Table of Contents
What are the different larval stages?
Larval stages undergo metamorphosis in which they usually change in shape, size and organization to form an adult. Insect larvae are broadly classified into four groups: Protopod larva, polypod larva, oligopod larva and apodous larva. During the process of molting, the insect larvae molt with number of times.
Which of the following is a larva of Arthropoda?
Selected types of larvae
| Animal | Name of larvae |
|---|---|
| Arthropoda: Xiphosura | euproöps larva (“trilobite larva”) |
| Arthropoda: Pycnogonida | protonymphon |
| Crustaceans | General: nauplius, metanauplius, protozoea, antizoea, pseudozoea, zoea, postlarva, cypris, primary larva, mysis Decapoda: zoea Rhizocephala: kentrogon |
What is the larval form of phylum?
Larvae of different animals
| Phylum | Organism | Larva |
|---|---|---|
| Cnidaria | Anthozoa (E.g. Gemmaria) | Semper’s larva |
| Ctenophora | Cydipid larva | |
| Platyhelminthes | Taenia (Tapeworm) | Bladder worm (Cysticercus), Hexacanth, Oncosphere |
| Fasciola (Liver fluke) | Cercaria, Miracidium, Metacercaria, Redia, Sporocyst |
How many types of larvae are there?
TYPES OF LARVAE: There are three main types of insect larvae namely oligopod, polypod and apodous.
How do you identify maggots?
Maggots have one blunt end which contains their mouth parts. These are only visible if examined closely, and are usually too small to see at all. The other end of a maggot tapers to a sharp point, and may be patterned or slightly darker. They can be as long as 1/2 inch, but are usually closer to 1/4 inch long.
What do you mean by larval stage?
larva. [lahr´vah] (pl. lar´vae) (L.) 1. an independent, immature stage in the life cycle of an animal, in which it is markedly unlike the parent and must undergo changes in form and size to reach the adult stage.
How do you identify insect larvae?
Recognizing Insect Larval Types
- Head – usually a dark, often hard capsule at front of body.
- Thorax – three segments immediately behind the head.
- Abdomen – eight to 10 body segments immediately following the thorax.
- Segmented thoracic legs – three pairs of segmented or.
Is a larva an insect?
A larva (plural larvae) is the juvenile form of an insect. Different types of insect have other names for their larvae, for example, caterpillars are the larvae of butterflies and moths. For insects that undergo incomplete metamorphosis the larvae are also called nymphs.
Which one is an echinoderm larva?
The pluteus larvae are of two kinds: (1) Ophiopluteus—in Ophiuroidea. (2) Echinopluteus—in Echinoidea. Both the larval forms possess the post-oral arms, antero-lateral arms, postero-lateral arms and postero-dorsal arms. But they differ in detail which are summarised in Table 21.2—Echinodermata.
How do you identify larvae?
Why do I keep finding maggots on my floor?
The top causes of maggots in or around your home include improperly stored trash, excess dog feces, or the presence of an animal carcass. The female flies are attracted to such materials and lay their eggs on them. Some of the dangers of maggots include fly infestations and animal sickness if you have pets.
How many larval forms are there in Arthropoda?
This presentation is all about the larval forms being found in phylum arthropoda. It starts with the introduction of phylum arthropoda and then detailed information about the larval forms and their significance. i have included total 9 larval forms in this presentation. 1.
Which is the first fundamental stage of Arthropoda?
Larval forms in Arthropoda 1. Nauplius larva • Discovered by Muller in 18th century, the Nauplius larva is the first fundamental stage in all crustaceans that sometimes hatches from the egg and sometimes passes inside the egg. • Body is oval in shape and unsegmented with a large cephalothorax and rudimentary abdomen.
How is the larval stage different from the adult stage?
Progressive growth and differentiation transforms the young ones into adult. Whereas indirect development includes larval stages which later become adults. These larval stages are different from the adult in form and structure. The larval stages achieve adulthood through the process of metamorphosis.
Which is the second important larval form of Crustacea?
The protozoaea swims by antennae. Marine prawns, Penaeus hatch in to protozoaea larva. Zoaea is the second important larvae of the Crustacea, after the nauplius larva. Protozoaea stage is succeeded by the zoaea stage.