On the Australasi'an Species o/'Ochlerotatus. 521 



depositing tlioir ova in it in rapiil succession. Intrusive 

 males were promptly expelled. Samples of the fisli, male 

 and female, were obtained and of the ova in ovory stago o£ 

 developnient. 



"The most striking feature of the fish in its natural state 

 13 the heavy opaque white under lip. This is not always 

 very evident in the preserved specimens, and the very faint 

 pink coloration on the postoriov edi>"e of the tail appears to 

 have entirely vanished/' 



LYII. — A Key to the AustraJasian Species o/OchL>rotatu3 

 (Culicidai). By F. W. Kdwards, B.A., F.E.S. 



(Publishod bj' permission of the Trustees of the British Museum.) 



A RECENT examination of theCulicidas described last year by 

 Mr. E. H. Strickland has revealed the fact that many of them 

 were previously known under other names. As all Strick- 

 land's typo=, and, indeed, the types of most of the Culicidaj 

 so far described from Ausi-alia, are in tlie British Museum, 

 the task of composing a table of the species proved a compa- 

 ratively easy one, and it seems as though it would be of use 

 to publish at once the results of the examination of the 

 material in the National Collection. The following table is 

 of course intended to be used in conjunction with the published 

 descriptions. For a definition of the genus Ochlerofafus, with 

 full generic synonymy, vide ' Bulletin of Entomological 

 Research/ vol, iii. no. 1, 



Table of the Species. 



1. Joints of tarsi, especially on the hind legs, 



pale-ringed at the base 2. 



Joints of tarsi not pale-ringed 16. 



2. Thorax, femora, and tibiae adorned with fine 



white lines 1 . notosaiptus, 



Species not so marked 3. 



3. Deep blue, submetallic scales on abdomen, 



legs, proboscis, and palpi 2. purpurexis, 



Not blue species 4. 



4. Head and sides of mesonotum clothed with 



short yellowish spindle-shaped scales. ... 3. aculeatus. 

 Head in middle and whole of mesonotum 

 clothed with longer, curved, quite narrow 

 scales 5. 



Ann. & Mag, N. liist. Ser, 8. Vol. ix. 35 



