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, g, n, 

 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 .90. 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 



Averages 



9.64 10.43 33-79 15-64 18.57 25.64 



