IMPERIAL BUREAU OF ENTOMOLOGY. 



BULLETIN 



OF 



ENTOMOLOGICAL RESEARCH. 



Vol. VIII. 1917. 



OBSERVATIONS ON SCALE-INSECTS (COCCIDAE)— IV. 



By Robert Newstead, F.R.S., 

 The School of Tropical Medicine, the University, Liverpool. 



Llaveia abrahami, sp. no v. 



Female, adult. Ovate, strongly gibbose above and flattened beneath ; segmen- 

 tation both on the dorsum and venter distinct. Colour, in alcohol, buff-yellow ; with 

 a thin deposit of white secretion in the hollows between the segments ; legs and 

 antennae yellowish brown. It is highly probable that much of the secretion had 

 disappeared in the alcohol in which the specimens were preserved. Antennae of 

 eleven segments, 2nd and 11th longest ; 3rd a little shorter than the latter, but much 

 longer than the succeeding ones, which are submoniliform in shape ; average length 

 0*8-0*9 mm. Legs relatively short ; tarsi a little more than half the length of the 

 tibiae ; front pair shortest, measuring 0*85 mm. ; posterior pair longer, measuring 

 1-1*1 mm. ; hairs relatively long and slender ; claws simple, though in one example 

 two of these organs have a well-marked tooth-like projection dor sally, just above 

 the curved tip. Derm both dorsally and ventrally rather thickly set with very short 

 fine hairs ; margin with a narrow band of long fine hairs, the longest of which measure 

 0*6-0*7 mm. Pores dorso-ventrally relatively very small, circular and with beaded 

 rims ; these are less numerous than the fine hairs ; those at the margins are slightly 

 larger, much more numerous, and many have clear triangular-shaped centres. Anal 

 segment of abdomen with three large ovate rings, the central one being slightly the 

 largest and measuring about 0-2 mm. in its longest axis. Length, after maceration 

 in KOH, 8-9 mm. 



Larva. Very like those of the genus leery a. Marginal hairs of great length, those 

 in the abdominal region measuring 0*7-0*8 mm. There are four pairs of very long 

 caudal hairs, the median pair slightly the longest, measuring 1*1—1*2 mm. Antennae 

 of six segments ; terminal segment with many hairs, of which six to seven are much 

 the longest, the longest measuring 0*5 mm. Derm rather thickly set with long fine 

 hairs and numerous pores similar to those in the adult but relatively larger. Legs 

 C365) Wt.P.7/21. 1,000 8.17. B.&F.,Ltd. Gp.11/1. 



