196 ASHMEAD [190] 



parapsidal furrows are distinct to beyond the middle of the mesonotum, 

 while the metathorax Is shining and completely areolated. 



Ty^e. — Cat. No. 5745, U. S. Nat. Museum. From Lowe Inlet, 

 June 3. 



Genus Ilapinastes Forster. 



ILAPINASTES INCERTUS sp. nov. 



Male. — Length 3.5 mm. Polished black, the face closely punctate, 

 palpi yellowish with two or three of the joints dusky medially ; teg- 

 ulae, sutures of the trochanters, front and middle knees and their tibiae 

 beneath and the tibial spurs, yellowish ; rest of legs black or fuscous. 

 Wings hyaline, the stigma and veins brown, the stigma with a whitish 

 spot at base. Abdomen black, with the third segment at its extreme 

 apex and a narrow band at base, testaceous ; the petiole is punctate, 

 the second segment coriaceous, the following smooth and Impunctate, 

 except that the third segment exhibits, under a strong lens, a feeble 

 punctuation towards its base. 



Type. — Cat. No. 5604, U. S. Nat. Museum. From Popof Island, 

 July II. 



Genus Isochresta Forster. 



ISOCHRESTA UNICINCTA sp. nov. 



Male. — Length 3.6 mm. Polished black, the face faintly punctate 

 just beneath the insertion of the antennae and sericeous; sutures of 

 trochanters, apices of femora, all tibiae and the front and middle tarsi, 

 yellowish ; the apex of the hind tibiae is subfuscous, their tarsi fuscous. 

 The abdomen except the third segment is black, the third segment 

 having a testaceous band across the base; the petiole is coriaceous 

 and bicarinate to beyond the spiracles. Antennae 20-joInted, with the 

 third joint a little longer than the fourth. Metathorax finely rugulose 

 and completely areolated. 



Type.—Q^t. No. 5605, U. S. Nat. Museum. From St. Paul 

 Island, August 16 (Fur Seal Commission). 



Tribe PEZOMACHINI. 

 Genus Thaumatotypus Forster. 



THAUMATOTYPUS ALASKENSIS (Ashmead). 



Cremnodes alaskensis Ashmead, Trans. Am. Ent. See, xxiii, p. 211, $, 

 1896. 



Type. — Cat. No. 3717, U. S. Nat. Museum. From Wrangell 

 (Professor H. F. Wickham). 



