CRYPTOUOOCaTS FAG I. 221 



portion of beecli bark ; young colony with ovisacs 

 more or less isolated. 



Fig. 6 a. An older colony representing many gene- 

 rations with the ovisacs crowded together and 

 overlying each other. Natural size, in profile. 



Fig. 6 b. A few more or less isolated ovisacs in 

 situ. X 4. 



Fig. 6 c. Upper portion of ovisacs removed, reveal- 

 ing a number of females and eggs and a species 

 of Thrips, which was found beneath the woolly 

 covering. X 4. 



Fig. 7. Larva after treatment with potash. X 150. 



Fig. 8. Antenna of the larva. X 300. 



Fig. 9. Leg of the larva. X 300. 



Fig. 10. Anal extremity of abdomen of larva. 

 X 250. 



Adult females and larvae with a non-setiferous anal 

 orifice ; anal lobes obsolete. 



I have followed Maskell * in placing the single 

 genus Coccus in this subdivision ; other authors have 

 included nearly the whole of the Dactylopiinae. 



GENUS CoccuSjt Linnaeus (Signoret). 



At p. 16, Vol. I, of this work, I have referred to 

 the " cochineal insect " (Coccus cacti) as having been 

 met with on certain cultivated cacti in this country. 

 As commonly understood this designation is correct. 

 But the cochineal insect includes three very closely 

 allied species which are not easily separable, viz. 

 Coccus cacti, Linn., C. tomentosus, Lam., and C. con- 

 fusus, Ckll. C. tomentosus, as designated by Signoret, 



* ' Scale Insects of New Zealand/ p. 103. 

 f See Appendix. 



