HEMIPTERA— HETEKOPTERA. 



99 



Structure. — Head rather elongate, as long as wide, including eyes (68 : 66), 

 finely punctato-rugose, ocelli prominent rather closer to one another than to 

 eyes ; relative lengths of antennal segments, 75 : 60 : 58 : 145 ; rostrum stretching 

 to base of hind coxae, relative lengths of segments 45 : 50 : 30 : 50. Pronotum 

 as long as broad, excluding humeral spines, the latter rather short and broad, 

 only moderately acute ; together with the scutellum, punctato-rugose. Corium 

 and clavus rather sparsely but distinctly punctate, the punctm'ation much less 

 dense than in R. obscuricornis and R. serripes F. ; trapezoidal cell on corium 

 long and rather narrow. Posterior margin of seventh abdominal tergite ((^) 

 more or less rectangularly produced, the actual angle rounded. Male genitalia 

 figured (Fig. 2, b). Total length 15 mm., breadth across humeral spines 3 mm. 



Text-fig. 3. — Riptortus insularis, sp. n. : lateral view of head and thorax. 



Upolu : — -Apia : 1 specimen, 12.viii.l924, and 1 specimen, 12.X.1924 (Arm- 

 strong) ; Aleipata, Lalomanu : 2 adults (including type), and 2 larvae, xi.l924 ; 

 Vailutai : 1 specimen, 9.vi.l924 ; Malololelei : 1 specimen, 9.vi.l924. 



Savaii : — Safune : 1 specimen, 15.V.1924 (Bryan). 



Also from Fiji : — Savu Savu : 1 adult and 1 larva, iii.1922, 1 adult and 

 1 larva, v. 1922 (H. W. Simmonds) ; Motariki : 1 specimen, v.1921 (Simmonds) ; 

 Cuvu : 1 specimen, l.i.l917 (A. Veitch). 



Allied to R. serripes (= robustus Dall.), but a much smaller and more slender 

 species with longer head, narrower pronotum, shorter humeral spines, less 

 densely punctate corium, the hind tibiae fulvous yellow with base and apex 



