148 
ORTHOl 5 TF.RA. 
IV. JUMPERS. ( Orlhoptera saltatoria.) 
These are by far the most abundant and prolific, and the 
most destructive of the Orthopterous insects. They were all 
included by Linnaeus in his great genus Gryllus, in separate 
divisions, however, three of which correspond to the families 
Achetadce* Grylliadce ,f and Locustiadce 4 in my “ Catalogue 
of the Insects of Massachusetts,” and may retain the synony- 
mous English names of Crickets, Grasshoppers, and Locusts. 
These three families may thus be distinguished from each 
other. 
1. Crickets (Achetad.-e) ; with the wing-covers horizon- 
tal, and furnished with a narrow, deflexed outer border ; 
antennae long and tapering ; feet three-jointed (except G5can- 
thus, which has four joints to the hind feet) ; two tapering, 
downy bristles at the end of the body, between which, in 
most of the females, there is a long spear-pointed piercer. 
2. Grasshoppers (Gryli.id.-e) ; with the wing-covers slop- 
ing downwards at the sides of the body, or roofed, and not 
bordered ; antennae long and tapering ; feet with four joints ; 
end of the body, in the females, with a projecting sword or 
sabre-sliaped piercer. 
8. Locusts (Locustadas) ; with the wing-covers roofed, 
and not bordered ; antennae rather short, and in general not 
tapering at the end ; feet with only three joints ; female with- 
out a projecting piercer. 
1. Crickets. ( Achetadce .) 
There may sometimes be seen in moist and soft ground, 
particularly around ponds, little ridges or hills of loose fresh 
earth, smaller than those which are formed by moles. They 
cover little burrows, that usually terminate beneath a stone 
or clod of turf. These burrows are made and inhabited by 
mole-crickets, which are among the most extraordinary of 
the cricket kind. The common mole-cricket of this country 
Gryllus Acheta , Linnaeus. t Gryllus Tcitigonici, L. 
{ Gryllus Locusta, L. 
