162 Mr. T. D. A. Cockerell on 



with two or three processes or teeth on the inner border ante- 

 riorly, apparently to lock them together ; posteriorly the 

 plates each terminate in a chitinous rod, wliich joins a large 

 chitinous posterior to them. Anal ring oval, with eleven 

 bristles oF no great length, placed two at each end, and in the 

 example studied four on one side and five on the other. 

 Margin without spines. 



Larva. — Mr. G. B. King has prepared the following 

 description of the larva : — When dead and dry elongate-oval, 

 brown ; colourless when boiled in KHO. Length 460, 

 breadth 272 /x. Antenna? 6-jointed, joints measuring in /a : 

 (1) 20, (2) 20, (3) 44, (4) 20, (5) 16, (6) 44. Front leg 

 with coxa 48, femur + trochanter 80, tibia 52, tarsus 44, claw 

 16 fi long. Marginal spines ordinary, 16 /x long. Anal 

 lobes prominent, with one long bristle 240 fi long and two 

 short sharp spines 16 /x long. Anal ring with six bristles 

 CO /J, long. 



JJab. Manzanillo, Mexico, on a leguminous shrub with 

 mimosa-like leaves, infesting the small branches, July 18 

 [Toic7isend}. 



JVeoIecanium leuccence, Ckll. 



Zapotlan, Mexico, on Mimosa, July 6 (Townsend). 



The skin is very distinctly minutely reticulated in these 

 examples. The rudimentary antennse have six ill-defined 

 joints, of which the second and third are largest, and about as 

 broad as long. 



Coccus [Lecanium'] minimus (Newstead). 



Colima, Mexico, on leaves of a fan-palm with a prickly 

 nut, July 30 [Townsend). 



Kew to America ; doubtless introduced on plants. Females 

 2^ millim. long are full of larva?, which are 315 /* long. 

 Ihe skin is not properly tessellate, but wrinkled so as to 

 appear so. The only character which does not agree with 

 ISewstead's description is the length of the tarsus; I find the 

 first pair of legs with tibia 75, tarsus 51 fi long. Antennae 

 7-jointed, joint 3 always longer than 4. Anal plates 132 fi 

 long, 75 broad. 



Lichtensia zapotlana, Ckll., var. Townsendi, nov. 

 $ . — Very dark brown, with glassy covering as in zapot- 

 lana ; remains brown after boiling ; ovisac long and narrow, 

 9 millim. long, 2 broad, more or less longitudinally grooved. 



