Dictionary » G » Grasshopper

Grasshopper

Grasshopper

1. (Science: zoology) Any jumping, orthopterous insect, of the families Acrididae and Locustidae. The species and genera are very numerous. The former family includes the western grasshopper or locust (Caloptenus spretus), noted for the great extent of its ravages in the region beyond the Mississippi. In the Eastern united states the red-legged (Caloptenus femurrubrum and c. Atlanis) are closely related species, but their ravages are less important. They are closely related to the migratory locusts of the old world. See locust.

The meadow or green grasshoppers belong to the Locustidae. They have long antennae, large ovipositors, and stridulating organs at the base of the wings in the male. The European great green grasshopper (locusta viridissima) belongs to this family. The common American green species mostly belong to Xiphidium, Orchelimum, and Conocephalus.

2. In ordinary square or upright pianos of london make, the escapement lever or jack, so made that it can be taken out and replaced with the key; called also the hopper. Grasshopper engine, a steam engine having a working beam with its fulcrum at one end, the steam cylinder at the other end, and the connecting rod at an intermediate point.

(Science: obstetrics) grasshopper lobster, cricket bird.


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Grasshopper energy and oxygen needs

Grasshoppers hve ineffective open circulatory system if matched to earthworm but grasshopper is much more active, oxygen and energy needs r greater 4 more active animal, how is this able to happen? ^ I tried looking in my text for this answer, but not able to understand ...

See entire post
by Ayeshaa
Mon May 28, 2012 1:00 am
 
Forum: Ecology
Topic: Grasshopper energy and oxygen needs
Replies: 1
Views: 1960

The Most Primitive Respiratory System

@JorgeLobo, What strong proof do you have to back the notion that grasshopper has the most primitive respiratory system?

See entire post
by chikis
Mon Apr 30, 2012 10:22 am
 
Forum: Evolution
Topic: The Most Primitive Respiratory System
Replies: 11
Views: 4941

Re: The Most Primitive Respiratory System

... like those of a fish." The ontogeny recapitulates phylogeny concept was rejected by science a long tme ago. Conceptually one could assume grasshopper is the most "primitive" but what are the specific comparisons?

See entire post
by JorgeLobo
Fri Apr 27, 2012 1:39 am
 
Forum: Evolution
Topic: The Most Primitive Respiratory System
Replies: 11
Views: 4941

Re: The Most Primitive Respiratory System

It is very obvious that grasshopper has the most primitive respiratory system but according to the past question and answer booklet where I got the question from, the answer there is fish and am dragging hard to get a concrete explaination ...

See entire post
by chikis
Thu Apr 26, 2012 5:00 am
 
Forum: Evolution
Topic: The Most Primitive Respiratory System
Replies: 11
Views: 4941

The Most Primitive Respiratory System

The progression you gave was only applicable to vertebrates; a grasshopper would be out of the sequence entirely for respiratory systems.

See entire post
by Darby
Tue Mar 27, 2012 7:59 pm
 
Forum: Evolution
Topic: The Most Primitive Respiratory System
Replies: 11
Views: 4941
View all matching forum results

This page was last modified 21:16, 3 October 2005. This page has been accessed 2,029 times. 
What links here | Related changes | Permanent link