o 



30 THE CANADIAN ENTOMOLOGIST. 



(9) A. montanus, Cr.,p, (16) A. apicipennis, Cam. 



(10) A. elegans, Cr., ? (J . (17) A. tinctipennis, Cam., ? 



(11) A. bellus, Cr.,(?. (r8) A. Kohlii, Cam.,?. 



(12) A. coeruleus, Cr.,^. (19) A. picta, Kohl, (J. 



(13) A. albovillosus, Cam., $ . (20) A. mexicana, Cr.,(J. 



(14) A. Sayi, Fox, $ . (21) A. alpestris, Cam.,?, 



(15) A. strigosa. Kohl, ? . (22) A. insularis, Cr., ? . 



TABLES FOR THE DETERMINATION OF THE GENERA 



OF COCCID^. 



BY T. D. A. COCKERELL, N. U. .\GR. EXP. STA. 



{Continued froui page 2jg.) 

 Lecaniinte. 



Secretion of $ mote or less cottony Series I. 



Secretion of P waxy, glassy, or horny Series II. 



Adult P naked, or covered only by a film of secretion Series III. 



Of course it must be understood that the expressions "glassy," 

 "horny," and "cottony," refer only to the appearance of the secretion, not 

 to its true nature. 



Series I. 



Female resembling a flat Lecanhnn., secreting an ovisac, which is 

 elongated posteriorly, but does not at all cover the insect i. 



Female surrounded by cottony secretion, but naked dorsally 4. 



Female completely or almost completely covered by a sac of cottony 

 or felted secretion 5. 



Female secreting dorsally a thick mass of white waxy threads, 

 which however do not cover the middle of the back ; round the sides 

 are threads spreading in all directions ; antennae six-jointed, 3 much 

 the longest ; legs rather slender ; tibia longer than 

 tarsus Ceronema, Mask. 



Female oval or elliptical, with a loosely felted secretion, especially in 

 the second stage, but absent or inconspicuous in the adult ; antennae 

 7-jointed : tarsus longer than tibia ; margin with a 



fringe Eriochitofi, Mask. 



I. Female triangular, ovisac very slightly developed, a mere fringe round 

 the hind margin Protopulvinaria, Ckll. 



Female oval or suboval 2. 



