202 
Schizoneura Americana. Riley. (Fig* 44.) 
Impregnated egg (fig. 44, a.) 0.5 mm long, gamboge-yellow, inclining 
to brown in color, with no special external sculpture. 
\ 
i 
i 
B * 
J 
i * * 
| ii 
[ u % 
! - 3 
I ■ ,J 
t » -M 
. «'«• 
I > 4 <« 
i, tfa 
■ 15 * 
; )'ll 
• i .«* 
* 
Fig. 44. 
“Urst generation. — Stem-mother: Pale yellowish red, with black mem¬ 
bers when first hatched; the red deepening and becoming purplish or 
livid with age. When mature, averaging 3.5 mm in length, globose or 
pvriform, with subobsolete honey-tubes and six dorsal rows of darker 
piliferous and tuberculous spots. Antennae 5-jointed, joint 3 more than 
equaling 4 and 5 together in length. 
“Second generation .—Differing in no essential respect from the pre¬ 
ceding, except that the individuals do not attain so great a size. 
Bright brownish-red when born, they soon become livid brown. 
“Third generation. —Mature, winged female: Alar expanse 5 to 5.6 mm. 
Body dusky, the abdomen slightly reddish; legs either dusky or yellow- 
isli-red. Antennae as long as head and thorax together, dusky, rarely yel¬ 
lowish; not pilose, but with a few short setous points; 6-jointed, the 1st anc 
2nd joints slightly bulbous; 3rd either surpassing or equaling in length the 
4th, 5th, and 6th together, which are subequal; the terminal joint usually 
the shortest, the apical sub-joint being normal, and in some cases suffi¬ 
ciently constricted to resemble an additional joint; joints 3, 4, and 5 
rather distinctly annulated, the constrictions being generally quite deep, 
and producing a moniliform aspect, there being on an average 22 
such on joint 3. Tarsi with the basal joint distinctly separated into a 
lobe, the claws strong, and in length twice the diameter of the tasus. 
Wings hyaline: front pair with the veins becoming obsolete at tips; 
stigma subhyaline, either of a yellowish tinge or somewhat dusky; 
