276 THE CANADIAN ENTOMOLOGIST. 



I. Legs all present, but short and unfit for use Apiomorpha, Rubs. 



Hind legs only present, these long Opisthoscelis, Schrad, 



Legs all absent Ascelis, Schrad. 



The genus Cystococctis, Fuller, has not yet been sufficiently described 

 to be included in the tables. It forms spherical galls on Eucalyptus^ and 

 has neither legs nor antennae. 



Asterolecanii?ii. 



Insect with a fringe of glassy rods Asterolecanium, Targ. 



Insect without such a fringe i. 



1. Antennas well-developed in adult P Lecaniodiaspis, Targ. 



Antennae rudimentary or absent in adult ^ 2. 



2. Covering waxy ; end of abdomen strongly chitinous . . Cerococcus,(loms\.. 

 Covering horny ; end of abdomen not or hardly chitinous ; scale 



with a caudal process ending with an orifice. . . .Solenococcus, Ckll. 



(So/enophora, Mask.) 



Covering waxy ; end of abdomen not chitinous ; scale irregular, with 



no caudal process Follinia, Targ, 



Kenncsini. 

 Contains only one genus, Kermes, Boitard. By the larva, this 

 appears to be allied to the Eriococcifii ; whereas the larvae of the Aster 0- 

 lecaniini show them to be allied to the Dadylopiini. Kermes has no 

 triangular anal plates in any stage, and is not related to the Lecaniince. 



Eriococcini. 



Anal ring with hairs i. 



Anal ring without hairs 4. 



1. Antennae and legs absent in adult p Nidiclaria, Targ.* 



Antennae and legs well formed in adult 2. 



2. Adult naked to the last RJiizococcus, Si;^n. 



Adult surrounded by cotton, but dorsally naked .... Gossyparia, Sign. 



Adult contained in a hard black scale Porococcus, Ckll. 



Adult living in a gall on oak; antennre 6 jointed; tarsi 2-jointed ; 



skin with figure-of-S glands Olliffiella, Ckll. 



Adult forming a cottony sac 3. 



3. Anal ring with 8 hairs ; caudal lobes long Eriococcus, Targ.§ 



*I suppose this belongs to Eriococcini, but the larval characters are not sufficiently 

 known. The adult is naked, resting on a cushion of cotton, which surrounds it, as in 

 Gossyparia, from which it is distinguished by lacking legs and antenn.x. 



SThe subgenus Thckcs, Crawford (type E. eucalypti), has 7-jointed antennit ; 

 those of typical Eriococctis are 6-jointed, 



