THE COCCIDAE OF SOUTH AFRICA. 37 



Legs rudimentary, appearing as though composed of three, ahnost equal, cylindri- 

 cal segments with a minute claw. The total length varies between 70 and 90//. 



Habitat : On the thinnest twigs of rhenosterbosch (Elytropappus rhinocerotiSy 

 Less.), Groot Drakenstein, Somerset West and Cape Flats, C.P. (Cape Coll. No. 

 1244). The stems of the host-plant are thickly covered with " sooty " fungus, 

 apparently grown on secretion from the numerous specimens present. 



Collection No. : 100. 



240. Inglisia geranii, sp. n. (Plate iv, fig. 249). 



Insects congregated on the main stems at or near the nodes. Adult insect, 

 with test, about 2*5 mm. long and 1*3 mm. broad at the base, brown, with the air 

 spaces of the test almost colourless and appearing as transverse lines radiating from 

 the centre of each half of the test. The test is composed of two similar halves, each 

 of which simulates a shell or tortoise-shell, with their apices widely separated. The 

 median line at the point of union of the two is almost flat, very little depressed. 

 The test easily flakes away from old specimens and is then white, almost hyaline. 



The antennae are 7 or 8- jointed ; range in /^ : — 7-jointed : (1) 24-31, (2) 14-20, 

 (3) 41-48, (4) 17-20, (5) 14-20, (6) 14-17, (7) 20-24 ; 8-jointed : (1) 24, (2) 17, (3) 

 31-34, (4) 14, (5) 14-17, (6) 14-17, (7) 17, (8) 24. 



Leg I : coxa 68 ; femur + trochanter 136 ; tibia 109 ; tarsus 85//. The tro- 

 chanter has a long (90/<) spine. The upper digitules are long and slender, hardly 

 perceptibly clubbed ; lower digitules comparatively short and slender. 



Anal plate about 115/« long, with 2 or 3 stout spines. Margin with a single row 

 of sharp pointed spines of varying lengths ; these are all broad at the base and taper 

 rapidly to the point. Stigmatic cleft with a single spine a little longer than the 

 longest of the marginal series and a Httle less tapering. 



Habitat : On geranium. King Williamstown, C.P. ; collected by A. Kelly, March 

 1916. Fresh material sent by Mr. J. Hobson, King Williamstown, May 1916. 



Collection No. : 99. 



This species is remarkably close to Inglisia theobromae, Newst., which 

 was described on cacao from Uganda, but it is smaller, and joint 3 of the antennae 

 is apparently always longer than 4. It is also somewhat like /. bivalvata, Green, 

 but the dorsal shield, formed by the inner sides of the two halves of the test, is wider 

 and more oval. 



241. Inglisia zizyphi, sp. n. 



Test of adult 2 shaped like a small bivalve shell, standing erect, with the two 

 halves separated by a conspicuous furrow, and the hinge uppermost, represented 

 by two small, rugose " crowns " of the two halves. The lower margins, which 

 rest on the stem, are surrounded by a slight fringe of fine glassy filaments. The 

 test is pale horn-colour, with the distinct vertical striae appearing slightly iridescent. 

 Length 2 to 3 mm. ; width 1*5 to 2 mm. ; height about 2 mm. 



Adult 2, with the waxy test flaked off, red-brown, of the same shape as the test 

 but with the dorsum shiny and wrinkled. 



