Hemiptera Heteroptera of Guam Author Usinger, Robert L. text 1946 1946-12-20 Bernice P. Bishop Museum, Bulletin 189 Honolulu, Hawaii Insects of Guam II 11 103 book chapter 10.5281/zenodo.5173934 e7ce9dca-1d2b-4aad-8471-7ea2c177da53 5173934 FB89F15B-608D-4E39-951E-4568FB4531A0 12. Plinachtus acicularis (Fabricius) . Alydus acicularis Fabricius , Syst. Rhyng. , 251 , 1803 . Two specimens were kindly forwarded from the U. S. National Museum by H. G. Barber who made the identification. Collected on Guam , Oct. 17, 1938 , R. G. Oakley (1247) on Gymnosporia thompsonii . These specimens agree perfectly with Distant's description and figures of specimens from India . The genus has not been recorded from Oceania except for P. bellus Stal in Fiji . Species are before me from Mangareva and from the Austral and Society Islands. These lack the acute spines on the humeri as does bellus , in contrast to the acutely spined Oriental acicularis of Guam .