92 PROCEEDINGS OF THE NATIONAL MUSEUM, vol. GO. 



opening on each median lobe; with long but indistinct thickenings 

 running from the median lobes far past the anal opening. 



Larva. — Cast skin nearly circular, slightly narrowed behind, show- 

 ing the two pore plates near center of body, and the remains of the 

 appendages; embryonic larva broad oval, antennae 5-segmented, the 

 last very long, legs slender ; with a pair of large poriferous plates in 

 the mid-dorsal region, these with a few tubular ducts and numerous 

 S-shaped center pores ; margin of body with tubular ducts and tiny 

 setae; pygidium with anal opening close to apex; a median chitinized 

 notch, long apical setae, then the median lobes, well developed and 

 notched, and outside of these a few setae and tubular ducts. 



Cotyve.—Q^i. No. 24774, U.S.N.M. 



The following generic diagnosis is based on the preceding species 

 description : 



GENEiaC DIAGNOSIS OF PHAULASPIS. 



Diaspine forms, probably related to the Aspidiotus series, the adult 

 female covered by and more or less enclosed within the convex cast 

 skin of the preceding stage, the secretionary covering thin, usually 

 destroyed, body circular, membranous, pygidium slightly chitinized, 

 antennae tubercles without any long setae, spiracles small, without 

 pores, with small clusters of short tubular ducts and tiny spines along 

 margin of abdomen, pygidium without lobes or plates, margin un- 

 dulating, with a few tiny marginal and submarginal setae, with some 

 small tubular ducts at margin, anal opening large, with internal 

 tube, placed near apex, paragenitals wanting, dorsal pores wanting; 

 intermediate stage female puparium strongly convex, reddish brown, 

 circular, body circular, antennae longer than in adult, with setae, 

 abdominal segments with a few setae and pores at margin, pygidium 

 with two pairs of lobes, Diaspidiotus-like, no plates, dorsal and 

 ventral spines, more or less developed marginal incisions with thick- 

 ened edges, no paraphj'ses, anal opening near apex, with dorsal 

 marginal pores, a few micropores; larva broad oval, developed with- 

 in the body of the adult, antennae 5-segmented, terminal annulate, 

 legs long, slender, normal, with a pair of large chitinized poriferous 

 plates dorsally near mouthparts, each bearing two types of i:)ores, 

 pygidium with anal opening close to apex, median chitinized notch, 

 long apical setae, one pair of lobes and a few setae and tubular ducts. 



According to the Fernald catalogue, this genus is synonymous 

 with Aspidiotus, and its identity with Anonidia has also been sug- 

 gested. It is the present view of the writers, after a rather limited 

 study of supposedly related species, that the genus Phaulaspis is 

 valid, and is entitled to generic rank, this view being largely based 

 on the, apparently, unique development of tlie large dorsal poriferous 

 areas in the larva, and on the absence of marginal pygidial plates in 



