THE SCALE INSECT GENUS ASTEROLECANTUM 7)\ 



yellow, semitransparent, thin; marginal and dorsal filaments whitish, the . 



scattered and shorter than marginal : elliptical larval exit in margin. 



Adult female. — Nearly circular, posterior end slightly produced; 0.8-0.9 mm. 

 in diameter. 



Margin : 8-shaped pores in a single row continued across apex of abdomen 

 between apical setae, individual pores measuring 9 y. long and 6 wide, one to 

 three times (usually twice) a pore's length apart. 



Dorsal surface : 8-shaped pores scattered, present or absent at posterior end. 

 a few 5 fi long and 3 wide, majority 8 \x long and 5 wide : minute 8-shaped pores 

 absent ; disk pores fairly numerous : tubular ducts 26-28 n long. 



Ventral surface: Antenna short, with 2 setae slightly longer than diameter 

 of antenna: beak with 3 pairs of setae near tip: spiracular bar expanded at 

 inner end : with or without a group of 5 or 6 quinquelocular pores outside spiracu- 

 lar opening, in either case 22-36 quinquelocular pores between spiracle and body 

 margin in a row which is double near spiracle and 6 or 8 pores wide near margin ; 

 multilobular pores, totaling 4-9. in 2 or 3 rows of 1^ pores each, having 5-8 

 (usually 5) loculi; a loose group of 5-7 dark-rimmed 8-shaped pores each side 

 of mouth parts and some arranged in 2 rather indefinite transverse rows posterior 

 to beak : submarginal 8-shaped pores in a single row terminating near anterior 

 row of multilobular pores, somewhat less numerous than marginal 8-shaped pores : 

 submarginal setae in a complete row terminating nearly length of apical seta 

 from bases of apical setae: 2 pairs of setae in posterior row of multilocular 

 pores, 1 pair in anterior row. 1 pair anterior to those, and 1 pair anterior to the 

 last-mentioned pair. 



Apex of abdomen: Setae, apical 20-22 u long, interapical 1.5-3.5 u long, outer 

 ventral 2 u long: anal opening ventral, rather close to body margin, nearly 

 circular, its margin slightly sclerotized. with 2 setae, each about 1 a long, on 

 anterior edge. 



Larval— Nearly elliptical, posterior end slightly narrowed. 



Margin : With 16-24 8-shaped pores, the posterior pair usually slightly larger 

 than anterior, distinctly larger than the others, and sometimes seeming to belong 

 with dorsal lateral rather than marginal pores : axes of the posterior 4 or 5 

 pairs of pores sometimes somewhat diagonal, but usually axes of all longitudinal: 



2 pairs of setae anteriorly. 



Dorsal surface : 8-shaped pores, totaling 26-34. in a submedian row of 4-7 and 

 a lateral row of 7-11 i usually 9 or 10 I. on each half of body, the anterior 2 lateral 

 pores sometimes seeming to belong in an intermediate rather than in a lateral 

 row. slightly larger than posterior marginal pores: disk pores near lateral 

 8-shaped pores: a pair of minute setae often present near anterior pair of sub- 

 median 8-shaped pores. 



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

 stout. 2 slender: antennal bases one-third length of antenna apart: beak with 



3 pairs of setae near tip: anterior spiracle with 1 trilocular and 1 quinquelocular. 

 posterior spiracle with 1 trilocular. pore: leg setae, coxa 3. femur 1 on inner 

 margin near base, tarsus 1 each on inner and outer margins; tibia one-third as 

 long as tarsus: s pairs of submarginal 8-shaped pores, of which 1 pair is between 

 the antennae: 7 pairs of submarginal minute setae posterior to posterior spira- 

 cles. 1 pair of submarginal slightly larger setae anteriorly: 2 pairs of setae 

 between antennae and mouth parts. 



Apex of abdomen : Setae, apical about 80 n long, interapical about 4..". u long, 

 outer ventral 2.5 n long: anal opening in margin: anal tube membranous and so 

 short that ventral side of anal ring is almost on surface: anal ring sclerotized, 

 with 2 setae about 7.2 y long. 



Data. — Described from unmounted specimens (paratypes) and the 

 following mounted material on Quercus: Five females on Q. &uber, 

 San Felice. Italy. 1915. U. S. X. H.. holotype and paratypes; 3 females 

 and 3 larvae on Q. Kwrmlis, Cape Spartef. Morocco. T. Williams. L889, 

 U. S. X. H.. paratypes: 2 females on Q. <■< ms, Hungary, L892, X. Y. B. 

 G.. paratypes: 2 females and 40 larvae on Q. aegilops, Melissiatika and 

 Xea Ankhialos. Greece, from J. Koroneos, paratypes. 



This specie- resembles repwgncms and roboris, but can be separated 

 from them, as well as from other species inhabiting oak. by the presence 

 of marginal 8-shaped pores between the apical setae. The larvae are 

 unusual in having a variable number of marginal 8-shaped pores. 



