Eplicmcrid^ of New Zealand. 293 



Oniscigaster distans, sp. nov. (Plate X, figs. 66 & Qc, 

 details). 



Kesembles 0. Wakefieldi in size and markings, but differs in the 

 dorsal segments 6 — 9 not being produced into lateral flanges oniscoid- 

 ally ; their dorsa are roundly arched, with the posterior lateral 

 angles obtuse, not produced, and the posterior margin transverse. In 

 the fore wings the edging of the dark-ljordered veinlets in the wider 

 parts of the first two areas is more neatly defined and not blurred ; 

 and the wider part of the pterostigmatic region is more distinctly 

 tinted with warm sepia grey than in the otlier species. I have seen 

 only 1 o subimago (of which the wings are blackish-grey with 

 black neuration narrowly edged with grey, and with a pale spot 

 exten<ling forwards from the proebrachial (6) fork, and a curved 

 narrow band running transversely from the costa at the base of tlie 

 wing immediately exterior to the humeral cross-vein) and 2 5 im. 

 The set» of the adult ? are piceous, or greyish with black joinings. 



Hcd>. Wainui-0-mata River, Wellington {Hudson, 

 No. 34 and 34/>). 



In the allied genus Siphlurus, a specific difference is 

 noticeable in the lateral outline of some of the abdominal 

 segments of S. cirmatus and S. lacnstris, $ im. analogous 

 to that noted between 0. Wakefieldi and 0. distans ; but 

 the difference is not nearly so great as in these species 

 of Oniscigaster. 



Explanation of Plate X. 



\_See explanation facing the Plate.] 



trans, ent. soc. lond. 1899. — part hi. (sept.) 20 



