those genera. 



The following new species is typical of the genus : 



PANARGYROPS TIIORACICUS, new species. 



Compared with (Bathythrix) Panargyrops tibialis (Cushman) 

 differs as follows: 



Female. — Length, 6 mm.; antennae, 4 mm.; ovipostor, 2,8 mm. 



Malar space barely a third as long as basal width of mandible 

 (this character is wrongly stated in the description of tibialis; it 

 should read "malar space slightly less than half as long as basal 

 width of mandible") ; first tergite not distinctly wider at apex than 

 at spiracles (in tibialis the postpetiole is somewhat swollen). 



Head black, mandibles and palpi whitish, antennae brown, the 

 scape paler below ; prothorax entirel}^ and mesoscutura except for 

 piceous spot occupying most of the prescutum, the scutellum, the 

 postscutellum, and the alar region ruf otestaceous ; thorax otherwise 

 and propodeum piceous black ; tegulae and front and middle legs ex- 

 cept middle tarsi, which are fuscous, whitish; hind leg testaceous with 

 trochanter and base and apex of femur slightly infuscate, the tibia 



1 Proc. U. S. Nat. Mus., vol. 53, 1917, p. 458. 



