214 



so i; TOON' ('(I williiii llinl tlicy lonii, when Uroii^hl lo^cl lici-, ;i tiihc tlii'oii^li 

 wliicli the (\i!;fi;.s arc ])ass('(l. The ci'irkcts Iraxcl mostly hy jiim|)iii<;, 

 and tlu! liiiid tliiji;hs aw usually ciilar^c^d. The males all make a [)(H'.nliar 

 I'asping noise by rubbing the veins of oiie \ving-co\'er upon those of the 

 other. 



Tui') I'lvNNS'* L\ AMA l<'l 1', !,!)-( If ICK I'lT. 



dri/llus pcinisi/lnnnCu.s Hui'm. 



'fills f'onunon black cricket has been many times found in Sei)teniber 

 and ()ctob(>r injui'ing corn grains at the lip of the ear, in no case, liow- 

 ever, except where the ear was wholly or partly on the ground. It is 

 very closely related to the conunon field-cricket, and <juite possibly 

 some of the nymi)hs found eating corn may lie of the latter species. 

 l*'ield-crickets are nuicli nioi'c geiiei-all\' injiu'ious to other |>lanls, to the 

 tomato, for example, which they may cut. olf close above the ground, and 

 to stravvlxM'T'ies, which they occasionally spoil by eating i\w seeds. They 

 somelimes make llieii- way into houses, where they do injuries identical 

 with those of the common domestic crick(>t. They have also been 

 known to injure clo\-ei-, and hav(^ shown traces of a carnivorous habit 

 in the destruction of young gi'asshoppers. 



'i'lie eggs of this sjx^cies are laid in midsummer, the young hatching 

 in July and August and luostly matui'ing the following spi-ing. The 

 adults remain until the ad\-eiil of frost, 'i'hey ai'e most conunon in 

 open woods among leaves. 



This cricket has a shoi-t body, about three fourths of an inch long, 

 with a lai'ge and globose head and larg(> and rounded eyes. The ovi- 

 positor is from lialf to thi-ee fifths ol' an inch in IcMigth. The whole 

 surface is shining black except the wing-covers, wliicli are often more 

 or less grayish or reddish. 



Tuh; STinrioi) Chickkt. 



Ncnioltius jiisridlus i)e(}. 



A small blackish s])ecies (Fig. 225, 22(5), about thn^e (Mghths of an 

 inch long. On tlie lunid ai'(^ four i)ale longitudinal stripes, often indis- 

 tinct, and there is also a black line on each side of the prothorax con- 

 tinuous with a line of the satiu' color along tlu^ si(l(>s of the wing-covers. 

 'J'he ovipositor is straight and poinfeil ()bli(jU(>ly upwards, and is as 

 long as the hind femora. Th(> hind wings of one 

 variety are ov(M" twice the lengtli of the wing-covers, 

 and project beyond tluMU like tails. In another 

 vai'iety of the species th(^se wings ar(> aborted and 

 bi'oadly rounded at the end. 'I'his latter form is tlu> 



l"'i(!. 225. The Striped i i i ■ iii- ■ i i i c . I l ,4 , 



Cricket, Nemobius fan- moreahuudaut ui 1 lluiois, a IK I has l)(>(Mi tound late 

 naturaifee"'"- ''''"'" iu September feeding on th(> corn grain in lields at 



