190 FAMILY v.— ACRIDIIN^. 



median carina distinct on the metazona, faint on the pro- 

 zona, obsolete between the sulci ; sides of the pronotum hardly 

 shouldered, or with very rounded should- 

 ers; transverse sulci of prozona pretty 

 distinct and continuous. Prosternal 

 spine rather short, appressed conical, 

 broadly rounded on tip. Tegmina ex- 

 tending to or a little beyond the tip of 

 the abdomen, slender, scarcely tapering, 



Fip. 115. — Melanoplus f A ixj^l i a ry 



occideatalis, tip of male prOIUSCly maCUlatC thrOUghout. Gen- 

 abdomen. Original. i i" r • i i 



eral color ferruginous brown above, 

 mottled strongly with blackish-fuscous, livid brown below ; 

 a blackish-brown median stripe, broadening posteriorly, 

 passes from between the eyes to the back of the head, but 

 seldom continues, and then less deeply, upon the pronotum ; 

 the face and genae var}' from yellow to testaceous and are 

 seldom blotched by dusk}^ colors, excepting on the genee. 

 Tegmina dark brownish cinereous with a slender median 

 yellow stripe, frequently broken by quadrate fuscous or 

 blackish spots, and similar spots are scattered rather dis- 

 tantly all over the tegmina, giving them an unusually 

 speckled appearance. Hind femora variable, either with ob- 

 lique pale patches on a dark ground or — and generally — the 

 reverse; hind tibiee glaucous, with black-tipped spines, ten 

 or eleven in number in the outer series. 



Extremity of male abdomen as shown in Fig. 115. 



Length of body, male, 18 mm., female, 25 mm.; antennae, 

 male, 9.5 mm., female, 10.25 mm.; tegmina, male, 16 mm., 

 female, 21 mm.; hind femora, male, 11.5mm., female, 14mm. 



Only a few of this species were found in Otter Tail County. 



Melanoplus atlanis Riley. 



THE LESSER MIGRATORY LOCUST. 



From medium to a little above medium size, dark griseo- 

 fuscous, often tinged more or less heavily with ferruginous; 

 head a little prominent, olivaceo-testaceous freckled with 



