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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

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Journal Article

Journal Article

Morphology and chaetotaxy of the immature stages of the scorpionfly Panorpa liui Hua (Mecoptera: Panorpidae) with notes on its biology  [2013]

Jiang, Lu; Hua, Baozhen;

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The immature stages of the scorpionfly Panorpa liui Hua were obtained through rearing. The egg, larva and pupa were observed using light and scanning electron microscopy with special reference to the chaetotaxy of the first instar larva and pupa. The larva is of the eruciform type, with three pairs of thoracic legs and eight pairs of abdominal prolegs. The head of the larva bears a pair of compound eyes, each of which consists of 26 ommatidia. A fleshy tibial lobe is borne distally on the mesal side of the tibia of the thoracic legs. The telson bears a protrusile sucker of four anal forks. The pupa is exarate and decticous with sexual dimorphism in chaetotaxy and caudal segments. This species completes two generations per year, overwintering as the prepupal stage in the soil. The durations of egg, larva and pupa are 3–4, 13–19 and 8–10 days, respectively.
From the journal
Journal of natural history
ISSN : 1464-5262

Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2016
Volume:
1 v. 47
Issue:
41-42
Start Page:
2691
End Page:
2705
Publisher:
Taylor & Francis
All titles:
"Morphology and chaetotaxy of the immature stages of the scorpionfly Panorpa liui Hua (Mecoptera: Panorpidae) with notes on its biology"@eng
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Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2016
Volume:
1 v. 47
Issue:
41-42
Start Page:
2691
End Page:
2705
Publisher:
Taylor & Francis
All titles:
"Morphology and chaetotaxy of the immature stages of the scorpionfly Panorpa liui Hua (Mecoptera: Panorpidae) with notes on its biology"@eng