202 MISC. PUBLICATION 42 4, TJ. S. DEPT. OF AGRICULTURE 



chinae, however, in lacking dorsal 8-shaped pores, and from fusum 

 in having the marginal 8-shaped pores terminating very near the 

 apical setae and in having 80, instead of 34 to 40, multilocular pores. 



Asterolecanium subventruosum, new species 



(Fig. 69, F-Jj fig. 70, A; pi. 7, I) 



EaUt. — Living on bark, in shallow pits. 



Test of female. — Nearly circular, 1.25-1.5 mm. in diameter; slightly convex 

 or nearly flat dorsally, with faint transverse striations ; convex ventrally ; brown- 

 ish or clear yellow/ transparent, slightly rough ; marginal filaments whitish ; 

 dorsal filaments not observed ; elliptical larval exit in margin. 



Adult female. — Nearly circular, around 1.25 mm. in diameter. 



Margin : 8-shaped pores mostly in a double row but posterior 2-10 pores some- 

 times in a single row, terminating about one-half length of an apical seta from 

 bases of setae, the posterior pores and a few others 9 m long and 6 wide, the 

 majority 12 m long and 8 wide, the pores usually spaced about a pore's length 

 from each other, the rows usually a pore's width apart ; quinquelocular pores in 

 a single row terminating near the third 8-shaped pore from end of row, slightly 

 less numerous than corresponding 8-shaped pores of nearer row at end of row, 

 slightly more numerous than 8-shaped pores elsewhere; disk pores dorsad of, and 

 much less numerous than, the 8-shaped pores, also occurring entad of quinque- 

 locular pores, and terminating anterior to bases of apical setae, more numerous 

 than those dorsad of 8-shaped pores. 



Dorsal surface : 8-shaped pores scattered except close to margin and posterior 

 end, fairly numerous, 8 [i long and 5 wide ; minute 8-shaped and disk pores rather 

 numerous : tubular ducts 28 m long. 



Ventral surface : Antenna sharply conical, its apex spinelike, with 2 setae 

 shorter than, and 1 as long as, diameter of antenna; 3-5 quinquelocular pores 

 between antenna and margin ; beak with 1 pair of setae ; spiracular bar subcircu- 

 lar; 12-15 quinquelocular pores extending from spiracle to body margin in a 

 single row; multilocular pores, totaling 100-112 and with 9 or 10 loculi, in 5 

 complete and 5 interrupted rows (posterior 3 interrupted rows with 1 or 2 pores 

 missing in median area), the anterior row anterior to posterior spiracles, pos- 

 terior row with 10 pores, each of next 3 rows with 15-21, each of next 4 with 

 6-10, anterior row apparently with 5 or 6 ; 1 dark-rimmed 8-shaped pore each side 

 of mouth parts, a few scattered on anterior end, and a few tending toward 

 arrangement in 3 or 4 transverse rows posterior to beak ; submarginal 8-shaped 

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

 about half as numerous as corresponding marginal 8-shaped pores of nearer row ; 

 submarginal setae in a complete row terminating near the posterior pair of mar- 

 ginal 8-shaped pores ; 2 pairs of setae in the posterior row of multilocular pores 

 and 1 pair in the penultimate row. 



Apex of abdomen : Notch shallow ; lobes barely indicated ; setae, apical 58 fi 

 long, interapical 5.4 fi long, inner ventral 5.4 m long, outer ventral 9 ii long ; anal 

 ring with 6 setae 25 /m long and with an inner row of 6 and an outer row of 

 apparently 12 pores, divided on dorsal and ventral sides; ventral surface of apex 

 sclerotized in dentate rows. 



Larva. — Nearly elliptical, posterior end narrowed. 



Margin: With 28 8-shaped pores, the posterior 5 or 6 pairs smaller than the 

 others, the anterior pair largest, axes of the posterior 6 pairs transverse, of the 

 others longitudinal ; 2 pairs of setae at anterior end. 



Dorsal surface : 8-shaped pores, totaling 9-11 in the specimens examined, in a 

 submedian row of 2-4 and a lateral row of 1 or 2, on each half of body, nearly as 

 large as posterior marginal 8-shaped pores; disk pores nearer marginal than 

 lateral 8-shaped pores, and near submedian pores. 



Ventral surface: Antennal setae, I, 0; IV, 1; V, 0: VI, 2 long, 2 stout, 2 fairly 

 stout; antennal bases about one-third length of antenna apart; beak setae, 2 

 pairs apical, 1 pair basal ; spiracle with 1 trilocular and 1 quinquelocular pore : 

 leg setae, coxa 3, femur 1 on inner margin near base and 1 on outer margin near 

 center, tarsus 1 each on inner and outer margins; tibia one-half as long as 

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

 setae, 6 of which are on the abdomen and 1 at the anterior end ; 2 pairs of setae 

 between antennae and mouth parts. 





