Iphrobrium guamensis, 1935

Gressitt, J. Linsley, 1942, New Longicorn Beetles From Guam (Cerambycidae), Insects of Guam I, Honolulu, Hawaii: Bernice P. Bishop Museum, pp. 61-64 : 61

1. Iphrobrium guamensis , new species.

Female: slender, elongate, dorso-ventrally compressed. Body chestnut brown, darker or paler in part; head reddish brown, almost pitchy on neck; eyes pitchy black; palpi testaceous; antennae brownish testaceous, darker brown on scape and apices of third to fifth segments; prothorax reddish castaneous, shiny, a pitchy black stripe along each side of upper surface from apex to base, lower parts of sides reddish testaceous; scutellum reddish; elytra brownish testaceous with external margins, apices and two narrow transverse bands pitchy gray brown; ventral surfaces reddish testaceous; meso- and metasterna duller brown; legs brownish testaceous with swollen portions of posterior femora pitchy brown. Dorsal surfaces clothed with thin golden brown pubescence; metasternum with dull brown pubescence, and second abdominal sternite densely fringed on apical margin with golden.

Head longer· than broad, almost as long as prothorax, finely granulose, smooth ·on neck. Antennae slightly longer than body, moderately slender; scape subarcuate, longer than third segment; fourth slightly shorter than third; fifth nearly as long as third and fourth combined, subequal to sixth and seventh, respectively. Prothorax nearly twice as long as broad, briefly collared at each end, a little broader at apex than at base; surfaces smooth, finely granulose. Elytra slightly broadened behind middle, conjointly rounded posteriorly; surfaces finely granulose-punctate. Legs slender; posterior femora compressed and swollen in apical two-thirds. Length, 8.5 mm.; breadth, 1.8 mm.

Machanao, June 5, Usinger , holotype female.

Differs from I. dilatipenne Gressitt of the Ryukyu (Loochoo) Islands. in being darker and more shiny, more elongate, with the prothorax more cylindrical and the elytra less expanded posteriorly. Type in collection of B..f P. Bishop Museum, Honolulu.