OKTitOPTEilA OF INDIANA. 321 



Extremus is an insect of northern range, Walker's type being re- 

 corded from Arctic America. According to Scudder "it probably 

 occurs thronghout the larger part of Canada and the northernmost 

 United States. It has also been recorded from several points in 

 Alaska." 



71. Melanoplus angustipennis (Dodge). The Karrow-winged Locust. 



Caloptenus anguMlpainix Dodge, 4 6, IX, 1877, 111. 



Melanoplus angustipennis Brim., 22, I, 1885, 138; Id., 28, XXVm, 

 1893, 24, Fig. 12; Id., 34, 1896, 121, Fig. 23; Id., 36, 1899, 

 270, Fig. 58; Scudd., 17 9, XXXVI, 1897, 26, 34; Id., 18 1, 

 1897, 136, 305, Plate 20, Fig. 6; Id., 188, 1900,53; Bl. 15. 

 XXX, 1898, 58; Lugg., 8 4, 1898, 198, Fig. 123. 



Mclnnophis coccineipes Qcndd., 17 9, XXXVI, 1897, 26, 34; Id., 18 1, 

 1897, 136, 303, Plate 20, Figs, 3-5; Id., 18 8, 1900, 56. 



Size, medium. Vertex feebly swollen, slightly elevated above the 

 pronotum; the interspace between the eyes one and a half times 

 (male) or twice (female) as broad as the basal joint of antenna; the 

 front half strongly sloping, distinctly and broadly (male) or feebly 

 (female) sulcate throughout. Frontal costa rather' wide and equal 

 throughout, faintly sulcate at and below the ocellus. Antennae about 

 five-sixths (male) or two-thirds (female) as long as the hind femora. 

 Pronotum with the disk feebly enlarging on posterior half, the me- 

 dian carina distinct only on the metazona; the hind margin broadly 

 obtuse angled; prozona distinctly (male) or scarcely (female) longer 

 than the closely punctate metazona. Tegmina reaching or slightly 

 surpassing the tips of hind femora, slender, tapering. Extremity of 

 male abdomen scarcely recurved, the cerci rather short, spatulate, 

 incurved, the middle third narrowest, the apex broadly rounded and 

 hollowed on tlie outer face. Furcula consisting of a pair of diverg- 

 ing, tapering, cylindrical spines, about a third as long as the plate on 

 which they rest. Sub-genital plate longer than broad, the apex a 

 third narrower than base, and with a slight notch or emargination 

 in the middle. (See Fig. 13, Plate II.) 



Color: Dark grayish brown or fuscous; often with a reddish brown 

 tinge. The occiput and disk of pronotum fuscous; the lower halves 

 of lateral lobes lighter. The usual dark bar behind the eye covers 

 the upper half of the sides of prozona. Tegmina brownish fuscous, 

 either without spots or with small, indistinct fuscous ones along the 

 middle area. Hind femora dull yellowish brown, obscurely and ob- 

 liquely banded with fuscous; the lower face dull yellow; the knees 

 blackish. Hind tibiae either pale greenish blue or bright red, the 

 spines black. 



