14 PROCEEmNGS OF THE NATIONAL MUSEUM vol.71 



up of pores of three sorts, corresponding closely in position and in 

 general composition to tliat found in the genotype, pulchellus, al- 

 though differing in details: tubular ducts, so far as can be deter- 

 mined, of one sort only, small, rather short, somewhat swollen at 

 inner end and with deep asymmetrical cup, widely scattered over 

 dorsal and lateral surfaces of body, and to an uncertain extent 

 ventrally, but apparently wholly excluded from the dorsal longi- 

 tudinal pore band; derm with small quinquelocular disk pores 

 around spiracular openings as described, and with larger similar 

 pores dorsally in tvvo loose rows forming the borders of the longi- 

 tudinal pore band ; ventral surface anterior to anal ring with trans- 

 verse rov\^s of scattered small disk pores, each with a definite quin- 

 quelocular center surrounded by a band possibly, but, from the mate- 

 rial at hand, not certainly containing small loculi in uncertain num- 

 bers, possibly around 10; no cribriform plates; with a rather dense 

 cluster of very tiny, apparently simple, pores through the middle 

 section, or the area a little behind the middle, of the dorsal longi- 

 tudinal pore band, the numbers gradually decreasing anterior and 

 posterior to the densest portion ; anal region practically obliterated, 

 no traces of lobes or of chitinization ; anal ring placed ventrally, 

 well anterior to the apical margin in mounted specimens, reduced 

 to nothing more than a relatively minute chitinized collar; a few 

 larger stouter setae between ring and posterior margin of body, one 

 pair in particular, each about lOja long, probably representing the 

 apical setae. 



No other stages available, except very poor embryonic larvae not 

 suitable for description. 



Goty'pe.—Q,2it. No. 40364, U.S.N.M. 



This species is readily differentiated from the two others now 

 placed in Callococcus by its gall-making habit, by its large size, and 

 by the presence of a dense cluster of minute simple pores in the mid- 

 dle section of the dorsal pore band. Forming, as it does, gall swell- 

 ings in the twigs of the host, it has very little resemblance to either 

 the genotype with its definitely formed waxy test or the other in- 

 cluded species acdciae with its dense mass of white cottony secretion. 



It is necessary to call particular attention to the fact that this in- 

 sect, as described by Maskell, is not identical with the Sfhaerococcus 

 Jeptospermi sent out by Mr. W. W. Froggatt to various coccidolo- 

 gists and redescribed by Prof. G. F. Ferris in 1919.- This insect, 

 as pointed out b}^ Professor Ferris, may perhaps agree sufficiently 

 with Mr. Green's genus Amorphococcus so that it may be placed in it. 

 As it is at present without a name it is described briefly and named as 

 new elsewhere in this paper. 



2 Can. Ent. Vol. 50, 1919, p. 250. 



