Theridiidae sentence example
Snares of another type consisting of a tangled mass of threads amongst which the spiders pick their way with ease, but which are impassable to insects, are spun by members of the Theridiidae and Pholcidae; but by common consent the so-called orbicular web, so characteristic of the Argyopidae but by no means confined to them, is regarded as manifesting the greatest perfection of instinct in snare-spinning.
There is one possible exception, however, to the innocuous nature of the poison and this is supplied by the species of the genus Lathrodectus, one of the Theridiidae.
Many other spiders belonging to the Theridiidae and Linyphiidae also mimic ants; but it is needless to enumerate them, the most perfect examples of this phenomenon being found in the families Clubionidae and Salticidae.
The Theridiidae eject on to the insect from their spinning mamillae drops of liquid adhesive silk; the Argyopidae, steadying it with the tips of their long front legs, sweep additional strands of silk over it with the legs of the hinder pair; the Agalenidae, attaching a long thread to a point hard by, run round and round the victim in circles, gradually winding it up beyond all hope of breaking loose.Advertisement