Odonata from New Caledonia. 35 



fauna of Fiji^ which is the only other island in the Pacific 

 whence any member of the tribe has been recorded. At 

 the same time, Anaciteschna jaspidea, Burm,, and Diplacodes 

 trivialis, Ramb.^ both of which are well known in Fiji, have 

 never been met with in New Caledonia, although they might 

 have been expected to occur there. 



In addition to New Caledonia, Hemicordulia oceanica, 

 Selys, has beeu recorded from Tahiti, the Tonga Islands, 

 and doubtfidly from New Britain. 



Ischnura heierosticta, Burm., Diplacodes bipunctatu, 

 Brauer, and D. hcematodes, Burm., are essentially Australian 

 and Pacific forms. 



Orthetrum caledonicum, Brauer, Agrionoptera insiynis allo- 

 genes, Tillyard, and Rhyothtmis graphiptero, Ramb., are 

 found elsewhere on the Australian continent or in adjacent 

 islands, while ^schna brevistyla, Ramb., is common to New 

 Caledonia, Australia, and New Zealand. 



Ischnura aurora, Brauer, ranges from Ceylon to Tahiti, 

 and Tramea limbata, Desj., in its various forms, from 

 Senegal to Samo.i. Finally, Pantala Jlavescens, Fabr., has a 

 world-wide distribution. 



Family Agrionidae. 

 Subfamily Meqapodaguionjn.^. 



Argiolestes sarasini, Ris. 



1 S , Mt. Nekando, 29. iii. 14 ; i ? , Mt. Nekaudo, '27. v. It ; 



1 S , Houailou R., 3-15. xi. 14. 



Length of abdomen : — c?, 41 (Mt. Nekando) to 43 mm. 

 (Houailou R.) ; ? , 34 mm. 



Length of hind wing : — ^ , 34 5 (Houailou R ) to 35 mm. 

 (Mt. Nekando) ; ? , 31 mm. 



All these specimens are considerably smaller than tlie 

 types, the dimensions of which are : — Abdomen : ^ 48, 

 ? 43 mm. Hind wing : cJ 39, ? 40 mm. 



Argiolestes ochraceus, Montrouzier. 



Si/>ii/)ec»ia Ochracea, Montrouzier, Aun. Soc. Linn. Lyon, xi. p. 247 



■(1864). 

 Argiolestes rouxi, Ris, Nova Caledonia, Zool. ii. p. 60, figs. 3 & 4 (1915). 



1 ^ , Mt. Mou, 20. iii. 14 (727) ; 1 c? , Bale Ngo, 25. iv. 14; 



2 J, Mt. Canala, 13. vi. 14. 



There can be no doubt that our species is the same as 

 that described by Ris, and there can be little doubt, either, 



•6* 



