THE MARBLED LOCUST. 179 



and August, on dry barren hills and on sandy plains, upon 

 the scanty herbage intermingled with the reindeer moss. 



6. Locusta latipermis}* Broad-winged Locust. 



Ash-colored, molded with black and gray; wing-covers 

 semi-transparent beyond the middle, with numerous blackish 

 spots which run together at the base, and form a band across 

 the middle ; wings broad, light yellow on the basal half, the 

 remainder dusky but partially transparent, with black net- 

 work, and deep black at tip, and an intermediate irregular 

 band, formed by a contiguous series of black spots, reaching 

 only to the hind margin, but not continued towards the inner 

 angle ; hindmost shanks pale yellow, with a black ring below 

 the knees, a broader one at the extremity, and a blackish 

 spot behind the upper part of the shank. Length ^% inch ; 

 exp. ItV inch. 



It is possible that this may be a variety of the preceding 

 species, from which it diifers especially in the form and 

 width of the wings and in the colors of the hindmost shanks. 

 It is found in the same places, and at the same time, as the 

 barren-ground locust. 



7. Locusta marmoraia}^ Marbled Locust. (Fig. 8L) 



Ash-colored, variegated with pale yellow and black ; thorax 

 suddenly narrowed before the mid- yk^^.^i. ^ 



die, and the slightly elevated longi- -«s^ // 



tudinal line on the top is cut through 

 in the middle by a transverse fissure ; 

 wing-covers marbled with large whit- 

 ish and black spots, and semi-transparent at the end ; wings 

 light yellow on the half next to the body, transparent near 

 the end, with two black spots on the tip, and a broad inter- 

 mediate black band, Avhich, narrowed and curving inwards 

 on the hind margin, nearly reaches the inner angle ; hind- 

 most thighs pale yellow, black at the extremity, and nearly 



[ 15 X. marmorata must be referred to CEdqwda. — Uhlek.1 



