98 



INSECTS OF SAMOA. 



teeth, base and apex of liind tibiae and a broad longitudinal lateral stripe 

 down side of venter, dark brown shading to black ; basal fourth of fourth 

 antennal segment, extreme apex of scutellum, a broad median stripe down 

 middle of venter (not extending on to the seventh sternite), an irregular rather 

 darker longitudinal fleck on each segment of venter, in the middle of the dark 

 brown lateral stripe, and the connexivum fulvous yellow ; a broad stripe down 



Text-fig. 2. — Riptorhis insularis, sp. n. : a, dorsal view of head, pronotum and scutellum ; 



h, terminal view of male pygophor. 



each side of the underside of head extending on to the propleura across the ^to- 

 acetabula and two large oval spots on the middle of the meso- and meta-pleura 

 respectively, bright shining yellow ; the meso- and meta-pleural spots not 

 forming a continuous line with the lateral stripe on the head and prothorax, 

 and not margined with black ; lateral margins of humeral spines shining sordid 

 yellow ; front and middle legs and middle of hind tibiae, pale ferruginous brown ; 

 dorsal surface of abdomen uniformly bright ferruginous brown. 



