1912.] HE. E. GREEN: Cocctdae in the Indian Museum. 69 
In the absence of complete examples of the adult females, it 
is impossible to say with certainty that the cysts are all of the 
same species, or that they are specifically connected with the males 
first examined. The probabilities, however, are in favour of their 
being so. With one exception (a single large nodular example, 
fig. 14), the cysts—though varying in size and form—are all of a 
similar structure. 
From such meagre material it may, perhaps, be considered 
imprudent to describe the insect as a new species: but as it is 
equally impossible to assign it with certainty to any of the known 
species, and in consideration of its geographical position, I have 
ventured to do so,—principally in the hope that the publication 
may attract attention to the existence of the genus in India, and 
so lead to fresh discoveries and a better knowledge of the habits 
of this interesting insect. 
Margarodes indicus, sp. nov. 
Adult o (pl. ii, figs. r to 7): described and figured from 
dried (pinned) examples, partially restored by boiling in caustic 
potash. 
Colour dark brown. Details of body segments not absolutely 
determined. 
Antenna with 13 subequal joints: 1st shortest, cylindrical, 
remainder obconical to oval, 3rd joint largest: all the joints 
(except Ist) with fine hairs, not arranged in whorls. The antennae 
spring from two broad plates which might, perhaps, be considered 
as basal joints, in which case the number of antennal joints would 
be taken as 14. 
The normal number of antennal joints in male Coccidae, 
of all subfamilies and genera, is 10. A few abnormal species 
(usually apterous forms) have a less number, but in no other 
genus than Margarodes has a greater number than I0 been 
observed. In fact, this is the first indubitable record of a greater 
number. Signoret, in attributing 13 antennal joints to the male 
of Margarodes (Porphyrophora) hamelit, on the authority of 
Brandt, expresses a doubt as to the correctness of the observa- 
tion. In the light, however, of this Indian species, it is quite 
probable that Brandt has given the correct number for his species. 
Head almost entirely occupied by the large compound eyes, 
which meet below and are separated by a narrow channel above 
(fig. 2). A single ocellus, rather larger than one of the facets of 
the compound eye, can be distinguished on each side, impinging 
upon the margin of the compound eye. 
Wings large and ample: semi-hyaline, very slightly fusces- 
cent. Venation obscure, but apparently more complex than in 
other Coccids. Costal area (from base to two-thirds of length) 
semi-opaque, brownish red; apparently enclosed by a distinct 
nervure which throws off a short branch from near its base, 
towards the costa. There appear to be four other nervures (see 
