INSECUTOR INSCITI^ MENSTRUUS 301 



equal acute spines, the median spine with microscopic shoulders 

 at the base. 



Habitat. — New Zealand (South Island). 



Holotype, male, Kaituna, Banks Peninsula, Canterbury, Feb- 

 ruary 18, 1922 (J. W. Campbell). 



Gonomyia (Leiponeura) longispina, new species. 



Male. — Length about 2.7 mm. ; wing 3.7 mm. 



Generally similar to G. (L.) nigrohalterata Edw., differing 

 as follows : Size smaller. Pleural brown stripe broader, re- 

 stricting the ground-color, continued caudad across the posterior 

 half of the median sclerite of the mesonotal postnotum. Apices 

 of the knobs of the halteres conspicuously yellow. Wings some- 

 what more inf uscated. Venation : r-m not more than twice 

 the deflection of R^^-^ ; cell ist M., not so strongly narrowed at 

 its proximal end, gradually widened distally ; basal deflection 

 of Cmj about one-half its length beyond the fork of M. 

 Abdomen pale brown, the sternites yellowish. Male hypo- 

 pygium of the unique type apparently with asymmetrical pleural 

 appendages, the left appendage a slender blackened hook, the 

 right appendage a long, straight black spine, much longer than 

 the corresponding spine of G. nigrohalterata. 



Habitat. — New Zealand (North Island). 



Holotype, male, Ohakune, altitude 2,060 feet, April 9, 1922 

 (T. R. Harris). 



Limnophila stemma, new species. 



Male. — Length about 15 mm.; wing 16.1 mm. 



Rostrum and palpi brown. Antennae rather elongate, if 

 bent backward extending to beyond the end of the first ab- 

 dominal segment ; scape brownish yellow ; flagellar segments 

 black, the basal segments indistinctly paler at the incisures. 

 Head brown, darker on the anterior part of the vertex. 



Pronotum obscure orange, the sides of the scutellum darker. 

 Mesonotal praescutum dark brown with four more or less con- 

 fluent obscure yellow stripes, the intermediate pair becoming 

 infuscated behind ; scutellum and postnotum lirownish testa- 



