HEMIPTERA— HETEROPTERA. 



97 



Trail : 1 specimen, 25. ix. 1923 (Swezey and Wilder) ; Leone Road : 5 specimens 

 and 1 larva, 19.ii.l924 (Bryan). 



Manua : — Tau : 4 specimens, 27.ix.1923 (Swezey and Wilder). 



This is the most widely distributed species of the genus, and occurs through- 

 out the Indian, Indo-Chinese, Malaysian, Oriental, Austro-Oriental, and 

 Australasian Regions, extending much farther east than the closely allied 

 species L. acuta, Thunb., which is apparently not found east of New Guinea. 

 Kirkaldy's record of L. acuta for Fiji undoubtedly refers to L. varicomis, F. 

 Both these species are well known pests of rice in the Far East. 



14. Noliphus discopterus Stal. 



Noliphus discopterus Stal, Enum. Hemipt., Ill, p. 87, 1873. 



Upolu : — Apia : 3 specimens, 28.X.1923, 1 specimen, 9.iii.l924, and 1 speci- 

 men, 4.V.1924 (Armstrong) ; 1 specimen, 28.iv.1925, and 1 larva, vi.l924 ; 

 Lalomanu : 1 specimen, xi.l924 ; Tuaefu : 1 specimen, 16.ix.l923 (Swezey and 

 Wilder). 



Recorded from Samoa. This species is closely allied to the Fijian N. 

 insularis Stal, and is probably merely a local race of that species. 



15. Melanacanthus margineguttatus Dist. 



Melanacanthus margineguttatus Distant, Ann. Mag. Nat. Hist., (8), VII, p. 585, 1911. 

 Mirperus margineguttatus Bergroth, Mem.. Soc. Ent. Belg., XXII, p. 160, 1913. 



Upolu : — Apia : 1 specimen, 7.X.1923, 2 specimens, 28.x. 1923 ; 1 specimen, 

 4.V.1924 (Armstrong) ; 1 specimen, ii.l924, 1 specimen, 12.iii.l924, 3 specimens, 

 28.iv.1924, 2 specimens, vi.l924, 1 specimen, x.1924 ; Malololelei : 1 specimen, 

 2,000 ft., 23.xi.1924. 



Originally recorded from N.W. Australia. The range of this species can 

 now be extended to include Queensland, New Zealand, and Samoa. Stal's 

 subgenus Melanacanthus must be elevated to generic rank, and is perfectly dis- 

 tinct from the African genus Mirperus Stal. 



16. Riptortus insularis, sp. n. (Text-figs. 2 and 3). 

 Colour. — Sparsely covered with a short pale pubescence. Deep fer- 

 ruginous brown, eyes, two longitudinal stripes on base of vertex behind the 

 ocelli, first and last segments of rostrum, extreme apices of second and 

 third antennal segments, gula, pro-, meso-, and meta-sterna, hind femoral 

 II. 3. 2 



