22 CHAS. K. BRAIN. 



spines and a few long hairs near the insertion of the antennae. Stigmatic spines ; 

 laterals short, conical ; median longer (51/i). 



Habitat : On guava, Botanic Gardens, Durban ; collected by A. Kelly, November 

 1914. 



Collection No. : 81. 



Genus Ceronema, Mask. 



Maskell's original diagnosis of this genus, as given in the Transactions of the New 

 Zealand Institute, p. 55, 1894, is as follows : — 



*' Female insects in the adult stage covered wholly or partially by tests of threads 

 more or less closely woven, neither glassy nor felted, never forming homogeneous 

 plates. No fringe. Form of insect Lecanid, with normal cleft and lobes. 



" Larva Lecanid, showing cleft and lobes. 



" Male pupa covered by a glassy test of normal Lecanid form, composed of plates 

 more or less homogeneous." 



219. Ceronema mobilis, sp. n. 



Adult 5 about 3 mm. long, broad oval in outHne, flat, with the dorsum almost 

 entirely covered with long, white, waxy filaments. Around the margin the filaments 

 are long and coarse, but those on the dorsum are short and fine and ± curly and 

 densely matted and appear almost felted. The colour of the insect, beneath the 

 secretion, is caramel brown. 



When cleared and mounted the body is broad oval ; integument thin and trans- 

 parent with numerous scattered, small, simple gland openings. Margin very 

 closely set with a very short fringe of marginal spines, which are only about 20ju 

 long, thin, linear, two or three, usually two, arising from the same pore ; they are 

 unusually close together, averaging about 14/^ apart. Stigmatic clefts shallow, 

 but distinct because of their chitinised sides ; each cleft w^ith two or three curved, 

 blunt processes which are about as long as the marginal spines. 



Antennae 7-jointed ; range in ju : (1) 27-37, (2) 41-51, (3) 34-54, (4) 68-78, 

 (5) 27-31, (6) 17-27, (7) 41-44. Joints 2 and 4 each with two long setae, 5 

 with one, 6 with two and 7 with eight. 



Leg I : coxa 75, femur + trochanter 187, tibia 105, tarsus 68, claw 24/^. 



Anal plate about 140/* long with 1 apical and 3 subapical spines. 



Habitat : On leaves of common native bush (Celastrus cordata, E.M.) (Celastri- 

 neae) ; collected by C. Fuller, Illovo River, Natal, August 1916. 



Collection No. : 97. 



The adult $ moves about quite readily. A number of mature specimens 

 were put on one side when received with a view to photographing them, but 

 next day, when the leaves had slightly dried, the insects had all crawled off and 

 so disarranged the waxy filaments. 



Genus Lichtensia, Sign. 

 Adult ? oval or suboval, like a Pulvinaria, except that the secretionary sac covers 

 the whole body with the exception of the cephalic end, which is usually more or less 

 exposed. Antennae 8- jointed. 



