Acalles samoanus Marshall, 1931

Zimmerman, Elwood C., 1942, Curculionidae of Guam, Insects of Guam I, Honolulu, Hawaii: Bernice P. Bishop Museum, pp. 73-146 : 110

22. Acalles samoanus Marshall , Insects of Samoa 4(5):280-281, 1931 (pl. 3, C).

This is a widespread species known from Fiji, Tonga, and Samoa and eastward through the Austral, Society, Mangareva, and Marquesas Islands.

As is usual for the species, it varies greatly in size, shape, sculpture and development of the dorsal tubercles in the series from Guam before me. However, there is more extreme variation in the Guam material than I have seen in specimens from other islands, and two extreme, isolated individuals might almost be taken for distinct species. Clean specimens can perhaps be most easily recognized by the conspicuous patch of white squamae at either side of thl base of the pronotum in front of the fifth elytral intervals in combination with their tuberculate dorsum and other characters. For a complete description, discussion and illustration, see my " Cryptorrhynchinae of the Austral Islands" (B. P. Bishop Mus., 0cc. Papers 12(17): 5-7, fig. 2, b, 1936).

The following specimens from Guam are before me: two at Machanao, June 5, 1936, Usinger; one, Fadian, Sept. 18, Swezey; and two taken by Fullaway without specific locality .