1903] COCKERELL: — EULECANIUM 1 9 



SOME SPECIES OF EULECANIUM (COCCIDAE) FROM FRANCE. 



BY T, D. A. COCKERELL, EAST LAS VEGAS, N. MEX. 



Dr. P. Marchal has sent me five species of Eulecanium collected in France. 

 It might be supposed that these insects, coming from such a country, would be 

 easily referred to well-known species ; but as a matter of fact their identification has 

 given me much trouble. Judging them by the standards of specific distinction laid 

 down by Signoret, they could all be regarded as new to science. However, it is 

 now generally admitted that Signoret over-divided his species, and an extreme view 

 in the opposite direction is held by Mr. R. Newstead, who writes me that in his 

 opinion Lecaiiiiini capreae, generense^ ^nd f/iscii7?i (at least as understood in England) 

 are one species; and further, that L. persicae, rosaruin, and sarothamni are also one. 

 This surprising union of species hitherto regarded as distinct must be taken seri- 

 ously, for Mr. Newstead has gone over the ground very carefully, and would not 

 make such a statement without excellent reasons. It was otherwise when Forster 

 proposed to unite the whole series of Eulecanium under the specific name vaga- 

 bundiim. 



The measurements of antennae and legs in this paper are all in micromillime- 

 ters. The paper is based wholly on females. The tarsus is always measured 

 without the claw. 



Eulecanium magnoliarum Ckll. var. hortensiae, var. nov. ■ 

 On Hortensia (/. e. Hydrangea) ; Nice, July, 1S99. (Marchal No. 7.) 



Rather light ferruginous, elongated, with a strong and sharp dorsal keel (in dried 

 examples) ; surface rugose and tuberculate. The scales appear to have been variegated with 

 black and yellow when alive. 



Scales crowded, overlapping; long. 5J, lat. 3, alt. about i.^ mm. 



Legs: femur and trochanter, iSo; tibia, 120; tarsus, 93. I-egs not as described for 

 I^. berberidis. ^ 



Antennae S-jointed, 3 and 4 very variable; three antennae measured thus : 



Joints: (I.) (2.) (3.) (4.) (5.) (6.) (7.) (8.) 



45- 52- 45- 75- 45- 33- 30- 42- 



.? 45. 60. 66. 42. 27. 24. 35. 



? 42. 65. 57. , 48. 27. 27. 45. 



1 Externally, the Lecanium berberidis of Beriese and Leonard! (Cherm. Ital.) is very like E. hortensiae, having the 

 same shape, same keel, and pustulated surface. It differs from E . hortensiae in being larger, much redder, and without 

 the black or blackish marbling. I doubt its identity with the true L. berberidis. 



