1922 ] On some Trophobiotic Cocculce from British Guiana 137 
the stems of Cecropia angulata I. W. Bailey. The ants belonged 
to a species of Azteca not yet identified.” (Paratypes). 
No number. “Kartabo, B. G. August 1920. In stems of 
Cecropia with Azetca sp. (Paratypes). 
The types are in the U. S. National Collection of Coccidse. 
The proliferation of the anal ring setae in this species is a 
marked digression from the normal condition in the genus 
Pseudococcus and might be regarded as of sufficient importance 
to justify the separation of the species from that genus. How- 
ever, most, if not all, of the other structural characters of the 
species appear to be characteristic of Pseuclococcus and it has 
therefore been placed in that genus. 
Genus Farinococcus, gen. nov. 
A member of the group of which Pseudococcus is the typical 
genus; body oval, antennae 8-segmented, legs normal, without 
tiny pores, claw without denticle, beak short triangular, 2- 
segmented, spiracles stout with large opening and numerous 
disk pores near mouth, two pairs of dorsal ostioles, cerarii very 
large, composed of many lanceolate spines, setae and pores and 
joined into a continuous band anteriorly; anal lobes not de- 
veloped, with ventral chitinized thickening and apical seta, anal 
ring normal, with pores and six setae, derm with triangular pores 
dorsally and ventrally and many multilocular disk pores ven- 
trally in genital region, no other pore types, derm with slender 
setae dorsally and ventrally, with a single median ventral ci- 
catrix. Genotype. — F arinoccusus multispinosus , sp. nov. 
This genus diverges from the normal Pseudococcine type 
most conspicuously in the marked development of the cerarii 
and the great increase in the number of ventral disk pores, and, 
to some extent, in the enlargement of the spiracles. 
Farinococcus multispinosus sp. nov. 
Occuring in cavities in the stems of the host, attended by ants. 
Adult female . — Preserved in liquid, so nothing regarding the 
normal external appearance can be given; color of alcoholic 
