GO 



NEW NORTH AMERICAN MELANOPLI (oRTHOPTERa) 



Measurements {in millimeters) of extremes 



Length Length Width of Width of Length 



of of pronotal pronotal of 



hody i)ro- disk disk at caudal 



notuni cephalad principal femur 

 sulcus 



cT 



Type 21.4 4.2 2.8 3.4 11.7 



Paratypps, (Sr^y 21-25 4-5 .... .... 11-12.5 



BigBar.Biiti.sh Columbia, (4) 17-18.5 3.7-3.8 2.5-2.0 3.2-3.3 10.3-10.4 



9 



Allotype 24 4.8 3.8 4.8 13.4 



Pnratijpes, (JK)^^ 24-40 4.8-6 .... .... 12.5-15 



Big Bar, British Columbia, (2) 21.5-22.2 4.2-4.3 3.3-3.3 4.1-4.2 12.3-12.2 



The size reduction shown by the Big Bar specimens is probably attrilnit- 

 able to different local environmental conditions. 



General coloration of dorsal surface of males chestnut-brown, deepening to 

 shining blackish brown proximad on sides of abdomen, except ventrad toward 

 margins of tergites, where narrow invasions of the buffy color of the ventral 

 surface occur. Ventral surface light ochiaceous-salmon, or antimony-yellow 

 with a salmon tinge. Frontal costa, face, genae and ventro-lateral portions 

 of pronotum and thorax buffy, darkened by very numerous dots and flecks of 

 dark brown. Cephalic and median limbs similar, but not as much darkened. 

 Pronotal lateral lobes with dorsal portion slightly darker and more shining 

 than tlisk, this weakly defined band continued on the sides of the thorax. 



Caudal femora buffy, with mimite flecks and dots of dark brown, dorsal 

 and external faces with two broad bands of chestnut-brown, which are oblique 

 on the external pagina, the genicular areas also darkened. In many specimens 

 these portions are often greatly suffused, in some so dark that the bands have 

 become almost obsolete. Internal surface of caudal femora proximad and 

 ventro-internal stn-face distad vinaceous rufous or dragons blood red. Caudal 

 tibiae buffy, frecjuently strongly washed with mummy brown; spines and 

 sj)urs buff jM-oximad, black distad. 



The females vary in general colmatioii from cliest nut-brown lo prout's 

 brown and are much more uniform, the dark(>r bands of the body and caudal 

 femora being subobsolete or ab.sent. In (his sex the ventral surface of the 

 doby appears to be light brown, but is seen to lie usually niuili discolored and 

 darkened in dri(>d sjx'cimens. 



Mr. ]')Uckcll wrilcs thul this insect is "extronioly comiiioii in 

 soini-sylvun locutions, cspccijilly in nplnnd pjisturos l)enealh the 

 aspens {Pojyulii.s Ircnivloidcs). In so'iic ])Uices it is the connnon- 

 est grassli()p])('i' lo he lonnd." 'riic species was found hatching 



'^ These measurements were taken l)y Mr. i^iickcll, Ikuii the material l)efore 

 drying. 



