90 THE CANADIAN ENTOMOLOGIST.. 



Larva of ordinary form, with a row of large figure-of-eight (double) 

 glands on each segment ; numerous smaller round glands ; no spines 

 except the marginal ones, one on each segment on each side, about 15 /x 

 long ; no greatly produced caudal tubercles ; caudal bristles two, moder- 

 ately long ; anal ring with six long bristles. Antennae 5-jointed, joint 5 

 with very long bristles. Joints measuring in /* : (1.) 21, (2.) 15, (3.) 42, 



(4-) 3°, (5-) 42. 



Hab. — San Bernardino, Paraguay, Sept. 23, 1S97, on spiny plant, 

 probably leguminous. 



The genus Akermes is closely related to Lecanium, but is distinguished 

 by its globular form, round chitinous areas in the skin, microscopical 

 tessellation, and the characters of the larva as described. It has some 

 resemblance to Cryptes from Australia, but it is not likely that it has the 

 peculiar male scale of that genus. 



One other species is known, Akermes verrucosus ( Lecanium verru- 

 cosum, Signoret), which I had erroneously referred to Saissetia. This is 

 from Montevideo, and is very much larger than A. Bruneri. 



(4.) Lichtensia simillima, n. sp. — 9 . Red-brown, with a narrow 

 white margin, varying to ochreous ; ovisac white, firm, texture leathery ; 

 9 with ovisac about 5^ mm. long, 2^ high. 



9 . Margin with strong simple spines, about 25 /x long and 30 apart; 

 skin with many tubular glands ; labium small and semicircular (as in Z. 

 viburni); anal plates triangular, about 180 /x long, outer sides about 

 equal, upper surface with a long finger-like process passing from near the 

 middle backwards and inwards, the two processes nearly meeting in the 

 middle line. 



Middle leg : femur and trochanter about 270 /x, tibia 180, tarsus 120; 

 tarsal digitules filiform, 6c long ; claw digitules slender, about 24 long. 

 Antennae 8-jointed, with sometimes a "false joint" in the third; joints 

 measuring in /x : (1.) ?, (2.) 45-48, (3.) 96-105, (4.) 33-39, (5.) 48-5 1, 



(6.) 36, (70 33. (8-) 5i- 



Hab. — On some shrubby plant. The label reads, " Scale, General 



Acha." Closely related to L. lycii from New Mexico. 



Ceroplastes. (Wax Scales.) 

 The female insects are to be separated by the following tables : — 

 (a.) External Characters. 

 Wax of the different individuals confluent, wholly surrounding the 

 branch Bruneri. 



