SUBFAMILY I. TRYXALIX.M. 213 



obtusely angled, frontal costa wide, narrowing above the antennae, 

 deeply sulcate, male, shallowly, female; antennae flattened, of 

 nearly equal size throughout, shorter than head and thorax in 

 both sexes; disk of pronotum with hind margin truncate, lateral 

 carinae strongly incurved at middle, none of the carinae cut by 

 the transverse sulci which are very faint; lateral lobes about as 

 high as long, front and hind margins feebly oblique, lower one 

 nearly straight; tegmiua and wings rudimentary; hind femora 

 rather stout, scarcely surpassing the tip of abdomen, female, 

 strongly so, male ; hind tibiae with about 12 spines on outer mar- 

 gin, apical inner spur one-half longer than the others ; subgenital 

 plate of male subcylindrical, very obtuse; ovipositor distinctly 

 exserted. 



McNeill founded the genus Pedeticum for our only species. 

 Scudder (1898a, 239) claimed that this name was preoccupied by 

 Pedeticus Laporte in Hemiptera, and proposed in its stead Mac- 

 tieiHia. In this he was controverted by Caudell (1915, 1916a), but 

 upheld by Hebard (1916, 17; 1916d). As these two eminent au- 

 thorities cannot agree I have retained the older name until, as 

 Hebard suggests, the case is settled by a "final decision of the 

 International Commission." 



90. PEDETICUM OBSCURUM (Scudder), 1877a, 88. Obscure Locust. 



Short, robust; the male much the smaller and more slender. Dark 

 brownish-yellow or grayish-brown, usually nearly uniform, male; when 

 supplementary carinae are present on pronotum, both sexes with a wide 

 median dorsal white, yellowish or buff stripe extending from tip of vertex 

 nearly or wholly to end of abdomen, this bordered each side by one of 

 blackish-brown; female rarely with green lateral markings on pronotum 

 and tegmina; apical half of antennae fuscous. Occiput with supplemen- 

 tary carinae in both sexes connected with the median carina by numerous 

 small transverse carinae; pronotum of male rarely, of female usually, with 

 supplementary carinae and then with pale dorsal median stripe as above 

 noted. Tegmina of female small, elongate-oval pads about one-third the 

 length of abdomen and well separated above; of male sublanceolate, feebly 

 overlapping and about three-fourths the length of abdomen. Wings re- 

 presented by small narrow pads. Length of body, $, 13.5 15, 9, 21 24; 

 of antennae, $ , 1, 9,6; of pronotum, $, 3.54, 5, 4.55; of tegmina, $, 

 6.5, 9,6; of hind femora, $ 9.310, 9, 1213 mm. 



Ormond, Sanford, Miami, Sarasota and Dunedin, Fla. ; Oct. 

 2.~ April 10 (W. Sf. B.). Roth adults and nymphs are frequent 

 about Dunedin throughout the winter on and among the clumps 

 of wire-grass and other undergrowth in open pine and oak woods. 

 They usually occur in small colonies which are limited to an area 



