Dragon fly (Fig. [177])
Ichneumon fly (Fig. [159])
House fly (Fig. [172])
Flea (Fig. [173])
Silver scale or earwig (Fig. [140])
Codling moth (Fig. [141])
Botfly (Fig. [138])
Moths and Butterflies.—Order ____? Why ____ (p. [82])?
The presence of scales on the wings is a never-failing test of a moth or a butterfly. The wings do not fold at all. They are so large and the legs so weak and delicate that the butterfly keeps its balance with difficulty when walking in the wind.
The maxillæ are developed to form the long sucking proboscis. How do they fit together to form a tube? (See Fig. [147].) The proboscis varies from a fraction of an inch in the “miller” to five inches in some tropical moths, which use it to extract nectar from long tubular flowers. When not in use, it is held coiled like a watch spring under the head (Fig. [148]). The upper lip (labrum), under lip (labium), and lip fingers (labial palpi) are very small, and the mandibles small or wanting (Fig. [146]).