566 



ORTHOPTERA. 



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

 interesting exception to the almost universal rule among the 

 Locustarice." The Katydid, Gyrtophyllus concavux Say 

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

 middle. The eggs, according to Harris, are ' slate colored, and 

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

 resemble tiny, 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 Phyllap- 

 teni the wings are narrower, but 

 still concave, and the ovipositor 



is of moderate size, while in 



Microcentrum it is very small. 

 P. dblongifolioL 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 llnrris to 

 Fiji-. :><;:;. that of a weaver's shuttle. lit- 



also states that "the females lay their eggs in the autumn 

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

 eight eggs in each row." These eggs in form, size and color, 

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

 those of the Katydid. Phaneroptera has still narrower wings 

 than the genera hitherto noticed, and the ovipositor is more 

 sharply turned upwards. The P. cun'iamda of DeGeer (P. 

 angustifolia Harris) is very abundant, being the most common 

 species in Northern New England. 



In Conocephalus the front, of the head is produced into a 

 cone. The species, generally pea green, often present brown 

 individuals. C. ensiger Harris is a commonly distributed spe- 



