51 



OBSERVATIONS ON SOME RECENTLY DESCRIBED COCCIDAE. 



By E. Ernest Green, F.E.S., F.Z.S. 



Pseudococcus bicaudatus, Keuchenius, Medel. v.h. Besoekisch Proefstation, Djemba, 

 No. 16, 1915, p. 63 [see also Review of Applied Entomology, Nov. 1915, p. 647]. 

 The author's detailed description of the supposed new species shows quitfe clearly 

 that he is dealing with Pseudococcus virgatus, described by Cockerell in 1893. The 

 species occurs commonly throughout the tropics of both hemispheres and has been 

 described by different authors under several names, e.g. ceriferus (Newstead), talini 

 (Green), and marchali (Vayssiere). 



Fiorinia morrisi, Brittin, Trans. N.Z. Inst., Wellington, xlvii, 1914 (issued July 1915), 

 p. 149 [see also Rev. Appl. Entom., Dec. 1915, p. 74]. 

 Through the courtesy of the author, I have had an opportunity of exami n ing 

 t}^ical examples of this insect, and find that they agree with examples of F. asteliae 

 (ex coll. W. M. Maskell). Fiorinia asteliae is now considered to be a synonym of 

 F. gigas of Maskell, and both have been rightly relegated to the genus Leucaspis. 



Fiorinia maskelli, Brittin, loc. cit., p. 157. 



After examination of specimens received from the author, I am convinced that this 

 species also should be referred to the genus Leucaspis. I append drawings of the 

 posterior extremity of the nymph (fig. 1, a) and of the adult female (fig. 1,6). I am 

 puzzled by the author's representation (loc. cit., fig. 3) of the pygidium of the adult 

 female. It will be seen that this agrees, more or less, with my figure of the nymph, 

 except that it shows circumgenital glands, which, of course, are never present in the 

 nymphal stage. The species appears to be distinct, but approaches kerinan£nsis of 

 Lindinger. 



Pinnaspis nitidus, Brittin, loc. cit., p. 151. 



This proves to be Mytilaspis pyriformis of Maskell. 



Lecanium armatum, Brittin, loc, cit., p. 152. 



Mr. Brittin now informs me that he has been able to identify this insect \NTLth 

 Maskell' s Ctenochiton spinosus. 



Scutare fimbriata, Brittin, loc. cit., p. 158. 



I should refer this insect to the genus RhizococcKS. The author describes a 



" puparium," but I have failed to find (in specimens received from him) anything 



that can be compared to a true puparium. The dorsum of the insect has a very thin 



coating of translucent wax which gives it a pruinose appearance, and in the early 



(C250) d2 



