120 CRABS AND INSECTS. 



and long antennae, while the ovipositor is often as long as 

 the entire body. The shrill cry is the call of the male, 

 made by elevating the fore-wings and rubbing them on 

 the hinder ones. Their eggs often exceed 300 in number, 

 and are generally placed in the ground. 



NOTE. The mole cricket shows great affection for its eggs, placing 

 them in underground cemented cells, and moving them near the surface 

 or deeper, according to the weather. They have obtained such a hold 

 upon the extreme outer keys of the Florida reef that it is almost im- 

 possible to cultivate anything. 



Works on Orthoptera for further reference. 



" North American Orthoptera and Catalogue of New England Spe- 

 cies," S. H. Scudder, in " Boston Journal of Natural History," vol. vii ; 

 " Songs of the Grasshoppers," S. H. Scudder, "American Naturalist," 

 vol. iii, p. 113. 



Order IV. Half- Winged Insects (Hemiptera). 

 General Characteristics. Bugs having the mouth-parts in 

 the form of a sucking beak ; the fore-wings thickened at 

 their base. 



Bird- Lice (Mallophaga). These are low forms, para- 

 sitic upon the hairs and feathers of other animals. Nirmus 

 lives on birds, Gyropus on the por- 

 poise, etc. 



Bed - Bugs (Membranacei). 

 In this family are found the flat- 

 bodied bed-bugs Cimex (Fig. 

 146). The eggs are oval, the 

 young escaping by pushing up a 

 regular lid at one end. They in- 

 FIG. 146. Bed-bug. fest wood-work, pigeons, swallows, 



bats, and various animals. 



Chinch-Bugs (fygentbfy* In the common chinch- 

 bug the female deposits about 500 eggs twice in a season. 

 They appear upon wheat in June, and afford a good ex- 

 ample of incomplete metamorphosis (Fig. 147). 



