Crossword-Solution: APTERYGOTA 10 letters, 1 clue 🏆 scrabble score: 16

This is the rule (see Chapters II and III) with the Apterygota, the Orthoptera, and most of the Hemiptera.

Meldola, London, 1882.) INDEX _Abraxas grossulariata_, 60, 83, 97-8 Adaptation of larvae, 57, 79, 114 Adephaga, 51 Adler, H., 94 Aeschnidae, 27, 29, 31 Agrionidae, 27, 28 _Agrotis segetum_, 98 Air-tubes, 2, 11, 23, 47, 70, 77, 87, 120 Alternation of generations, 17, 94 Ametabola, 11, 35 Anapterygota, 116 Anglas, J., 46 Ant-lions, 57 Ants, 64, 66 Aphidae, 17-20, 116 _Aphis pomi_, 18-19 Aphis-lion, 57 Apterygota, 41, 110 Aquatic insects, 23-34, 76-9, 120 _Araschnia levana_ and var.

Lingua: the tongue; applied in Hymenoptera, to the ligula: in Lepidoptera and Diptera, to maxillary structures: has also been used for the hypopharynx, and that use might be adopted: a median organ of the hypopharynx in Apterygota.

Many students of the group, following Brauer, have regarded the Apterygota as representing the original wingless progenitors of the Pterygota, and the many primitive characters shown by the former group lend support to this view.

The insects are divided into numerous orders according to the form of the mouth parts, the structure of the wings, as well as the manner of the development; with the exception of the lowest group (_Apterygota_), which is most nearly related to the ancestors of the insects, and which has no wings and undergoes no metamorphosis, all the remaining orders, which are termed _Pterygota_, have wings on the thorax, though there are, of course, a few species and families of this group which have lost their wings.