174 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



Habitat. Tampico, Mexico. Mr. D. L. Crawford, Collector. 



Type and paratypes.Cat. No. 21423 U. S. N. M. 



Described from four specimens reared March 1, 1914 from 

 unripened seeds in the green pods of cowpeas by Mr. D. L. Craw- 

 ford, which were submitted together with the work and larvae to 

 the Museum for determination. 



This species is more robust than any of our North American 

 species and has the general form of our common Leptostylus 

 macula Say, but the prominent lateral thoracic spine will exclude 

 it from that genus. Our species of Lepturges^are separated into 

 two groups on the position of the thoracic spine, and if this char- 

 acter is used, L. spermophayus is closely allied to L. symmetricus 

 Hald., but the position of this spine seems to be somewhat variable. 

 In this species the coxae are more widely separated than in any 

 of our North American species. 



This is a very interesting species on account of its habits and 

 is the second record of a species of longhorn beetle infesting legum- 

 inous plants, the other species, Baryssimus leguminicola was de- 

 scribed by Mr. Linell from a single specimen taken from a jar 

 containing the pods of one or more species of Enterolobium, a 

 leguminous plant from Paraguay on exhibition at the World's 

 Columbian Exposition at Chicago. 



Mr. F. C. Craighead has supplied the following notes on the 

 relationship of the larva of this species: 



The larvae of the genus Lepturges form two distinct groups. Four 

 species have been studied, symmetricus and signatus having three jointed 

 maxillary palpi and a long chitinous spine on the ninth abdominal tergum ; 

 facetus and querci having two jointed maxillary palpi and no spine. This 

 distinction is certainly of generic value as its occurence in other forms in 

 the Lamiinae sets off well marked genera. This larvae, L. sperrnophagus 

 belongs to the facetus group and can be separated from all other Lamiids 

 by the antennal ring being closed or angulate behind; two jointed maxillary 

 palpi; two rows of tubercules on the ampullae and no caudal spine. From 

 facetus and quierci it can be distinguished by the more robust form and 

 velvety pubescence on the pronotum. 



NOTES ON THE LARVAE OF SOME CEPHIDAE. 



BY WILLIAM MIDDLETON, 



Scientific Assistant, Forest Insects, Bureau of Entomology. 



This paper, which is a contribution from the branch of Forest 

 Insects, Bureau of Entomology, is the first of a series which will 

 deal with descriptions, notes and keys of North American Sawfly 

 Larvae. The present paper is based on the available material 

 of the family Cephidae and consists of descriptions of five species 



