NEW SAWFLIES IN THE COLLECTIONS OF THE UNITED 

 STATES NATIONAL MUSELT^I. 



By S. A. RoHWER, 



Bureau of Entomology, United States Department of Agriculture, Washington, D. C. 



It is believed that the following species are congeneric with the 

 genotypes as defined in the two papers by tlie author deaUng with 

 the subject of genotypes. ^ In the maldng of descriptions a Carl 

 Zeiss binocular and Carl Zeiss hand lens were used. The figures are 

 from camera lucida sketches. The following new species do not 

 exhaust the collections of the United States National Museum, and 

 some other papers dealing with genera not treated in this paper 

 wiU be submitted later. While some of the descriptions are appar- 

 ently brief, they will, it is beheved, suffice to determine the species 

 in question ^^dth certainty. Certain new species in this paper have 

 been described by comparison with an old species. If the reader has 

 a species, differing from the old species in characters not mentioned 

 in the comparison between the old and new species, it may be con- 

 sidered different from the new species. To redescribe characters 

 common to many species is of no value in a description. 



This paper is a contribution from the Division of Forest Insects 

 of the Bureau of Entomology of the United States Department of 

 Agriculture. 



Genus ACANTHOLYDA Costa. 



ACANTHOLYDA (ACANTHOLYDA) PINI, new species. 



Related to atripes (Cresson), but may be distinguished by the 

 paler legs, the black and pale abdomen, and non-yellowish wings. 



Female. — Length 13 mm. Head with rather large, separate 

 punctures; lateral supraclypeal area smooth, shining impunctate; 

 clypeus" sliining, with widely separate punctures, the anterior margin 

 not quite straight; antennee 35-jointed, the apical joints small, 

 third joint longer than four, but not as long as four plus five; middle 

 fovea represented only by a line; no ocellar basin; all the furrows 

 of the head wanting; the middle area of the mesonotum with dis- 



1 The Genotypes of the Sawflies and Woodwasps, or the Superfamily Tenthredinoidea, Bull. Tech. Ser. 

 No. 20, pt. 2, U. S. Dep. Agr., Bur. Ent., pp. i-vi and 69-109, March 4, 1911. 



Additions and corrections to "The Genotypes of the Sawflies and Woodwasps, or the Superfamily 

 Tenthredinoidea," Ent. News, vol. 22, pp. 218-219, May, 1911. 



Proceedings U. S. National Museum, Vol. 41— No. 1866. 



377 



