648 The Philippine Journal of Science 1921 
Genus ALECANIUM novum 
Coccine form, female flattened, oval, with a median elevated 
ridge, covered by a transparent, thin, easily deciduous, waxy 
coat; antennse and legs very much reduced, of the rudimentary 
type; derm not chitinized, only the mouth parts, spiracles, body 
margin, anal plates and a band surrounding these chitinized; 
the thickened margin deeply, irregularly incised, with a single 
row of long, slender setse dorsally and an alternating double row 
of much stouter setse ventrally; spiracular spines apparently 
wanting, their normal position indicated by quadrate chitinized 
plates ; anal plates elongate, narrow dorsal surface bearing 
numerous setse distributed over the whole plate surface, each 
plate terminating caudally in a single much longer seta; fringe 
setse numerous, anal ring with ten to twelve setse and pores, 
small, inclosed within the plates; derm with quinquelocular 
disk pores of two sizes ventrally, with tubular ducts with cup- 
shaped bases ventrally, with minute tubular ducts dorsally and 
with disk pores, possibly with loculi, dorsally grouped near the 
anal plates; larva elongate oval, antennse 6-segmented, legs 
normal, with a single marginal row of slender setse, three spirac- 
ular spines, approximately equal in length, in each group and 
anal plates similar in shape to those of the adult, slightly re- 
ticulate, but with only a long terminal and two or three other 
setse. 
This genus appears to differ from any other known to me in 
the characters of the anal plates and the marginal region of the 
body ; it is, unfortunately, not possible to indicate any genus of 
the subfamily Coccinse as a close relative of this one and little 
can be said at present regarding its probable position within that 
subfamily. 
Type of the genus, Alecanium hirsutum sp. nov. 
Alecanium hirsutum sp. nov. Plate 1, fig. 2. 
Adult female . — Not definitely known to occur in the material 
studied, and possibly not observed ; the form examined probably 
either the next to the last stage female, or the immature last 
stage ; occurring on the twigs of the host, accompanied by male 
puparia; oval, somewhat pointed anteriorly, flattened dorsally, 
with a distinct, rounded, longitudinal ridge medially, the elongate 
oval pair of anal plates placed in this ridge about one-third of the 
total body length from the posterior end; body dorsally, irreg- 
ularly wrinkled and pitted on each side of the median ridge; 
yellow-brown, more or less suffused with darker brown, anal 
