282 FAMILY VI. ACRIDID.E. THE LOCUSTS. 



on both pro- and metazona, especially on latter; prozona in male with, crest 

 of carina distinctly sloping toward head; notch plainly oblique, very nar- 

 row, often nearly or wholly closed above by the overlapping ends of the 

 carina (Fig. 90, e, f.) Tegmina surpassing femora by about one-third 

 their own length. Legs and ventral portion of < .y usually very pubes 

 cent, with long grayish hairs. Length of body, $, 19 25, 9, 24 30; of 

 antennae, $, 10 12.5, 9, 1013; of pro-otum, $, 57, 9, 6.57.4; of 

 tegmina, $, 1926, 9, 23 28; of hind femora, $, : 1 14, 9, 1416 mm. 

 (Fig. 103.) 



This small, but handsome, locust is quite common in the sand 

 covered areas of the northern third of Indiana. The earliest date 



for the adult is July 

 14th, in Fulton County, 

 when it was found in 

 numbers and had prob- 

 ably been mature for a 

 week or longer. It oc- 

 curs most abundantly 

 along the thinly vege- 

 tated sandy tracts twen- 

 ty rods or more back 



Fig. 103. Male. (After Lugger.) frQm tng water margin 



of lakes, in old sandy cultivated fields and along railways and 

 roadsides. In such localities it is often found in company with 

 Psinidia fenest rails and less frequently with $. bolli. It seldom 

 leaps when disturbed, but uses the wings to propel itself in a flight 

 of about 30 yards; the males making a faint crackling noise as 

 they clear themselves from the earth, while the females are noise- 

 less. In a corn field near Lake Maxinkuckee, I once found wyom- 

 ingianuni very common on August 17th, over about two acres of 

 the most sandy portion. Resting on the soil between the rows, 

 they were very difficult of detection, and eight times out of ten 

 were not seen until flushed, unless they had previously been 

 "marked down" as they alighted. A few were also taken from the 

 sandy margin of the lake, but careful search over a wide extent of 

 territory failed to reveal them elsewhere. It will probably be 

 found in the vicinity of most of the lakes of the State. 



This locust, as above defined, I consider sufficiently distinct 

 to retain as a valid species under the name given it by Thomas. 

 It was so retained by Scudder (1000) though made a variety of 

 collare by Saussure and Morse and a synonym of collarc by Kirby. 

 The two forms overlap in distribution and perhaps merge where 

 so overlapping. The retaining of wyomingianum as distinct is 

 therefore more or less arbitrary and a matter of individual opin- 



