Dactylopiiiice. ■^Sj 



segment. Anal ring large and conspicuous, with a double undulating chain of 

 cells encircling six extremely long whip-like setae fully twice the length of the 

 caudal setas. Antenna {fig. 13) with seven joints, of which the seventh is the 

 longest ; the remaining joints subequal in length, though the third is usually 

 slightly longerand the sixth slightly shorter than the others. Limbs robust (fig.8) ; 

 tarsus equal to or slightly longer than the tibia ; claw stout and falcate ; ungual 

 digitules very short, tarsal digitules moderately long. Length of mature insect 

 I "50 to 2"o mm. 



Adult male (fi^g. 3) apterous, but with small wing pads. Pale yellow ; with 

 a pair of longish curling white caudal filaments. Antenna (/^. 5) ten-jointed, 

 with from one to six fine knobbed hairs on each of the last six joints. Genital 

 sheath short and stout. Length 075 mm. 



Young larva (/^f. 2) pale yellow, thinly dusted with white powdery secretion. 



In crevices of the bark of Phyllanthus sp. and Euonymus sp. ; Nuera 

 Eliya and Bandarawella. Also on the stems of Loranthus longiflorus — princi- 

 pally around the nodes and in the axils of the leaves ; Hewaheta. 



Genus TYLOCOCCUS, Newstead. 

 Tylococcus, Newst., Ent. Mo. Mag.., Vol. XXXIII. p. 165 (1897). 



Newstead erected this genus to contain a single species {T. inadagas- 

 cariensis) characterised by a series of prominent, spiniferous marginal tubercles ; 

 with the other characters as in Psctidococcus. 



Brain ('The Coccids of South Africa,' T)a7ts. R. Soc. S. Africa, Vol. II., 

 Nov. 191 5, p. 65) 2iss\gr\s my Pheiiacocctcs ifisoHius to this genus. I am not, 

 however, in agreement with that author, with regard to the systematic position 

 of msoliti(s, and prefer to retain it in the genus Phenacocciis. The type of 

 Newstead's genus has eight-jointed antennas and constructs no ovisac. The 

 two new species that I am now describing, though without such well-defined 

 tubercles, are — I believe — congeneric with madagascariensis. They agree 

 with that insect in the possession of eight-jointed antenna;, in producing no 

 ovisac, and in the fact that they occur only in shelters constructed by ants. 



Synopsis of Ceylon Species. 



A. Marginal tubercles rounded and prominent ; limbs small and 



very stout fortnicatii. 



B. Marginal tubercles reduced or obsolescent ; limbs larger and, 



proportionately, less stout simplicior. 



