28 Transactions. — Zoology. 



thorax ; the apex 2-lipped. Neuration nearly complete ; the 

 third longitudinal vein curved downwards and forked after the 

 cross- vein ; discal cell much elongated ; two distinct basal 

 cells ; anal cell closed ; a triangular cell below the discal. 

 Legs slender. Abdomen almost globose. Colour metallic. 



Apsoma muscaria. 



A. muscaria, Westwood, Trans. Ent. Soc. London, 1876, 

 p. 510, pi. v., fig. 2. 



" Very convex, shining, coppery-green, with yellowish 

 pubescence ; proboscis and antennae black. Legs dirty-yellow, 

 middle of the femora darker. Wings hyaline, the veins black. 

 Length, 8-9 mm. ; of proboscis, 4 mm. ; expanse of wings, 

 18 mm." (Westwood). 



Hab. New Zealand (Hope collection, Oxford). 



I have not seen this species. The figure shows the abdo- 

 men as broad as long, and pointed at the apex. 



Genus Helle, Osten-Sacken (1896). 



" Eyes glabrous, contiguous above the antennae as far as the 

 ocellar triangle. Three ocelli. Antennae inserted about the 

 middle of the head (seen in profile), very small ; second joint 

 incrassate at the base and attenuated beyond it in the shape of 

 an arista-like prolongation. Proboscis elongate. Hind part of 

 the head swollen. Thorax gibbous; prothoracic lobes con- 

 tiguous along a rather long suture, on both sides of which they 

 expand hindwards, so that the hind margin of the prothorax 

 shows a deep emargination. Neuration almost complete; a 

 single submarginal cell ; an elongate, somewhat pentagonal, 

 discal cell ; four posterior cells, incomplete in consequence of 

 the post-discal veins not reaching the margin; two distinct 

 basal cells ; the anal cell closed long before the margin, its 

 petiole stunted a little before reaching the margin. Tegulae 

 large. Legs smooth, without spurs ; tarsi but little shorter 

 than the tibiae ; joints three and four are the shortest, both 

 together nearly equal the first in length. Three pulvilli. 

 Abdomen oval, with the first segment short ; the five other 

 dorsal segments longer and nearly of the same length, with 

 coarctations at the incisures" (Osten-Sacken). 



The neuration closely resembles that of Megalybus pictus r 

 Westwood, Trans. Ent. Soc. London, 1876, pi. v., fig. 4a. 



Helle longirostris. 



Acrocera longirostris, Hudson, Man. N.Z. Ent., p. 56, pi. vii. r 

 fig. 4, 1892 (no description). Helle longirostris, Osten- 

 Sacken, Ent. Mo. Mag., 2nd series, vol. vii., p. 16 (1896). 



"Face brownish-yellow, its upper part and hind parts of 

 the head black ; the latter with pale down. Upper part of 



