SUBFAMILY III. LOCUSTINJO. 383 



Tegmina elongate-ovate, one-third longer than broad, the tips subtruncate. 

 Extremity of male abdomen strongly upcurved. Supra-anal plate broadly 

 triangular, the apex obtuse; sides less elevated than in puer. the median 

 basal sulcus much wider, more shallow and extending to apical third of 

 the plate. Furcula very short, oblong, flattened, widely separated pro- 

 cesses lying on the base of the median ridges; last dorsal segment almost 

 separated at middle. Cerci rather stout, laminate, gradually narrowed to 

 middle, the apical third slightly widened, feebly grooved without, the tips 

 rounded and slightly incurved (Fig. 132, d.) Subgenital plate very small, 

 feebly narrowed to apex, the apical margin but slightly elevated. Length 

 of body, $, 13.617.5, 9, 1723; of antennae, $, 7.58, 9, 88.5; of 

 pronotum, $, 3.54.5, 9, 4.2 4. S; of tegmina, $, 33.8, 9, 3.34; of hind 

 femora, $ , 911, 9 , 11 13 mm. 



LaGrange and Gainesville, Flu., Sept. 12 (Dai-is). Other 

 specimens at hand from the U. S. National Museum and Morse 

 collections are from Cedar Keys, Ocala and Live Oak, August 

 10 15. The known range of rotunrtijtcnnls is limited, extending, 

 according to K. & H. (1916, 222), only from Brunswick to Thomas- 

 ville in southern Georgia and southward throughout northern 

 and central Florida to Lakeland. It is the prevailing short-winged 

 Hclanoplus in northern Florida, occurring among the saw palniet- 

 toes and underbrush of open pine woods and "varying much in 

 general color according to environment, from mottled grayish on 

 sand to dark red-brown among dead leaves and other plant debris." 

 The Mcbinoplus inops of Scudder (1897, 329) and K, & H. (1907, 

 295) is a synonym. 



173. MELANOPLTJS PYGMJEUS Davis, 1915, 96. Fygmy Locust. 



"Related to M. rotundipennis but differing in the distinctly broader 

 and more truncate prosternal spine in both sexes, which is broader than 

 long, and in the distinctive male genitalia. Size a little smaller and form 

 more slender than in a.verage rotiindipennis. Color resembling the less 

 heavily marked examples of that species; the hind femora with three fus- 

 cous blotches above, pale yellow beneath, male, weakly orange, female ; 

 hind tibia? very pale blue with a slight purplish suffusion. Lateral lobes 

 of pronotum almost immaculate in female. Dorsum of pronotum with 

 lateral carinas more divergent toward posterior margin than in rotundipen- 

 nis. Eyes less protuberant; frontal costa distinctly sulcate throughout. 

 Tegmina much the same, separated by a width of 1.2 mm. Supra-anal 

 plate more elongate, distinctly longer than broad, the median ridge con- 

 fined to basal third. Cerci as described in key (Fig. 132, a.) Length of 

 body, $, 14, $,23; of pronotum, $, 3.3, $, 4.8; of tegmina, $, 2.8, 9,4; 

 of hind femora, $ , 9.7, 9 , 12.7 mm. Greatest width of tegmina, $ , 1.8, 

 9, 2.6; of hind femora, $, 2.3, 9, 3.2 mm." (Davis.) 



The above, taken in connection with the key, presents the 

 salient points of the original description of this species. Tt was 

 described from a single pair taken by Mutchler and Watson at 



