NEW SPECIES OF DIASPINE SCALE IXSECTS. 25 



as a conspicuous spot; ventral scale attached to the bark, wliite, 

 rather abundant. 



Scale of male: Elongate, sides nearly parallel ; length 1 nini., some- 

 times slightly more; same general characters as the female, except 

 that the lower secretion remains attached to the upper, forming a 

 definite flattish sac or cocoon which easily separates from the plant. 



Adult female: Nearly circular, 1.3 mm. wade by 1,5 mm. long in the 

 larger specimens; hyaline, except anal plate; parastigmatic glands 

 wanting. Anal plate about 0.4 mm. in diameter, normally shaped, 

 but slightly chitinizecl; a single pair of rather contiguous narrow 

 median lobes, chitinized, brown, wdth a more or less cUstinct basal 

 chitinizecl prolongation; lobes oblique at tip, with a produced inner 

 apical angle, closely reproducing the characteristics of the same lobes 

 of dearnessi; second and third lobes represented by mere projections; 

 lateral teeth represented by the projections just referred to, which are 

 homologous with the second and third lobes,' and by a minute general 

 serration of the edge of the anal plate ; first incision deep and contain- 

 ing two short but easily distinguishable plates; second and third 

 incisions minute; paraphyses wanting; plates, except in first incision, 

 as noted, minute or wanting; spines normal; anal opening large, oval, 

 one-third from tip; paragenitals wanting; dorsal pores minute and 

 inconspicuous; basal tliickenings inconspicuous or wanting; ventrrf*-^ 

 thickenings not showing more than the generally suft'used chitiniza- 

 tion of the anal plate, the longitudinal thickenings distinctly inclosing 

 the oval vaginal area. 



Type. — Bureau of Entomology No. 14143. Coolabah, New South 

 Wales, on Clienopodium ; collector, J. G. Smith. 



Note. — This species is very close structurally to dearnessi CklL, but 

 is much less chitinized. The prominent median lobes are almost ex- 

 actly like those of dearnessi. The latter species, however, has five 

 prominent lateral projections instead of the two inconspicuous ones 

 exliibited by clienopodii. The dorsal pores of clienopodii are much 

 less conspicuous than in the case of dearnessi; the first incision is 

 deep, the plates in this incision are larger and more distinct, and there 

 are other minor differences which, taken together wdth the wide 

 separation geographically and the different food plants, perhaps 

 warrant giving a specific name to the New South Wales material. 



CHIONASPIS MICB-OPORI n. sp. 



(Plate VII, fig. 1.) 



Scale of female: 2.5 mm. long, of the normal shape, expanding pos- 

 teriori}^, usually more or less curved; secretion wliite, smooth, and 

 dense; with distinct ventral scale. 



Scale of male: About 1 mm. in length, normally shaped, with dis- 

 tinct median carina. 

 46797—08 2 



