1 1 8 
Psyche 
[June 
what sinuate inner margin of the fore tibiae and blunt fore spurs 
(fig. 2), while the hind femora are widened and the hind tibiae 
slightly more curved (fig. 3). 
Type.- Sanchez, Dominican Republic, July 1938, P. J. Darlington, 
MCZ. 
This species is most closely related to the Cuban C. histeroides 
(Harold) with which it shares the number of clypeal teeth, shape 
of the fore tibiae, widened male fore spur and pronotum, and smooth- 
ness of dorsal surfaces. It differs in not having the middle teeth of 
the clypeus very slender as in that species, in having the inner mid- 
coxal margin curving inward anteriorly, in size, the Cuban species 
being somewhat larger, and above all in the shape of the aedeagus, 
which is entirely different (compare fig. 4 here with fig. 75 in Mat- 
thews, 1966:68). The aedeagus is quite similar to that of the Cuban 
C. pijirigua Zayas and Matthews (Matthews^ 1966:68, fig. 73), 
which is entirely different externally, while the sexual dimorphism 
in the fore and hind legs is a feature shared only with Puerto Rican 
species. 
The 30 specimens which form the basis for this description were 
determined as histeroides Harold by F. S. Pereira. However, in their 
description under this name, Vulcano and Pereira (1966:147-151) 
do not mention or cite these Hispaniolan specimens and give the dis- 
tribution as Puerto Rico only, although on their map (op. cit. : 1 1 6 ) 
they indicate it to occur on Hispaniola as well. Not mentioned or 
indicated is the fact that Cuba is the type locality of the name. 
Apparently, their detailed description of “histeroides” is based on 
specimens of the Puerto Rican C. taino Matthews only. The type of 
histeroides in Paris has been examined by the author, as previously 
reported (Zayas and Matthews, 1966). 
The author is pleased to name this species after Dr. P. J. Darling- 
ton, Jr., its collector. 
Paratypes.- Dominican republic: Sanchez [Province of Sa- 
mana, on the northeast coast], July 1938, P. J. Darlington, 
27 specimens (MCZ); Mt. Quita-Espuela [Province of Duarte], 
Explanation of Plate 1 
Figs. 1-4, Canthochilum darlingtoni n. sp. Fig. 1, outline of head in dorsal 
view; fig. 2, right fore tibia and tarsus in dorsal view; fig. 3, left hind 
femur, tibia, and tarsus in ventral view; fig. 4, aedeagus from side. Figs. 
5-7, Canthochilum ciboney n. sp. Fig. 5, outline of head in dorsal view; 
fig. 6, right front tibia in dorsal view; fig. 7, aedeagus from side, membranes 
stippled. Fig. 8, unnamed Haitian species of Canthochilum, aedeagus from 
side. 
