Vol. xxv] ENTOMOLOGICAL NEWS. 271 
little longer than broad; 3rd, longest, equaling 4th and 5th together; 
5th, a trifle longer than 4th; and 6th distinctly longer than 5th. The 
proportions of the four distal joints are about as follows: 21, 9, II, 
15. Total length of antenna a little less than one-half length of body. 
Compound eyes, ocelli, abdomen, tips of tarsi and antennae, and more 
or less of the thorax above, dusky to black, otherwise pale yellow. 
The anterior wing has a very distinct, though narrow, black line 
extending from the base along the subcostal nerve, but a little beneath 
it and terminating on the costal margin just beyond the stigma. A 
similar black line starts on the anal margin of the hind-wing close to 
the body and extends forward and outward to meet the costal nerve 
and then turns at an acute angle back to the costal margin close to 
the body. Body and wings are powdered with a white secretion and 
from thorax and abdomen a white waxy secretion forms in long, 
slender threads, nearly or quite hiding the body. Antennal spur of 
6th joint not over 1-5 length of joint and with a large sensorium at 
its base, also large oval sensoria near distal ends of joints 4 and 5, 
and along the underside of joint 3, where there are about 6.” 
The specimens taken the past summer differ from the above by 
being somewhat larger, the length of body in plump specimens meas- 
uring 3 mm., and the antennae measuring .9o. The sensoria on joint 
III of the antenna are almost uniformly 5, and on joint III, 2, but in 
some examples they are rather difficult to see well. There is a strong 
spur near the base of joint III, which does not show in the original 
figure, but has been added on Plate XI, figure A. The permanent 
sensoria are ciliated. 
Proportionate lengths of antennal joints of 14 alate lice ran as 
follows: 
Joints I II III IV V VI with spur 
10 10 34 16 19 26 
10 II 35 16 20 28 
10 II 36 18 19 26 
10 II 35 16 2I 28 
10 II 35 £7, 18 25 
10 II 34 15 18 26 
8 10 30 16 18 27 
10 II 38 17 22 29 
10 II 34 15 19 2 
10 II 35 16 19 23 
9 10 30 14 16 25 
10 10 33 14 18 22 
9 9 32 15 17 23 
9 9 32 14 16 24 
Averages O64: F0.43-+) 33.70') . 1564 18.57 . 25.64 
