Il6 ENTOMOLOGICAL NEWS. [April, '07 



a newly hatched larva and an unhatched egg taken together for 

 comparison. 



Figure 4 of the plate is a photograph from life of the adult 

 Benacus. It was taken while clinging to a white board in an 

 aquarium, head downward (the photo print accidentally 

 mounted in the opposite position for the plate). As is well 

 known, the adult flies freely from pond to pond, coming with 

 Belostonta to electric lights in cities and towns. It lays its eggs 

 upon a dry stem several inches above the surface of the water. 



Studies in Certain Cicada Species. 



By John B. Smith and John A. Grossbeck. 



Plates III, IV, V. 



' This study originated in the desire of the senior author to 

 prepare for his annual report an account of the periodical 

 Cicada, a brood of which was due to appear in New Jersey, in 

 1906, and incidentally, to call attention to the other species 

 that occurred within the limits of the State. Messrs. Davis and 

 Joutel had just published their notes in Entomological News, 

 Vol. XVII, page 237, and the junior author was assigned to the 

 task of separating out our material which was fortunately quite 

 rich, and to making such drawings and sketches as might be 

 required to bring out the interesting features : — ovipositor, 

 stridulating apparatus and the like. It was easy to separate 

 the bulk of our material into the species recognized by Davis 

 and Joutel, the more as Mr. Davis had used some of it in his 

 work; but there remained a puzzling residue, part of which 

 was eliminated when Prof. Osborn published his description 

 of Cicada fulvula in Entomological News, Vol. XVII, page 

 2,22. None of the recent authors had seemed quite satisfied 

 with the identification of pruinosa Say, and our own efforts to 

 fit the specimens usually listed under that name to the descrip- 

 tion were hardly more satisfactory. But we found among our 

 puzzles a very few examples that did fit, perfectly : the descrip- 

 tion as it stood might have been made from any one of them. 

 But this left the common form nameless, unless some of the 

 terms cited as synonyms of tibicen might really prove to be 

 this form. The idea of including our study in the annual re- 



