scholarly journals Protein expression parallels thermal tolerance and ecologic changes in the diversification of a diving beetle species complex

Heredity ◽  
2015 ◽  
Vol 116 (1) ◽  
pp. 114-123 ◽  
Author(s):  
A Hidalgo-Galiana ◽  
M Monge ◽  
D G Biron ◽  
F Canals ◽  
I Ribera ◽  
...  
Keyword(s):  
Protein Expression ◽  
Thermal Tolerance ◽  
Species Complex ◽  
Beetle Species ◽  
Diving Beetle

scholarly journals Review of lady beetles in the Cycloneda germainii species complex (Coleoptera; Coccinellidae: Coccinellinae: Coccinellini) with descriptions of new and unusual species from Chile and surrounding countries

Zootaxa ◽  
2006 ◽  
Vol 1311 (1) ◽  
pp. 13 ◽  
Author(s):  
GUILLERMO GONZÁLEZ ◽  
NATALIA J. VANDENBERG
Keyword(s):  
New Species ◽  
Species Complex ◽  
Lady Beetle ◽  
Valid Species ◽  
Beetle Species ◽  
Lady Beetles ◽  
Three New Species

A complex of lady beetle species including Cycloneda germainii (Crotch) is reviewed and seven valid species recognized, including C. germainii, C. eryngii (Mulsant), C. sicardi (Brèthes), C. boliviana (Mulsant), and three new species, C. lacrimosa González & Vandenberg, n. sp., C. disconsolata Vandenberg & González, n. sp., and C. patagonica González & Vandenberg, n. sp.

Limbodessus skalei sp. nov., a new diving beetle species from the west Papuan Archipelago (Coleoptera: Dytiscidae, Bidessini)

Zootaxa ◽  
2020 ◽  
Vol 4763 (4) ◽  
pp. 587-592
Author(s):  
LARS HENDRICH ◽  
SURIANI SURBAKTI ◽  
MICHAEL BALKE
Keyword(s):  
New Guinea ◽  
The Other ◽  
Beetle Species ◽  
The West ◽  
West Papua ◽  
Diving Beetle

Here we describe Limbodessus skalei sp. nov. from the island of Waigeo, off the coast of West Papua. It can be easily distinguished from the nearby New Guinea mainland species as well as the other members of the genus by its small size and testaceous elytra with conspicuous darker broad basal and subapical patches. Altogether four Limbodessus species are now known from the New Guinea region. 

Tepuidessus grulai sp. nov. from Acopán Tepui in Venezuela (Coleoptera: Dytiscidae: Hydroporinae: Bidessini)

Zootaxa ◽  
2018 ◽  
Vol 4434 (3) ◽  
pp. 561 ◽  
Author(s):  
JAN KODADA ◽  
LARS HENDRICH ◽  
MICHAEL BALKE
Keyword(s):  
Beetle Species ◽  
Diving Beetle

We report the discovery of the second Bidessini diving beetle species from a Venezuelan table-top mountain (also referred to as "tepui"). Tepuidessus grulai sp. nov. from Acopán Tepui can easily be separated from Tepuidessus breweri Spangler, 1981, described from Roraima Tepui, about 140 km apart from Acopán Tepui, by its much broader habitus with distinct outline discontinuity between pronotum and elytra, well developed, long and deep basal striae on pronotum and elytra and by the unbordered apical abdominal ventrite. 

Congeneric Predaceous Diving Beetle Species Fail to Segregate in a Floodplain System: A Case of Amplified Sympatry

2017 ◽  
Vol 46 (3) ◽  
pp. 494-501 ◽  
Author(s):  
Courtney Holt McDaniel ◽  
Joseph V. McHugh ◽  
Darold P. Batzer
Keyword(s):  
Beetle Species ◽  
System A ◽  
Diving Beetle

scholarly journals Male clasping ability, female polymorphism and sexual conflict: fine-scale elytral morphology as a sexually antagonistic adaptation in female diving beetles

2013 ◽  
Vol 10 (86) ◽  
pp. 20130409 ◽  
Author(s):  
Kristina Karlsson Green ◽  
Alexander Kovalev ◽  
Erik I. Svensson ◽  
Stanislav N. Gorb
Keyword(s):  
Sexual Conflict ◽  
Adhesive Force ◽  
Beetle Species ◽  
Female Polymorphism ◽  
Diving Beetles ◽  
Males And Females ◽  
Suction Cups ◽  
Female Morph ◽  
Diving Beetle ◽  
Sexually Antagonistic Coevolution

During sexual conflict, males and females are expected to evolve traits and behaviours with a sexually antagonistic function. Recently, sexually antagonistic coevolution was proposed to occur between male and female diving beetles (Dytiscidae). Male diving beetles possess numerous suction cups on their forelegs whereas females commonly have rough structures on their elytra. These rough structures have been suggested to obstruct adhesion from male suction cups during mating attempts. However, some diving beetle species are dimorphic, where one female morph has a rough elytra and the other has a smooth elytra. Here, we used biomechanics to study the adhesive performance of male suction cups on the female morphs in two diving beetle species: Dytiscus lapponicus and Graphoderus zonatus . We compared adhesion on the rough and the smooth female morphs to infer the function of the rough elytral modifications. We found that the adhesive force on the rough structures was much lower than on other surfaces. These findings support the suggestion of sexual conflict in diving beetles and a sexually antagonistic function of the rough female structures. In addition, males differed in their adhesive capacity on different female surfaces, indicating a male trade-off between adhering to smooth and rough female morphs.

scholarly journals Pheromones of three ambrosia beetles in the Euwallacea fornicatus species complex: ratios and preferences

2017 ◽  
Author(s):  
Miriam F Cooperband ◽  
Allard A Cossé ◽  
Tappey H Jones ◽  
Daniel Carrillo ◽  
Kaitlin Cleary ◽  
...  
Keyword(s):  
Cryptic Species ◽  
Species Complex ◽  
Ecological Function ◽  
The Other ◽  
Beetle Species ◽  
Binary Blend ◽  
Ambrosia Beetles ◽  
Symbiotic Fungi ◽  
Laboratory Colonies ◽  
Species Specific

Three cryptic species in the Euwallacea fornicatus species complex were reared in laboratory colonies and investigated for the presence of pheromones. Collections of volatiles from combinations of diet, fungus, beetles, and galleries from polyphagous shot hole borer (Euwallacea sp. #1) revealed the presence of 2-heneicosanone and 2-tricosanone only in the presence of beetles, regardless of sex. Subsequent examination of volatiles from the other two species, tea shot hole borer (Euwallacea sp. #2) and Kuroshio shot hole borer (Euwallacea sp. #5), revealed these two ketones were present in all three species but in different ratios. In dual choice olfactometer behavioral bioassays, mature mated females were strongly attracted to a synthetic binary blend of ketones matching their own natural ratios. However, females in each species were repelled by ketone blends in ratios corresponding to the other two species. Males of each species responded similarly to females when presented with ratios matching their own or the other two species. The presence of these compounds in the three beetle species, in ratios unique to each species, and their strong species-specific attraction and repellency, suggests they are pheromones. The ecological function of these pheromones is discussed. In addition to the pheromones, the previously known attractant (1S,4R)-p-menth-2-en-1-ol (also known as quercivorol) was discovered in the presence of the fungal symbionts, but not in association with the beetles. Quercivorol was tested in a dual-choice olfactometer and was strongly attractive to all three species. This evidence suggests quercivorol functions as a kairomone for members of the E. fornicatus species complex, likely produced by the symbiotic fungi.

Thermal tolerance differs between co-occurring congener beetle species in marine supratidal rockpools

2021 ◽  
Author(s):  
JM Mirón-Gatón ◽  
M Botella-Cruz ◽  
AJ García-Meseguer ◽  
A Millán ◽  
J Velasco
Keyword(s):  
Thermal Tolerance ◽  
Beetle Species
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