ON SOME RHYNCHOTA 809 



The present species differs from M. /urea (a Muls. Rey by 

 being much smaller, rather narrower in proportion, and by the 

 relative length of the antennal segments. 



Fam. NOTONECTIDAE. 



13. ? Plea brunni Kirkaldy. 



A number of Pleae from South New Guinea , Waikunina , 

 June 1890, Loria; are probably referable to this species. — 

 In some individuals the whole dorsal surface (except the head 

 and scutellum) is finely and clearly reticulated , with a large 

 dark puncture inside each of the reticulations; in others there 

 is no trace of any reticulation. 



14. Anisops fieberi Kirkaldy. 



New Guinea: Rigo (Loria, July 1889j; Port Moresby (Loria, 

 June, 1889). 



15. Nychia marshalli (Scott); nov. var. sappho. 



Distinguished from the Nychiae from other localities by the 

 black spot on the intero -lateral margin ofthecorium near the 

 middle. This is constant in the 18 brachypterous examples, but 

 is absent in the macropterous form. It is probably also structu- 

 rally distinct, but I have not been able to work out the diffe- 

 rences in the species of Nychia from the dried material I have 

 had. — The examples all come from South New Guinea, Rigo, 

 (July 1889, L. Loria). 



In the macropterous individual the clavus in very large, the 

 interior margin profoundly sinuate (the basal third concave) ; 



Nychia marshalli v;ir. sappho, elytron. 



a clavus, b coriuin, c exocorium 



d and e membrane 



f semiobsolete coriomembraual suture 



(j " crease " in centre of corium 



h corial " false " - suture. 



