Morphology

Adult moths and butterflies are easily recognized by their scale-covered wings, wing venation, and long, coiled fl it

FIGURE 18.1 Anterior portion of adult moth, showing location and structure of proboscis. (A) Proboscis coiled beneath head when not feeding; (B) cross-section midway along length of proboscis, showing central food channel formed by the interlocked pair of maxillary galeae. (A, Original by Margo Duncan; B, Redrawn from Scoble, 1992.)

FIGURE 18.1 Anterior portion of adult moth, showing location and structure of proboscis. (A) Proboscis coiled beneath head when not feeding; (B) cross-section midway along length of proboscis, showing central food channel formed by the interlocked pair of maxillary galeae. (A, Original by Margo Duncan; B, Redrawn from Scoble, 1992.)

proboscis or feeding tube (Fig. 18.1). The proboscis serves primarily as a means of imbibing fluids such as nectar, fruit juices, honeydew, and water. While feeding, fluid is drawn through a channel formed by the tighdy interlocked pair of elongate maxillae (galeae), each of which bears a longitudinal groove along its inner surface (Fig. 18.IB). From there it passes into the alimentary tract by the contraction of pharyngeal muscles. In species which as adults feed on wounds and body fluids of animals, the only significant differences in their feeding mechanism are external modifications, particularly near the tip of the proboscis, to facilitate the rasping or piercing of tissues (Fig. 18.2).

The larvae of moths and butterflies are called caterpillars. The larva is typically cylindrical, with a well developed head capsule, three pairs of thoracic legs, and five pairs of fleshy, unsegmented prolegs, one pair each on abdominal segments 3-6 and 10 (Fig. 18.3). Such larvae are called cruciform. Prolegs usually bear tiny hooks called crochets which aid them in clinging to various surfaces while moving about. The mouthparts are adapted

Emergency Preparedness

Emergency Preparedness

Remember to prepare for everyone in the home. When you are putting together a plan to prepare in the case of an emergency, it is very important to remember to plan for not only yourself and your children, but also for your family pets and any guests who could potentially be with you at the time of the emergency.

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