274 THE CANADIAN ENTOMOLOGIST. 



Ortheziin^.I 



? antennae 8 jointed Orthnia, Bosc* 



$ antennpe 4-jointed i^ . Ortheziola, Sulc. 



MONOPHLEBIN^. 



$ with a long posterior ovisac ; ^ without fleshy caudal processes . . . . i. 



$ with conspicuous waxy lamell?e or processes more or less covering the 



dorsal surface, but no long ovisac ; ^ unknown. . . Walkeriana., Sign. 



9 without a long posterior ovisac, or the lamellte of Walkeriana 2. 



1. Anlennfe of adult ? 1 1 -jointed Icerya, Sign 



AntennjB of adult '^ 9-10-jointed Proticcrya, Ckll. 



2. $ abdomen without long fleshy processes Faiceococais, Ckll. 



$ abdomen with long fleshy processes, usually 8 in num- 

 ber MoiiopJilebus, T.each. 



There are several other supposed genera in the books. Crypticerya^ 

 Ckll., is essentially an leery a without an ovisac ; in the table it will fall 

 with Palceococcus, but having no material of the latter genus, I am not 

 sure whether the two are identical. C. Townsendi, vdiX.pIuchece, has rows 

 of waxy processes, clearly indicating an approach to the condition of 

 Walkcria?ia polei. 



Liaveia, Sign., Ortonia, Sign., Protortonia, Towns., Gtierinia^ 

 Targ., and Tessarobelus, Mont., seem all to be identical with AlonopJilelms. 

 Drosicha, Walk., is said to differ from Monophlebus by its 9-jointed an- 

 tennae, but it is doubtless an immature form of the latter genus. 



The Monophlebinse are really separable into two distinct tribes : (i) 

 Monophlebini, in which the males have fleshy caudal processes, and the 

 secretion of the females is powdery or cottony, including only Monophle- 

 bus ; and (2) Iceryiiii, in which the males have not the fleshy processes, 

 and the secretion of the females is more in the form of waxy plates, 

 including Icerya, Walkeriana^ etc. 



+By the characters given, PJiomcolcachia, n. g. (type Leachia zealandica, Maskell, 

 Tr. N. Z, Inst., XXIII., p. 26), will fall in this sulifamily, but it has strongly Dacty- 

 lopiine features. Of this Pheuacoleachia zealaudica I have males, received from Mr. 

 Maskell, and there is a slide of the females, from the same source, in the collection of the 

 U. S. Department of Agriculture. The female resembles that of Dactylophis, having 

 two long caudal filaments as in that genus, instead of the brush of Urihezia ; but it has 

 curious compound eyes consisting of ocelliform bodies forming a single ring round the 

 liead, interrupted above and below. The adult female, by its elongated form, elongated 

 mentum, and curved spines at the end of the antenna;, resembles R/iiziCcus : but it 

 differs in its 1 1 -jointed antenna." (Maskell, 1. c, I'l. VI., f. 3). The anal ring bears six 

 stout bristles. 



*An overlooked synonym of Orthezia is Cyphoma, Gistel, 184S, Nat, des Thier., 

 p. 151. Type O. characias. (Not Cyphoma, Bolt., 1798). 



