M'Lachlan. — On Neio Zealand Neuroptera. xcvii 



Genus MiCROMUS, Rambur. 



24. Micromus fasmanice, Walker. 

 Hemerobius tasmanicp, Walk. Trans. Ent. Soc. Lond. ser. 2, vol. v. p. 186.* 



I have two examples which scarcely appear to differ specifically from 

 others from Australia ; but it is desirable that long series of both Australian 

 and ISTew Zealand specimens should be compared. The insect has the costal 

 area of the fore wings narrowed at the base, and without a recui'rent nervule, 

 and hence is a Micromus and not a Hemerobius as restricted. 



TEICHOPTERA. 

 Sericostoraatid.88. 



Genus QSconesus, M'Lachlan. 



25. CEconesus maori, M'Lachlan. 



(Econesus maori, M'LacU. Trans. Ent. Soc. Lond. ser. 3, vol. i. p. 303 ;* id. Jonrn. 

 Linn. Soc. Zool. vol. x. p. 211, pi. ii. fig. 1 (neuration), male. 



I now possess the female of this insect; it differs from the male in its 



larger size ; the neuration of the anterior wings is regular ; and in the posterior 



wings there are two additional apical forks. The maxillary palpi are 5-jointed, 



the basal joint very short, the second slightly longer, the third to fifth still 



longer and nearly equal inter se. 



Genus Olinx, M'Lachlan. 



26. Olinx feredayi, M'Lachlan. 



Olinx fereday'i, M'LacM. Jonrn. Linn. Soc, Zool. vol. x. p. 198, pi. ii.figs. 2-2d (details).* 



Genus Pycnocentria, M'Lachlan. 



27. Pycnocentria funerea, M'Lachlan. 



Pycnocentria funerea, M'Lachl. Trans. Ent. Soc. Lond. ser. 3, vol. v. p. 252, pi. xviii. 

 fig. 1 (details).* 



28. Pycnocentria evecta, M'Lachlan. 



Pycnocentria evecta, M'Laclil. Jonrn. Linn. Soc, Zool. vol. x. p. 199, j)l. ii. fig. 3 

 (details).* 



29. Pycnocentria aureola, M'Lachlan. 



Pycnocentria aureola, M'Lachl. Jonrn. Linn. Soc, Zool. vol. x. p. 200, pi. ii. figs. 4&4a 

 (details).* 



Helicopsyche. 



This term was applied to certain cases of the larvae of Trichoptera found in 



Europe, which depart from the usual forms and assume a spiral condition, thus 



resembling small Helices, formed of sand grains neatly cemented together ; 



and this resemblance has often deceived conchologi.sts, who have described 



them as shells. They have since been found in streams almost all over the 



world, and their real nature has long been known. Hecently in North 



America the perfect insect of one species has been bred. Three forms occur in 



New Zealand {cf. M'Lachlan, Journ. Linn. Soc, Zool. vol. x. p. 200). There 



is yet much mystery about the species that form them ; and it is possible that 



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