ABT. 12. MASKEUL, GENERA OF COCCIDAE — MORRISON. 11 



abdominal and two pairs of thoracic spiracles, all with collars of 

 wax pores; derm with numerous multilocular disk pores, variable in 

 detail, small simple pores, and large circular disk simple pores 

 ventrally, these probably the ventral cicatrices; with one type of 

 small, slender setae; anal tube large and long, with three collars of 

 secreting pores of different types; larva elongate oval, antennae 

 normal, 6-segmented ; legs normal ; spiracles rather large, with same 

 number as in other stages, each without pore collar, but with one or 

 two pores; anal tube small, with double pore collar; derm with 

 rather numerous multilocular disk pores, varying in details, and with 

 smaller circular simple pores; derm setae simple, slender, rather 

 numerous; with a single pair of long differentiated posterior setae y 

 with three ventral cicatrices in transverse curved row; adult male 

 with 10-segmented antennae set on prominent tubercles, the hairs 

 not arranged in definite whorls; head with a prominent lamina be- 

 tween antennae; abdomen without caudal or lateral tassels, the 

 sheath of the penis long conical, tapering almost to a point. 



Genus ULTRACOELOSTOMA Cockerell. 



Genotype. — Goelostoma assimile Maskell. 



Reference. — Cockerell, The Entomologist, vol. 35, 1902, pp. 114, 

 258. 



This was established by Professor Cockerell with the single in- 

 cluded species on the basis of the stated absence of legs in the adult 

 female. No other species have been added subsequent to its estab- 

 lishment. 



The type species is represented in the Maskell collection by five 

 slides, one of " larva, Feb. 4, 1890," one of " 2nd Stage female, Sept. 

 1889," one of " antenna of 2nd stage female, Feb. 4, 1890," one of 

 " adult female, Apr. 2, 1890," and one of " adult female, 1891." 



Adult female. — Nearly globular; antennae much reduced, short 

 and stout, composed of five segments; legs present, but much reducedy 

 each appearing as a stout triangle with claw at apex; mouth parts 

 wanting; with two pairs of thoracic spiracles, each with a long 

 chitinized bar, and with seven pairs of abdominal spiracles, each with 

 large opening, nearly as large as that of thoracic spiracles, simplCy 

 the posterior pair placed quite close to the anal tube; derm with 

 numerous multilocular disk pores of one type, but varying in details, 

 the centers circular to trilocular; derm with numerous rather large 

 but delicate setae, many of which appear swollen just at base; anal 

 opening a simple ring joined by a simple chitinized tube ; no ventral 

 cicatrices observed. 



Intermediate stage female. — Nearly globular, somewhat more 

 heavily chitinized than is the adult; antennae smaller and stouter 

 than in adult, 5-segmented ; legs present but even more reduced than 



