PROC. ENT. SOC. WASH., VOL. 21, NO. 4, APR., 1919 ,1 



Eriococcus leguminicola, n. sp. 

 (PI. 4, fig. 5; pi. 5, fig. 2, A-G.) 



Sac of Female. Occurring on the tiny twigs of the host and on the bases 

 of the pinnate leaves, usually in clusters; maximum length a little over 2 

 mm., normally short oval, strongly convex dorsally, almost circular in median 

 cross section, with two dorsal rows of small secretionary tubercles, these 

 indistinct or not evident in the oldest forms; color varying from dirty white 

 through buff to a faded salmon, the old female sacs of the previous generation 

 a faded white, usually almost wholly obscured by black incrustation, probably 

 produced by fungus growing in the intestinal excretion of the younger growing 

 females; with a rather large posterior circular opening; surface rather roughly 

 matted, thin but fairly firm in texture. 



Adult Female. Maximum length of adult female mounted on slide 2.25 

 mm., broad oval when flattened on the slide, dark red before boiling in KOH, 

 giving off dark reddish stain in this solution: antennae 7-segmented, the 

 measurements of the different segment in microns as follows: 



aborted, total length 142.5, of III-VII is 107 



legs normal for the genus, the tarsus averaging slightly but uniformly longer 

 than the tibia in all the legs, hind coxae with a number, usually about 20, 

 of rather large pores, two or three of these sometimes fused into a single 

 light streak; anal lobes small, tapering strongly, with three long slender 

 dorsal spines, the outer the smallest, all averaging distinctly larger than most 

 of the similar spines on the dorsum of the abdomen, and with an apical and 

 a central subapical and two basal hairs, apical hair averaging 230-250/u, 

 subapical hair averaging 107-125/u, longest anal ring hairs averaging 107-125 p, 

 these lengths as given relative according to the size of the specimen; anal 

 ring with 8 hairs, characteristic of the genus, as described in the preceding 

 species; body dorsally and laterally, at least on the abdomen, with only rel- 



