sept. 1898.] Townsend & Cockerell: On Mexican Coccid^e. IT5 
wide, distinctly 4-jointed, joints 1 to 3 more than twice as wide as long, last joint 
narrower and irregular with several hairs. Another specimen, probably of a previous 
moult, shows five joints in the antennae. Front and middle pairs of feet entirely ab¬ 
sent, without tubercular rudiments. Hind legs quite well developed, distinctly seg¬ 
mented, not tubercular but elongate; coxa subtriangular, as long as basal width, 
wide; femur (plus the small trochanter) wide, but only about two-thirds as wide as 
base of coxa, about as long as length of coxa; tibia narrower and a little longer than 
femur; tarsus tapering, fully as long as tibia, without apparent claw. In the imma¬ 
ture specimen above mentioned the femora are relatively wider compared with the 
coxae. 
Brazil, probably Sao Paulo (Dr. H. von Jhering). On Myrciaria 
caitliflora. This is a very distinct species from C. sa/lei, in the com¬ 
plete absence of front and middle legs, and the comparatively well 
developed hind legs. 
Lichtensia mimosae, sp. nov. 
Length of shrunken 9, y / 2 mm.; of ovisac, 12 to 13 mm. Width of ovisac, 4 
to y / 2 mm. Ovisac white, compact, surface with a satiny lustre, nearly parallel-sided 
not libbed or keeled, normally covering the insect 
Antennae rather short, eight-jointed, without noticeable hairs except what ap¬ 
pear to be two short ones at tip, second joint considerably shorter than third which is 
longest, fourth and fifth nearly equal and shorter than third, sixth about as long as 
second, seventh and eighth but little shorter. Approximate antennal formula 3 
( 45 ) (26) (78) 1. Tarsal digitules very long, slender, more than twice as 
long as the claw, not greatly knobbed. Digitules of the claw very stout, one 
quite equally thickened and not greatly widened at end, while the other is nar¬ 
rowed in the middle and club like at end. Claw digitules as long as the claw, 
which is rather large. Tarsus a little more than one-third length of tibia; femur 
markedly longer than tibia. Anal plates together forming a square, the outline of 
each being a right-angled triangle, each with two short hairs at posterior end. In¬ 
tegument with numerous oval or usually nearly spherical glands, the smaller ones so 
massed as to give a finely granulated appearance. Marginal spines small and simple, 
but fairly stout, about or hardly as far apart as their length. 
. As com P a red with Lichtensia lulea Ckll., from Vera Cruz on Croton 
being the only previously known tropical Mexican Lichtensia , the pres¬ 
ent species differs markedly in the claw digitules, besides having the 
ovisac pure white instead of lemon-yellow. In Z. iutea the claw is 
smaller, and the digitules of the claw are about twice as long as the latter. 
Occurring singly on branches of Mimosa sp., locally called “sarsa,” 
Las Minas, near Frontera, Tabasco, June 4, 1897 (Townsend). Div. 
Ent., No. 7810. 
Noack has also sent me some specimens in situ , collected by Dr. Campos Novaes at 
Itatiba, State of St. Paulo, and I find they live in little crater-shaped galls. The 
females have the antennae with 5 or 6 segments_T. D. A. C. 
