12 PROCEEDINGS OF THE NATIONAL MUSEUM Vol.71 



tubular ducts, with delicate tubes and very long slender prolonga- 

 tions scattered elsewhere on the body; no multilocular disk pores, 

 other than the quinqueloculars, observed; no tiny circular simple 

 pores observed; anal region as in other species of CaJJococcus, the 

 ring a small simple band placed ventrally, no lobes, their location 

 suggested only by two larger setae, accompanied by several small 

 ones. 



Second stage female (assumed). — Body elongate ovate, somewhat 

 broader before the middle, length of mounted specimen about 0.68 

 mm., width about 0.29 mm.; derm membranous; antennae short coni- 

 cal, broad at base but 6-segmented, the preapical with one, the 

 apical with several short stout sensory setae; legs short and rather 

 stout, the coxae of each pair widely separated, tibia and tarsus only 

 incompletely separated, claw long and slender, slightly curved, claw 

 digitules slender, much shorter than claw ; spiracles fairly stout, with 

 two or three quinquelocular disk pores adjacent to opening of each ; 

 beak short, stout conical; marginal setae not differentiated; no spi- 

 racular spines; with transverse segmental rows of ra*ther elongate 

 (about 11/x.) setae dorsally and with corresponding ventral rows of 

 smaller, more slender setae ; no 8-shaped pores observed ; with trans- 

 verse segmental rows of elongate tubular ducts; Avith no multilocular 

 disk pores, and with quinqueloculars only adjacent to the spiracles; no 

 tiny circular simple pores observed; anal region poorly developed, 

 lobes not protruding, apical seta about 22ju. long; anal ring simple, 

 small, with short internal tube attached. 



Larva (normal form). — Elliptical, length as mounted about 340/^, 

 width about 150/*; derm membranous; antennae rather stout but not 

 tapering strongly, 6-segmented, the two apical with stouter sensory 

 setae; legs normal in size, claw long, slender, slightly curved, claw 

 digitules slender, slightly knobbed at apices, surpassing apex of claw ; 

 beak short conical, 1-segmented, with a double row of small mar- 

 ginal setae and with one or two other rows dorsally and ventrally; 

 with several setae on the very slightly developed anal lobes, the 

 apical very long, as much as ISOju,; 8-shaped pores rather deeply 

 invaginated, in marginal and incomplete intermediate rows dorsally 

 on each half of body, no submedian row present ; a small quinquelocu- 

 lar disk pore adjacent to the opening of each spiracle; no other pore 

 types observed ; anal ring pooiiy developed, with a faint short tube 

 attached internally, opening not quite apical, (Dimorphic form). — 

 Closely resembling the second stage female, already described, but 

 smaller, and lacking the tubular ducts present in that stage. 



Cotype.—C2it. No. 40363, U.S.N.M. 



This species digresses widely from the other two now included in 

 the genus Callococcus in its habit cliaracteristics, having, as it does, 



