CAKDIN.IL EEETIE. 



149 



The Pyrochroida3 are known by the distinct neck, the rounded 

 thorax, and the form of the antennae, which in tlie males are 

 boldly toothed, as may be seen at Fig. d. The mandibles are 

 deeply notched at the tips, the maxillary palpi have the last 

 joint rather axe-shaped, and the elytra are long, wide, and 

 cover the whole of the abdomen. The typical genus has the 





1. PjTOchroa cocciuea. 2. Anaspis nificollis. 3. Lytta vesicatoria. 4. Bnichus rufi- 

 manus. 5. Platyrhinus latirostris. a. Pyrochroa, larva. 6. Platyrhinus, larva, 



c. Bruchus, larva. rf. Pyrochi-oa, antenna. e. Lytta, aiitenna. /. Bnichiis, antenna. 

 g. Platyrhinus, antenna. A. Anaspis, antenna. i. Lytta, cla\\s. j. Platyrhinus, tarsus. 



antennae longer than the head and thorax, £iid very boldly 

 'pectinated,' or comb-like, in the males, in which sex the eyes 

 are distant from each other. ' Pectination ' is nothing more 

 than a development of ' serration,' or saw-like form, each of the 

 joints being drawn out into a long and narrow tooth, sometimes 

 on one side only, but often on both sides. The latter form of 

 pectination is conspicuously shown in many moths, as we shall 

 see when we come to treat of these insects. 



