. The Cambridge natural history. Zoology. EROTYLIDAE--MYCETOPHAGIDAE - COCCINELLIDAE 237 in forests. "We have only six species in Britain, and the whole of Europe has only about two dozen, most of them insignificant (and in the case of the Dacnides aberrant, approaching the Cryptophagidae very closely). The sub-family Languriicles (quite wanting in Europe) consists of more elongate Insects, with front acetabula open behind ; they have different habits from Eroty- lides proper ; some are known to live as larvae in the stems of herbaceous plants. They possess a highly developed stridulating
. The Cambridge natural history. Zoology. EROTYLIDAE--MYCETOPHAGIDAE - COCCINELLIDAE 237 in forests. "We have only six species in Britain, and the whole of Europe has only about two dozen, most of them insignificant (and in the case of the Dacnides aberrant, approaching the Cryptophagidae very closely). The sub-family Languriicles (quite wanting in Europe) consists of more elongate Insects, with front acetabula open behind ; they have different habits from Eroty- lides proper ; some are known to live as larvae in the stems of herbaceous plants. They possess a highly developed stridulating organ on the front of the head. The Clavicorn Polymorpha are very closely connected with the Phytophaga by Languriicles. Fam. 37. Mycetophagidae. — Tarsi four-joint n], slender, the front fed of the male only three-jointed ; coxae oml, not deeply embedded; abdomen icif/i jin- rentral seg- ments, all movable. A small family, of in- terest chiefly because of the anomaly in the feet of the two sexes, for which it is im- possible to assign any reason. The species are small, uninteresting Insects that live chiefly on Cryptogams of various kinds, especially in connection with timber ; the larvae being also found there. There are - FIG. Jl8. — Litargus bifas- about a dozen species in Britain, and ciatu*. scarcely 100 are described from all the world. The , placed by Leconte and Horn in this family, seem to go better in Cryptophagidae. Fam. 38. Coccinellidae (Lady -birds}. — Tarsi apparent!;/ three- jointed ; the jirst two joints pubescent ln/nntli; the third joint consisting really of tivo joints, the small true third joint being inserted near the base of the second joint, the upper surfun- of which is grooved to receive it. Head much concealed l>i/ the thorax. Antennae feebly clubbed. The lady-birds number fully 2000 species. The structure of their feet distinguishes them from nearly all other Coleoptera- except Endomychidae, which are much less
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