sept. is 9 8.] Townsend & Cockerell: On Mexican Coccid^e. 177 
9. Capitate spines of integument present same form as in ceriferus Claw 
short, digitules of claw about twice as long as claw, unequal, one very stout and that 
kno extremely large, the other more slender and widened or flattened leaf like at end. 
Femur rather stout, swollen, rather long oval in outline, without the trochanter about 
as long as tibia; tibia about one third as wide, parallel-sided. Tarsus a little more 
than half as long as tibia. Tarsal digitules filiform, well knobbed at end, reaching a 
little farther than to the ends of claw digitules. Antennae 6-jointed, the last three 
joints nearly equal in length, the sixth slightly longest, the third very long and a little 
wider than the following ones; the first and second about equal and each less than or 
about one-third as long as the third. The fourth and fifth are about one-half again 
as long as wide; the first is somewhat wider than length of second ; the second is 
truncate-conical, its basal width being about equal to its length, its distal width a little 
more than one-half its basal. 
The only other known roseate forms of Ceroplastes are, a variety of 
floridensis, which is easily distinguished by its much smaller size; and 
albolinealis, which was described from Jamaica, and is a very common 
species in Brazil, but is at once distinguished by the two conspicuous 
white lines on the sides. 
On branches of a wild fruit tree locally called “cojon de venado,” 
El Cuyo del Chicosapote, near Frontera, Tabasco, June 18, 1807 fTow’n- 
send). Div. Ent., No. 7611. ' 
Lecanium tuberculatum, sp. nov. 
9. Scale very convex, rounded-oval, sometimes nearly round, normally about 
4 mm. m length, 3 mm. in width, and 2 mm. in height. Color clear reddish-brown 
the margin narrowly dark brown. Scale finely tuberculate and pitted near border’, 
coarsely and less conspicuously tuberculate on rest of surface, the low rounded 
tubercles with shallow pits or furrows between them. In shrivelled scales the fine 
tuberculation is more extentive and conspicuous. Most specimens also show a pair 
of longitudinal dorsal impressed lines, with one or two less distinct lines running 
across them at right angles. No glassy secretion apparent on surface of scale. The 
blackish rim and tuberculate character of the scale will serve to distinguish it from 
perconvexu/n, which is uniformly blackish and with only the row of fine tubercles 
near rim. 
Legs very short, tibia and tarsus equal in length and about as long as broad; 
the tarsus hardly narrower than tibia, rounded apically and not pointed; claw short, 
stout, strongly hooked, and about half the length of tarsus; femur but little longer 
than tibia, wider basally than apically, and as long as apical width. Digitules o f 
tarsus and claw stout, filiform, the claw digitule apparently longer than the tarsal, 
which latter is about as long as the claw itself. Anal plates subtriangular, together 
forming nearly a square, but somewhat rounded on the caudo-lateral margin. Anal 
ring with four bristly hairs showing between the opened plates. Dermis chitinous, 
with gland pits moderately small and rather numerous. Boiling in KHO stains 
liquid pale brown. 
Belongs to the neotropical group of perconvexum , chilaspidis, urichi, 
