266 Osten Sacken: Three Troehobolae. 



a subhyaliue one, within which the brown spots are more scarce; the 

 distal third of the wing is darker again, containing three large brown 

 spots, mottlcd with paler dots, and leaving an irregulär, subtriangular, 

 subhyaline space between them. 



Length 9 mm; the wing 11 mm. 



Hab.: New-Zealand, South-Island (Helms). 



Trochobola tessellata White d"Q. 



Limnobia tessellata White, Zool. Voy. Erebus and Terror (thus 

 quoted in Walker's List etc. I, p. 45, with the Corrigendum 1. c. 

 IV, p. 1150; the locality is not given). 



The above reference contains nothing but what I have reproduccd 

 herc. The species not having, as far as I know, been described 

 since, I reproduce the notes which I took from specimens that I 

 examined, many years ago, in the British Museum and in Oxford. 



In the Brit. Mus. the species was represented by a Single, im- 

 perfect specimen, which was much smaller tban T. Dohrni; the 

 ocellar spots of the wiugs resembled very much those of the European 

 and the N.-American species (annulata and argus); the infuscation 

 of the second basal cell, which distinguishes T. Do/irni, does not 

 exist in tessellata. In the Oxford Museum I have scen two (cf Q) 

 larger specimens from Tasmania. which apparently belonged to the 

 same species. The wings, which I compared on the spot with those 

 of the North-American T. argus, as figured by me in the Monogr. 

 N.-A. Dipt. IV, Tab. I, f. 4, did not show any difference in the ocellar 

 pattern. The body was not well preserved enough for a comparison; 

 the femora had, as all Troehobolae seem to have, brown rings betöre 

 the tip. 



