36 Transactions. — Zoology. 



Limnobia conveniens. 



Limnohia conveniens, Walker, List of Diptera in the Brit. 



Mus., p. 57 (1848) ; Cat. N.Z. Diptera, p. 17. 



A small pale species with unspotted wings which is un- 

 known to me. The fifth longitudinal vein is said, " beyond 

 half its length, to send forth a branch which is forked." 



Genus Tegchobola, Osten-Sacken (1868). 

 "One submarginal cell; four posterior cells; a discal 

 cell ; the tip of the auxiliary is far beyond the origin of the 

 second longitudinal vein ; the marginal cross-vein is some 

 distance anterior to the tip of the first longitudinal vein ; a 

 supernumerary cross-vein connects the sixth and seventh 

 longitudinal veins. Antennae 14 - jointed. Legs slender ; 

 tibiae without spurs at the tip ; empodia indistinct ; ungues 

 with teeth on the under-side" (Osten-Sacken). 



Key to the Species. 



Wings with ocellated spots . . . . . . .. T. variegata. 



Spots on the wings not ocellated. 



Discal cell regular . . . . . . . . T. avipla. 



Discal cell irregular . . . . . . . . T. picta. 



Trochotoola variegata, sp. nov. 



Yellowish-brown ; mesonotum with three narrow brown 

 stripes; scutellum and centre of the metanotum dark-brown. 

 Legs dark-brown ; knees and a ring near the distal ends of 

 the femora pale. Wings yellowish, with irregular, brown, 

 ocellated markings, one round the origin of the second 

 longitudinal, another round the marginal cross-vein, another 

 at the outer edge of the discal cell, another round the super- 

 numerary cross-vein, another at the tip of the sixth longi- 

 tudinal, besides several irregular markings. First longitudinal 

 vein arcuated near the marginal cross-vein, and joining the 

 costa almost at right angles to it. Posterior cross- vein in a 

 line with the inner margin of the discal cell. Joints of the 

 flagellum of the antennae oval. Length, 3 10 mm. ; wing, $ 

 14 mm. The female is unknown. 



Hah. Wellington (Hudson). 



Trochobola ampla. Plate III., fig. 10. 



Tipula fumii)ennis, Hudson, Man. of N.Z. Entomology, 



p. 48, pi. v., fig. 2 ; no description. 



Brown ; the legs yellowish, with a brown band near the 

 tip of each femur. Thorax with some indistinct pale stripes. 

 Wings pale yellowish-brown ; a dark spot at the base of the 

 anterior basal cell ; a brown transverse fascia from the costa, 

 tln-ough the origin of the second longitudinal, to the super- 

 numerary cross-vein. Apex of wing beyond the basal cells 



