THE SCALE INSECT GENUS ASTEROLECANIUM 219 



multilocular pores, with 7-10 loculi, in 4 complete rows, the posterior row with 



1l'-23 pores, each of the others with 7-16 (usually 10-14), the total number 

 being 40-71 (usually 50-62) ; a loose group of 7-10 dark-rimmed 8-shaped pores 



each side of beak, some scattered on anterior end. and others tending toward 

 arrangement in 2 transverse rows posterior to beak: submarginal 8-shaped pores 



in an irregularly double row terminating near penultimate row of multilocular 

 pores, in the ratio of 1 or 2 to about 3 marginal 8-shaped pore-; submarginal 

 setae in a complete row terminating near penultimate pair of marginal 8-shaped 

 pores: 2 pairs of setae in posterior row of multilocular pores, 1 pair in each of 

 the other rows, and 1 pair before anterior row. 



Apex of abdomen: Setae, apical 36-44 n long, interapical 8-9 fi long, outer 

 ventral 7 n long; anal opening ventral, near body margin, its margin sclerotized, 

 with 2 setae, each 2-3 /* long, on anterior edge. 



Larva. — Nearly elliptical, posterior end sometimes narrowed. 



Margin: With 28 8-shaped pores, axes of all longitudinal; 2 pairs of setae at 

 anterior end. 



Dorsal surface : Normally without 8-shaped pores, but rarely with 1-3 on 

 anterior end, these as large as marginal pores ; disk pores in lateral area. 



Ventral surface : Antenna! setae. I. 1 : IV. 1 : V. : VI, 2 long. 2 stout, 2 

 fairly stout, 2 slender; antennal bases one-half length of antenna apart; beak 

 setae. 3 pairs apical: anterior spiracle with 1 trilocular or quadrilocular and 

 1 quinquelocular pore, or with 2 quinquelocular pores, posterior spiracle with 

 1 quinquelocular pore; leg setae, coxa 3, femur 1 on inner margin near base, 

 tarsus 1 each on inner and outer margins; tibia one-fourth as long as tarsus: 

 9 pairs of submarginal 8-shaped pores; 7 pairs of submarginal minute setae 

 on abdomen, 1 pair of submarginal larger setae at anterior end ; 2 pairs of setae 

 between antennae and mouth parts. 



Apex of abdomen: Setae, apical 64 /x long, interapical 12 n long, outer ventral 

 6-8 Li long ; anal opening apical : anal tube very short : anal ring with 2 setae 

 about 7.2 n long. 



Data. — Redescribed from unmounted material and more than 100 

 mounted females and many mounted larvae from the following 

 sources (all collected on Quercus) : Q. slderoxyla. England, R. New- 

 stead; Europe, Maskell Collection No. 65; Botanic Garden. Sydney. 

 New South Wales, W. W. Froggatt No. 18; West Australia, G. Com- 

 pere No. 33; Q. robur, Breslau, Silesia, Germany, C. Baenitz, U. S. 

 N. H. ; Q. pediinculata. Vienna, Austria, labeled quercicola det. Low, 

 loaned by M. Beier; white oak, August 8, 1878; D. C, T. Pergande, 

 November 22, 1879; Q. sideraxyla, November 22, 1879; Q. rolur, 

 November 22, 1879; Department of Agriculture Grounds, Washington, 

 D. C, December 18. 1880: Smithsonian Grounds. Washington. D. C, 

 N. L. Britton, September 24. 1885: Ridgewood, N. J.. A. S. Fuller, 

 April 4, 1893; Washington, D. C. F. C. Pratt. May 15, 1894: white 

 oak, Washington. D. C, May 15. 1894; Q. pedunoulata, near Prague, 

 Czechoslovakia, K. Sulc. April 3. 1894; Geneva. N. Y.. S. H. ver Plank. 

 July 12, 1895; golden oak. Worcester, Mass.. November 2, 1896; De- 

 partment of Agriculture Grounds. Washing-ton. D. C, C. L. Marlatt, 

 November 11, 1898: Carthage, Mol. July 9, 1899: Ottawa. Canada. J. 

 Fletcher. August 1900: Philadelphia. Pa., January 21, 1005: Q. con- 

 cordki. Dreshertown, Pa.. S. N. Baxter. June 2. 1905: Department of 

 Agriculture Grounds. Washington, D. C, C. Popenoe, September 10. 

 1907: Washington, D. C, E. R. Sasscer, July 19, 1910; golden oak, 

 Overbrook, Pa., F. Windle, September 1911: Q. pedwnculata, Stock- 

 ton, Calif.. F. Maskew, August 1913: Funchal, Madeira, C. H. Gable. 

 May 7. 1915; Washington, D. C. S. Keen. August 25, 191!); Q. peduncu- 

 lata, in Herbarium at Novocherkassk. Russia, 1920, collection locality 

 unknown: Wheeling, W. Va.. E. J. Spaeth. October 7. 1921; Depart- 

 ment of Agriculture Grounds, Washington, D. C W. B. Wood. March 

 8. 1922: England, intercepted at Washington, D. C W. B. Wood, 



