332 REPORT OF STATE GEOLOGIST. 



border slightly flaring to receive the head; the posterior half widen- 

 ing but little; the median carina usually visible throughout but more 

 distinct on the metazona; the hind margin broadly obtuse angled; 

 the prozona about a third (male) or scarcely (female) longer than 

 the finely rugulose metazona. Tegmina slightly surpassing the hind 

 femora in both sexes; very gradually tapering to a well rounded 

 apex. Extremity of male abdomen moderately recurved; the cerci 

 large, broad; the basal half oblong; the apical half expanded to 

 double the width of the basal, the upward expansion being twice or 

 more as large as the downward. Furcula wholly wanting. Sub- 

 genital plate of moderate width, the apex rather abruptly elevated 

 and thickened. (See Fig. 18, Plate II.) 



Color: Dark gray, much mottled with blackish. Head and face 

 greenish gray mottled with fuscous; the occiput and disk of prozona 

 darker. The usual black bar behind eye on upper half of lateral 

 lobes is broken and somewhat indistinct. The disk and sides of meta- 

 zona and the tegmina are thickly sprinkled with numerous rounded 

 or quadrate fuscous spots, which give to the insect a grizzly appear- 

 ance, quite distinct from any other of our Melanopli. Hind femora 

 alternately and plainly barred with blackish and dull yellow on the 

 upper and outer faces; the lower face and basal third of inner face 

 coral red. Hind tibice either dull red or gray, or a mixture of both: 

 the spines black. Abdomen clay yellow beneath. 



Measurements: Length of body, male, 24 mm., female, 27 nun.; 

 of antennae, male, 14 mm., female, 12 mm.; of pronotum, male, 5.5 

 ram., female, 6 mm.; of tegmina, male, 20 mm., female, 22 mm.: of 

 hind femora, male, 13 mm., female, 15 mm. 



This prettily mottled locust has been taken in Crawford, Monroe. 

 Vigo, Putnam, Montgomery, Marion, Marshall and Fulton counties, 

 but is nowhere common, seldom more than half a dozen being seen 

 each season. It is preeminently an autumn insect; the first mature 

 specimen having been taken on August 20th, while most of those 

 seen were in October and November after heavy frosts. In central 

 Indiana it frequents for the most part low wooded tracts along 

 streams, where it may often be noted resting on the trunks of trees, 

 two OT three feet above the ground. In the northern part of the 

 State it has been found only in the depths of the tamarack swamps 

 of Fulton and Marshall counties. While other Acridida? are common 

 up to the very border of the tamarack growth, this and two spe- 

 eies of grouse locusts were the only ones found within this border. 

 Several pairs of pundulatus were taken in coitu on September 24th. 

 It is not an active insect; usually after one or two short leaps, 



