Feb., 1903 .] Three New Scale Insects from Ohio. 
95 
(5 ) I 50 < (6) 140, (7) 135, (8) 180. Legs large and strong, rather spin}' with 
femur and tibia of almost exactly equal length and with tarsus more than 
half the length of the tibia ; large claw with three or four denticles and a 
pair of short flattened digitules. The body is thickly covered with tubules 
about 20/X long, and small derm-orifices. The anal ring is elliptical, bearing 
six hairs and a narrow chitinous band on each side of the orifice, and is 
thickly dotted. 
Immature stage: Length, 3mm.; width, 2mm. Completely covered 
above by four series of waxy lamellae. The two median series consist of 
eleven short thick lamellae ; the nth 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 5th and 6th pairs are 
short, and the apparently fused 7th and Sth are again longer, giving the 
insect a rectangular appearance. The 9th lamellae from either side are fused, 
forming a single long lamella projecting posteriorly on the median line. 
On the ventral siirface there are 12 short, broad subequal lamellae on each 
side around the margin of the bod}', 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, i, ) 6. (i) 75, (2) 87, (3) 120, 
(4) 81, '(5) 75, (6) 72, (7) 141. The distal half of the Sth joint is black. 
Larvat stage : With 6-jointed antennae and two series of large cottony 
lamellae on the dorsal surface. 
Remarks : The author has fouud only five adults, near Port 
Clinton, Ottawa county, Ohio, July 5, 1903. The immature forms 
have been collected at Port Clinton, Columbus and Georgesville. 
Concerning this species. Prof. Cockerell says : " Orthezia soli- 
daginis is no doubt part of what has been called ' amcricana but 
since ' amcrkana ’ was never properly described, it is all right to 
give a name to 5’our insect. The species one first thinks of com- 
paring it with are O. urticae (which might have been introduced 
from Europe ) and O. graminis (which gets as far East as Kansas). 
O. solidaginis differs superficial!}' from both ; from iniicae by the 
triangular outline of the mass of dorsal lamellae {\w 7 irticac it is 
oval ) ; from graminis by the very long posterior lamellae, over- 
lapping the ovisac.” 
Chionaspis sylv.-vtica, n. sp. PI. VUE Figs. 64, 65. 
Scate of femate : Length, 1.5 — 2mm., somewhat convex, very irregulur in 
shape, sometimes elongated and rounded posteriorly, and sometimes deci- 
dedly broadened and truncated posteriorly, giving it a deltoid shape ; dirty- 
white to light-buff in color. First exuvia persistent, buff ; second exuvia, 
brown . 
Scate of mate : Length, .6 — imm., white, strongly tri-carinate with par- 
allel sides. Exuvia very small, delicate, semi-transparent, covering about 
one-fifth of the scale. Commonly fouud on the leaves of the host, causing 
pale spots at the point of attachment. 
