THE CANADIAN ENTOMOLOGIST, 221 



A NEW LECANIUM FROM CANADA. 



BY T. D. A. COCKERELL, LAS CRUCES, NEW MEXICO. 



In a box of Canadian Coccidae lately sent to me by Mr. J. Fletcher, 

 there are several species of Lecanium, including one which appears to be 

 new, and is described herewith. 



Lecanium Fletcheri, n. sp. 

 Belongs to subg. Eulecanium. 



$ Scale dark reddish-brown, hemispherical, shiny, not at all elongate, 

 more or less wrinkled or with depressions ; posterior cleft short, with one 

 or two filaments of white secretion protuding from it. Length, 2 two- 

 thirds mm., breadth nearly the same ; height, ij4 mm. (apex depressed). 



Derm yellowish-brown (prepared by boiling in caustic soda); distinctly 

 reticulate, reticulations mostly hexagonal and pentagonal. Gland pits 

 distinct towards the margin, numerous, large, sometimes in pairs. Mar- 

 gin with short simple spines, not very numerous. 



Legs very small, ordinary ; femur ionger than tibia ; tibia about % 

 longer than tarsus. Tarsal knobbed hairs very long and slender, with 

 distinct though small knobs. 



Antennae 7-jointed ; 1 longer than broad, 2 shorter than 1 or 3, 3 and 

 4 about equal, hardly equal to 1 ; 5 and 6 equal, and much shortest; 7 

 about or nearly as long as 5 + 6, and about as long as 2, or a little 

 shorter. Formula 1 (34) (27) (56). The seventh joint has a false joint 

 about its middle, which in one antenna was so distinct that it was difficult 

 not to believe it a true joint. First joint with a long hair, second with 

 two hairs, 4 and 5 each with a hair, 6 with two, 7 with three distinct hairs. 



Larva : Of the usual shape, pale-yellowish ; caudal filaments nearly 

 straight but with an outward curve, the ends usually bending inwards and 

 crossing. Each side of the abdomen with 7 short hairs. Last joint of 

 antennae emitting four long hairs. Legs with clubbed digitules about twice 

 as long as the claw, and long tarsal clubbed hairs. 



Food-plant : The specimens are labelled, " on Thuja, ' cedar.' " 



Hab. : No. locality is given by Mr. Fletcher; very probably the speci- 

 mens were on a cultivated tree at Ottawa. 



L. Fletcheri differs decidedly from any species hitherto found on 

 coniferous plant*,, and seems most nearly aliied to L. quercifrouis, which 

 it much resembles. Mr. Fletcher sent me some scales on Quercus Coccinea 

 which I believe to be L. quercitronis, Fitch. L. Fletcheri, compared with 

 these, is shorter and more globose, and the posterior cleft is decidedly shorter. 



