FAMILY v.— ACRIDIIN^. 



1,S5 



ceus tinge, feebly bimaculate with fuscous above, the spots 

 often extending half way across the inner face, the lower 

 face castaneous, occasionally ruddy, the geniculars are black; 

 hind tibi« bright red sometimes feeby infuscated towjirds 

 the base, and with a fuscous patellar spot, the spines black 

 in the apical half, crowded, eleven to sixteen, usually twelve 

 to thirteen, in number in the outer series. Extremity of 

 male abdomen as shown in Fig. 108. 



Length of body, male, 17 mm., female, 22 mm.; anten- 

 nae, male and female 8 mm.; tegmina, male, 5 mm., female, 

 5.25 mm.; hind femora, male, 10 mm., female, 12.75 mm. 



This is not a common locust, but is sometimes found 

 late in summer, in dry places. 



Melanoplus Dawsoni Scudder. 



Short or long wing, of medium or rather small size, ob- 

 scure fusco-testaceous. Head slightly prominent in the 

 male only, olivaceo-testaceous, infuscated 

 above with a broad piceous, post-ocular 

 band ; vertex tumid, distinctly elevated 

 above the pronotum, the interspace be- 

 tween the ej^es rather broad, at least twice 

 as broad as the first antennal joint ; eyes 

 not very large and prominent; antennee 

 ferruginous, four-fifths (male), or three- 

 fifths (female), as long as the hind femora. 

 Pronotum sub-equal (male) or distinctly 

 compressed above anteriorh^ (female), 

 short, the disk transversely a little convex 

 and passing into the vertical lateral lobes 

 by a rounded angle, whicb is nevertheless 

 so abrupt as to form, at least in the male, 

 tolerably distinct lateral carinae; lateral 

 lobes lighter colored below than the disk, 

 Fig. 110.— Afe/ano- abovc ou the prozona a broad, lustrous, 



p/asDaivson/,female. -i i i -i i i 



Original. dariv coloved band, sometimes obsolete. 



