180 THE COCCIDAE 



(Id. Alveolae promiscuously arranged, not in transverse rows; 

 four fringe setae, mesal setae longer than lateral and ar- 

 ranged in two rows converging cephalad. — New York on 



blackberry. obtusum Thro. 



cc. Lateral spinae always twice or more as long as marginal setae 

 of average length; alveolae promiscuously arranged; four 

 fringe setae; arranged in single transverse row. — Eastern 

 United States and Canada on Quercus quercifex Fitch. 



The species of the genus Eulecanium according to Sulc should be 

 distributed among four genera. These genera are based upon the 

 characters of the male, as follows: — 



a. Species reproducing avongenetically, males with two pairs of waxy 

 abdominal filaments. 



b. Males with six pairs of ocellanae. Eulecanium Ckll. 



bb. Males with three pairs of ocellanae. 



c. Males with wings and halteres present, with pocket for hook 



of halteres. Palaelecanium Sulc. 



cc. Males with wings and without halteres and pockets for hooks 



of halteres. Sphaerolecannim Sulc. 



aa. Species reproducing parthenogenetically, males not known 



Partlienolecanium Sulc. 



Sulc refers caprae L., douglasi Sulc, ciliatum Newst., and alni Mod. 

 to Eulecanium; bituberculatum Targ. to Palaeolecanium; prunastri Fonsc. 

 to Sphaerolecanium; and coryli Linn, and persicae Geoff, to Partheno- 

 lecanium. 



Globulicoccufs Lindiiiser. — This name was proposed by Lindinger 

 as of subgeneric rank to include Eulecanium fuscum Gmel. from Europe 

 on oak, also capreae Linn, from Europe, Nova Scotia on Salix, poplar, 

 linden, Pyrus, Prunus, etc. 



Mesolocaniiim CkIL — An American genus of thirteen species. 

 One of these, phoradendri Ckll., occurs in Arizona on Phoradendron, 

 the other species are limited to Mexico and Brazil. 



Stictolecaniuni Ckll. — This genus includes a single species, orna- 

 tum Hemp, from Brazil on Eugenia. 



Sai.ssotia Depl. — This genus contains over twenty species, several 

 of them of wide distribution. The three more important species occur- 

 ring in the United States can be separated by the following table based 

 upon the analysis of Thro: — 



SPECIES OF S.MSSETIA 



a. Fringe setae eight in number. 



b. Opercula with outer margins distinctly longer than basal mar- 

 gins, outer angle broadly rounded, fringe setae convergent toward 

 meson. — Europe, South Africa, Mauritius, Ceylon, China, Japan, 

 Australia, New Zealand, Hawaiian Islands, Brazil, Mexico, West 

 Indies, United States on orange, apple, pear, plum, olive, apricot, 

 etc. olcae Bern. 



