1903] COCKERELL : — EULECANIUM 2 I 



This is near to E. genrcense, and is provisionally regarded as a variety of it, 

 hwt genevense^ and also the forms said by Mr. Newstead to be identical with it, are 

 always described as having 6-jointed antennae. 



The 7-jointed antenna is of the general type of E. mailuranim, but the tliird 

 joint is much too short. The 8-jointed antenna is not unlike the E. rosarum of 

 King and Reh, which I feel persuaded is not the true E. rosarum. The 7-jointed 

 antenna is not at all like the 7-jointed form of the King and Reh E. rosarum. 



EuLECANiUM ALNi var. RUFULUM, var. nov. 



Dr. Marchal sent two lots, one on Carpinus, La Vienne, France, July 25, 

 1896; the other marked '' Lecanium querais, Department de la Vienne, France,*' 

 June 6, 1896. 



Rather small, light ferruginous, convex, not shiny : not keeled, nor punctured. Long. 

 3^4, lat. 2^-3, alt. i|-2 mm. 



Legs: femur + trochanter, 126-135 ; tibia, S4-96 ; tarsus, 60-69. The legs and antennae 

 are very slender; width of femur, 30-33 ; width of tibia, 12-15. 



Antennae 7-jointed, varying to 6 and S. Measurements of four antennae : 



Joints: (I.) (2.) (3.) (4.) (5.) (6.) (7-) (S.) 



30- — 



15. 24. 



It will be observed that the third joint always remains very long, even in the 

 8-jointed forms. The 8-jointed antennae are near those of E. rugosum, but the 

 scale is different. 



I have not seen the typical E. abii Modeer {Lecanium abii Douglas, Ent. mo. 

 mag., Sept. 1886, p. 80-81), nor did Signoret recognize it. Douglas found it at 

 Lewisham and Catford, England, on alder. The proposal to treat E. rufulum as a 

 variety of E. alni'is provisional, and depends upon a strong similarity which seems 

 to be indicated by Modeer's original (1778) description. 



EULECANIUM PRUNASTRI FonSC, Var. a. 



Marchal No. 14, on peach, at Cette, June, 1S98. 



Small and very dark, almost black, veiw convex, no longitudinal keel, sides more or less 

 malleate. Three examples measure : 



Long. 31, lat. 3^, alt. 2i mm. 



33' 325 2j 



" 2h, " 3 " i| " 



