﻿NOTES ON CALIFORNIA COCCID/E V 211 



Pygidium (Fig. 83, D) — Xonc of the lobes very prominent. Median di- 

 vided in the middle, but fitting together to form one well rounded mesal lobe. 

 Second pair serrate and more or less divided into several as are all of the lobes. 

 There are rudiments of a third, fourth and even fifth pairs of lobes all serrate 

 and apparently divided into three lobes. The three teeth or lobes are pro- 

 nounced on the mesal and second pair. The spines are unusually long and 

 stout. Tiiey are distributed as follows : ( )ne between the mesal and second 

 pair, this one small ; one between the second and third pair, larger than the 

 first ; one between the third and fourth, and one between the fourth and fifth, 

 both of these are very large. There are two more very large spines before the 

 last segment of the abdomen is reached, and on this segment are three such 

 spines. The tubular spinnerets are numerous and thickest between the anal 

 opening and the lateral margins of the pygidium. The circumgenital glands 

 are arranged in groups as follows ; lower laterals — 23 to 26, upper laterals — 

 28 to 30, median— 10 to 13. 



M.VLU Sc.-XLE — Resembles the male of the geims Chionaspis. Color — white, 

 with the exuviae yellowish-brown. There are three distinct lobes to the male 

 case as shown in the cut (Fig. 83 C). The length is from one-third to one- 

 half that of the female, .\dult form was not obtained by the writer. 



Food plants — .Ispidistra Iiirida. ( )rchids. Ferns, Orange, Mango, Fig, 

 Pepper tree, Acacia inclano.vylon. IhivalUa iiioorci, Cocos l^luiiiosa. Cyaiiofiis, 

 Areca catechu, Platxccriiiiii, etc. 



Habitat — The writer's specimens were taken from Platycerium and Boston 

 Fern in a Pomona greenhouse. It has been reported in quarantine at San Fran- 

 cisco and from the following other places : France, England, India, Formosa, 

 Japan, Ceylon, Australia, Brazil, Trinidad, Canada (greenhouse), Massachu- 

 setts, Washington, D. C. 



Figure 84. Aulacaspis rosae. 

 Aulacaspis rosas (Bouche) Rose Scale 

 FEM.XLii Sc.\LU (Fig. 84) — Nearly oblong to round, with irregular margin. 

 Diameter 2 mm. Color — nearly white or gray, with c.xuvi:e yellow or brown. 

 Texture very thin and fragile. 



Fem.xle Body (Fig. 85 B) — Brown, turning red when boiled in KOH, 

 larger at the anterior end and tapering towards the posterior, more or less 

 triangular. Body segmented near the pygidium as shown in the cut. .\ large 

 dark spot marks the location of the mouth parts. 



