262 PROCEEDINGS OF THE ACADEMY OF [1899. 



modern coccidologists, but it is probably a Llaveia or closely related 

 form. It Avill doubtless be rediscovered when looked for in the 

 type locality. 



The cochineal insect can stand as Pseudococcus co.cii (Burm., 

 Handh. der Entom., 1839, Vol. 2, p. 72). Burmeister's cita- 

 tions of literature belong to the cochineal, and he ignores the Syst. 

 Nat, ed. x. His description of the (^ agrees with the cochineal, 

 but his ?, with caudal setae, is doubtful. The locality is giv^en as 

 Mexico, and it is definitely stated that it is the animal which pro- 

 duces the scarlet pigment. 



SPH^EROCOCCOPSIS u. g. 



Type S. influtipcn {Sphmroeoccus inflatipes Maskell, Trans. N. Z. lust., 

 XXV, p. 238). 



This is Avidely separated from Sphmrococcus by the presence of 



well-developed legs in the adult $ ; the first four small, the hind 



pair very large. The margin is beset Avith spines. 



PHCENICOCOCCUS n. g. 

 Type P. marlatti n. sp. 



Adult ?. Skin tuberculate, but Avithout conspicuous glands; 

 spiracles small; antennae reduced to a mere tubercle; otherwise like 

 Sphcerococcus. The anal ring is hairless in larva and adult. 



Larva with four long caudal bristles instead of only two. No 

 lateral or dorsal spines. 

 Phoenicococcus marlatti n sp. 



Adult V ; broad oval or plum-shaped, wine-red when alive, (fide 

 Marlatt), 1 to 1^ mm. long; occurring packed in great numbers 

 in little cavities about 10 or 12 mm. long by 4 or 5 broad on the 

 midribs of the leaves, communicating with the air by a narrow 

 longitudinal slit. 



Skin transpai'ent after boiling, with only a faint brown tinge, its 

 surface beset with numerous hyaline tubercles, Avhich make it seem 

 tessellate, but no spines or hairs, and only a very few scattered 

 glands, except laterad of the spiracles, where there are numerous 

 small round glands grouped more or less in a semicircle. Spiracles 

 formed as in Sphcerococcus, but small. Antennae mere minute dark 

 protuberances. Mouth parts well developed. Rostral loop bent 

 suddenly near the base. 



Larva elongate, more than twice as long as broad, without lateral 

 or dorsal spines; anteume 6 -segmented, formula 6 12 (35) 4; 6 long. 



