FAMILY VII.— (tRYLLIIK-E. 271 



forward, and every sense apparently on the alert. Then the 

 aphides provided for their food would be caught up one after 

 another with eagerness and devoured with violent action of 

 the mouth-parts, the antenna meanwhile playing up and 

 down in evident expression of satisfaction. Unless I had 

 provided ver}^ liberally not an aphis would be found in the 

 jar the next morning and the sluggish crickets w^ould have 

 every appearance of plethora." 



Q^cantlms angustipennis Fitch. 



Wholly ivory-white, rather deeply tinged with greenish ; 

 wings transparent and sometimes with a pale yellowish- 

 brown patch on top of the head. Head and prothorax less 

 prominent, and the latter much narrowed 

 anteriorly. Antennae with two elevated 

 black marks on the under side, the one at the 

 first joint hooked at the base, with the hook 

 thu^'Vi^guSp'^n- turned inward and the mark on the second 

 j"o'int^ of a^ntenn^a^^ joiut oblong. (Fig. 179.) RcadiW distin- 

 guished by the narrowness of the wang-covers 

 of the male, their breadth being just about one-third their 

 length. 



Average length from head to end of wing-covers, 14 

 mm.; body, 10 mm.; width, 3.5 mm. 



This is not a common species, and only a few have been 

 collected during August. It seems to prefer the taller trees, 

 hence is not readily found. Its stridulation is very different 

 from that of niveus, being a continuous faint reeeeeee', last- 

 ing about five seconds and terminating abruptly, with an 

 equal interval of rest. 



CEcanthus faciatus Fitch. 



Twoformsoccurin Minnesota, one of which is very much 

 darkerthan the other. The species is readily distinguished by 

 themarkingsonthefirsttwo jointsof theantennas. Asseen in 



