Brittin. — New Coccidae. 



159 



which it divides in halves, and which thus appear like 8 distinct plates, 

 4 on each side ; the next immediate segment above is entire. Immediately 

 above the lobes is a triangular segment left by the converging hyaline bands. 

 The lobes are broad at the base, and chitinized, tapering sharply to the 

 extremity ; on each lobe there is 1 very long seta, and 3 long tubular spines ; 



Fig. 4. — Insect on bark, showing fringe. 

 „ 5. — Insect after treatment with potash. 

 ,, 6. — Abdominal segments, showing plates and spines. 



between the lobes is the anal ring, with 6 long fine hairs. On each 

 free abdominal segments, and somewhat within the margin, on the 

 surface, are 4 long tubular spines similar to those on the lobes, and 

 of these spines continue also round the edge of the thoracic portion 



of the 

 dorsal 

 a row 



of the 



8 



/ 



a= 



!0 



Fig. 7. — Abdominal lobes, showing anal ring. 

 ,, 8. — Antennae of adult female. 

 „ 9. — Leg of adult female. 

 „ 10. — Marginal spines. 



insect, but are longest towards the abdominal region ; a double row of 

 similar but smaller spines extends up the centre of the dorsal surface from 

 the lobes to the fifth free abdominal segment. Numerous minute hairs 

 and spines are scattered over the dorsal surface, also a few small circular 

 spinnerets. Length, about 1-36 mm. 



Larva short and ovate ; colour light-red. Antennae of 6 joints, third 

 and sixth joints equal and longest ; formula (3, 6), (1, 2), (4, 5). Mentum 

 biarticulate Legs normal ; tarsus twice length of tibia. Anal lobes con- 

 spicuous, with 1 long seta and 3 long tubular spines. Anal ring large, with 

 6 hairs. Round margin of body is a row of long tubular spines, with 4 more 

 rows extending up the centre of the dorusm. 



