OBSERVATIONS ON SCALE-INSECTS (COCCIDAE) — IV. 



21 



but it shows a partial subdivision. Legs long and somewhat slender ; tarsal 

 digitules nearly as stout as those of the claw, the latter with disc-like terminals. 

 Anal lobes (fig. 13, c) with four stout spines ; one apical, the others arranged 

 in a triangle ; beneath each scale are four to five very long stout hairs, which 

 are apparently attached to the eversible sac ; their number and arrangement is 

 somewhat exceptional. Abdominal hairs very long, in two pairs. Circumgenital 

 pores numerous, extending beyond the anal plates. Anal ring with six unusually 

 long, stout hairs. Stigmatic cleft (fig. 13, d) practically obsolete ; spines three, the 

 middle one about twice the length of the laterals ; margin with relatively long and 

 very stout hairs. No derm cells present. Length, 3*5-6 mm. 



Larva. Narrowly elongate. Lateral margins with widely separated, stout hairs ; 

 frons with nine to ten similar but much longer and stouter hairs or spines ; these 

 are packed closely together and give the insect a strikingly characteristic appearance. 

 Anal lobes each with an immensely long hair. Stigmatic spines well developed, 

 but the longest of the three is less than half the length of the marginal hairs. 



British Guiana : Georgetown, " on blade of sugar cane," 12 .ii. 13 (G. E. Bodkin). 



In its general external appearance this Coccid bears a rather striking resemblance 

 to a member of the genus Aclerda, owing to its elongated form and the small amount 

 of white secretion beneath the insect, but it has no real affinity with this genus, and 

 although the ovisac is but slightly developed, it cannot be considered as generically 

 distinct from Pulvinaria ; neither can it be placed, so far as one can judge, in either 

 of the allied genera Tectopulvinaria or Protopulvinaria. 



Pulvinaria ?flavicans, Mask. 



Female, adult. Dead examples shrivelled and resembling a shapeless mass of 

 dirty, amber-coloured beeswax ; dorsum in some examples with detached fragments 

 of glassy secretionary matter, with here and there particles of a white felted substance. 



Fig. 14. Pulvinaria tflavicans, Mask., $; a, ft, antennae; c, stigmatic 

 and marginal spines; d, leg; e, anal lobes. 



