Search results
Results From The WOW.Com Content Network
Coccinellid larvae—flattened, broad in the middle, and tapering at the back—sometimes have a few low projections (tubercles) bearing short hairs and are often strikingly coloured with red or yellow and black. Larvae of the plant-feeding epilachnines often are yellow with black bristles.
About 75% of all insect species go through the four stages of complete metamorphosis - egg, larva, pupa, and adult. The larva is a specialized feeding stage that looks very different from the adult. Fortunately, there are just a few basic larval types and they are relatively easy to recognize.
The larvae of tiger beetles (Cicindelinae), although similar to the dytiscid type, live in holes in the ground or in branches and capture passing insects. The enlarged head of the tiger beetle larva fills the burrow opening, and its legs are modified for attachment and leverage.
larvae are often called grubs; 'white grubs' usually refers to scarab larvae. Pronunciation. coe-lee-OP-ter-rah. Synonyms and other taxonomic changes. recently undergone massive taxonomic changes (1), although the superfamilial arrangement appears settled (2). Many groups once treated as families are now subfamilies, and vice versa.
Larvae: Larvae of aquatic Coleoptera can be recognized by the presence of a sclerotized head, three pairs of segmented thoracic legs, and the absence of wing pads (Figure 12.1). Characters such as the number of tarsal claws, number of leg segments, body shape, and antennal length are diagnostic characters for Coleoptera larvae.
Larval Characteristics: The larvae of beetles also come in a variety of shapes and sizes depending on where they live and what they eat. Larvae generally appear grub-like with a well-defined head capsule, which may be highly sclerotised. They have short antennae and usually have chewing mouthparts.
Coleoptera. Beetles are one of the most diverse orders of insects. Those that damage trees are often (but not always; e.g., leaf beetles) wood-boring beetles, which usually chew through tree bark to lay their eggs in the protected, moist, and nutritious vascular tissues beneath. Their larvae feed by tunnelling through these tissues under the ...
The Buprestidae are one of the larger families of Coleoptera, with 788 species and subspecies recorded from the Nearctic and more than 14,000 in the world. These often brilliantly colored beetles are mostly wood borers as larvae, although some are leaf miners.
In common with other endopterygote insects, the larvae are the main feeding stage but in many families the adults are long-lived and also feed. Sometimes larvae and adults occupy similar habitats with the same food requirements, but in other cases the adults have different habits from the larvae.
Illustrated keys are provided to distinguish beetle larvae from those belonging to other insect orders, and to families of Coleoptera larvae. Colour photographs of beetle larvae representing many of the families discussed, and using specimens from the van Emden collection, are provided.