262 PROCEEDINGS OF TEE NATIONAL MUSEUM. vol. 58. 



tion shows considerable variation in the relative length of the tergites. 

 The color is very constant except that one very small male has the 

 hind coxae and both joints of the hind trochanter largely black. 

 In the original description the length of the malar space should 

 have been stated "slightly less than half as long as basal width of 

 mandible." 



P.^NARGYKOPS PEREGRINUS (Cresson). 



Mesoleptus? peregrinus Cresson, Trans. Amer. Ent. Soc, vol. 2, 1868, p. 102. 

 Thysiotorus peregrinus Viereck, Proc. U. S. Nat. Mus., vol. 42, 1912, p. 645. 

 Panargyrops thoracicus Cushman, Proc. U. S. Nat. Mus., vol. 55, 1919, p. 528. 



PANARGYROPS TEXANUS, new species. 



Female. — Length, 7.5 mm.; antennae, 4.5 mm.; ovipositor, 2.5 

 mm. 



Differs from tihiaUs (Cushman) principally as follows: Antennae 

 stout, sixth flagellar joint barely twice as long as thick (in tibialis the 

 sixth joint is much more than twice as long as thick); ovipositor 

 little more than half as long as abdomen; mandibles and scape be- 

 low red, the former indistinctly yellowish in middle; humeral spot 

 reddish; legs, except hind tibiae and tarsi, testaceous, front pair con- 

 siderably paler but coxae and trochanters are not white, hind tibiae 

 and tarsi reddish fuscous, trochanters not at all black. 



Type locality. — Texas. 



Type.— C&t. No. 22853, U.S.N.M. 



One female from the Belfrage collection. 



PANARGYROPS PACIFiCUS, new specre.s. 



Female. — ^Length, 7 mm.; antennae, 5 mm.; ovipositor, 3 mm. 



Differs from tibialis (Cushman) principally as follows: Scape below 

 indistinctly reddish; tegulae piceous; humeral angle of pronotum not 

 marked; legs testaceous, front pair palest, coxae and trochanters not 

 white, hind trochanter with apical joint only famtly darker; tergites 

 without distinct whitish apical margins. 



Type locality.— Ssiii Juan Island, Washington. 



Type.— Cat. No. 22854, U.S.N.M. 



One female taken July 1-7, 1909, by W. M. Mann. 



Genus THYSIOTORUS Foerster. 



The new species described below is somewhat doubtfully referred 

 to this genus. 



As typified by the new species and its congener Leptocryptus lamina 

 Thomson, Thysiotorus maybe characterized as follows: Head trans- 

 verse, broader than thorax, the temples strongly receding; eyes large, 

 bulging, the inner margins straight and slightly convergent below; 

 face narrow, little more than half as wide as eye is long, densely 



