206 



FAMILY v.— ACRIDIIN^. 



23 mm. Some specimens are much 

 smaller. 



This locust is but rarely found 

 in Minnesota; if found it is only of 

 local occurrence. 



Melanoplus bivittatus Say. 



Varying in general ground- 

 color from fusco -testaceous to very 

 dark brownish fuscous, striped 

 with fulvo- or pallid-testaceous. 

 Head flavo-testaceous, more or less 

 infuscated, the summit with a 

 broad, median, widening, black- 

 ish-fuscous stripe, which extends 

 backward from the front of the 

 fastigium but avoids the eye; 

 vertex gently tumid, the fastigium 

 broadly, equally and very shal- 

 lowly sulcate; frontal costa broad, 

 sub-equal, with roundish margins, 

 feebly sulcate at and below the 



„ r 1 1 > 1 i 11 Pi"- 132. — Melanoplus differ- 



ocellus, leebly punctate laterally, ent/a/s, ftmaie. original. 

 Pronotum enlarging a little from in front backward, 

 more feebly in the male than in the female; the median 

 carina slight but distinct throughout. Tegmina attaining, 

 or a little surpassing the hind femora, generally longer in the 

 male than in the female, brownish or blackish fuscous, the 

 anal vein marked by a slender flavous stripe, the discoidal 

 area not darker than the rest, generally almost clear but 

 frequently with faint and delicate mottling. Fore and mid- 

 dle femoraferruginous, moreorless heavily infuscated above; 

 hind femora rather long and moderately stout, ferrugineo- 

 testaceous, the outer and generally the inner faces black 

 above, flavo-testaceous below, the inner half of the upper 

 face thrice very broadly banded with black, the genicular 



