432 CLASS vin. 



Margarodes. See LANSDOWN GOLDING, Transact, of the Linn. 

 Soc. xvi. 1. 



Calypticus COSTA, Aspidiotus Bc-UCHE, BuRM. 

 Monophlebus LEACH, BURM. 

 Porphyrophora BRANDT. 



Dorthesia Bosc. Wings two and poisers in males ; females 

 apterous. Antennae of male nine-jointed, long, setaceous ; of 

 female eight-jointed, short, subulate. Abdomen of male terminated 

 by a pencil of cilia. 



Comp. Boso, in Observations sur la Physique, &c., par ROZIER. 1781. 

 pp. 171 173, DOBTHES, ibid. xxvi. 1786, pp. 207 211, BURMEISTER, 

 1. 1. figs. 6, ii. 



Aleurodes (Aleyrodes) LATR. 



Note. Genus Aleurodes (Aleyrodes) LATR., seems rightly to be 

 referred to this family by BURMEISTER. Metamorphosis complete, 

 as in males of Cocci; pupa quiescent, folliculate. Also anterior 

 wings sufficiently similar to wings of Cocci. But the number of 

 wings (four), which are not wanting in females, the rostrum too, with 

 which, as it seems, the males also are furnished, seem to indicate 

 the separation of this genus from the Coccina, and accordingly 

 LAT.REILLE joined it with the Aphidii, and lately, HARTIG with the 

 Psyllte ; WESTWOOD, however, to avoid a difficulty, preferred creating 

 a small family from the single genus. 



Sp. Aleyrodes Chelidonii LATR., Phalcena (Tinea) proletella L., REAUMUR, 

 Ins. ii. PI. 25, figs, i 7, BURMEISTER, 1. 1. Tab. I. fig. 12 (larva), Tab. n. 

 fig. 7 (imago), WESTWOOD, Inlrod. to mod. Class., in plate of Title to 

 Vol. i., HARTIG in GERMAR'S Zefochr. f. Entomol. in. p. 371, Tab. i. 

 figs. 30, 31 (Antenna, wing). 



B. Metamorphosis incomplete. 



Family XXXVI. Aphidii s. Phytophthires. Wings four, with 

 nervures longitudinal alone, often ramose or bifid; in some no 

 wings. Tarsi with two joints, the last biunguiculate. Rostrum in 

 both sexes. Antennas mostly with six to ten joints, longer than head. 



Aphis L. Antennas witli not more than six or seven joints. 

 First joint of tarsus very short. Fore- wings with marginal stigma. 

 Abdomen mostly supplied posteriorly with two conical tubercles. 

 In most species some imagines are apterous, others winged. 



