THE SCALE INSECT GENUS ASTEROLECANIUM 125 



end; 10-23 (usually around 16) quinquelocular pores extending from spiracle 



to body margin in an irregularly single or double row: multilocular p< 

 totaling 26-33 and having 10 loculi. arranged in 4 complete and 2 or 3 u 

 runted rows, each of the posterior 3 rows with 5-9 pores, anterior com] 



row with 4-0. and each of interrupted rows with 2: approximately 20 dark- 

 rimmed 8-shaped pores in a loose row surrounding mouth parts, and 8 or 10 

 posterior to beak in rather indefinite transverse rows: submarginal 8->haped 

 pores in a single row terminating near the posterior row of multilocular pores, 

 nearly as numerous as marginal 8-shaped pores; submarginal setae in a com- 

 plete'row terminating near the penultimate pair of marginal 8-shaped pores: 

 2 pairs of setae in the posterior row of multilocular pores. 1 pair in each of 

 the other complete rows, and 2 in posterior interrupted row. 



Apex of abdomen: Lobes indicated on ventral surface close to margin: setae, 

 apical 4S a long, interapical 4-5 u long, outer ventral 4-5 /u long: anal opening 

 ventral, fairly well removed from body margin, nearly circular, its margin 

 sclerotized. 2 setae 2.5-3 n long on anterior edge. 



Second stage. — Much smaller than adult and elliptical in outline: margin 

 apparently with 5 or 6 quinquelocular pores: dorsal surface with a few very 

 large 8-shaped pores: ventral surface with 2 or 3 pores in each spiracular row. 

 with 4 dark-rimmed 8-shaped pores, and with 2 setae in median abdominal 

 area: apex of abdomen apparently as in adult, but with shorter setae. 



Larva.- — Somewhat ovoid, posterior end rather pointed. 



Margin: With 28 8-shaped pores, the posterior ones slightly smaller than 

 others, axes of all longitudinal: 2 pairs of setae anteriorly. 



Dorsal surface: 8-shaped pores, totaling 29-39, in a submedian row of 5-10 

 and a lateral row of 9-11. on each half of body, the anterior pores of each row 

 usually slightly larger than posterior ones, submedian pores slightly smaller, 

 and lateral pores slightly larger, than marginal pores of same segments: disk 

 pores between submedian and lateral, and between lateral and marginal, 8-shaped 

 pores. 



Ventral surface : Antennal 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 with 

 2 pairs of setae at tip: spiracle with 1 trilocular and 1 quincptelocular 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: 9 pairs of submarginal 8-shaped 

 pores: 7 pairs of submarginal minute setae on abdomen. 1 pair of submarginal 

 iarger setae at anterior end : 2 pairs of setae between antennae and mouth parts. 



Apex of abdomen : Notch minute ; lobes indicated : setae, apical 50 /i long, 

 interapical 5 /x long, outer ventral 3 is long: anal opening in margin: anal tube 

 very short, sclerotized: anal ring a sclerotized Viand almost on surface, with 

 2 setae, each about 3 m long. 



Data. — Described from the following material: Empty te>ts and 5 

 mounted females on Quercus serrate^ Japan. 1893, U. S. X. H.. holo- 

 type and paratypes: unmounted material. 10 mounted female-. 2 

 mounted second-stage specimens, and 5 mounted larvae on Quercus 

 sp.. Chestnut Hill. Philadelphia, Pa.. R. G. Pierce. November 1915, 

 paratypes. 



Although this species resemble^ adjumehun^ it differs from that 

 species in several respects, the most conspicuous of which are its shape. 

 the absence of a sclerotized tongue-shaped projection from each mar- 

 ginal 8-shaped pore, and the size and arrangement of the dorsal 

 8-shaped pores. 



ASTEROLECANIUM MACHILI, 11CW Species 

 (Fig. 39, L-R; pi. 7. H) 



Habit. — Living on bark, in pits. 



Test of female. — Longer than wide or nearly circular, 1.6-1.9 mm. long and 

 1.3-1.5 wide, or about 1.5 mm. in diameter: slightly convex dorsaily, with faint 

 transverse striations : convex ventrally : greenish yellow, transparent, thin, fairly 

 shiny, punctate; marginal filaments whitish: elliptical larval exit in margin. 



