258 PROCEEDINOS OF THE NATIONAL MUSEUM. vol. oS. 



Of the species included by Thomson in Leftocrtjptus only four — 

 claiiger, lamina, ruftcandatus, and geniculosus — are represented in 

 the National Collection. Of these, lamina runs to Thysiotorus, ruji- 

 candatus to Apsilops, and geniculosus to BathytJirix. This last is con- 

 generic with Bathytlinx meteori Howard, the genotype, and Batliij- 

 thrix pimflae Howard. Rujicaudatus is very difTerent from Apsilops 

 Tiirtifrons Ashmead. The latter species has as its congener Ichneu- 

 mon cinctojius Fabricius, the first species referred to Dapanus Foerster 

 (by Ashmead) and Sohas Foerster (by Schmiedeknecht) and the basis 

 of Thomson's genus Tricliocryptus. By Foerster's definition of the 

 Crj^ptoidae, cinctorius can not be the type of Sohas, for the propodeal 

 areola is complete and the dorsal carinae of the petiole are present. 

 These characters, regardless of their value in the sense in which they 

 are employed by Foerster and regardless of the strictness of Foerster's 

 own interpretation of them, constitute a part of his descriptions of 

 all his Phygadeuontoid genera and nmst be strictly interpreted in the 

 selection of types for his atypic genera. In the Phygadeuontoidae 

 dnctonus and Tiirtifrons will run to no genus, for they agree with 

 neither alternate under category 7. Therefore cinctorius can not 

 serve as the type of Dapanus, nor Tiirtifrons of Apsilops. This leaves 

 TncTiocryptus Thomson as the name to be used for this genus, and 

 Dapanus without properly included species. Subsequent to his 

 inclusion of Tiirtifrons in Apsilops, Ashmead referred two other species 

 to the genus, Diaglypta radiaia Ashmead* and Apsilops nigriceps 

 Ashmead.2 Neither of these species is congeneric with Tiirtifrons. 

 They belong rather to that group of the Hemitelini, in which the 

 second intercubitus is entirely wanting and the first much reduced, 

 and hence can not be types of the genera Diaglypta and Apsilops. 

 Neither is more than subgenerically distinct from Allocota Foerster. 

 Apsilops and Diaglypta are therefore without properly included 

 species. 



The two species referred bj^ Brischke to Thysiotorus are unknown 

 to the writer. They must both, however, be excluded as possible 

 types of that genus for the areolet is lacking, whicn in Foerster's 

 classification would place them in the Hemiteloidae instead of in 

 the Phygadeuontoidae. The only other species referred to TTiysio- 

 torus is Mesoleptus peregrinus Cresson, so referred b}' Viereck.' 



This species can not be the genotj^pe of TTiysiotorus Foerster since 

 it has the nervellus broken as shown by a recent examination of the 

 type- This leaves TTiysiotorus Foerster without a genotype. Meso- 

 ieptus peregrinus Cresson is a Panargyrops and has as its synonym 

 Panargyrops thoracicus Cushman. 



1 Trans. Ent. Soc. Lond., 1900, p. 268. • , , . 



« Proc. U. S. Nat. Mus., vol. 29, 1905, p. 114. 

 » Idem-, vol. 42, 1912, p. 645. 



