122 Mr. A. Hempel on Brazilian Coccidae. 



different individuals usually fuses, but does not form large 

 masses. The outside is dull and smooth, with many filaments 

 of white secretion scattered over it. The lac is a red-orange 

 colour and brittle only in very old specimens. 



Size of largest individuals : — Length 5 miilim. ; width 

 4*25 miilim. ; height 2'5 miilim. 



Adult I'emale denuded of wax, subcircular, convex, with a 

 tendency to form six lobes. Boiled in a solution of KOH it 

 colours the liquid a deep red. The lac- glands are large, club- 

 shaped, and do not liave the spines at the external opening as 

 in T. cydonice. The antennai are apparently of four segments ; 

 they are "084 miilim. long, club-shaped, and the terminal 

 joint bears two short hairs, liostrum and raentum small. 

 Rostral loop short. Legs wanting. Anal ring with ten 

 large blunt hairs, which protrude but little beyond the chiti- 

 nous ring. The chitinous plates on the caudal ring are ten in 

 number, with nearly parallel sides, and the ends coarsely 

 serrated. The dorsal horn is '089 miilim. long, blunt, and 

 slightly curved at the base. The large spiracles are close to 

 the lac-glands and have many spinnerets around the external 

 orifice. The small spiracles are situated near the rostrum 

 and have twelve to fifteen spinnerets about the external 

 orifice. The four tul>ercles between the caudal ring and dorsal 

 horn are well developed and bear many round spinnerets. 

 The surface of the body bears many small tubercles, each 

 ending in a hair. The four groups of elongate glands found 

 on the ventral surface of T. cydonice were not seen in this 

 species. 



Length 3 miilim. ; width 3 miilim. ; height 2 miilim. 



Larva as in T. cydonice. Length "500 miilim. The ros- 

 trum is very large and the rostral filaments are longer than in 

 the preceding species. 



Uab. Cachoeira and Santa Barbara, State of S. Paulo. 

 Clustered in great numbers on the branches of a species of 

 Croton and on other plants. 



Tachardia parva, Hempel. 



The younger females have a test of brown lac, elongate, 

 with a tubercle in the middle of the dorsum and three 

 ijrocesses on the lateral margin on each side. In the older 

 specimens the test is globular and of an orange-brown colour. 



Specimens varying from 2-2" 75 miilim. long and 1-25-2 

 miilim. high. 



The female, denuded of wax, has three conspicuous lobes 

 on each side. Length about 1*25 miilim. ; width '75 miilim. 



