378 FAMILY VI. ACRIDID.E. THE LOCUSTS. 



long as wide, midcarina distinct, percurrent, hind margin slightly convex, 

 emarginate. Tegmina broadly ovate, about three-fourths as long as pro- 

 notuni. Male abdomen subclavate, considerably upturned. Subgenital 

 plate with sides much expanded basally, the ventral face very short, con- 

 vex, terminating in a very short blunt subapical fuscous tubercle. Supra- 

 anal plate shield-shaped, with convex sides abruptly narrowed to terminate 

 in an acute point with straight sides. Furcula as described in key. Cerci 

 slender, three times as long as basal width, tapering in basal third to 

 about half the basal width, equal in middle fourth, expanded slightly dis- 

 tally into a laminate obliquely excised tip, the upper angle rounded, the 

 lower acutely pointed, the whole organ gently incurved, the tip slightly 

 decurved (Fig. 129, 6.) Length of body, $, 18.519, $,26; of antennae, 

 $, 10.5, $,8; of tegmina, $, 3.5, 4.3, $, 4.5; of hind femora, $, 10.5, 9, 

 12.5 mm. 



Great Falls and Round Hill, A'a. (Davis). Morse's types were 

 taken in highland forest on the summit of Sharptop Mountain, 

 near Jasper, Ga., July 20. It ranges from Stateu Island, N. Y., 

 southern Pennsylvania and Stafford's Forge, N. J., southwest to 

 Georgia, occurring among the undergrowth of deciduous forest 

 and thickets on hillsides and mountain slopes. 



168a. MELANOPLUS TRIBULUS TRIBTJLOIDES Morse, 1906, 121. 



"Similar to M. tribulus but with the digits of the furcula much wider 

 and longer, flattened from enlarged bases, in length equalling or exceeding 

 the middle breadth of the cerci; the cerci narrower in the middle. "(Morse.) 



The above is the short original description based on two males, 

 three females, taken at a height of of 2,0002,400 feet on Cheawha 

 Mountain, Alabama, and one male, two females, at 1,000 feet near 

 the base of the mountain. No other records can be found. A com- 

 parison of the types of the two forms tribulus and tribuloides 

 show that they differ only in the form and length of the furcula 

 as shown in key. In tribulus they lie outside the median basal 

 ridges, in tribuloides on the ridges. Since the furcula of M. r/rac- 

 His and other short-winged Mclanophis are known to vary much 

 in size and shape, tribitloklrs is considered as only a variety of 

 tribulus. 



169. MELAXOPLUS DEVIUS Morse, 1904a, 12. 



Very similar to M. tribulus, the males almost inseparable, but having 

 the prosternal spine stouter and more blunt; furcula longer, more tapering 

 and less distant; cerci with apical half black or fuscous, "equal or a little 

 expanded apically, laminate, transversely excised at apex, the upper angle 

 more rounded than the lower, the dorsal margin sinuous, the ventral one 

 concave." (Morse.) Females more robust than in tribulus with more 

 widely infuscated lateral lobe of pronotum, the tegmina apically narrower 

 and more acutely rounded (very broadly so in tribulus); hind margin of 

 metazona scarcely emarginate at middle, valves of ovipositor shorter and 



