82 



INSECTS OF SAMOA. 



aenea m.," I believe in Haag Ruthenberg's handwriting, and the No. 1927. 

 Both are and are undoubtedly conspecific with the cotype from Samoa, which 

 also bears the number 1927. 



21. Amarygmus (Platolenes) samoensis Haag. 



Jonrn. Mus. Godejfr., v, p. 133, pi. 7, fig. 23, 1879 ; Gebien, Tenebr. N. Guin., p. 405. 



Upolu : Apia, Malololelei, Vailima ; in almost every month of the year. 

 Savaii : Tuasivi ; Safune, lower forest, 1000-2000 ft. 

 Tutuila : Pago Pago ; Leone Road. 



Recorded or received in almost all collections from Samoa. 



Probably, as suggested by Haag, A. samoensis is no more than a race of 

 the more widely distributed Pacific species, A. hydrophiloides Fairm. In some 

 fifty specimens from Samoa now before me, the colour is generally aeneous, 

 while the elytra are frequently and the thorax is much more rarely violaceous. 

 Two examples of the same form are labelled Tonga : Vavau (Buxton and 

 Hopkins), and two more in the British Museum (probably erroneously) " Sandw. 

 Is." (Fry Coll.).* Typical A. hydrophiloides, described from specimens from 

 Wallis Is. and Tonga Tabu, are bright blue or greenish blue, and this form 

 is widely distributed from New Guinea to Fiji. Both forms have the anterior 

 and intermediate tarsi expanded in the (Platolenes Geb., Tenebr. N. Guin.), 

 and in both, in the same sex, the posterior tibiae are thickened about the middle. 



2lA. A. hydrophiloides Fairmaire. 



Rev. Zool. (2), I, p. 450, 1849. 



A specimen of the typical form was obtained at Haloga, Vavau, 4.iii.l925, 

 with one of the samoensis form, and another at Funafuti, Ellice Group, 17.ix.1924. 



22. Amarygmus tuberculiger Fairmaire. 

 (Loc. cit.) 



Upolu : Malololelei, iv., vi.1924, 3 examples ; Vailima, vi.1924, 1 example ; 

 Tafua volcano (Swale). 



Savaii : Safune, lower forest, 1000-2000 ft., 9.V.1924, 2 examples (Bryan). 



* See JJloma cavicollis (ante, p. 76). 



