some new Coceidae. 27 



fringe), which were yellowish brown. Directly these insects 

 were placed in liquor potassae they turned green. 



Aspidiotus transparens, Green, subsp. simillimus, nov. 



? . — Scale white, a little transparent, diam. 1| millim., 

 flat, circular to suboval ; exuviae central, very light yellow, 

 sometimes more or less covered with white secretion. 



£ . — Scale oval, ordinary ; exuviae whiter than in the 

 female. 



? . — After boiling yellow; transparent and colourless if 

 the contents are lost ; median lobes remaining yellowish, but 

 hardly darker than the others. Three pairs of well-developed 

 lobes, of the nerii type ; median feebly notched on inner and 

 distinctly on outer side ; second narrower and practically 

 entire; third smaller and notched on outer side. The median 

 lobes always extend a little beyond the plane of the tips of the 

 second, this plane being about on a level with the outer notch 

 on median lobes. Squames as in the nerii group, extending 

 beyond the tips of the lobes, those beyond the third lobe 

 about twice its length. Six or seven long pointed squames, 

 ramose on outer side, beyond the third lobe ; a short distance 

 cephalad of the furthest squame is a spine. Anal orifice a 

 little nearer the caudolateral groups of glands than to the 

 hind end. Transverse pores numerous, belonging to glands 

 of the cylindrical type, as in nerii &c. ; there are over 25 

 well-formed transverse pores on each side of the median line. 

 Caudal region striated. Four groups of circum genital glands, 

 caudolaterals 7 to 9, cephalolaterals 8 to 15. 



Hab. On a palm from Sydney, Australia, found by 

 Mr. Alex. Craw, Dec. 1897, in the course of his horticultural 

 quarantine work at San Francisco. 



The scale of this insect resembles that of A. destructor and 

 transparens. The female differs at once from destructor by 

 the longer median lobes ; from transparens it differs by the 

 more numerous glands in the circumgenital groups, and 

 especially in the much longer squames beyond the third lobe. 

 Compared with some A. transparens on Dalbergia from 

 Ceylon, sent by Mr. Green, the scales of simillimus are more 

 opaque and less wrinkled. The scale of simillimus at once 

 differs from nerii, which has smaller pale orange exuviae; it 

 resembles more closely the hedera? form of nerii than the 

 scales found on oleander. The scale and exuviae of simillimus 

 are too small for Jimbriatus, of which 1 have authentic material 

 from Mr. Maskell. 



Mesilla Park, New Mexico, U.S.A., 

 May 19, 1898. 



