32 OHIO STATE ACADEMY OF SCIENCE. 
segment, are white, waxy piates or lamellae. In the adult female, the 
lamellae are united posteriorly, forming a long, parailel-sided mar- 
supium, which contains the eggs and young. The arrangement of the 
lamellae can be better shown by a figure than by description, q. v. 
Antennae eight-jointed, all fulvous except the black, somewhat fusoid 
eighth joint; the first joint is very stout, the second the shortest and 
stouter than the remaining ones. Legs light brown, the darker tarsi 
bearing numerous fine spines. 
Adult Male: The siender dusky body is about 1mm. in length, 
and bears two large ovate, transparent wings with two veins united 
at the base. Wing expanse, 2.5mm. The last segment bears on either 
side a long white filament. 
Remarks: This insect is a destructive pest in greenhouses, 
seriously infesting Lontana, Chrysanthemum and Verbena in the 
Ohio State University Conservatory. 
ORTHEZIA SOLIDAGINIS Sanders. 
ae -Oone alle 
Sanders, Ohio Naturalist, iv, 4, p. 94 (1904). 
Adult female: Length (including marsupium), 6mm.; width, 
2.5mm. Body completely covered by white waxy secretion in four 
series; two inner series composed of eight pairs of lamellae extending 
laterally from median line with tips turned backward and upward, 
gradually increasing in length to the sixth then rapidly decreasing; 
the ninth pair jointed at tips forming a ring around anal orifice. The 
two lateral series are each composed of ten lamellae, all turning back- 
ward except the first on either side. The second and third lateral 
lamellae are subequal, the others increasing in length to the long sub- 
equal eighth and ninth, reaching midway on the marsupium; the tenth 
pair are very short and inconspicuous. A lamella extends downward 
between the antennae to the ventral surface. The marsupium is 
fluted on the dorsal surface, plain ventrally and gradually narrowed 
and elevated posteriorly. 
Body, antennae and legs dark reddish-brown. Antennae 8-jointed 
bearing scattered hairs and with distal ends of joints enlarged; the 
fusoid eighth joint with a terminal spine and with distal half black. 
Formula:—3, 8, (4, 5, 2,) 6 (7, 1). Length of joints in mu:—(1) 135, 
(2) 150, (3) 205, (4) 150, (5) 150, (6) 141, (7) 135, (8) 180. Legs large 
and strong, rather spiny, with femur and tibia of almost exactly equal 
length and tarsus more than half the length of tibia; large claw with 
three to four denticles and a pair of short flattened digitules. 
The body is thickly covered with tubules about 20 mu long, and 
small derm-orifices. The anal ring is elliptical bearing six hairs and a 
narrow chitinous band on each side of orifice, and is thickly dotted. 
