36 Mr. H. Campion on 



that both of tliem are identical with the insect which Mon- 

 trouzier erroneously referred to the genus Sympycna. 

 Montrouzier's description is in the following terms : — 



" Sympecma Ochracea (Montrousier), Kanala. Long., 

 0'°j045-0"",050. Tete noire. Corselet jaune d'ocre avec une 

 ligne mediane ct deux de chaque cote, noires. Les 5 premiers 

 Segments de Vabdomen jaune d'ocre. Bout de tahdumen, 

 Pieds, ParastigmaSj noirs.'' 



Brief as it is, the description is not free from inaccuracies, 

 for it is really the first six segments of the abdomen, and 

 not the first five merely, which are ochraceous, and only two 

 of the remiiiuing segments aie l)lack^ the two terminal ones 

 being dull blue. At the same time, the species in question 

 is immediately recognisable, not only because of its large 

 size and striking scheme of coloration, but also by reason of 

 the densely-veined wings and the forcipate anal appendages 

 implied in the original generic reference. 



The dimensions of Montague's specimens are : — 



Mt. Mou Abdomen 355 mm. 



(iiicl. anal append.;. 

 Baie Ngo Abdomen >40"0 mm. 



(bent in several places). 

 Mt. Canala (1) .... Abdomen A'l'o mm. 



Mt. Canala (2) . . . . „ 42-5 „ 



In total length these specimens vary from 45 mm. to 

 52 mm., a somewhat greater difference than the range 

 indicated by Montrouzier (45-50 mm.). The measurements 

 given by Ris for the male sex (abdomen 43 nun., hind wing 

 29 mm.) agree fairly well with those of three of the males 

 in the present collection, but the specimen bearing the 

 earliest date, that from Mt. Mou, is considerably smaller 

 than the others. 



In the wings of this species the anal crossing is variable 

 in position, and may be either before, at, or after the level of 

 the first antenodal. 



Subfamily Protoneurin.^. 



Genus Isosticta, Selys. 



Isosticta is typically a New Caledonian group, and both 

 of the two species which have been described from that 

 island were apparently met with by Mr. Montague. In 

 addition, he was fortunate enougii to discover a tliird species, 



