MORGAN HEBARD 291 



width, triangular, with apex acute, but not at all slenderly 

 produced. 61 



In general appearance the present insect is about intermediate 

 between M. scudderi (Uhler) and Eotettix quercicola Hebard. It 

 is evident that this species represents the type in the genus 

 Melanoplus showing nearest approach to that section of the genus 

 Eotettix which includes quercicola and davisi Hebard. The two 

 latter species have a distinctive facies; in being more polished 

 with coloration more brilliant, particularly in life, in showing 

 distinctive features in color pattern and in having larger heads 

 with antennae much more elongate. 



The resemblance of the present species lies largely in the gen- 

 eral, though not detailed, similarity of coloration, coupled with a 

 very slightly greater smoothness than found in the allied species 

 of Melanoplus. 



Type. — cf ; Bainbridge, Decatur County, Georgia. Septem- 

 ber 5 and 6, 1915. (Rehn and Hebard.) [Hebard Collection, 

 Type no. 508.] 



Size slightly larger, form slightly more elongate than in scudderi, much as in 

 lowland series (Yemassee, South Carolina) of carnegiei. Fastigium of vertex 

 and frontal costa similar, but slightly more sulcate; sulcus weak but distinct 

 throughout, well defined between the lateral ocelli. Antennae normal, about 

 one and three-quarters times as long as pronotum, as in carnegiei. Eye slightly 

 longer than cheek, about one and three-quarters times as long as infra-ocular 

 sulcus. Pronotum much as in scudderi; the percurrent median carina, cut 

 only by principal sulcus, very slightly heavier, about as well developed as in 

 Eotettix davisi and quercicola; caudal margin of pronotum obtuse-angulate 

 produced (at about 120°) with angulation broadly rounded, more produced 

 than in Eotettix davisi or quercicola. Tegmina broad oval, overlapping. 62 

 Distal portion of abdomen scarcely enlarged. Furcula as in carnegiei, repre- 

 sented by two minute projections, the areas from which they spring enlarged 

 and separated by a subrectangulate emargination. Supra-anal plate as in 

 carnegiei; shield-shaped, with a decided medio-longitudinal sulcus in proximal 

 half, lateral portions broadly concave, distal portion nearly deplanate. Cercus 

 slightly over one and one-half times as long as basal width, margins rather 



61 Some slight individual variation is shown by the series of that species at 

 hand. One male, of two from Atlanta, Georgia, has the cercus approaching 

 the condition found in acidocercus much more closely than in any other speci- 

 mens. In this individual the cercus is nearly one and one-half times as long 

 as its basal width, but much broader distad than in any specimen of acidocer- 

 cus at hand. The other Atlanta male of carnegiei has perfectly typical cerci. 



62 Varying to attingent in a very few males of the series. 



TRANS. AM. ENT. SOC, XLV. 



