Sept. 1S9S.] TOWNSEND & COCKERELL : On MEXICAN CoCCID^E. 175 



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 antennce. 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 

 coxse. 



Brazil, probably Sao Paulo (Dr. H. von Jhering). On Myrciaria 

 cauliflora. This is a very distinct species from C. sailei, in the com- 

 plete absence of front and middle legs, and the comparatively well 

 developed hind legs. 



Lichtensia mimosas, sp. nov. 



Length of shrunken O, 3^ mm.; of ovisac, 12 to 13 mm. "Width of ovisac, 4 

 to A,y z mm. Ovisac white, compact, surface with a satiny lustre, nearly parallel-sided, 

 not ribbed or keeled, normally covering the insect. 



Antenna; 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 compared with Lichtensia lutea 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 L. lutea 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 antennre with 5 or 6 segments. — T. D. A. C. 



