Odonata from New Caledonia. 41 



name T. spimpes, agrees well with the holotype male of 

 /. tillyardi in its thoracic pattern and iu having Cui ending 

 two cells beyond the quadrangle, I am led to associate the 

 Mt. Canala female with the male in que<?tion by the under- 

 mentioned points of greater resemblance : — The shorter 

 abdomen and hind wings, the fewer postnodals, the less 

 numerous cells between the origin of Mg and the origin of 

 Mi„. The agreement in the place and month of capture are 

 also worthy of note. 



Isosticta spimpes, Selys. 



1 ? (allotype), Mt. Koghi, 10. iv. 14 (874) ( ? hitherto 

 unknown) . 



Length of abdomen 32"5 mm. ; hind wing 24- 5 mm. 

 This specimen is almost identical in coloration with the 



Isosticta spiiiipes, Selys, 5 , allotype. 

 Hind margin of prothorax, in dorsal view. 



female from Mt. Canala which I have attributed to /, tilly- 

 ardi, but the metepisternum is entirely black behind the 

 metastigma, as in the male of the new species. I do not 

 attach any great importance to the length of the meta- 

 stigmatic colour-line, as in one of the females of /. robustiur 

 in the present collection the line terminates at the meta- 

 stigraa, while in the other it is prolonged far beyond it. 

 The two females are readily distinguished from one another 

 by structural characters. In what I regard as /. spimpes the 

 hind margin of the prothorax (fig. 4) has a shorter and 

 broader median projection ; the abdomen is slenderer; the 

 ovipositor is shorter, little more than the styles being visible 

 in dorsal view ; the postnodals are more numerous ||m| ; 



