24 PAPEES OX COCCID^ OE SCALE INSECTS. 



Additional specimens, also on cottonwood, received from Professor 

 Cockerell from Phoenix, Ariz., November 2, 1S99. 



Note. — This species is A^ery closely allied to camellise and latanise. 

 In the possession of paragenital pores it comes nearest to the latter' 

 species. It differs notably in the great development of the dorsal 

 pores, which seems to be a common characteristic of scale insects in 

 ver}^ dr}^ climates, and in the sparsity and shortness of the plates. It i 

 is, furthermore, a rather larger species than either of the two men- 

 tioned. 



AONIDIA JUNIPERI n. sp. ^ 



(Plate VI, fig. 1.) 



Scale of female: Thin, whitish, slightly tinged with yellow, 1 mm. 

 in diameter, circular in outline, slightly convex. First exuvia very 

 light yellow, easily lost^ showing the much darker second. stage as a 

 circular central spot through the opening. Second exuvia very large, 

 dark resinous, almost reddish, strongly chitinized and inclosing the 

 adult female, which can be easily removed through the much thinner 

 and delicate ventral skin of this stage. 



Scale of male: Unusually large, oval, as large as the second exuvia 

 of the female. Coloration and texture as in female. 



Adult female: A little more than half a millimeter in diameter 

 (0.54), of normal peg-top shape, not elongated nor chitinized. Anal 

 'plate, 0.20 nun. broad by 0.14 mm. long; scarcely chitinized, sub- 

 hyaline; tw^o small apical, nearly contiguous lobes, laterals wanting; 

 lateral teeth wanting save as produced by the indentations containing 

 the large peripheral dorsal pores, which form, especially toward the 

 apex, distinct incisions; paraphyses and plates wanting; spines 

 minute; anal opening remote from tip; paragenitals wanting; dorsal 

 pores represented by a large central pore lying between the base of the 

 apical lobes and five large lateral pores along the periphery of either 

 side; some few other pores present, but inconspicuous; ventral thick- 

 ening inconspicuous save the uniform slight chitinization of the 

 pygidium. 



Type. — Bureau of Entomology No. 14123. On the fruit of Jwii- 

 perus sp.; from E. G. Titus, Logan, Utah. 



This species belongs to the genus Aonidia, and is ovo-viviparous, 

 the bodies of the females examined being filled with young ready for 

 emergence. 



ASPIDIOTTJS ( TARGIONIA) CHENOPODII n. sp. 



(Plate VI, fig. 2.) 



Scale of female: 1.5 to 2 mm. in diameter, subcircular, convex; light 

 buff in color, the secretion covering the larval exuvia whitish; with 

 the loss of the larval exuvia, the light-orange second exuvia appears 



