Piscatopus griseus Sleeper, 1960
Family: Curculionidae
Piscatopus griseus image
Michael Jansen  
Piscatopus griseus, new species Female.-Elongate-oval, strongly convex; densely clothed throughout with uniform gray scales and short coarse white recumbent setae; derm black, antennae and legs reddish brown. Rostrum very short and broad (3.75 long:6.2 wide); dorsum slightly convex between antennal insertion, continuous with front when fully clothed with scales, when denuded dorsum slightly concave with an elongate, narrow, rather shallow fovea and lateral carinae which are divergent from scrobes. Antennae with funicle and club somewhat longer than scape (5.7:4); scape straight, attaining middle of eye, 1st funicular segment robust, almost as long as 2d + 3d, 2d elongate, longer than 3d, 4th and 5th equal, 6th and 7th subequal, each slightly longer than 5th and gradually widening; club oval, acuminate and sparsely clothed. Head moderately convex; derm as on rostrum, densely closely punctured, punctures at times coalescent; eyes separated by a little less than length of prothorax at middle (5.75:6.75) moderately convex, coarsely granulated, readily visible from dorsum, circular in lateral aspect; marginal groove distinct only on dorsal arc. Prothorax broader than long (9.3:6.75), sides rather evenly arcuate, apical and basal margins truncate, disc feebly convex in lateral aspect; derm very minutely, densely punctured. Scutellum broad, flattened, triangular and densely scaly. Elytra oblong, longer than broad (19:12); striae not impressed, strial punctures small, separated by more than twice their diameter, completely obscurred by the scaly vestiture; intervals broad, flattened, subequal, confusedly punctured with minute, closely placed punctures and a single row of larger setiferous punctures, the short recumbent setae in a single row on each interval. Ventral side clothed as dorsum, first abdominal segment strongly convex transversely, a little shorter than 2d + 3d + 4th, (segments 4:2.7:.8:.8:2.3). Legs clothed as body. Tarsi elongate, posterior tarsi with 1st and 2d segments equal, 3d slightly longer, 4th nearly as long as preceding three; anterior tarsi shorter, first segment almost one-half longer than 2d, 3d little longer than 2d, 4th slightly longer than 1st and 2d. Claws completely free and widely divergent. Length 4.7 mm, width 2.1 mm. Male.-Differs from the female in more slender form, the less inflated elytra, and the structure of the ventral abdominal segments; the first abdominal segments flattened laterally and a little concave at middle. Length 3.5 mm, width 1.5 mm. Type locality.-Redford, Presidio Co., Texas, other locality, Presidio, Presidio Co., Texas. The material from Presidio was found on the foliage of Larrea divaricata Cav.