566 



ORTHOPTERA. 



equal length, with a single small joint between them, a veiy 

 interesting exception to the almost universal rule among the 

 Locustarice." The Katydid, Cyrtojyhyllus concavus Say 

 (Fig. 563), has the fore wings concave, much produced in the 

 middle. The eggs, according to Hari'is, are "slate colored, and 

 are rather more than one-eighth of an inch in length. They 

 resemble tin}', oval, bivalve shells in shape. The insect lays 

 them in two contiguous rows along the surface of a twig, the 

 bark of which is previously shaved off, or made rough with her 

 piercer. Each row consists of eight or nine eggs, placed some- 

 what obliquely, and overlapping each other a little, and they 



are fastened to the twig with a 

 gummy substance. In hatching 

 the egg splits open at one end, 

 and the young insect creeps 

 through the cleft." In Phyllop- 

 tera the wings are narrower, but 

 still concave, and the ovipositor 

 is of moderate size, while in 

 Microcentrum it is ver}' small. 

 P. oblongifoUa Burmeister is 

 abundant in September, in New 

 England, being found farther 

 northward than the Katydid, and 

 when it flies it makes a whizzing 

 noise, compared by Hai-ris to 

 Fig. 563. that of a weaver's shuttle. He 



also states that "the females laj^ their eggs in the autumn 

 on the twigs of trees and shrubs, in double rows, of seven or 

 eiafht e^ffs in each row." These eaisis in form, size and color, 

 and in their arrangement on the twig, are very different from 

 those of the Katj^lid. Plmneroptera has still narrower wings 

 than the genera hitherto noticed, and the ovipositor is more 

 sharply turned upwards. The P. curvicauda of DeGeer (P. 

 angustifolia Harris) is very abundant, being the most connnon 

 species in Northern New England. 



In Conoceplmlus the front of the head is produced into a 

 cone. The species, generallj- pea green, often present brown 

 individuals. C. enskjer Harris is a commonl}^ distributed spe- 



