ART. 8 SAWFLIES FROM SIBERIA ROHWER 7 



PACHYPROTASIS ANTENNATA (Klug) 



A single female from Kudia River, Amagu, Siberia, collected 

 July, 1923, by T. D. A. Cockerell. 



In this specimen the upper part of the mesepisternum is narrowly 

 black ; the prescutum is margined with yellow only posteriorly ; the 

 hind tibiae are black except for a small spot exteriorly. 



MACROPHYA APICALIS, variety INFUMATA, new variety 



Female. — Length, 9 mm. Differs from the typical form which 

 occurs in Japan by having the hind trochanters black and in having 

 the wings distinctly- infumated. Apex of stigma and the costa 

 piceous. 



Paratype females are 11 and 12 mm, in length. 



Male. — ^Length, 9 mm. Differs from the female in having the 

 scutellum and hind coxae all black (without white markings). 



Type-locality. — Kudia River, Amagu, Siberia. 



Paratype-locality. — Kongaus, Siberia. 



Described from one female (type) and one male (allotype) from 

 the type-locality collected by T, D. A, Cockerell July, 1923; and 

 from two females from the paratype-locality collected by T. D. A. 

 Cockerell August, 1923. 

 . Type, allotype, and paratypes. — Cat. No. 28478, U.S.N.M. 



TENTHREDO FUSCOCOSTALIS, new species 



This species is closely allied to Tenthredo vespa (Retzius) but 

 ma}'^ be separated from it by the much blacker legs, the presence of 

 small yellow spots on the scutellum, and the greatly reduced yellow 

 markings on the abdomen. The tegulae in the new species are 

 almost entirely black. 



Female. — Length, 11 mm. Labrum smooth, broadly rounded 

 apically; clypeus smooth with a deep, broad, arcuate emargination, 

 the lobes narrowly rounded apically; frons with distinct, coarse 

 punctures which medianly tend to become confluent so as to give a 

 slightly wrinkled appearance; posterior orbits with very small 

 punctures; head not narrowing behind the eyes; postocellar area 

 sharply defined laterally, feebly defined anteriorly, about twice as 

 broad as long; occiput distinctly margined; antenna distinctly 

 thickened apically, the seventh and eighth joints one-fourth broader 

 than long; mesonotum with coarse, distinct punctures which are 

 somewhat closer medianly; scutellum transversely convex, not as 

 coarsely punctured as the scutum ; mesepisternum coarsely punctato- 

 reticulate; first tergite smooth, the following tergites with small, 

 distinct punctures on a granular surface, the punctures larger on the 

 anterior tergites; stigma truncate apically; fifth abscissa of the 



