SUBFAMILY I. PHANEROPTERIN^E. 



461 



sides rounded into the lateral lobes, metazona triangular, pro- 

 longed backward and upward; humeral sinus feeble; lateral lobes 

 sloping, longer than wide, their hind margins very oblique, so 

 broadly rounded into the sinuous lower margin that the angle is 

 scarcely evident ; tegmina very long, narrow, basal fifth of costal 

 border widened, tips rounded ; wings 8 9 mm. longer than teg- 

 miua; legs very long, extremely slender, hind tibiae longer than 

 the femora, lower lobe of knees ending in a pointed spine. 



The genus is confined to the United States and Mexico, one 

 of the 11 known nominal species occurring in Georgia and Flor- 

 ida, the others from Texas and Nebraska to California. 



210. ARETH.EA PHALANGIUM (Scuclder), 1877, 40. 



Size large for the genus; form elongate, compressed. General color 

 green. Head with a narrow pinkish-purple stripe behind each eye these 

 extending back, narrowing and converging on prozona; hind margins of 

 metazona and lateral lobes white bordered within by pinkish. Hind fe- 

 mora tinged with pinkish-purple. Tegmina one-third to one-half longer 

 than body, broader at apical fourth than at basal third, the stridulating 

 field of male shorter than the disk of pronotum. Male with supra-anal 

 plate very short, its apex broadly rounded; cerci short, stout, apically in- 

 curved, their tips acute; subgenital plate long, rigid, truncate at tip; 

 styles very short, placed on the outer angles of the plate. Female with 

 ovipositor very short, broad, upturned, strongly compressed, bluntly 

 pointed, its sides rugose and margins finely crenate. Other structural 

 characters as above given. Length of body, $ , 16 22, 9, 19 24; of an- 

 tennae, $, 6568, ?, 61; of pronotum, $, 4.8 5.3, 9, 5 5.8; of tegmina, 

 $, 2832, 9, 3136; of wings, $, 36.543, 9, 36.540; of hind femora 

 $, 3337, 9, 3640; of hind tibiae, $, 41, 9, 42; of ovipositor, 55.8 

 mm. (Fig. 151.) 



Fig. 151. Lateral view of female of Arcthcca fhalanginm. X 2. (After R. & H.j 



This peculiar long-legged, slender-bodied species was described 

 from Georgia, is known only fr<*n that State and Florida, and 

 seems to be very scarce wherever found. In Florida it has been 

 recorded only from Hastings, Gainesville, Sanford, Miami, Home- 

 stead, Pine Island and Fl\ Myers. Nymphs were taken at Miami 

 and Ft. Myers in March and April, and adults at the other sta- 

 tions between May 18 and Aug. 10. Hebard (1916) says that it is 



