34 CHAS. K. BRAIN. 



anal opening to the test is surrounded by a distinct circular ring which is itself 

 sunken in a deep depression with broadly rounded sides. In dry specimens the whole 

 waxy material is roughened, hard and very brittle. The pair of larger divergent 

 p}Tiform bodies referred to in the description of quadrilineatus are not present. 



When cleared of the waxy covering the insect is of a characteristic form, with the 

 dorsum uniformly rounded and smooth and the marginal area produced in a series 

 of broadly rounded bead-Uke lobes. The caudal prominence is extremely rudimen- 

 tary, appearing as a flatly rounded hump, black in contra&t with the deep red 

 brown of the remainder of the insect. The integument, when cleared, is dense 

 ^nd is pitted like that of many species of Saissetia. The stigmatic spines are in 

 .an elongate row around the shallow cleft, the series becoming double in the centre. 



The antennae are 6-jointed, three being very long and variable, e.g. : — (1) 27, 

 <2) 37-40, (3) 88-119, (4) 20, (5) 27, (6) 44-51//. 



Legs long, normal. Chitin of caudal protuberance appears as though bossed 

 with a honey-comb pattern. 



Habitat : On stems of Rhus sp. (probably R. viminalis), Victoria West, C.P. ; 

 collected by Mr. van Heerden. October 1915. 



Collection No. : 346. 



:236. Ceroplastes rusci (Linn.) 



Coccus rusci, Linn., Syst. Nat. Ed. x, i, p. 456, 1758. 



Coccus caricae, Bern., Mem. Acad. Marseille, p. 89, 1773. 



Coccus artemisiae, Rossi, Mant. Ins. ii, pp. 56, 514, 1794. 



Calypticus radiatus, Costa, Faun. Reg. Nap. Cocc, p. 12, 1835. 



Calypticus testudineus, Costa, Faun. Reg. Nap. Cocc, p. 12, 1835. 



'Calypticus hydatis, Costa, Faun. Reg. Nap. Cocc, p. 14, 1835. 



•Columnea testudinata, Targ., Atti dei GeorgofiU, n.s. xiii, p. 31, 1866. 



•Coccus hydatis, Targ., Studii sul. Cocc, p. 12, 1857. 



■Columnea testudiniformis, Targ., Studii sul. Cocc, pp. 8, 11, 12, 1867. 



Chermes caricae, Bdv., Ent. Hort., p. 320, 1867. 



Ceroplastes rusci. Sign., Ann. Soc Ent. Fr. (5) ii, p. 35, 1872. 



Lecanium artemisiae, Sign., Ann. Soc. Ent. Fr. (5) ii, p. 37, 1872. 



Adult $. Test about 7*5 mm. long, 5*2 mm. broad and 5 mm. high, regularly 

 •domed, rounded in front, rather excavate behind. Colour greasy white, suffused 

 with purpHsh red. Dorsal dome and margins of plaques lined with greenish grey 

 lines ; anal pore and middles of plaques of same colour. Stigmatic bands, 2 on each 

 side, pure white, broad at stem and tapering inwards. Middle of dorsum with a 

 depression in which there is an elongate, glossy white prominence similar to those 

 in centres of plaques, but longer. 



Antennae 6-jointed ; range in ll : (1) 34-40, (2) 37-40, (3) 114-120, (4) 17-24, 

 (5) 20-27, (6) 44-57. 



Leg II : coxa 102 ; femur -\- trochanter 170 ; tibia 120 ; tarsus 85 ; claw 20//. 

 Margin of sides of body with a single row of small thimble-Uke spines ; amongst 

 "these are mixed a few simple spines. Stigmatic clefts very shallow, not chitinised, 



