Frass Analysis of Diets of Aphidophagous Lady Beetles (Coleoptera: Coccinellidae) in Utah Alfalfa Fields

2010 ◽  
Vol 39 (2) ◽  
pp. 576-582 ◽  
Author(s):  
L. Nicole Davidson ◽  
Edward W. Evans
Keyword(s):  
Lady Beetles ◽  
Aphidophagous Lady Beetles

scholarly journals Limited Transmission of the Ectoparasitic FungusHesperomyces virescensbetween Lady Beetles

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Ted E. Cottrell ◽  
Eric W. Riddick
Keyword(s):  
Harmonia Axyridis ◽  
Horizontal Transmission ◽  
Coccinella Septempunctata ◽  
Lady Beetle ◽  
Coleomegilla Maculata ◽  
Beetle Species ◽  
Target Species ◽  
Lady Beetles ◽  
Aphidophagous Lady Beetles ◽  
Bodily Contact

The ectoparasitic fungusHesperomyces virescensThaxter (Ascomycota: Laboulbeniales) commonly infects the invasive lady beetleHarmonia axyridis(Pallas) and several other aphidophagous lady beetles in North America and Europe. We tested the hypothesis that bodily contact between adults of different lady beetle species supports horizontal transmission ofH. virescens. We used laboratory assays to determine whetherH. axyridisorOlla v-nigrum(Mulsant) harboringH. virescens(i.e., source beetles) transmit the fungus to noninfected target beetlesH. axyridis,O. v-nigrum,Coccinella septempunctataL.,Coleomegilla maculata(De Geer), orHippodamia convergensGuerin-Meneville. Results indicate that intraspecific transmission (i.e., for the source beetlesH. axyridisandO. v-nigrum) was common but interspecific transmission (i.e., from sourceH. axyridisorO. v-nigrumto target species) was low. Interspecific transmission occurred at low rates fromH. axyridisto bothC. septempunctataandO. v-nigrumand fromO. v-nigrumto bothC. septempunctataandH. convergens. Based upon our laboratory assays of forced pairings/groupings of source and target beetles, we predict that horizontal transmission ofH. virescensbetween species of aphidophagous coccinellids is possible but likely rare.

scholarly journals Interactions of ants with native and invasive lady beetles and the role of chemical cues in intraguild interference

Chemoecology ◽  
2021 ◽  
Author(s):  
Roman Bucher ◽  
Laura M. Japke ◽  
Ayse Gül Ünlü ◽  
Florian Menzel
Keyword(s):  
Chemical Cues ◽  
Harmonia Axyridis ◽  
Species Recognition ◽  
Lady Beetle ◽  
Lasius Niger ◽  
Beetle Species ◽  
Beetle Elytra ◽  
Lady Beetles ◽  
Ant Aggression

AbstractThe predator-predator naïveté hypothesis suggests that non-native predators benefit from being unknown to native predators, resulting in reduced intraguild interference with native predators. This novelty advantage should depend on the ability of native predators to recognize cues of non-native predators. Here, we compared ant aggression and lady beetle reaction in four native and the invasive lady beetle species Harmonia axyridis. In addition, we tested whether lady beetle cuticular hydrocarbons (CHCs) are involved in species recognition, which might explain naïveté if the invasive species has a specific CHC profile. To this end, we conducted behavioral assays confronting two native ant species with both living lady beetles and lady beetle elytra bearing or lacking CHCs of different lady beetle species. Finally, we characterized CHC profiles of the lady beetles using GC–MS. In general, the aggression of Lasius niger was more frequent than that of Myrmica rubra and L. niger aggression was more frequent towards most native lady beetle species compared to H. axyridis. The removal of CHCs from lady beetle elytra reduced aggression of both ant species. If CHCs of respective lady beetle species were added on cue-free elytra, natural strength of L. niger aggression could be restored. CHC analyses revealed a distinct cue composition for each lady beetle species. Our experiments demonstrate that the presence of chemical cues on the surface of lady beetles contribute to the strength of ant aggression against lady beetles. Reduced aggression of L. niger towards H. axyridis and reduced avoidance behavior in H. axyridis compared to the equally voracious C. septempunctata might improve the invasive lady beetle’s access to ant-tended aphids.

Rapid evolution of a divergent ecogeographic cline in introduced lady beetles

2017 ◽  
Vol 31 (5) ◽  
pp. 695-705 ◽  
Author(s):  
Eric M. O’Neill ◽  
Erik J. Hearn ◽  
Jessica M. Cogbill ◽  
Yukie Kajita
Keyword(s):  
Rapid Evolution ◽  
Lady Beetles

INHERITANCE IN LADY BEETLES

1943 ◽  
Vol 34 (11) ◽  
pp. 329-337 ◽  
Author(s):  
A. FRANKLIN SHULL
Keyword(s):  
Lady Beetles
Sign in / Sign up

Export Citation Format

Share Document