332 FAMILY VI. ACRIDID.E. THE LOCUSTS. 



green, with a row of purplish, dots along each side of frontal costa. Me- 

 dian fuscous stripe of occiput and vertex more often complete and with a 

 median thread of yellow. Tegmina with entire dorsal area purplish-red. 

 Hind femora more strongly tinged with purplish. Differs structurally 

 from brevipennis in having the fastigium in front of eyes with a rathei 

 deep median sulcus, male, or distinct concavity, female. Pronotum 

 slightly longer and more narrow, the metazona less flaring and with hind 

 margin distinctly but broadly obtuse-angulate. Tegmina and prosternal 

 spine different as described in key, the inner edges of the former over- 

 lapping their full length. Supra-anal plate of male with margins and me- 

 dian basal ridges much higher than in brevipennis. where the margins 

 are scarcely at all raised and the ridges but feebly so. Cerci narrower at 

 base, more regularly tapering from base to apex (PI. Ill, a.) Length of 

 body, <$, 1718.5, 9, 2430; of antennae, $, 88.3, 9, 9 10.2; of prono- 

 tum, $, 4.5 5, 9, 6 6.5; of tegmina, $, 1213, 9, 1720; of hind fe- 

 mora, $, 11 11. G, 9, 13.5 1C mm (Fig. 119.) 



In Indiana this dainty and prettily colored species has been 

 noted only in Lake County, where it has been taken in two locali- 



ities. On September 19, 1898, a single 

 pair were secured from the long grasses 

 bordering the margin of a swale north 

 of Millers. Though careful search was 

 Fig. 1 19. Female, natural size, made there and elsewhere in the north- 

 ern counties, no others were secured un- 

 til July 24, 1902, when they were found to be rather common in a 

 long, low, marshy tract, a mile southeast of Hammond. Here the 

 males were especially active, leaping from one grass stem to an- 

 other several times in succession, and dodging around the stem 

 the instant they clasped it with their legs. The females were 

 oftentimes easily picked up by the fingers. No attempt was made 

 by either sex to use the wings in escaping. 



In Florida H. pmtensis has been recorded only from Carra- 

 belle, Fort Barrancas, Warrington and Live Oak in the northern 

 third of the State. Morse (1904, 16) says that in this region it is 

 not uncommon in August along the Gulf shore among the xero- 

 phytic strand vegetation ; while at Live Oak it was found by R. & 

 H. among wire grass and other low plants in small clumps of 

 dwarf oaks on the border of a sink. 



After a careful comparison of numerous examples of H. prn- 

 tensis from Indiana, Iowa and Nebraska with those of typical 

 'brevipennis from New England, I cannot agree with Morse and 

 R. & H. that it is only a long-winged form of the latter species. 

 Aside from the difference in wing length, which may be, and prob- 

 ably is a variable character, the other structural and color dif- 

 ferences pointed out in the key and description are constant in the 



