[904] MORSE: — NEW ACRIDIIDAE 



NEW ACRIDIIDAE FROM THE SOUTHEASTERN STATES. 



BY ALBERT P, MORSE, WELLESLEY, MASS. 



During a rapid trip through the southeastern states the past summer under the 

 auspices of the Carnegie Institution of Washington, for the purpose of studying the 

 Acridiidae of that region, the following new forms were obtained. These include 

 two species of Eotettix, one long-winged and eleven short-winged species of Melan- 

 oplus, and a Spharagemon. 



Eotettix pusillus sp. nov. 



A diminutive species readily distinguished from signatiis by its size and nearly circular 

 tegmina. Facial costa widest between antennae, nearly equalling interspace between eye?, 

 with parallel sides, abruptly narrowed below the median ocellus to two-thirds of its width 

 above. Disk of pronotum tectiform, distinctly convex in longisection, the mid-carina very 

 pronounced, the lateral carinae faintly indicated on the prozone, obsolete on metazone. 

 Tegmina broadly obovate or subcircular, two-thirds or three-fourths as long as the pronotum. 

 Tip of male abdomen upturned, supra-anal plate triangular, nearly or quite as broad as long, 

 pointed at apex, with sinuous sides. Furcula well developed, consisting of two broad 

 flattened lobes as long as or longer than the last dorsal segment. Cerci subconic, shorter 

 than supra-anal plate, two to three times as long as the width of base; acuminate, stout at 

 base, tapering to a slender tip. 



General color pale yellowish green, dorsum and tegmina dull yellowish brown. Lateral 

 stripes on the sides of the prozone, more or less of the bases of the abdominal segments and 

 genicular lobes of the hind femora, apex of hind tibiae, tibial spines and tarsal claws, black. 

 Hind tibiae colored like the body. 



Length of body; $, 10-12; ?, 16-17; hind femora : J, 7.5-S ; $.9.5-11; antenna: $, 

 $,8-8.5; tegmina: c?^, 1.7 X 2 to 2 X 2.5 ; $,3 X 3-5 103.3 X 4 mm. 



Three males, one female, Waycross, Ware Co., Ga., Aug. 11: fourteen males, one 

 female, Denmark, Bamberg Co., S. C, Aug. 15. 



Eotettix palustris sp. nov. 



Intermediate in size and appearance between signatiis unA pusilltis. Facial costa widest 

 opposite base of antennae, equalling interspace between eyes, with convex sides convergent 

 above and below, subparallel in lowest portion. Tegmina broadly oval with rounded apex, 

 shorter than pronotum. Abdomen of male less upturned at tip than \r\ pusillus; furcula 

 well-developed, flattened or digitate ; supra-anal plate triangular, its breadth nearly or quite 

 equalling its length, the apex rounded, acute. Cerci conical, slender, tapering evenlj-, about 

 three times as long as their basal width. 



Color light yellowish green, brown above and on teL'niina, with fuscous post-ocular 

 stripes from eyes to tegmina. Hind tibiae red with black spines. This species and sig->/a-. 



