18 



GUIDE TO INSECTS. 



Table- are folded and in the character of the neuration they are quite 

 case 31. un iik e those of any other insect. 



Fig. 15. 



Table- 

 cases 

 31, 32. 



cerci 



Egg of common earwig, Forficula auricularia, greatly enlarged. 



The eggs are spherical, leathery, semitransparent. They are 

 deposited separately in small groups in the earth. 



Family PHASMID^E. 



These insects (1 070-1 096) are remarkable for their resemblance 

 to twigs, sticks, leaves, &c., whence their popular name Stick-insects. 

 Many of the species, such as Diapheromera (1081) for example, 

 are wingless in both sexes. In some cases the male has wings, the 

 female none ; in AcropJiylla (1092) and allied species both sexes have 

 ample wings. Aschvphasma (1 086) is one of the very rare instances 

 in which the front wings are entirely absent, the hind wings being 

 fully developed. The species of Phyllium (1094) are remarkable for 

 their resemblance to leaves this is especially the case in the female. 

 The male has delicate transparent hind wings. The female has no 

 hind wings, but the front ones are considerably developed, and the 

 arrangement of the veins gives them a very leaf-like appearance. 

 It should be observed that this wing consists almost entirely of the 

 part in front of the chief veins, the hinder part (that generally 

 developed in other insects) is reduced to a narrow strip. The male 

 has long antennae ; in the female they are very short. 



The eggs of Phasmidce are very remarkable. Some are vase- 

 shaped, others resemble seeds. They are very diverse in form, and 

 even in closely related species such as Phyllium siccifolium and 



