238 October, 



SOME ADDITIOlSrS TO THE NEUROPTEROUS FAUNA OF NEW 

 ZEALAND, WITH NOTES ON CERTAIN DESCRIBED SPECIES. 



BY ROBERT McLACHLAN, F.R.S., &c. 



More than 20 years ago I published (Annals and Mag. Nat. Hist., 

 July, 1873) a Catalogue of the Neuropterous Insects of New Zealand. 

 Since then a few additional species have been described, and sundry 

 alterations in nomenclature, &c., have been found necessary. It is 

 not my intention in the present paper to revise that Catalogue ; I 

 propose simply to give descriptions of a few hitherto unnamed species, 

 and to intercalate therewith a few supplementary notes. The additions 

 to my collection of these insects from the Colony during the period 

 above mentioned have not been great ; for several of them 1 am 

 indebted to Mr. Q. Y. Hudson, of Wellington, an industrious ento- 

 mologist and keen observer, who has done good work in Neurojptera 

 (as in other Orders) by describing and figuring the metamorphoses of 

 several species in his Manual of New Zealand Entomology (1892). 

 From him, and from others, I still have a few species, chiefly Tri- 

 cJioptera, that await examination. 



TKICHOPTEEA. 



Fam . BEBIC08T0MA TID^. 

 OEcoNESUS, McLach. 

 This genus {i^) was established so long back as 1862 (Trans. 

 Ent. Soc. Lend., 3rd ser., vol. i, p. 303, with further notes in Journ. 

 Linn. Soc. Zool., x, p. 211, pi. ii, fig. 1 , 1868, and, $ , in Annals and Mag. 

 N. H., July, 1873, p. 39), It becomes necessary to supplement the 

 published descriptions, more especially as there co-exists in New 

 Zealand another genus the aspect of which is very similar. 



$ . In the anterior wings there is a deep fold or groove commencing at the arculus 

 on the inner margin, where it is very broad, extending to the thyridium, and thence 

 continued obliquely : the neuration seems to defy comparison with a regular condi- 

 tion ; the sector radii would seem to arise from the upper cubitus, which, in its 

 turn, arises from the radius near its base (a condition that merits still further exami- 

 nation and confirmation !) , and the apical neuration is equally extraordinary (c/l 

 fig., loc. cit. supra), especially the position of the 3rd apical cellule (which bears 

 the " point " near its base common to that cellule). In the posterior wings there 

 are indications, on the costal portion, of the fold on the anterior ; the neuration is 

 more regular, and the apical forks 1, 2 and 3 are present. 



? . Neuration regular ; in the anterior the upper edge of discoidal cell is 

 straight ; apical forts 1, 2, 3 and 5 present : in the posterior apical forks 1, 2, 3 and 

 5 present {cf. Annals and Mag. Nat. Hist., I. c. supra). 



