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



of both tarsus and claw probably broken off, the remaining portions on the 

 claw extending only a little beyond the middle, slender, seta-like, tarsus 

 noticeably curved, with a number of stout spine-like setae, tarsal digitules, 

 if present, represented by two small hairs set some distance from the apex 

 of the tarsus and projecting very slightly beyond it, tibiae also with a number 

 of stout spine like setae ventrally and some slender longer ones above ; thoracic 

 spiracles rather large and elongate, abdominal spiracles marginal, much smaller 

 than the thoracic, the connecting tube less chitinized and usually shriveled, 

 in three pairs, located in the posterior portion of the abdomen. 



Young Larva. Total length 0.5 mm. more or less, elongate oval, about 

 equally narrowed before and behind, antennae 6-segmented, typical lengths 

 as follows: II, 39 M I III, 28.5/i; IV, 30 M ; V, 25 n; VI, 80 M; antennae 

 and particularly the legs large and conspicuous in proportion to the body, 

 lengths of the parts of a middle leg about as follows: coxa 46.5/x, trochanter 

 and femur 114/x, tibia 121 M, tarsus 107yu, claw 36 ju, claw slender, only slightly 

 curved, with a tiny and obscure denticle near the tip ; with relatively few 

 large hairs and multiocular gland pores scattered over the dorsum of the body, 

 the hairs at the caudal apex slender, acute apically, distinctly but not con- 

 spicuously longer than some of the other marginal and body hairs which are 

 bluntly rounded apically, longest caudal hair observed 303. 5^ long; ventral 

 abdominal hairs much smaller and more slender; with a single median ventral 

 cicatrix, in this stage apparently a glandular organ placed on a slight pro- 

 tuberance located at the caudal apex of the body; anal opening dorsal, near 

 but not at the caudal end of the body, surrounded by a stout circular ring 

 marked with radiating ridges or thickenings; with three pairs of tiny slender 

 abdominal spiracles; no traces of the ovisac-secreting band of pores, as such 

 or of the hairs peculiar to it observed. 



Described from four mounted adults and a number of mounted 

 larvae, and from four unmounted specimens from Mendoza, 

 Argentina, under collection number 148a. There is no informa- 

 tion as to the exact date of collection or of the name of the host. 



The types are in the U. S. National Collection of Coccidae. 



Subfam. DACTYLOPIINAE. 



Genus Asterolecanium Targ. 



Asterolecanium viridulum Ckll. 



(PI. 4, fig. 3; pi. 6, fig. 1, A-F.) 



This species is represented in the Jorgensen collection by a lot 

 of material collected at Bomplana, Misiones, Argentina, July, 

 1010, on Compositae, under collection number S19a. 



This is a pit forming species which appears to have been over- 

 looked by Mr. E. K. Green (Jour. Econ. Biol., vol. V, 1910, pp. 

 .'! .")) in his discussion of the pit-forming species of Asterolecanium. 

 In the key given there for the separation of such species, : [ ii iJitiit< 

 runs to tlitspcsiac Green, from which it may be separated, from a 



