16 SCIENCE BULLETIN, No. 18. 



Genus XVI. Lichtensia^ Sigrioret. 



Ann. Soc. Ent. France, vol. iii, p. 497. 1873. 



Newstead, Mon. British Coccidcp, vol. ii, p. 32. 1902. 



Cockerel], Canadian Entoinologist, vol. xxxi, p. 331. 1899. 



Austrolichtensia, Cockerell, Ann. and Mag. N. H. London, vol. ix, p. 331. 1902. 



This genus was formed by Signoret for a coccid {L. virburni), found in 

 gardens in Europe on several common shrubs. Thirteen species have been 

 described Mexico, South America, and Egypt. 



Newstead defines the genus as follows : " Adult female naked and more 

 or less active up to the period of parturition, when it much resembles certain 

 forms of Lecanium hesperidun. Immediately before this stage the female 

 envelopes herself, except the cephalic portion, in a dense white felted sac. 

 Antennae and legs well developed. Male coccid with two long white caudal 

 filaments, and four dorsal and four ventral ocelli. Male puparium glassy, 

 with the coronet bifurcate at the posterior extremity." 



The members of this genus only differ from those in the succeeding genus 

 (Signoretia) in the structure of the males and their puparia; there is no 

 difference in the females of the two genera. 



Lichtensia hakearum, Fidler. 

 Lecaniodaspist hakearum. Journal Agr. Western Australia, August, 1897, p. 1345. 

 Lichtensia hakearum. Trans. Ent. Soc. London, p. 457, 1899, pi. xv, fig. 3. 

 Austrolichtensia hakearum, Cockerell, Ann. and Mag. N. Hist (7), vol. ix, p. 451. 

 1902. 



This species was found in Western Australia upon Hakea media and another 

 undetermined species at Pinjarrah, Western Australia. In his first notice, 

 Fuller placed it in the genus Lecaniodaspis. 



Adult female brown, convex, enfolded in a spherical sac of whit' felted 

 secretion ; open at the anterior end, exposing the centre of the back ; anal 

 cleft small; aual ring with six hairs. Antennae seven-jointed, legs well 

 developed ; epidermis with protruding multilocular spinnerets. Length, 

 0-15 inch. (Fuller.) 



705. Austrolichtensia hakearum. Cat. Coccidse, p. 142. 



