4 CHAS. K. BRAIN. 



The hairs on the antennal joints are exceptionally thin and are distributed, 

 2 on joint I, 2 on II, 2 on IV, 1 on V and VI, 8 or 9 on VII. 



The marginal spines are short, widely spaced, simple, and nearly always have their 

 tips recurved. There are three stigmatic spines, laterals short, median about 3-| 

 times as long as laterals. The stigmatic clefts are but sUghtly recessed, with a few 

 simple glands. 



Habitat : On citrus and a large variety of cultivated plants common throughout 

 the Union. 



Collection Nos. : 110 and 136. 



192. Lecanium africanum, Newstead. 



Lecanium viride var. africanum, Newst., Ent. Mon. Mag. (2) ix, p. 95, 1898. 



Lecanium viride (Green), Newst., BuU. Ent. Res. i, p. 187, 1910. 



Lecanium africanum, Newst., Bull. Ent. Res. vii, p. 357, 1917. 



" Female adult. Colour of dried specimens often yellowish green ; others are 

 bright ochraceous, straw-coloured or pale reddish-brown ; eyes black. Dorsum, 

 especially in the younger forms, with a series of black markings, often forming a 

 narrow loop-like pattern ; these markings are however rarely present in very old 

 examples. Form oblong oval, but the outline is often irregular ; narrowed in 

 front and moderately convex, but the margins broadly flattened, especially the 

 cephalic portion. Antennae of eight segments, rarely of seven ; formula of the 

 former : 3 (2, 4, 5, 8) 1 (6, 7) ; there is a very long hair on the 2nd and 5th segments, 

 and several shorter ones on the 8th, 6th and 7th, each with a distinctly stouter hair. 

 Legs normal, though the anterior tarsi sometimes exhibit a faint dorsal constriction. 

 Anal lobes attenuated distally, inner margin longest ; apices with a few fine short 

 hairs. Anal cleft slightly less than one-third the length of the body. Stigmatic 

 cleft very slight, sometimes scarcely visible ; spines three in number, rather small, 

 the central one being about three times the length of the laterals. Margiual spines 

 small, generally slightly curved and faintly fringed distally. There are three to 

 four hairs of varyiug length near the attachment of each of the antennae, and usually 

 four rather longer and stouter ones just in advance of the anal lobes. Derm cells 

 oval and markedly distinct in stained preparations, but scarcely visible in unstained 

 specimens." (Newstead). 



Habitat : On citrus, Pietermaritzburg, Natal, and Nelspruit, Transvaal. On 

 coffee, Natal coast (Fuller). 



Collection No. : 106. 



193. Lecanium ehretiae, sp. n. 



Adult 5 somewhat similar to L. hesperidum but rather less convex and much darker 

 in colour, dark brown to blackish, 3*6 mm. long by 1-8 mm. broad, regularly oval.' 

 A single fringe of very short hairs is noticeable around the margin when examined 

 with a hand lens and the surface of the body then appears mottled greyish brown 

 m colour ; the anal plates are bright brown. The dorsal surface is slightly shiny, 

 with very indistinct and indefinite ridges and depressions. 



