By David V. Alford
A whole figuring out of the biology and existence histories of pest species is essential for all these desirous about crop construction and crop safety. this significant new name offers complete insurance of significant insect and mite pest species, basically in Northern Europe. Textbook of Agricultural Entomology is largely divided into components. the 1st half covers the exterior and inner beneficial properties of the most important insect and mite pest households, whereas the second one half offers exact descriptions of significant pest species together with details on lifestyles historical past levels (vital info whilst contemplating keep watch over equipment) and the plants which those species assault.
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Extra resources for A Textbook of Agricultural Entomology
Superfamily DERMESTOIDEA 9. Family DERMESTIDAE Small or medium-sized beetles, the adults clothed in hairs or scales; head with a large ocellus dorsally; apical three segments of antennae forming a club; tarsi 5-segmented. Larvae very hairy (Fig. 65) and often called 'woolly bears'; mainly scavengers, several species causing damage to stored products. EXAMPLES: Anthrenus spp. (carpet beetles), Trogoderma granarium (khapra beetle). Fig. 65 Larva of a carpet beetle (= 'woolly bear'), Anthrenus verbasci - family Dermestidae (xf 0).
EXAMPLE: Hepialus hamuli (ghost swift moth). Superfamily NEPTICULOIDEA 4. Family NEPTICULIDAE (p. 203) Minute to small moths with a metallic sheen and distinctive 'eye-caps' formed by the basal segment of each antenna (Fig. 116); wing vena- Order LEPIDOPTERA (Butterflies and Moths) tion reduced, especially on hindwings; wings with long hair fringes; female ovipositor short and fleshy. Larvae wedge-shaped and virtually apodous (vestigial legs present on meso- and metathorax, abdominal prolegs small and without crochets); usually leaf miners, pupating externally in small, parchment-like cocoons.
The long axis of the mouth-hooks is more or less continuous with the rest of the mouthparts (Fig. 113c). Larvae mainly phytophagous. EXAMPLES: Delia antiqua (onion fly), Pegomya hyoscyami (mangold fly). The Main Groups of Insects and Mites 52 species have piercing mouthparts and feed on the blood of mammals. Larvae of many species are carnivorous (in their second to fourth instars) and some are then useful predators of crop pests. EXAMPLES: Haematobosca stimulans (cattle biting fly), Haematobia irritans (horn fly), Hydrotaea irritans (sheep head fly), Stomoxys calcitrans (stable fly); Muscina stabulans (false stable fly), the larvae of which are predators of, for example, larvae of Ceutorhynchus pallidactylus (cabbage stem weevil).