NO. l6.] ORTHOPTERA OF CONNECTICUT. 85 



length of its greatest depth. Valves of the ovipositor strongly 

 protruding. 



FIG. 25. a. Mecostethus platyt>terus, male. Ventral view of tip of abdomen. 



b. M. platypterus > female. Disk of pronotum. 



c. M. lineatus, female. Disk of pronotum. 



Key to Species. 



Lateral carinse of pronotum distinctly divergent behind. 

 Prozona shorter than the metazona. Scapular area of 

 tegmina with a pale basal streak lineatus 



Lateral carinje of the pronotum nearly parallel. Prozona 

 and metazona of about equal length. Scapular area of 

 tegmina without a pale basal streak platypterus 



M. lineatus Scudder. 



General color yellowish to dark brown, the males usually the 

 lighter. A narrow yellow line (more or less obscure in the 

 female) extending from the upper border of the eye to the pro- 

 notum ; below this is an indistinct dark band extending across 

 the upper part of the lateral lobes of pronotum. The tegmina 

 with a distinct yellow streak along the base of the discoidal area, 

 extending from one-half to two-thirds their length. Hind femora 

 with the outer face yellowish or reddish brown, darker below, with 

 the lower face usually bright red, the apex black. Hind tibise 

 yellowish with a pale ring towards the base ; spines black. The 

 tegmina of this species are narrower and of a more uniform 

 color than in platypterus. The teeth of the rasp are low and dull. 

 The under side of the ninth abdominal segment of the male has 

 no mid-stripe of black. 



Measurements. 



Body Antennae Tegmina Hind Femora 



Female 34-38 10-11.5 26-31.5 18-21 



Male 23-27 11-12 21-26.5 14.5-18 



Morse states, " Though somewhat local, this species is rather 

 common in southern New England in wet, sedgy meadows along 



