Food remains in the guts of Coccinella septempunctata (Coleoptera: Coccinellidae) adults and larvae

Title:

Food remains in the guts of Coccinella septempunctata (Coleoptera: Coccinellidae) adults and larvae

Creator:

Triltsch, Holger

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:984b6771-8fda-4624-8e15-966715ac52a0
uuid:984b6771-8fda-4624-8e15-966715ac52a0

Subject:

zoologie, entomologie, hmyz, brouci, Coccinellidae, Coccinella septempunctata, dospělci, larvy, výživa, potravní zbytky, střevní analýza, kořist, Aphididae, Chrysomelidae, 595.2/.7, and 591.1

Type:

article, bibliography, model:article, and TEXT

Format:

print, text, and regular print

Description:

From 1994-1997 the food of Coccinella septempunctata L. was investigated on the basis of gut dissections of adults and larvae collected in the field. Additionally, the gut contents of adults fed under laboratory conditions were investigated. The likelihood of recovering different prey types during gut dissection was variable, which will be illustrated by presenting some common prey fragments. The food eaten by adult C. septempunctata throughout a year was studied at a locality in Berlin-Staaken. Ladybirds were collected from March 1994 until November 1997 in different crops and habitats on roughly a monthly basis. Aphid feeding was detectable from April until October. In May and June they were the most frequent food type. Fungal spores, in most cases the conidia of Alternaria spp., became most frequent in July. Additionally non-aphid arthropods were frequently preyed upon in July. A very common non-aphid prey item were thrips. Pollen was important in May and September. Comparing the food components of newly emerged adults with those of overwintered adults some remarkable differences were detected. In newly emerged adults non-aphid arthropods and fungal spores were much more frequent than in overwintered adults whereas aphids were less frequently found. The diet of adults and larvae was also investigated in June and July in cereal fields at two other localities, Northern Flaeming and Magdeburger Boerde. No difference in adult diet was found between the three localities. The composition of the larval diet was relatively similar to that of the adults., Holger Triltsch, and Lit

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Source:

European Journal of Entomology | 1999 Volume:96 | Number:4

Harvested from:

CDK

Metadata only:

false