INSECTS INJURIOUS TO THE BLACK WALNUT. 335 
22. Aspxdisca juglandiella Chambers. 
The larva lives in a very small blotch-mine, from which it cuts out a 
^ase in which it pupates. 
23. The red-tailed attelabus. 
Attelabu8 analis Weber. 
Order Coleoptera ; family Curculionid^:. 
Rolling up the leaves of the oak and black walnut, a weevil a quarter of an inch 
long, with a long, slender, cylindrical head and short, broad, thick body. The 
autennae, legs, and middle of the breast deep blue-black; the thorax, wing-covers, 
and abdomen dull red ; the wing covers, taken together, nearly square and pitted in 
rows. 
According to Harris, this pretty weevil is found on the leaves of oak 
trees in June and July. Mr. George Hunt has observed it on the wal- 
nut in May before the buds open, at Providence. It is possible that 
Fig. 65, p. 204, represents the work of this species. 
24. Conotrachelus juglandis Le Conte. 
The larva of this weevil, which is closely allied to that of the plum 
weevil, was taken from walnuts 
at Mount Carmel, 111., by Mr. £j£ & 
Shimer. According to Harris, 
Mr. Say, in a note on the plum 
weevil, stated that his u kius- 
man, the late excellent William 
Bartram, informed him it also 
destroys the English walnut in 
this country." It is possible that ^fflp^ ^£? 
the insect here referred tO Was FlG . ]2 5.-Conotrachelus j.glandis,- a, larva; &,head 
Confounded With the plum Weevil seen in front. Gissler, del 
and belongs to the present species. 
THE ENGLISH WALNUT SCALE. 
25. Aspidiotus juglans regice Comstock. 
The following account of this insect is taken from Prof. Comstock's 
report as Entomologist iu the U. S. Agricultural Report for 1880 : 
Scale of the female. — The scale of the female is circular, flat, with the exuviae 
laterad of the center; it is of a pale grayish brown color; the exuviae are covered 
with secretion ; the position of the first skin is indicated by a prominence which is 
pink or reddish brown. The veutral scale is a mere film which adheres to the bark. 
Diameter of scale, 3 mm (.13 inch). 
Female. — The color of the female when fully grown is pale yellow with irregular 
orange-colored spots; oval setae and last segment dark yellow. This segment pre- 
sents the following characters: There are either four or five groups of spinnerets; 
the anterior group is wanting or consists of from one to four spinnerets, the anterior 
