MORGAX HEBARD 377 



Specimens Examined: 13; 4 males and 9 immature individuals.-^ 

 Alabama: Greenville, Butler County, VIII, 3, 1915, (Hebard), 1 d", 



paratype, 2 juv. cT, 6 juv. 9. Evergreen, Coneouh County, VIII, 4, I9I.5', 



(Hebard), 3 d^, type and paratypcs, 1 juv. 9 . 



At Greenville the species was found, particularly about vine 

 tangles, in the rather scanty undergrowth of a lofty forest composed 

 chiefly of pine and sweet-gum. At Evergreen it was found to 

 be very scarce in a heavy forest of magnolia, sweet g\nn and 

 some holly and tulip trees, where the low ground was almost 

 bare of vegetation but covered with leaf litter. 



Like querneus this species is doubtless local in distribution, 

 but at the proper season should be found in fair sized colonies 

 in the scanty undergrowth of the forests. 



Melanoplus platycercus new species (Plate XVII, figs. 2, 3 and 4.) 



This species is closely related to the variat)lc M. rileyanus 

 8cudder. In the male sex it may be readily separated by the 

 much shorter and broader cerci, in which the length approximates 

 the greatest width, as well as by the shorter subgenital plate, 

 which has the free margin almost evenly semicircular in dorsal 

 aspect. Females of platycercus average smaller and more slender, 

 but can not be separated from a few of the specimens of the 

 large series of rileyanus now before us. 



Type. — d^; Lone Pine Canyon, Sierra Nevada ^Mountains, 

 Liyo County, California. Elevation, 8000 to 8371 feet. Sep- 

 tember 5 and 8, 1919. (Rehn and Hebard). [Hel)ard Collec- 

 tion, Type no. 559.] 



Size small, as small as the smallest examples of rilrydinin before us; form 

 medium. Vertex rather narrowly sulcate, frontal costa shallowly concave 

 at and below the median ocellus, its lateral margins subcarinate,. Eye 

 slightly over twice as long as infra-ocular sulcus. Pronotum moderately 

 elongate, the disk widening very weakly caudad, medio-longitudinal carina 

 distinct on metazona, weak elsewhere, sulci distinct but delicate, caudal 

 margin of disk very weakly obtuse-angulate produced. Prosternal spine 

 blunt conical (varying in the series to heavy, transverse, with apex very 

 blimt). Tegmina considerably shorter than pronotum, ovate, rather broadly 

 rounded distad, separated by a very brief interval. Furcula represented by a 

 pair of slender, parallel, straight projections, which taper to their blunt 

 apices, in total length equalling about one-quarter that of the supra-anal 

 plate. Supra-anal plate slightly longer than wide, triangular, the lateral 



TRANS. AM. ENT. SOC, XLVI. 



