294 FAMILY VI. ACRIDID^E. THE LOCUSTS. 



$.6; of tegmina, $, 20 27, 9, 2735; of hind femora, $, 11.5 14, 9, 

 1417 mm. (Fig. 109.) 



This species has been taken in Indiana only along the south 

 shore of Lake Michigan, where it is common, and about lakes in 

 Steuben Co., in the northeastern corner of the State. It flies rap- 

 idly and noiselessly for long distances and, unless carefully marked 

 down, is very difficult to detect. The darker specimens are always 

 found at some distance from the lake, where there is a scattering 

 vegetation; the light colored ones on the pure sand of the imme- 

 diate shore. It has been seen nowhere more than a half mile back 

 from the water margin, and then only on the bare crests of the 

 highest sand ridges and dunes. The earliest date on which ma- 

 ture specimens have been taken was July 25th, and the latest Oc- 

 tober 15th, though they are doubtless to be found both before and 

 after those dates. It probably occurs about the margins of the 

 larger lakes in the northern third of the State. 



Walker (1898, 2G2) has separated the form found inland along 

 the Great Lakes under the racial name interior, stating that they 

 differ in the broader fuscous band of wings, more distinct fuscous 

 markings and smaller size. All of these differences are compara- 

 tive only, the series at hand from both sea and lake shores con- 

 taining examples which could be easily and properly referred to 

 either form. I, therefore, regard his name as wholly unnecessary. 



The range of maritima is given by McNeill as "Atlantic States 

 from Virginia northward and along the shores of the Great Lakes 

 west to Illinois." In Michigan it is reported by Hubbell from 

 Huron and Chippewa counties. In southern Ontario it is, says 

 Walker (loc. cit.), found plentifully along the beaches of the 

 Great Lakes and their islands, ''where it flies about the coarse 

 grasses which grow at a short distance from the water's edge." 

 Westward it extends to Minnesota where, says Somes (1914, 60), 

 it "occurs in some abundance on the sandy flats of the Mississippi 

 and other streams in the southeastern part of the State. There it 

 delights in the open sunshine, often walking aimlessly about upon 

 the sand for long periods without any attempt at feeding, and ap- 

 parently merely enjoying the warmth. When approached too 

 closely it crouches close to the sand prepared for flight, but 

 seemingly aware of its protecting hues and not arising until some 

 unusual or rapid movement alarms it. The flight is very strong 

 and it can, and does at times, cover unusual distances for an 

 Oedipod." 



Southward T. iiiftritinifi is now known along the coast as far as 

 Atlantic Beach. Fla. (/?. & #., 1916, 190) ; some of the specimens 



