292 Mr. George Charles Champion on the Serricorn 
basal joint is usually enormously dilated on the inner side 
in the males). The two known species of Prionoscirtes 
are both from the Pacific slope of Guatemala, and both 
unique, like the present insect. 
Scirtes, Lig. 
Scirtes pilatet. 
Scyrtes pilatei, Guér., Rev. et Mag. Zool., 1861, p. 545. 
Scirtes pilatei, Champ., Biol. Centr.-Am., Col., ut, 1, 
p. old. 
Hab. Grenada—Mount Gay Estate (Leeward side). 
One specimen. A common and widely distributed 
insect in Central America, ranging from Tabasco to 
Panama. 
Scirtes angustatus. 
Scirtes anqustatus, Champ., Biol. Centr.-Am., Col., 111., 
t pp. Oll6, Gol. 
Hab, Grenada—St. George’s (Leeward side). 
Two males and one female. In the original description 
1 accidentally omitted to notice the peculiar sexual 
character of the female, suggestive of that of some of the 
American species of Cyphon. In this sex the elytra 
have each a large rugulose depression before the apex, of 
which there is no trace in the male, the latter also differ- 
ing from the female in having the fifth ventral segment 
emarginate at the apex. 
Scirtes insularis, sp. n. 
d. Oval, depressed, shining, finely pubescent, testaceous, the 
eyes black. Head, prothorax, and scutellum rather sparsely, 
minutely punctate, the elytra thickly, finely punctate ; head very 
broad, the eyes large and rather prominent; antenne long, 
moderately slender, joint 3 very small, half the length of 2, 4-11 
elongate. Fifth ventral segment feebly emarginate at the apex. 
Length 23-3 millim. 
Hab. St. Vincent—Leeward and Windward sides. 
Four examples. Amongst the Central-American 
species, this Scirtes most nearly resembles S. puncticollis, 
