564 



ORTHOPTERA. 



G. domesticns Linn., has been introduced into the vicinity of 

 New York, as stated by Mr. James Angus. Our two largest 

 species are the Gryllus luctuosus Serville, known by the great 

 length of the fore wings, which project beyond the abdomen ; 

 and Gryllus abbreviatus Serville, which is found in the Middle 

 States. The most common New England species is the Gryllus 

 neglectus of Scudder, from which Gryllus niger Harris differs 

 in its much shorter ovipositor. The small 

 cricket so abundant in our fields is Nemobius 

 vittatus Harris, a brownish striped species ; 

 the genus differs from Gryllus in the last joint 

 of the maxillary palpi being double the length 

 of the penultimate, while in Gryllus, it is of 

 the same length. In CEcanthus niveus Serville 

 (Fig. 561, male*, fig. 562, female ; fig. 30, fore 

 Fig. SGI. wings of male and female, showing the broad 

 thin portion between b and c, used in producing the shrilling 

 noise) the wings are broad and very transparent, narrower in 

 the female, the hind legs very long and slender, and the male 

 is ivory white. The males make a loud shrilling noise, and 

 both sexes are found on plants, especially the grape-vine. 



Mr. W. Saundei'S states that the 

 female does considerable injury 

 to the raspberry and plum twigs 

 by boring into the branches for 



the purpose of laying its eggs,. and the Editors of the "Ameri- 

 can Entomologist" state that it severs grapes from the 

 branches. This genus leads to the next family. 



Mr. Scudder has described in the "Proceedings of the Bos- 

 ton Society of Natural Histoiy," Archegogryllus prisons, a fossil 

 cricket from the coal formation of Ohio. "One broken hind 

 leg and a fragment of a wing were found ; the leg was notice- 

 able in having the tibia furnished with several large promi- 

 nences, while the femur was smooth." 



LOCUSTARI^E Latreille. The large green Locusts are easily 

 distinguished by their large heads, and their compressed 

 bodies. The front from being vertical often inclines inwards, 

 owing to the greatly enlarged vertex, which is often produced 



