368 • ROBERT NEWSTEAD. 



KOH the general outline of the insect is approximately ovate (fig. 18, a) but almost 

 invariably asymmetrical. Antennae (fig. 18, b) of eight segments, rarely of seven ; 

 in the former there is a very long hair on the 2nd, and the terminal hairs on the 8th 

 are all very short ; 3rd segment sometimes with a very faint sub-division. Legs 

 well developed and somewhat robust ; tarsal digitules stout and faintly knobbed ; 

 lower digitules markedly incrassate proximally, distally very broadly spathuliform. 

 Stigmatic clefts obsolete ; stigmatic spines (fig. 18, c) three, stout and pointed, central 

 one generally more than twice the length of the laterals, but in some instances one of 

 the latter may be nearly as long as the median. Marginal spines (fig. 18, c) reduced 

 to long, fine, flagellate hairs ; these are arranged in an irregular series two or three 

 deep, and immediately within them an irregular row of small hairs. The anal cleft 

 appears slightly fused in some examples, but it generally separates quite readily. 

 Anal lobes (fig. 18, 6^) subcentral and exceptionally large ; length equal to that of 

 antennae ; base bluntly pointed, apex very broadly rounded, so that together they 

 are broadly pyrif orm in outline ; a long stout hair is present near the centre of the inner 

 margin ; there is also a group of from four to six much smaller hairs towards the outer 

 rounded portion, and two to three minute ones near the inner angles. Anal ring of 

 (?) eight hairs ; there is a bilateral group of four long hairs on the retractile tube, and 

 a similar pair of hairs near to the somewhat ill-defined chitinous sclerite. Derm 

 (fig. 18, e) sparsely hirsute {some of the hairs having divided tips) and packed with well- 

 defined but somewhat irregular translucent cells, the majority of which are roughly 

 oval in shape, the dividing lines between them presenting a polygonal tessellation. 



Length, 2-3-2-3 mm. ; width, 1 •8-2-5 mm. 



Female, young adult. Differs from the old adult $ only in having the derm cells less 

 pronounced. 



Larva. Margin with a series of long stout hairs, which are widely separated, except- 

 ing those on the frons. which are placed much more closely together. Stigmatic 

 spines three, the latciuls exceedingly minute, the central one of great length, being 

 slightly longer than the marginal hairs. 



Gold Coast : Odumasi, on Blighia sapida, iii. 1906 ; " very abundant, especially 

 on the smaller branches. Attended freely by small red ants " {Dr. Slater Jackson) ; 

 Aburi, on Tabernaemontana, Landolphia, Oroxglon and Garcinia {W. H. Patterson). 



The colony on Tabernaemontana is remarkable for the highly polished surface of 

 the integument ; this characteristic is present also in a few of the individuals collected 

 from the other food-plants both by Jackson and Patterson respectively, but to a much 

 less marked degree. The glandular character of the derm, the large size of the anal 

 lobes and the deep transverse depression in the dorsum, apart from the setose character 

 of the derm, are the salient characteristics of this Coccid. It is near L. catori, Green 

 (Bull. Ent. Res., vi., p. 43), but differs from this species by the hirsute character of the 

 derm, the larger number and irregular arrangement of the marginal hairs, and also in 

 having a free abdominal cleft ; in L. catori the last-named is fused. 



Lecanium setigerum, sp. nov. 



Female, adult. Short ovate and flat ; generally slightly narrowed in front, rarely 

 more or less deltoid. Bright buff to smoky brown in colour when dried. Antennae 

 (fig. 19, a) of seven segments ; 3rd very slightly longer than the 4th, the latter with a 



