320 REPORT OF STATE GEOLOGIST. 



four-fifths (male) or two-thirds (female) as long as the hind femora. 

 Pronotnm widening on the metazona, especially in the female; the 

 median carina visible throughout, more distinct on metazona; the 

 hind margin strongly obtuse angled, the angle rounded in the female; 

 the prozona one-third, (male) or one-sixth (female) longer than 

 the closely punctate metazona. Tegmina (in Indiana specimens) 

 reaching nearly to tip of abdomen in the male, covering one- 

 half to three-fourths of abdomen in female, rather broad at ba?e, 

 but rapidly tapering to a sub-acuminate apex. Extremity of male 

 abdomen but little recurved; the cerci short and broad, slightly fal- 

 cate, the basal third feebly tapering, the apical third but little, if 

 any, wider than the middle; the apex obliquely rounded. Furcula 

 consisting of a pair of parallel, tapering, cylindrical spines, about half 

 as long as supra-anal plate, and resting upon the ridges bordering its 

 median sulcus. Sub-genital plate half as broad at apex as at base, 

 the apical margin well rounded, and not elevated. (See Fig. 12, 

 Plate II.) 



Color: Dark greenish yellow, tinged with fuscous. Head, green- 

 ish yellow, darker above. The usual black bar behind eye extends 

 along the upper half of lateral lobe of prozona; below which the lobe 

 is greenish yellow. Disk of pronotum and tegmina dull olive brown, 

 the latter sometimes with a few small fuscous spots along the dis- 

 coidal area. Hind femora dull yellow, tinged with reddish brown, 

 usually without traces of dark crossbars; the lower face generally 

 pale orange; knees feebly infuseated. Hind tibiae pale red, or dull 

 yellow, the spines black. 



Measurements: Length of body, male, 18 mm., female, 22 mm.; 

 of antennae, male, 9 mm., female, 7 mm.; of pronotum, male, 4 mm., 

 female, 5 mm.; of tegmina, male, 10 mm., female, 9.5 mm.; of hind 

 femora, male, 10 mm., female, 11.5 mm. 



This species first came to my notice in the State on August 6, 1897, 

 when it was found near Del^ong, Fulton County, in an open peat 

 bog which was surrounded on all sides by a heavy growth of tamarack, 

 Larix amerimna Michx. But about a dozen specimens were secured, 

 all of which were of the short winged form M. e. junms. When dis- 

 turbed they gave several short, quick leaps, and then burrowed as 

 far as they could into the dense mass of sphagnum moss which every- 

 where covered the bog. It has since been taken several times in the 

 same place; also in a marsh near the south end of Lake Maxinkuckee; 

 and prol)ably occurs about the most of the peat bogs and marshes 

 of the northern third of the State. Mr. C. H. Bollman evidently 

 found it near Bloomington, Monroe County, since Scudder mentions 

 a specimen so labeled as occurring in tlic U. S. National Museum. 



