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COCCIDAE OF OHIO. 
Immature stage: Length 3mm.; width, 2mm. Completely coy- 
ered above by four series of waxy lamellae. The two median series 
consist of eleven short thick lamellae; the 11th pair being very small 
and the anterior pair protruding forward over the head in a bilobed 
manner. The first four lateral lamellae are similar to those of the 
adult, the fifth and sixth pairs are short, the apparently fused seventh 
and eighth are again longer, giving the insect a rectangular appear- 
ance. The ninth lamellae from either side are fused, forming a single 
long lamella projecting posteriorly on the median line. 
On the ventral surface are 12 short, broad, subequal lamellae on 
each side around the margin of the body, and the entire surface has 
an armadillo appearance on account of the short plate-like lamellae. 
This stage has 7-jointed antennae. Formula:—7, 3, 2, 4, (5,1) 6. (1) 
Kem) sie (eo) 20. (4) Sis (br Ts UO) 722 (7) L441. The distal halt of 
the eighth joint is black. 
Larval stage: With 6-jointed antennae and two series of large, 
cottony lamellae on the dorsal surface. 
Remarks: The author has found only five adults. near Port 
Clinton, Ottawa Co., O., July 5, 1903. The immature forms have 
been collected at Port Clinton, Columbus and Georgesville. 
Subfamily DACTYLOPIINAE. 
This subfamily is represented in Ohio by six genera of more 
_or less economic importanee, viz., Asterolecanium, Kermes, Gossy- 
paria, Hriecoccus, Phenacoccus and Pseudococcus. The only 
species which have as yet any economic importance in Ohio, are 
the ‘‘Mealy-bugs,’’ Pseudococcus citri and P. longispinus. 
ASTEROLECANIUM VARIOLOSUM (Ratz.) 
Found on Quercus aurea, at Mentor, Lake Co., O., by Prof. 
Wilmon Newell, Feb. 7, 1900. This seale is of very little impor- 
tance, as far as known in Ohio. 
Genus KERMES Boitard. 
Globular or reniform Coecids appearing like galls and al- 
ways found on Oaks; rather large, varying from 3—10 mm. in 
diameter; segmentation obscure or revealed by dark bands, or 
by rows of dark spots on both. Anal ring without hairs in adult. 
Larvae are long-elliptical with a plainiv segmented abdomen, 
which is usually deeply cleft at the posterior extremity, forming 
two anal lobes whieh bear each a lone hair and one or more 
shorter ones. Anal rine with six hairs and body fringed with 
