270 



FAMILY VI. ACRIDID.E. THE LOCUSTS. 



spots much smaller and more irregular in shape. Wings with basal half 

 varying from a pallid tint through pale lemon-yellow to deep orange, the 

 outer half with curved black band and transparent apex as in phoenicopte- 

 rus. Hind femora bright yellow within, with three transverse bars of black; 

 dull clay yellow without, with three more or less distinct, very oblique 

 fuscous bars. Hind tibiae yellow, with a paler ring near base. Occiput 

 convex; vertex with disk ill defined, almost flat, strongly declivent, broader 

 than long in both sexes, the median carina extending to front border and 

 with oblique cross carinse dividing the disk into four subequal portions, 

 the front pair the more distinct; lateral t'oveolae shallow, elongate-triangu- 

 lar. Frontal costa broad, flat, punctate. Antennae about as long as head and 

 pronotum, female, a third longer, male. Pronotum with median carina 

 low, cut near middle by the principal sulcus; metazona flat or nearly so, 

 not greatly widened, its hind margin obtuse-angled, surface with numerous 

 low, oblong-elongate glistening tubercles, its lateral lobes thickly punctate 

 and lateral carinse ill defined. Tegmina relatively broad, exceeding the ab- 

 domen in both sexes. Hind femora moderately slender, equalling or sur- 

 passing the abdomen by one-fourth their length, the basal half depressed, 

 dilated. Length of body, $, 2836, $, 3742; of antenna?, $, 1213, 

 9. 11 12; of pronotum, $,1, 9,9; of tegmina, $, 24 32, 9, 28 36; of 

 hind femora, $ , 16.5 IS, $, 21 23 mm. (Fig. 100.) 



This is the most common species of Hippisctis in Indiana, be- 

 ing especially abundant in the central and southern portions, but 



scarce in the north, where it 

 has been collected only in 

 Fulton and Marshall coun- 

 In central Indiana it 

 to reach maturity 

 about July 20th, from eggs 

 hatched in the spring. Like 

 others of its kind, it fre- 

 quents only dry. upland lo- 

 calities, being especially 

 abundant in open woodland 

 pastures, timothy and clover 

 meadows, along roadsides 

 and rail fences. The males 

 are shy, usually taking to 

 flight when an intruder is a 

 rod away and moving in a 

 straight line in the direction 

 they happen to be headed, 



without noise, save the rust- 

 Fig. ioo. Male. (After Lugger.) jj ng Q f tneip w j ngs> The fe- 

 males are very clumsy, being readily picked up with the fingers. 

 I have often placed one of them on the palm of one hand and with 



ties. 

 begins 



