326 REPORT OF STATE GEOLOGIST. 



74. Melaxoplus differextialis (Uhler). The Lubberly Locust. 



ioloptenm dlfferendnlk UhL , MS. , 1863 ; Thorn., 206, V, 1873, 166; Id., 

 2 11, 1880, 91, 96, 127, Fig. 24; Glov., 62, 1872, Plate VIII, 

 Fig. 12; Palte IX, Fig. 4; Plate XI, Fig. 6; Riley, 119, 1877, 

 89, 194, 198, Fig. 34; Id,, 2 1 4, I, 1878, 220, 223, 225, 298, Figs. 

 32, 110. Plate IV, Fig. 1; Id., 122, II, 1884, 194, Fig. 271; Id., 

 12 7, XXV, 1891, 30, Fig. 8. 



Acridinvi diprfntialr Tliom., 202, V, 1865, 450. 



Melanoplm diffcrcnflalix Bruu., 22,1, 1885, 139; Id., 2 3, 1888, 88, Fig. 

 4; Id., 2 6, XXVII, 1892, 32; Id., 28, XXVm, 1893, 15. Fig. 

 5; Id., 30, 1893, 461, Fig. 103; Id., 3 1, 1894, 163, 204, Fig. 67; 

 Id., 3 5, 1899, 133, Fig. 76; Id., 36, 1899, 247, 270, Fig. 53; 

 Comst., 4 1, 1888, 108, Fig. 100; Bl., 4, XXm, 1891, 99; Id., 

 15, XXX, 1898, 62; Id., 16, 1899, 238, Fig. 64; Scudd., 179, 

 XXXVI, 1897, 30, 35; Id., 18 1, 1897, 138, 349, Plate XXHI, 

 Figs. 3, 4; Id., 188, 1900, 57; Lugg., 84, 1898, 204, Figs. 

 130-132. 



Size, large. Vertex gently arched, but little elevated above the 

 pronotum; the interval between the eyes three times or more as 

 broad as the first antennal joint; the front half gently sloping, broad- 

 ly but not deeply impressed. Frontal eosta broad, but narrower 

 than the interspace between the eyes, broadly and shallowly sulcate 

 at and below the oeellus. Antennae more than twice as long (male) 



Fig. 72. Melannplm (llffn-cntialis (Uhler). Male. One and one-half times natural size. 



(After Luprger.) 



or fully half as long again (female) as the pronotuin. Disk of pro- 

 notum expanding feebly on the metazona, flat or nearly so; the front 

 margin slightly convex, the hind margin obtusely and roundly angu- 

 late; the median carina distinct and sharp on the metazona, less dis- 

 tinct but visible on the front half of prozona; the metazona a little 

 shorter than the prozona and finely rugulose. Tegmina exceeding 

 the tips of hind femora in both sexes, the narrowest apical portion 

 about half as wide as the broadest basal portion. Hind femora stout 

 and rather short, slightly exceeding the abdomen in the male. Ex- 

 tremity of male abdomen but little recurved, the cerci boot-shaped, 

 the basal half oblong; the apical half expanding and feebly forked, 

 the strongly upeurved upper prong being as long and more than 



