510 QUEENSLAND AGRICULTURAL JOURNAL, {1 June, 1898. 
(IX.) Howard (L. O.)—“On some Scale Insects.” Trans. Massachusetts Hort. 
Soc., 1896, pp. 84-94. Boston, 1896. 
(X.) Howard (L. 0.) and Marlatt (C. L.)—* The San José Scale, its occurrences in 
the United States,” &c. Bull. 3, N.S., U.S. Dep. Agr. Div. of Ent. 
Washington, 1896. 
(XI.) Smith (John B., Sc. D.}—‘ Report of Investigations on the San José or 
Pernicious Scale.” Report Hnt. Dept. New Jersey Agr. Col. Exp. Stat. 
for 1896, pp. 463-563. ‘Trenton, N.J., 1897. 
(XIL.) Smith (John B., Sc. D.)—‘ San José Scale (Aspidiotus perniciosus).” Report 
Ent. Dep. New Jersey Agri. Col. Exp. Stat. for 1897. Trenton, N.J., 1898, 
(XIIL) Cockerell (1. D. A.)— The San José Seale and its Nearest Allies.” ‘Techn, 
Series 6, Divis. of Entom. U.S. Dep. of Agr., Washington, 1897. 
© (XIV.) Webster (P. M.)—“The San José Scale in Ohio.” Bull. 81, Ohio. Agr. Exp. 
Stat. Ohio, 1897. 
(XV.) Smith (John B., Sc. D.)—“The San José Scale and How it may be Con- 
trolled.” Bull. 25, New Jersey Agr. Exp. Stat. ‘Trenton, N.J., 1897. 
(XVI.) Hunter (8. J.)—Scale Insects Injurious to Orchards.” Bull., Dep. of 
' 
Agr. University of Kansas. ‘Topeka, 1898. 
Descrierion or Prares. 
Prats XL.—(From Photographs by F. C. Wills, Artist to Department of Agriculture.) 
Fig, 1. Apple-tree bark free from San José Scale. Natural size. 
re) 
. Apple-tree bark infested by San José Scale. Natural size. 
. Apple-tree bark infested by San José Scale. As seen when magnified three times linear, 
. Peach-tree bark infested by San José Scale. As seen when magnified three times linear, 
. Peach-tree bark—young shoot infested by San José Scale, showing male scales, &c. As 
seen when magnified six times linear. 
6 and7. San José Scale (?) on bark of Eucalyptus sp. (from specimens furnished by 
C. French), As seen when magnified one and three-fifth times linear. 
ou de Oo bo 
Prare XLI.—(With the exception of Figs. 1, 4, and 12—drawn by F. C. Wills—from 
rey 
publications of Division of Entomology, U.S. Department of Agriculture, and 
representing in each case the objects specified more or less highly magnified.) 
. 1, Female Scale: a, central area or ‘‘ exuvie.” 
2. Adult female, as seen from beneath, before development of eggs: a, proboscis or sucking 
tube, composed of 4 applied sete or hairs. 
3. Hinder extremity or anal segment of adult female, showing characteristic ‘‘ fringe” : 
a, central lobes. (Mote.—The “‘ plates” or “squames” are not shown.) 
4, Male Scale: a, central area or‘ exuvire.” j 
5. Larva, or recently born insect: a, its hind foot; b, its proboscis or sucking tube. 
6. Larva recently attached. - 
7. Bante insect already covered by secreted matter: a, as seen from above; 6, as seen from 
elow. ' i : 
8..The same somewhat older : a and 8, as in Fig. 7.” : 
9. Male immature insect after first moult, as seen from beneath. 
10. Male immature insect after second moult, or pupa, as seen from beneath, 
jl. Adult male insect after having left male scale (Fig. 4): a, its genital spike. 
12. Eye of apple, with San José Seale occurring therein, 
