102 ENTOMOLOGICAL SOCIETY 



Sci. Phil., in, 126), says : " The larva inhabits detached branches 

 of the genus Carya (hickory), the perfect insect appearing in 

 May in S.E. Pennsylvania." Glover states that it also infests 

 walnut. Although half a century has elapsed since the insect 

 was described, it is still extremely rare. It has been recorded 

 also from southern New Jersey ; my specimen was obtained on 

 the Virginia shore of the Potomac, and we may safely infer that 

 the species also inhabits the intervening territory of Maryland, 

 Delaware, and the District of Columbia. 



Mr. Howard presented the following paper, illustrating it 

 by black-board drawings : 



NOTE ON THE MOUTH-PARTS OF STENOPELMATUS. 

 By L. O. HOWARD. 



Dr. Packard, in his " Review of the Systematic Position of 

 the Orthoptera in Relation to other Orders of Insects," gives, 

 with some detail, the relative characters of the typical insects 

 throughout the order Orthoptera, but does not seem to have ex 

 amined Stenopelmatus, a striking and somewhat aberrant form. 

 A recent examination made of the mouth-parts of a single speci 

 men indicates that the sclerites approach most nearly to those 

 of Anabrus, as might have been expected. The submentum is 

 represented by a transversely oval chitinous sclerite in the mem 

 branous wall of the gula. The mentum is a large rhomboidal 

 sclerite whose transverse diameter exceeds its length. The ligula 

 is slightly divided at tip and the paraglossae are hairy and mov 

 able. The palpiger is indistinctly differentiated. The maxillas 

 in particular resemble those of Anabrus. The cardo is large and 

 proceeds at right angles from the ligula. The stipes is inserted 

 at right angles upon the tip of the cardo. The palpifer is small 

 and indistinctly separated by a suture. The subgalea is narrow 

 and weak. The lacinia is very large and strong and furnished 

 with two teeth, the apical one being still further dentated into 

 one large and one small tooth. The inner edge of the body of 

 the lacinia is densely bristly. In the galea was exhibited a 

 strange asymmetry which is my main object for referring to this 

 insect. The right galea is stout, well rounded, and its tip is 

 evidently functional as a masticating or piercing organ since its 

 point is composed of dense dark-brown chitin. The left galea, 

 on the contrary, becomes flattened and subfoliaceous at its tip, 

 which appears almost membranous, is yellowish in color and 

 evidently not at all fit for the same purpose as its mate. The 

 labrum is very large and very movable, almost half as long as 



