JOURNAL OF ENTOMOLOGY AND ZOOLOGY 181 
mm., I, 0.025 mm.; V, 0.025 mm.; VI, 0.024 mm.; making the total 
leneth 0.225 mm. The following variations have been noted: 
HM, (IV Wl, Vi) 1 CV, VE) 
Alen vale hye Uh), a NGL, Ve 
Wildy Eve. I, 0k, Vik). Vi. Val 
TEL, (iv. Vil, Thy 1. CV VT) 
Legs (Fig. 2, A) large with few stout spines. Femora always 
longer than the tibie. Comparative lengths of the tibiae and 
tarsi variable. Without considering the claw, either may be 
longer or they may be coequal. With the claw, the tarsus is 
always longer. The claw (Fig. 2, C) is only slightly curved 
and has a very small but distinct denticle on the inside near the 
tip. Digitals are long with large knob. Anal lobes (Fig. 2, E) 
distinct with long spine and four short stout spines on each. The 
eight circumanal spines are less than half as long as the long 
spines on the anal lobes. 
Habitat—Nacon Chico, Sonora, Mexico. 
Host—Reported on ‘‘Chino’’. As this is the Spanish word 
for quinine the plant probably belongs to the genus Cinchona. 
Collector—Taken by Prof. C. H. T. Townsend May 1, 1911, 
and sent by him to Dr. T. D. A. Cockerell, who kindly forwarded 
the material to the writer. The species is named after Dr. 
Cockerell, who has on numberless occasions rendered valuable 
aid to the author’s work on scale insects. 
