CHAMBERLIN: THE CHILOPODA OF BRAZIL. 185 
CUPIPES AMAZONAE, Sp. nov. 
Dorsum olive or olive-brown; most of the plates of the middle and 
anterior regions of body with a blackish spot or short stripe at each 
lateral margin; in the plates of the median region also a dark spot on 
eaudal border at caudal end of each sulcus or the two spots may be 
united as a transverse band. Head darker, more brownish and dusky. 
Antennae bright green. Prosternum and prehensorial feet clear 
brown, the latter rufous laterally and especially distally proximad of 
the black claw proper. 
Head clearly longer than wide (46:41). Sides a little convex just 
behind the eyes and then substraight and a little converging to the 
caudal corners. Finely and uniformly subdensely punctate. The two. 
diverging longitudinal sulci reaching or very nearly reaching the 
anterior margin, each terminating in a transverse sulcus slightly 
removed from the edge of antennal socket with which it runs parallel. 
Antennae composed of seventeen articles of which the first seven 
are glabrous or practically so and in this respect sharply separated 
from the more distal group. 
Prosternum with two sharply defined longitudinal sulci converging 
cephalad and uniting at an angle at anterior end; these sulci crossed 
‘by a transverse sulcus which is branched and has anastamoses as 
shown in Plate 3, fig. 5. Dental plate without true teeth, but bearing 
an elongate ectal process with on mesal side at base a low, dark, denti- 
form elevation (Plate 3, fig. 5); on one side the plate is malformed 
as shown in the figure, this probably being due to injury with imper- 
fect subsequent regeneration. 
Margination of the dorsal plates indicated from about the seventh 
caudad but not very distinctly until the tenth. Plates with an obscure 
- low median keel defined by two indistinct longitudinal furrows; also 
a vague furrow laterad of each median sulcus may be indicated. Last 
dorsal plate with a sharply impressed median longitudinal sulcus. 
Second to twentieth ventral plates with the usual two longitudinal 
sulci crossing the plate. A rather vague transverse furrow may be 
traced at the level of the legs; while on some plates indications of a 
very weak median longitudinal furrow may be detected. Last ven- 
tral plate clearly wider at its anterior end than long (2.6:2). Sides 
strongly converging caudad; plate truncate caudad, the corners a 
little rounded. Without a median sulcus or furrow. (Plate 2, fig. 9). 
Coxopleurae with a short but distinct process at mesocaudal corner, 
