178 FAMILY V.— ACRIDIINyE. 



and middle femora more or less plainly annulate with coral 

 red; hind tibiae pale bluish-green, becoming more or less 

 yellowish apically, the spines pallid on their basal, blackish- 

 brown on their apical half; hind tarsi pale green, more or 

 less yell o wash. 



Length of body, male, 18.5 mm., female, 30 mm.; an- 

 tenn£e, male, 8.25 mm., female, 10.25 mm.; tegmina, male, 

 13 min., female, 20 mm.; hind femora, male, 11.6 mm., fe- 

 male, 17.5 mm. 



A female of this beautiful green locust is shown in Fig. 

 107. 



GENUS Melanoplus* Stal. 



Head rounded on top, not large in proportion to prono- 

 tum, nor prominent, but little longer than prozona, unless 

 the latter is distinctly transverse; vertex continuous with 

 the median sulcus of the face* with the portion between the 

 eyes channelled ; face with the lateral carina sharply defined; 

 eyes prominent, nearly straight in front and rounded be- 

 hind, antenna slender, extending to the tip of the pronotum 

 in the female, and beyond in the male: pronotum with a 

 distinct median carina, the lateral carina obtuse and the 

 transverse incision more or less distinct. Tegmina, w^hen 

 fully developed, narrow, rarely rather broad, but then very 

 distinctly tapering, more or less tapering in the distal half; 

 as long, longer or shorter than the abdomen; hind wings 

 somewhat shorter than the tegmina. First joint of hind 

 tarsi as long as the last joint; pulvilli between the claws 

 large; last joint of abdomen of the male much swollen, 

 cerci of male very variable, very rarely styliform, and then 

 the subgenital plate is either exceptionally broad or only 

 moderately narrow, and the apical margin elevated. 



This American genus of locusts is very well represented 

 in Minnesota, and man}^ more species wall be found upon 

 closer exploration. Besides those described the following 

 species have been found in our state: viridipes Walsh; 



•Black armor. 



