254 Mr. Martin Jacoby’s List of the Phytophagous 
Fam. CRYPTOCEPHALIDA. 
CryprocePHatus, Geoffr. 
Cryptocephalus tricostatus. 
Cryptocephalus tricostatus, Jac., Biol. Centr.-Am., Col., 
Vij ensuppl., p- 16. 
Hab. St. Vincent—South end, Leeward and Windward 
sides, and Kingstown, up to 3,000 feet ; Grenada— Mount 
Gay Estate and St. George’s (Leeward side) ; Grenadines 
—Mustique I., Becquia I. 
I cannot separate the numerous specimens from the 
above-mentioned localities from those described by me 
from Chiriqui under the above name, but the size and 
coloration of the insect is extremely variable. In well- 
marked specimens the thorax is piceous with a slight 
metallic gloss, the margins and two oblique spots at the 
base. being flavous; the elytra are of the latter colour, 
with the suture broadly, and a more or less distinct 
transverse band near the apex, greenish-piceous, the 
punctures being of the same colour. Between these and 
nearly unicolorous flavous specimens there are numerous: 
intermediate forms. The principal characters of distinc- 
tion are:—The interruption below the shoulders of the 
fifth and sixth rows of punctures on the elytra by a trans- 
verse raised space (‘‘Querfeld” of Suffrian), and the broad, 
convex interspaces at the sides (from which I named the 
insect tricostatus), as well as the smooth and raised apical: 
portion. The species varies from } to | line in length. 
It belongs, no doubt, to the group in which Suffrian 
placed his O. stercorator, from the W. Indies, to which it 
seems very closely allied; but neither the colour nor the 
description of the elytral sculpture agrees with the speci- 
mens before me. OC. signatellus, Suffr., is also another 
allied form. 
PacHYBRACHYS, Suffr. 
Pachybrachys scabripennis, sp. n. 
Flavous, closely covered with brown punctures; the thorax 
with some more or less distinct dark bands ; elytra closely punc- 
tured in irregular rows, with raised interstices, with a small, 
smooth, raised, pale spot near the suture ; femora with a brown 
spot. 
Length, 2 lines. 
