Gonocephalum incisum (Blanchard), (Blanchard)

Blair, K. G., 1942, Coleoptera Heteromera From Guam, Insects of Guam I, Honolulu, Hawaii: Bernice P. Bishop Museum, pp. 56-60 : 56

1. Gonocephalum incisum (Blanchard) .

Epilasium incisum Blanchard , Voy. Pole Sud 4: 157, pl. 10, fig. 16, 1853 ( Guam).

Ritidian Pt., April 22, Bryan, one specimen .

Gebien [Coleopt. Catalog. (22) 1910] places the species erroneously in TrichotonHope. Itis,however,closelyalliedtoLeichenuniverrucosumFairmaire and L. impictum Fairmaire both from Fiji, and with these must be removed fo Gonocephalum Solier.

The genae are wide, the eyes not divided as in Trichoton , the thorax coarsely and closely granulate, the granules on the more elevated parts sloping backwards, each with a reddish seta at tip; in an indistinct longitudinal depression on each side of the middle they are sharper and more elevated, and on the rather sharply explanate side margins much finer. The elytral striae are very ill-defined, but the alternate intervals 3, 5, and 7 are wider than the others and more elevated, especially 3 and 7 at base. The striae are sinuate and the wider intervals behind the middle interrupted by somewhat indistinct depressions. Sculpture sharply granulate but the granules smaller than those of thorax, tending to be uniseriate in the narrow intervals; a smaller granule accompanying each puncture of the striae renders these more indistinct. The elytral epipleura end about the base of the 5th ventral segment of the abdomen (continuous to apex in Trichoton ). Legs moderately stout, tips only of femora visibly exposed beyond the elytra (much too long in Blanchard's figure).·