444 Transactions. — Zoology. 



Adult of normal form. The head and thorax are dark- 

 brown, patched with yellow ; the abdomen is yellow, with the 

 genitalia and the dorsal cornicle brown ; feet and antennae 

 brownish-yellow. Antennae normal, witli seven joints. Feet 

 long and slender ; claws normal. Forewings exhibiting four 

 light-crimson patches— one small rhomboidal patch close to 

 the anterior margin at about half its length ; a second, sub- 

 rectangular, near the point of curvature of the anterior 

 margin ; a third, of irregular shape, opposite the second, 

 but not touching the posterior margin ; and a fourth, broadly 

 T-shaped, the base of the T springing from the posterior 

 margin at its most concave point. Genitalia of female 

 sharply conical ; genitalia of male not observed. In the 

 dorsal cornicle the lingula does not protrude, and is probably 

 obsolete, as in the pupa. 



Hah. In Australia, on Acacia longifolia. My specimens 

 were sent by Mr. Froggatt, from Botany, near Sydney. 



The very thick and strong spines of the larva and pupa 

 distinguish this species from A. banksice, in which they are 

 much more slender, though somewhat similarly arranged. 



59. Aleurodes tinseoides {auctor ?). Signoret, Ann. de la 

 Soc. Ent. de France, Dec, 1867, p. 399. 



60. Aleurodes vaccinii, Kiinow. Bntom. Nachricht., 1880, 

 VI., p. 46 ; Douglas, Ent. Mo. Mag., 1880, p. 89 ; ib., 1889, 

 p. 256. 



61. Aleurodes vaporariorum, Westwood. Gard. Chron., 

 1856, p. 852 ; Frauenfeld, Verb, der Zool.-Bot. Gesellsch., 

 Wien, 1867, p. 798; Signoret, Ann. de la Soc. Ent. de 

 France, Dec, 1867, p. 387 ; Douglas, Ent. Mo. Mag., 1886, 

 p. 164. 



62. Aleurodes xylostei, Westhoff. Jahresber. Zool. West- 

 fal. Verein, 1886, p. 56 ; Karsch, Entom. Nachricht., 1888, 

 xiv., p._31. 



Genus Aleukodicus, Douglas and Morgan. 



General characters of Aleurodes; vein of fore wing branched 

 a second time near its extremity. 



In the diagnosis of this genus Mr. Morgan (Ent. Mo. Mag., 

 1892, p. 31) states that the structure of the genital organs of 

 the niale is "different from any species of the genus Aleu- 

 rodes.'' I have been unable to detect any such difference. 

 Under A. anonce the genitalia of the male are said to be "in 

 form of a forceps, between which lies the penis," and are so 

 figured {loc. cit., plate i., fig 4). Signoret, in his generic 

 characters of Aleurodes, says, "Extremity of the inale ab- 



