112 



INSECTS OF SAMOA. 



AGKYPNINAE. 

 1. Lacon modestus (Boisduval). 



Voy. Astrolabe, Col, p. 108, 1835 (Agrypnus) ; Fauna Oceanie, p. 108, 1835. 



Four specimens : Apia, Upolu, i.1925, and ix.1924 ; Malololelei, Upolu, 

 iv.1924 ; " Samoa," 10.vi.1917 (Swale). 

 Cosmotropical. 



Hyslop * has shown that the Adelocera of authors should be Lacon, and 

 vice versa. 



as head and thorax. 



HEMIRRHIPINAE. 



2. Alaus samoensis, sp. n. (Text-fig. 1). 



19-5 mm. long ; 6 mm. wide across elytra ; elytra less than twice as long 

 Light castaneous, with darker indefinite longitudinal 

 suffusion on the prothorax. Uniformly covered with 

 brown-cinereous squamules. Head deeply, triangularly 

 impressed with the frontal margin recurved. Antennae 

 reddish-brown. Prothorax longer than wide, not 

 medianly carinate ; sides slightly and evenly arcuate ; 

 gently convex with vague impression on either side 

 just within the sub truncate anterior angles ; declivous 

 at base. Posterior angles divergent, strongly carinate. 

 Scutellum declivous, elongate pentagonal. Elytra 

 widened to about their middle, thence narrowed to the 

 apex, which is emarginate, the angles being even and 

 obtuse. Third interval with a longitudinal carina 

 extending anteriorly to about the middle of the 

 scutellum, slightly divergent anteriorly. Striae finely 

 but plainly punctate, the intervals flat. Body beneath, 

 concolorous with upper surface. Sides of mesosternal 

 cavity not raised. Holotype, female (?), Apia, Upolu, 23.vii.1924. Described 

 from a single specimen. 



Text- fig. 1. — Alaus 

 samoensis, sp. n. 



* J. A. Hyslop, " Genotypes of the Elaterid Beetles of the World : " Proc. U.S. Nat. Mus., 

 vol. 58, pp. 621-680, 1921. 



