Maskell. — On Coccidae. 55 



the adult, and these are usually rather longer at the abdominal 

 than at the cephalic end. 



Larva distinctly Lecanid ; form regularly elliptical ; length 

 about -g^in. Antennae of six subequal irregular joints, the 

 last bearing some long hairs. Feet normal ; digitules fine 

 hairs. Margin of the body minutely serrulate and bearing a 

 few scattered very short fine hairs. Spiracular spines rather 

 strong. Mentum monomerous. 



Hab. In Australia, on Ehizophora mangle (mangrove). 

 My specimens were sent by Mr. Koebele, from Brisbane, 

 Queensland. 



I am in a manner breaking, in this instance., a rule which 

 I have laid down for Coccid study, by erecting a new species 

 on the observation of a single specimen in the adult stage. 

 Yet probably no inconvenience will result, as I have between 

 thirty and forty specimens of the second stage, and have 

 examined about a dozen larvae. The characters of these are 

 so clearly those of a Ctenochiton that there is no doubt of the 

 genus ; and, as they do not resemble any of the New Zealand 

 forms, nor the only other species from Australia (C. eucalypti), 

 I venture to think that the rule may be disregarded for once, 

 more especially as I have only given very general features 

 for the adult and its test. The species will take rank near to 

 the New Zealand C. flavus, from which it differs in size, 

 colour, arrangement of test, and in the anatomical features of 

 the second stage. From C. eucalypti (Australia) it differs in 

 colour, in the characters of the second stage, and in the larva, 

 which is smaller and has not the long marginal hairs on the 

 abdomen. I suppose, from the food-plant, that the insect 

 must live either close to the water, or sometimes even sub- 

 merged . 



I do not know the adult male nor the male test. 



Genus Cekonema, Gen. Nov. 



Female insects in the adult stage covered wholly or par- 

 tially by tests of threads more or less closely woven, neither 

 glassy nor cottony nor felted, never forming homogeneous 

 plates. No fringe. Form of insect Lecanid, with normal 

 cleft and lobes. 



Larva Lecanid, showing cleft and lobes. 



Male pupa covered by a glassy test of normal Lecanid 

 form, composed of plates more or less homogeneous. 



The formation of this genus has been necessary to include 

 a species from Australia, in which the test appears to be inter- 

 mediate between those of Ctenochiton or Inglisia and those 

 of Signoretia or Eriopeltis, being too loosely woven for the 

 former and too waxy for the latter. In using here the term 

 "waxy," I do not assert that the secretion of Signoretia 



