^KT. 17 MASKELL ASTEROLECANHNAE MORRISON 35 



six to eight each but the individual plates tending to coalesce, till so 

 few as two grouped plates to a cluster may be present ; anal region de- 

 veloped into two rather long conical lobes, each membranous except 

 for inner face, this broadly chitinized at base and concave, the two 

 thickenings forming a more or less distinct collar around anal setae, 

 with a rather stout apical seta about 78/i long at end of each lobe 

 and with two rather stout subapical and a submedian seta on inner 

 face, each of these as much as 21/x, long, and the ventral subapical 

 much more slender than the others; each lobe with three 8-shaped 

 pores; with a large and conspicuous median cauda, about 50/a long 

 l3y 60/i wide at base, this tapering and rather distinctly angulate at 

 apex; with two rather large and stout and, anterior to these, two 

 much smaller setae below the anal ring; ring with pores and eight 

 setae, the last about 80/x long; ventral abdominal derm tending to 

 protrude beyond anal lobes. 



Larva. — Ovoid, distinctly tapering posteriorly, length about 230/*; 

 antennae 6-segmented, the third the longest; legs slender, not un- 

 usual, claw very slender, with denticle near tip; both pairs of digi- 

 tules present, exceeding claw, those of claw only slightly knobbed at 

 apices; 8-shaped pores present, large and conspicuous, in three rows, 

 marginal, submedian and intermediate on anterior portion of body 

 but only the first two present posteriorly, caudal structures in gen- 

 eral similar to those of adult, the same elements present, but less 

 developed, anal seta about 150/x long; marginal setae small, not 

 conspicuous ; no traces of spiracular spines. 



Cotype.—Q^^t. No. 40374, U.S.N.M. 



The two New Zealand species of Solenococcus may be separated 

 very readily by the condition of the cribriform plates. In fagi., 

 four, grouped in two pairs, are present; in coroMae.^ while there are. 

 also only two groups, there may be as many as six plates in each of 

 the groups, or if there is fusion, the plates may be quite elongate in- 

 stead of roughly circular. These two species are differentiated from 

 all of the Australian Cerococcus species through the absence of 

 even aborted legs, resembling the Fijian Cerococcus triioides in this 

 respect. From this last, the two New Zealand species differ in indi- 

 vidual details, fagi, while normally with four cribriform plates 

 grouped in two pairs, lacking any large-sized 8-shaped pores in the 

 mid-dorsal area, and cm^olciae^ while possessing a limited number of 

 these large pores in the mid-dorsal region, having a far smaller num- 

 ber than hryoides and normally having many more than two plates 

 in each of the two cribriform plate clusters. The test of hryoides, 

 with its conspicuous tufts of secretion, is, of course, strikingly differ- 

 ent from the nearly smooth test of the two New Zealand species with 

 the protruding apical tube. 



