30 PAPEKS ON COCCID.E OR SCALE INSECTS. 



also, soniewliat smaller, on all the abdominal segments, with, on these 

 segments and also to a less extent on the pygidium, numerous smaller 

 oval submarginal pores. Basal and ventral thickenings practically 

 wanting. 



Type. — Bureau of Entomology No. 14115. On pear, Chefoo, China, 

 collected October 4, 1901, by the writer. Also infesting cuttings of 

 apple and soft pear, received from the Province of Liaou Yang, Man- 

 churia, through F. N. Meyer (S. P. I. & D. Nos. apple, 20276, 20280; 

 soft pear, 20244 and 20280). Collected by Mr. J. G. Sanders in the 

 course of inspection of Department importations, March 21, 1907. 



Note. — In the case of the Meyer importations this insect was 

 found very scatteringiy present on the cuttings of pear and apple 

 referred to, principally the former, and was associated with the San 

 Jose scale, which was even more sparsely represented. Curiously 

 enough, also, this new Parlatoria bears a close superficial resemblance 

 in the balsam mounted female to the San Jose scale, and partic- 

 ularly in the shape of the anal segment and of the produced tip, 

 with two pairs of compressed or closely placed lobes, which are 

 almost of the identical size and shape of perniciosus. The plates 

 also are just about the same size and extent as in perniciosus. "VVliile 

 distinctly a Parlatoria, this species lacks the abundant and striking 

 development of the plates which is usually characteristic of the 

 genus. Its occurrence with the San Jose scale and in somewhat 

 greater numbers even than the latter species, and particularly its 

 habitat in the North Temperate region, would indicate, in connection 

 with its host relations, that it has very great possibilities for evil 

 should it gain foothold on this continent. The genus Parlatoria is 

 noted for its enormous powers of multiplication, and the possibilities 

 of damage as seen in the case of the chaff scale {Parlatoria pergandei 

 Comst.) and the date-palm scale {Parlatoria hlanchardi Targ.) indi- 

 cate that this Manchurian Parlatoria might develop into a much more 

 dangerous insect even than the San Jose scale. While no parasitism 

 was noted in the case of the Parlatoria, some of the San Jose scales 

 associated with it had been parasitized, the parasite, however, not 

 being identifiable from the single fragment found, which was, how- 

 ever, referred by Doctor Howard to the genus Aphelinus. 



PARLATORIA CHINENSIS, n. sp. 



(Plate IX, lig. 2.) 



Scale of female: 1 mm. in diameter or less, subcircular, exuviae 

 eccentric, dark metallic olive, similar in general characters to P. 

 pyri. 



Scale of male: Not seen. 



Adult female: About 0.6 mm. broad by 0.7 mm. long (probably- old 

 gravid female considerably larger) ; normally shaped. Anal plate 



