58 
neighborhood of the spiracle. The sternal intersegmentals (fig. 1, és and 
cs) are termed the presternite, and cervical sternites. They are 
well developed in such insects as Leuctra, Capnia, etc. 
sur 
Fig. 7. 
The cervical intersegmentals, or those in front of the prothorax, 
are called cervical or jugular sclerites. The designation “cer- 
vicum” was formerly applied to the neck region, since the nominative 
singular (cervix) of this noun is always used to designate the posterior 
neck-life region of the head. It is better, however, to use some such 
compound term as veracervix, for the true neck region. The cervical 
sclerites are usually represented in the lowest families of all the orders, 
