178 FAMILY V. TETRIGIDJE. THE GROUSE LOCUSTS. 



V. APOTETTIX Hancock, 1902, 99. (Gr., "separate" -f Tettix.) 



Rather slender, medium sized species having the head covered 

 by the prouotum to the eyes; antennae stouter than in Paratcttix; 

 eyes smaller, globose; vertex as described in generic key, its "front 

 border formed of little concave cariute, lying each side of the mid- 

 cariua, and which are elevated and flexed backwards at the inner 

 side of anterior half of the eyes," its dorsal surface appreciably 

 wider behind ; frontal costa rather widely and shallowly silicate, 

 strongly advanced in front of eyes and convex between the bases 

 of antennae; pronotum as in Paratcttix, its median carina more 

 distinct than in P. cucullatus. Other characters as given in key. 

 Six species are recognized from the American Continent by Han- 

 cock (1906, 64), one of which occurs in our territory. 



75. APOTETTIX RUGOSUS (Scudder), 1862,476. Rough-backed Grouse Locust. 

 Rather slender, the pronotum strongly tapering behind. Fuscous, 

 dark brown or dark gray, usually nearly uniform, rarely with a broad 

 white blotch across the shoulders of pronotum; hind femora in part paler. 

 Vertex as wide as or slightly wider than one of the eyes in male, one-third 

 to one-half wider in female, disc deeply concave each side of median ca- 

 rina. Pronotum with front margin truncate, hind portion strongly at- 

 tenuate, dorsal surface with numerous rounded and oblong tubercles; 

 median carina interrupted or wanting between the shoulders, rather 

 strongly elevated and slightly curved in front of them; humeral angles 

 obtuse; lateral lobes with hind margin strongly bisinuate; tegminal sinus 

 wide, shallow; lower one narrow, much deeper, the lobe between them 

 rounded. Tegmina elongate-oval, their tips obliquely rounded; wings 

 passing the apex of pronotum. Middle femora undulate beneath; hind 

 ones rather slender, their outer surface strongly rugose. Sub-anal plate 

 of male acutely notched at tip. Length of body, $, 8 10, 9, 10 12; of 

 pronotum, $, 1113.3, 9, 1315.6; of hind femora, $, 55.5, 9, 

 66.5 mm. 



Ormond, Sarasota, LaBelle, Moore Haven and Dnnedin, Fla., 

 Dec. 1 April 10 OF. $. B.} ; common at Dunedin along the mucky 

 margins of recently drained ponds, where they are usually taken 

 by sweeping. When flushed they make one or two strong flights, 

 sometimes for a distance of 40 feet, then squat close to the surface, 

 and if carefully marked down can be readily picked up with the 

 fingers. Two of the Dunedin females have a broad white saddle- 

 shaped spot on pronotum and a pale stripe along the middle of 

 hind femora. At Ormond it was frequent in damp places along 

 roadsides and about the borders of low, cultivated grounds. Re- 

 corded also by Scudder from Fort Reed and by Davis and R. & H. 

 from numerous localities from Jacksonville and Cedar Keys south 



