288 Transactions. 
Genotype.—Psilochorema mimicum McL. 
Only two species are known, Ps. mimicum McL. and Ps. confusum MeL., 
both confined to New Zealand. 
Tzxr-riG. 2.—Psilochorema confusum McL., 9. Wing-venation. (For lettering 
see р. 314.) А small hyaline area is enclosed by the dotted lines in forewing. d: 
Genus HypRoBIOSELLA n. g. (Text-fig. 3.) 
Allied to Hydrobiosis McL., but easily distinguished from it by the 
following characters : A closed radial cell present in both wings, with Af, 
and Af, sessile upon it. In the forewing, the humeral veinlet is replaced 
Cu 
Tzxr-ric. 3.—Hydrobiosella : i i 
CUM stenocerca n. g. and sp., г. Wing-venation. 
(For lettering see p. 314.) Th e t Р Dus а AN 
positions of small ка: с е р lines in forewing indicate 
by an oblique veinlet situated nearly half-way along Median cell 3 
absent in both wings; Af : : uc i 1 H 
; : ; Af, and Af, in forewing, and Af, in hindwing, 8 
short forks with very long stalks. The cubital fork, Af ., long and strongly 
