THE VICTORIAN NATURALIST. 9 



Xanthagrion . . . Common. 



Nososticta ... N. solida. Base of wings generally yel- 



lowish, sometimes not. 



Alloneura ... Very like Nososticta, with some differences 



of reticulation. 



Isosticta. ... I. simplex, long abdomen, small head. 



Pseudagrion ... A new species received. 



Idiocnemis ... Two remarkable species, small, outer edge 



of wings dentated. 



Ischnura ... Several species. 



Agriocnemis ... Three species in Australia, very small size. 



Hemiphlebia ... Very small, rare. 



Telebosis ... Two or three species. 



DESCRIPTIONS OF NEW VICTORIAN COCCID^. 



By E. Ernest Green, F.E.S., Government Entomologist, Ceylon. 



(Communicated by F. G. A. Barnard.) 

 {Read before the Field Naturalists' Club of Victoria, 12th February, 1900.) 



The following new species of Coccidse were collected by Mr. 

 Jas. Lidgett, of Myrniong, Victoria, and forwarded to me for 

 identification and description. I am indebted to Mr. Lidgett for 

 the notes on the habits, &c, of the living insects. 



FAMILY— COCCIM:. 



Sub-family Diaspin^:. 



Mytilaspis bicornis. Green and Lidgett, n. sp. 



Female puparium reddish brown, paling to white at posterior 

 extremity. In some examples the white area is much broader 

 and more conspicuous than in others. Form normal, dilated 

 behind, often irregularly contorted. Length, 1.50 to 2 mm. 



Adult female of normal form, narrowest in front, broadest 

 across the abdominal segments. Antenna consisting of a small 

 chitinous tubercle, with a longish stout curved hair and a small 

 point on one side. Parastigmatic glands at anterior spiracles 

 only, consisting of usually two orifices. In many specimens, but 

 not in all, a pair of large circular pores is noticeable on the 

 median dorsal area of the meso- and metathorax. Pygidium 

 (fig. 1) broadly rounded, lobes rather small, often scarcely pro- 

 jecting beyond the margin ; median pair simple, extremity 

 broad and slightly rounded, without any indentations or 

 crenulations ; second pair bifid, the cusps pointed, the mesal 

 cusp largest ; other lobes obsolete. Beyond the lobes on each 

 side are three or four small chitinous prominences, each bearing 

 two minute pointed processes, scarcely if at all projecting beyond 

 the margin, situate on the ventral surface, a large semilunar pore 



