Difference between revisions of "Hypoderma spp."

From WikiVet English
Jump to navigation Jump to search
Line 14: Line 14:
 
|species            =  
 
|species            =  
 
}}
 
}}
 
+
==Introduction==
 
[[Image:Warble flies.jpg|thumb|right|150px|Warble Fly - Geo. H. Carpenter, Cambridge University Press 1913 - Wikimedia Commons]]
 
[[Image:Warble flies.jpg|thumb|right|150px|Warble Fly - Geo. H. Carpenter, Cambridge University Press 1913 - Wikimedia Commons]]
  
Line 21: Line 21:
 
==''Hypoderma bovis''==
 
==''Hypoderma bovis''==
  
{| cellpadding="10" cellspacing="0" border="1"
+
Also known as: '''''Warble fly Nothern cattle grub
| Also known as:
 
| '''Warble fly<br>Nothern cattle grub
 
|-
 
|}
 
  
 
===Identification===
 
===Identification===
Line 37: Line 33:
 
==''Hypoderma lineatum''==
 
==''Hypoderma lineatum''==
  
{| cellpadding="10" cellspacing="0" border="1"
+
Also known as: '''''Warble fly Common cattle grub Heel fly
| Also known as:
 
| '''Warble fly<br>Common cattle grub<br>Heel fly
 
|-
 
|}
 
  
 
===Identification===
 
===Identification===
Line 53: Line 45:
 
==''Hypoderma diana''==
 
==''Hypoderma diana''==
  
{| cellpadding="10" cellspacing="0" border="1"
+
Also known as: '''''Warble fly
| Also known as:
 
| '''Warble fly
 
|-
 
|}
 
  
 
===Identification===
 
===Identification===
Line 70: Line 58:
  
 
[[Myiasis_Producing_Flies_Flashcards|Myiasis Producing Flies Flashcards]]
 
[[Myiasis_Producing_Flies_Flashcards|Myiasis Producing Flies Flashcards]]
 +
 +
==Literature Search==
 +
[[File:CABI logo.jpg|left|90px]]
 +
 +
 +
Use these links to find recent scientific publications via CAB Abstracts (log in required unless accessing from a subscribing organisation).
 +
<br><br><br>
 +
[http://www.cabdirect.org/search.html?rowId=1&options1=AND&q1=Hypoderma&occuring1=title&rowId=2&options2=AND&q2=&occuring2=freetext&rowId=3&options3=AND&q3=&occuring3=freetext&x=48&y=17&publishedstart=yyyy&publishedend=yyyy&calendarInput=yyyy-mm-dd&la=any&it=any&show=all ''Hypoderma'' spp. publications]
 +
  
 
[[Category:Oestridae]]
 
[[Category:Oestridae]]
 
[[Category:To_Do_-_Max]]
 
[[Category:To_Do_-_Max]]
 
[[Category:Expert_Review]]
 
[[Category:Expert_Review]]

Revision as of 11:26, 1 October 2010


Hypoderman spp.
Kingdom Animalia
Phylum Arthropoda
Class Insecta
Order Diptera
Family Oestridae
Genus Hypoderma

Introduction

Warble Fly - Geo. H. Carpenter, Cambridge University Press 1913 - Wikimedia Commons

There are two important Hypoderma ssp. found in cattle, namely; H. bovis and H. lineatum. H. diana is also a parasite of clinical significance, affecting the deer population.

Hypoderma bovis

Also known as: Warble fly — Nothern cattle grub

Identification

H. bovis are 15mm in length, and have a bumble-bee appearance. The abdomen is yellow, and there is a band of black hairs located down the middle. This parasite is of the family Oestridae.

Life Cycle

H. bovis lays single eggs on hairs around the lower legs of the host. The larvae develop and enter the body through the skin, where they migrate to the epidural fat found along the thoracic and lumbar vertebrae of the spine. The larvae stay here for the duration of the winter.

The larvae are palpable as distinct swellings, known as warbles.

Hypoderma lineatum

Also known as: Warble fly — Common cattle grub — Heel fly

Identification

H. lineatum are 13mm in length, and like H. bovis have a bee-like appearance.

Life Cycle

The eggs are laid in rows of around 6 on single hairs. The eggs then penetrate the skin and move along the connective tissue toward the diaphragm. They will continue to migrate, until they reach the oesophagus where the larvae will spend the duration of the winter. After 3 months larvae reach winter resting sites where they remain from November to February/March whilst moulting to the L2 stage.

Adult flies emerge on warm, sunny days between June and August. The adult lives for around 3 weeks.

Hypoderma diana

Also known as: Warble fly

Identification

The adult H. diana is around 15mm in length and like both H. bovis and H. lineatum.

Life Cycle

The adults have a short life-span, and do not feed. Eggs are laid on the legs and lower body of the host. Larvae crawl down the hairs, and begin migration through the skin. The larvae burrow along the spinal cord, and send the winter in the epidural fat of the spine around the thoracic and lumbar region.

The migration is then initiated in the spring and warbles then begin to form along the back of the host.

Test yourself with the Myiasis Producing Flies Flashcards

Myiasis Producing Flies Flashcards

Literature Search

CABI logo.jpg


Use these links to find recent scientific publications via CAB Abstracts (log in required unless accessing from a subscribing organisation).


Hypoderma spp. publications