■206 > INSECTS OF SAMOA. 



, i-^- ■ ,- ■ ' ' . . ■ . 



13. Aretas sanguinarius, var. rubroscutellatus, var. n. 



Structurally very similar to A. sanguinarius Distant, but differs at least 

 in having red on the scutellum. 



Colour. — Colour pattern differs from typical sanguinarius in having 

 the scutellum largely red ; a few specimens transversely red on basal half of 

 pronotum, although interrupted on median line ; sometimes the pale areas on 

 pronotal disc and clavus becoming dusky brown. 



Structure.- — Length 4-1 mm., width 1-7 mm. Head : width -76 mm., 

 vertex -41 mm. Rostrum, length 1-43 mm., extending to near hind margins 

 of posterior coxae. Antennae : segment I, length -65 mm., greatest thickness 

 (•15 mm.) near base and tapering to smaller at apex ; II, 2-07 mm., cylindrical, 

 slender ; III, -82 mm. ; IV, broken. Pronotum : length -47 mm., width at 

 base 1-21 mm. Arolia converge at tips, thus referring the genus to subfamily 

 Orthotylinae. 



Upolu Malololelei : 3 specimens, including type, 20.vi.l924 (Arm- 

 strong) ; 1 specimen, 2,000 ft., 20.vi.l924, 1 specimen, 2,000 ft., 25.xi.1924 

 (Buxton & Hopkins) ; Tuaefu : 1 specimen, 16.ix.l923, SHding Rock (Swezey 

 & Wilder). 



Manua Is. : — Tau : 1 specimen, 27.ix.1923 (Swezey & Wilder). 



Orthotylellus, gen. n. 



Allied to Orthotylus Fieb., as indicated by the converging arolia and form 

 of body ; distinguished from this and allied genera by the somewhat flattened, 

 subcorneal head, pubescent eyes, long rostrum, and in having two types of 

 pubescence on the dorsum. 



Arolia erect, converging apically as in Orthotylus ; head subcorneal, 

 flattened beneath, bucculae very slender, rostrum long, attaining eighth ventral 

 segment ; eyes appearing granulate, distinctly pubescent, extending well 

 around lower side of head ; first antennal segment very short, vertex broad, 

 ecarinate, but strongly margined ; pronotum twice as wide as long, only 

 slightly convex, collar absent, calli scarcely evident. Dorsal surface im- 

 punctate ; clothed with two types of pubescence. Legs average, femora not 

 thickened, tibia slender, with two rows of strong spines. 



Genotype : Orthotylellus samoanus, sp. no v. 



