THE SCALE INSECT GENUS ASTBROLECANIDM 197 



area around inner ventral setae, surrounding area slightly sclerotized in dentate 

 rows. 



Larva, — Elongate elliptical. 



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

 the rest, and with their axes transverse, axes of others longitudinal: a pair of 

 minute setae close to each of the posterior 3 pairs; 4 pairs of setae at anterior 

 end. 



Dorsal surface : 8-shaped pores in a submediau row of 10 on each half of 

 body, larger than marginal pores of same segments; disk pores near marginal 

 8-sliaped pores and fairly near a few of the submedian pores; a pair of minute 

 setae near anterior pair of 8-shaped pores. 



Ventral surface : Antennal setae, I, 2 ; IV, 1 ; V, 1 stout and sometimes 1 

 slender; VI, 2 long, 2 stout, 3 fairly stout, 2 slender; antennal bases one-sixth 

 length of antenna apart ; beak setae, 2 pairs apical, 1 pair basal ; spiracle usually 

 with 1 trilocular and 1 quinquelocular pore but occasionally 2 trilocular pores; 

 leg setae, coxa 4. femur 1 on inner margin near base and 1 each on inner and 

 outer margins near center, tarsus 2 on inner and 1 on outer margin ; tibia about 

 two-thirds as long as tarsus ; 7 pairs of submarginal 8-shaped pores, none between 

 antennae; 11 pairs of submarginal minute setae, on abdomen, thorax, and head; 

 3 pairs of setae between antennae and mouth parts. 



Apex of abdomen : Setae, apical 125 n long, interapical 23.4-30 fi long, dorsal 

 5.4 /x. long, inner ventral 7.2 ix long, intermediate ventral 9 /j. long, outer 

 ventral (close to intermediate, not anterior to apical) 7.2 fx long; anal ring with 

 6 setae 27-28.8 y. long and with about 20 pores, apparently not divided ; ventral 

 surface of apex sometimes slightly sclerotized around inner ventral setae. 



Data. — Redescribed from the following material : Unmounted speci- 

 mens, 7 mounted females, and 11 mounted larvae from Asclepias fntc- 

 ticosa,, Pretoria, Transvaal, C. P. Lounsbury, September 20, 1914, Brain 

 Xo. 16; 1 mounted female from Huernia tramvaalensis, Pretoria, 

 Transvaal, S. Stent, July 8, 1916, Brain Xo. 29, paratype ; 7 mounted 

 females from OaraUwma eaudata, Pretoria, Transvaal, S. Stent, July 8, 

 1916, Brain Xo. 29. type and paratypes; 1 mounted female from Stape- 

 lia kavirrondo, Kenya, intercepted at Washington, D. C, L. L. Spes- 

 sard, March 28, 1935 ; 1 mounted female from Huemia sp., Bushman 

 Land, Cape Province, intercepted at Washington, D. C., J. M. R. 

 Adams, June 3, 1935 ; 1 mounted female and 2 mounted larvae from 

 CaraUuma sp., South Africa, intercepted at San Francisco, Calif.. 

 September 15, 1936; 4 mounted females from Hoodia sp. and 2 

 mounted females from Huemia bicampanidata. South Africa, inter- 

 cepted at San Francisco, Calif., A. C. Dennett, September 15, 1936. 



Asteroleeanium stentae is very closely related to arabidis. However, 

 the multilocular pores of stentae usually are much less numerous, are 

 arranged differently, and have fewer loculi than those of arabidis. 

 Another difference between the two is the greater number of dark- 

 rimmed 8-shaped pores and their conspicuous arrangement in several 

 transverse rows in arabidis. The arrangement of the submarginal 

 8-shaped pores is also different in the two. In arabidis they occur in 

 groups within the row, and occupy a comparatively narrow space. 

 whereas in stentae they are spaced uniformly and spread out toward 

 the center of the body. At the apex of the abdomen all the setae 

 usually are conspicuously longer in arabidis than in stentae, and the 

 outer ventral setae are nearly anterior to the apical in the former but 

 are virtually anterior to the interapical in the latter. Larvae of these 

 species are nearly identical, but the dorsal 8-shaped pores in stentae 

 are slightly larger in comparison to the marginal pores than in arabidis. 

 The species also is allied to algeriense, launeae, and nevad* 



