564 



ORTHOPTERA. 



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

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

 species are the Gryllus luduosus Serville, known by the great 

 length of tlie fore wings, whicli project beyond the abdomen ; 

 and Gryllus abbreviatus Serville, which is found in the Middle 

 States. The most common New England species is the Gryllus 

 ■negledus of Scudder, from which Gryllus niger Harris ditfers 

 in its much shorter ovipositor. The small 

 cricket so abundant in our fields is Nemobius 

 vittutus 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, hind 

 Fig. 5G1. wings of male and female, showing the broad 



thin portion betAveen 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 ivoiy Avhite. The males make a loud shrilling noise, and 

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



Mr, W. Saunders states that the 

 female does considerable injury 

 to the raspberr}' and plum twigs 

 ^'S- 562- i^y 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 History," Archegogryllus priscus, a fossil 

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

 leg and a fragment of a wing were foui^d ; 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 



