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NOTES ON SAMOAN COCCIDAE WITH DESCRIPTIONS OF THREE 



NEW SPECIES. 



R. W. DoANE and G. F. Ferris, 

 Stanford University, California. 



During a recent visit to Samoa the senior author had an opportunity to collect a 

 few CocciDAE. No time was available to make a systematic search for these insects 

 and the specimens collected were only such as were seen in the course of other work. 

 As a list of these has been asked for, it seems desirable to publish the following brief 

 notes with the descriptions of the three apparently undescribed species. 



The collection includes the following species :■ — 



Asterolecanium bambusae, Bdv. Very abundant upon bamboo. 



Coccus frontalis (Green), Coccus viridis (Green), Lecanium psidii, Green, Pulvinaria 

 jpsidii, Mask., on unidentified plants. 



Ceroplastes rubens, Mask. Extremely abundant on mango. 



Saissetia nigra (Nietn.). Host unidentified. 



Saissetia oleae (Bern.). Common on oranges and several other plants. 



Saissetia hemisphaerica (Targ.). On several different hosts. 



Eucalymnatus tessellatus (Sign.). On unidentified host. 



Chionaspis citri, Comst. Very abundant on orange. 



Chionaspis samoana, sp. n. 



Female scale white, elongated, widened posteriorly. Exuviae yellowish. Length 

 of scale approximately 1*5 mm. Male scale not identified. 



Fig. 1. Pygidium of Chionaspis samoana, sp. n. 



Adult female elongated, about three times as long as wide. Abdomen slightly 

 constricted between the segments. Three pairs of well developed lobes present. 

 Median lobes conspicuous, their mesal margins fused for a short distance and then 

 diverging rapidly. Discal margin rounded or slightly truncate and crenate. Second 



