1899.] NATURAL SCIENCES OF PHILADELPHIA. 261 



incarnatis. Antennae vix corporis J partem adtingunt. Rostrum 

 inflexum. Anus retusa, vix villosa." This should be easily iden- 

 tified when collected again in Sweden ; most likely it is a Bipersia. 

 The insect seen by Geoffi-oy was possibly not the same, as he says 

 it is " un peu couleur de chair." Lichtenstein suggested that 

 phalarldis might well be the Coccus radicum-graminis Fonsc, for 

 which he proposed the generic name Fonscolombia. 



Coccus Signoret will stand as Pseudococcus Westwood (not Pseu- 

 dococcus Sign., which is Phenacocciis Ckll.). 



Coccus adonidum Gmelin. 



There is no such thing as Dactylopius adonidum Linne', In the 

 early editions of the Fauna Suecica Linnd had a Pedieulus adoni- 

 dum, but finding out that it was not a Pedieulus, and apparently 

 not knowing what to do with it, he omitted it altogether from the 

 Syst. Nat., ed. x, from Avhich our nomenclature starts. I also fail 

 to find any trace of it in the twelfth edition, but in Gmelin' s 

 edition Coccus adonidum appears with a description. The descrip- 

 tion, however, refers to a longitudinal dorsal elevated line, and 

 other characters which belong evidently to some Orthezia ! 



GeofFroy's " Coccus adonidum corpore roseo, farinaceo, alls 

 setisque niveis," is, on the other hand, &\'n\Qut\y o, Dactylopius, but 

 his name is not a binomial. 



Dactylopius adonidum must therefore disappear from our lists. 



Coccus cacti Linno. 



Syst. Nat., Ed. x, 1758. 



Some of the works cited by Linne (e. g., Re'aumur) relate to 

 the true cochineal insect; but the whole of the Linnean description 

 pertains to a Mouophla?bid! The specimens described were col- 

 lected in the island of St. Eustache by Daniel Rolauder, and sent 

 alive to Upsala in 1756. At the same time Rolauder sent a num- 

 ber iu alcohol to DeGeer, who (3Iem., Vol. vi, p. 449) gave a full 

 account of them, with a figure. The alcoholic specimens were 

 yellow ochre or pale rose ; Linne, having seen them alive, says the 

 abdomen is purplish. The antennse and legs are black; antennae 

 11 -segmented; mouth parts present. The shape is long oval, like 

 Llaveia or Ortonia. Linne says nothing about any ovisac, or 

 cottony covering, so it was doubtless absent. 



This species seems not to be identical with anything known to 



