NOTES ON SAWFLIES, WITH DESCRIPTIONS OF NEW 



SPECIES. 



By S. A. RoiiWER. 



0/ the Bureau of Enlomology, United States Department of Agriculture. 



The following paper, which deals %vith sawflies collected from 

 various parts of the world, is presented for publication now because 

 it contains miscellaneous new species and notes which can not well be 

 included in any revision in progress, and as some of the new species 

 are of economic importance it is desirable that their names be made 

 available. Some of the sawflies were collected by Messrs, Bryant 

 and Palmer, in Java. All of these species have been worked up, and 

 as all of them were new, a complete report of the sawflies of this 

 expedition will be found on the following pages. Most of the Nearc- 

 tic species described have been received for determination through 

 the Bureau of Entomology. A synopsis of the Nearctic species of 

 the genera Lagium and Labidia is included, as it may be useful in 

 determining the species described as new. 



This paper, which is the second stated contribution from the 

 Branch of Forest Insects, Bureau of Entomology, which has appeared 

 in these proceedings,^ is the result of work on miscellaneous material 

 accumulated by the bureau and from the collection of the Museum in 

 connection vnih the study of sawflies injurious to forest trees. 



Superfamily MEGALODONTOIDEA. 



Genus PAMPHILIUS Latreille. 

 PAMPHILIUS (PAMPHILIUS) NIGRITIBIALIS, new species. 



Male. — Length 7 mm. Anterior margin of the clypeus broadly 

 rounded, from the bases of the antenna? and extending on the clypeus 

 is a U-shaped carina; lateral supraclypeal area dull; frontal crest 

 very strong so the face is perpendicular, the crest deeply broken by 

 the antennal furrows; a V-shaped area above the crest, defined by 

 caringe, the surface granular; anterior ocellus nearly completely 

 enclosed by a carina, just in front of the ocellus is a smooth depression; 

 posterior orbits and behind the supraorbital line polished, ^\'ith a few 



1 Proc. U. S. Nat. Mus., vol. 41, 1911, pp. 377-411. 



Proceedings U. S. National Museum, Vol, 43— No, 1930. 



205 



