298 STUDIES IN AUSTRALIAN MECOPTERA, i., 



epipharynx, and the presence of a definite proboscis with bilobed 

 labellum, are unique in Mecoptera. Here is a development 

 closely parallel to that of the Diptera. Compare, for instance, 

 the mouth-parts of Nannochorista with those of the Blepharo- 

 ceridcn (see F^ellogg, "Genera Insectorum, Fasc. .")6, Wepharo- 

 ceridce'''). 



In conclusion, it seems clear that the discovery of this remark- 

 able new type of insect is of the greatest interest to students of 

 all the Panorpoid Orders, and cannot fail to influence very 

 greatly our views upon the phylogeny of the Lepidoptera and 

 Diptera, as well as radically altering our conception of the 

 Mecoptera as an Order preserving an original freedom of action 

 between fore- and hind win s^s. 



Appendix. 



After completing my work on the Nannochoristidce, it occurred 

 to me that it was very likely that these remarkable insects 

 might be found in New Zealand as well as in Tasmania. I 

 therefore sent out pairs of cotypes from my series to several 

 correspondents in the Dominion. In reply, I received from M\\ 

 A. Philpott, F.E.S., of Invercargill, a pair of a very fine species, 

 which he had taken in 1913, and had put by in his collection, 

 thinking that it was some peculiar or aberrant form of Lacewing. 



A study of these insects reveals the fact that they are very 

 closely allied to the Tasmanian forms, but are even more reduced 

 as regards their venation. 1 think it best to place them in a 

 new genus, the definition of which is here given, together with 

 a description of the new species, and a Text-figure of the wings 

 (Text-tig.3). 



Genus C h grist ella, n.g 



Insects of the general size, appearance, and structure of 

 Nannochorista^ but differing from that genus as follows : — 



Wings somewhat broader and shorter than in Nannochoricta; 

 the second apical fork (between R^ and R^) not divided into two 



