222 . THE CANADIAN ENTOMOLOGIST 



imate stage with an anal tube which is formed by the chitiniza- 

 tion of the posterior portion of the anal ring and not by the in- 

 vagination of the posterior portion of the abdomen, with short, 

 stout legs and antennse and with mouth-parts; first larval stage in 

 general resembling the first stage of Icerya, with slender, six- 

 segmented antennse, a well-developed anal tube, and with a series 

 of long, slender setae along the posterior margin of the body; all 

 stages with six pairs of abdominal spiracles. 



Type of the genus, Cryptokermes brasiliensis Hempel. 



Notes on the genus. — In the Fernald Catalogue this genus is 

 referred to the subfamily Dactylopiinae, and is placed between 

 Oiirococctis and Sphaerococcus, apparently because of Cockerell's 

 statement (1902) that "It is now clear that the genus is related 

 to the Australian Sphaerococcus and Ourococcus.'' The real nature 

 of the genera mentioned cannot well be determined from the ex- 

 isting descriptions, but it is fairly evident that Cryptokermes is re- 

 lated to neither of them. It is, in fact, unmistakably a Mono- 

 phleboid form, the presence of the abdominal spiracles alone being 

 sufficient evidence of this. I may say that in this opinion Mr. 

 E. E. Green concurs. 



The exact affinities of the genus are somewhat in doubt. 

 The first stage larva is distinctly Icerya-like, while the inter- 

 mediate stages are very similar to Xylococcus except for the 

 presence of the short legs and antennae. The absence of legs and 

 antennae in the adult female is unique in this group, although by 

 no means uncommon in the Coccidae. 



Cryptokermes brasiliensis Hempel. 



1903. Fernald, Catalogue of the Coccidae, p. 88. 



Adult female. — Length (flattened on slide) 5 mm. Derm 

 membranous except for a large area of the dorsum (and possibly a 

 portion of the venter) at the anterior end of the body, which is 

 heavily chitinized. The eyes appear as two light spots in this 

 chitinized area, which is thickly beset with short, spike-like spines. 

 Remainder of the body sparingly beset with short, slender setae, 

 except about the vaginal orifice where the setae are longer and 

 more numerous. Dermal pores of the types shown in Fig. 5. 

 The anal tube of the penultimate stage (in my specimens at least) 



