1912. 



NATURAL SCIENCES OF PHILADELPHIA. 



215 



The present species is distinguished from Cycloptilum squamosum 

 by its smaller size, relatively more regularly convex dorsal surface 

 of the pronotum in the male, which is less expanded caudad and is 

 much shorter. In the female the pronotum is very small and narrows 

 somewhat more cephalad. Proprtionately, the limbs are shorter 

 and the caudal femora more flea-like. Differences in coloration are 

 also apparent and are given in the color description below. 



Type: cT ; Miami, Dade County, Florida, on wire-grass in low 

 undergrowth of pine woods, February 6, 1904. (Hebard.) [Hebard 

 Collection.] 



Description of Type. — Size very small for the group. Head with 

 interantennal protuberance much as in squa- 

 mosus, but the perpendicular division is some- 

 what more apparent, very narrow but distinct. 

 Maxillary palpi with penultimate joint not 

 more than two-thirds as long as terminal 

 joint, the latter gently expanding distad and 

 gently obliquely truncate. Eyes reniform in 

 outline, subvertical. Pronotum with cephalic 

 width of dorsal surface approaching caudal width 

 of the same more nearly than in squamosum, 

 considerably produced caudad, its caudal margin 

 forming nearly a semicircle, the whole of the 

 dorsum well rounded. Tegmina with dorsal 

 field slightly broader than pronotum at its widest 

 point, tympanum perfectly developed, caudal 

 margin of tegmina subequal in arcuation to the 

 caudal margin of the pronotum. Cerci missing in 

 type (in other males of this species the cerci are more than one-half 

 as long as the abdomen). Cephalic tibia? with cephalic face bearing a 

 minute but distinct tympanum. Caudal femora more dilated than 

 in squamosum. Caudal tibiae with three pair of well-developed distal 

 spurs, the dorso-internal very slightly shorter than the ventro- 

 internal spur; the medio-internal spur is the longest and has its 

 length contained two and one-quarter times in the metatarsus. 

 Caudal metatarsus fairly long, straight, rather broad, sulcate dorsad, 

 both dorsal margins armed with short, well separated serrations, 

 much as in C. squamosum, the distal extremity armed on both sides 

 with a spur which extends to nearly the end of the first third of the 

 terminal tarsal joint. 



Allotypic 9 : Key West, Monroe County, Florida, on underside 



Fig. 20. — Cydopti- 

 lum zebra. Dor- 

 sal view of tvpe. 

 (X4.) 



