Gnatocerus cornutus

TaxID: 1553328

Basic Information

Gnatocerus cornutus

Broad-Horned Flour Beetle, Broad-horned Flour Beetle

Gnatocerus cornutus, or the broadhorned flour beetle, is a common species of beetle in the Tenebrionidae family. It is distributed worldwide and is commonly found in warm, tropical regions, preferring grains, yeasts, and flours as its main diet. The total development time is about 47 days. G. cornutus is predominately found in mills as a storage pest and has a wide distribution. The beetle undergoes four developmental stages, with diet quality and larval density influencing development rates and body size. Nutrition plays a crucial role, with higher-calorie diets leading to enhanced survival and faster development. Genetics also impact traits like mandible length, regulated by specific peptides and transcription factors. Male-male competition for mates is fierce, with larger weapons indicating better fighting ability and increased reproductive success. Female mate choice varies based on competitive or non-competitive mating situations. Environmental factors like nutritional availability influence offspring sex ratios and reproductive strategies like polyandry. Oviposition patterns and larval development are also affected by environmental conditions, with larval size determining pupation success. The biology, behavior, and reproductive strategies of G. cornutus are finely tuned to its ecological niche and environmental pressures.

from Wikipedia

Taxonomic Information

Metazoa

Arthropoda

Insecta

Coleoptera

Tenebrionidae

Gnatocerus

cornutus

unclassified

Photos (5 photos)

Gnatocerus cornutus
c
(c) strongbear147@BY-NC
Gnatocerus cornutus
c
(c) R.E.Llanos@BY-NC-SA
Gnatocerus cornutus
c
(c) strongbear147@BY-NC
Gnatocerus cornutus
c
(c) strongbear147@BY-NC
Gnatocerus cornutus
c
(c) strongbear147@BY-NC

Morphological Features

No morphological description available.

Host Plants (0 host plants)

Data sources: EPPO Global Database and relevant literature.

No host plants available.

Quarantine Status (1 records)

Data sources: IPPC website and national quarantine websites; verified by human review.

Country Status Year Added
Egypt Disinfected-Admitted —

Distribution (26 countries)

Data Sources: EPPO Global Database and GBIF.

26
Present
0
Absent
0
Unknown/Other
Country Status State
Argentina Present —
Australia Present —
Austria Present —
Brazil Present —
Canada Present —
Switzerland Present —
Costa Rica Present —
Germany Present —
Denmark Present —
Spain Present —
Page 1 of 3

Distribution Map (Latitude and longitude coordinates sourced from GBIF.)

Download CSV

Genomes (1 records)

Data source: NCBI.

Assembly Accession Assembly Level Genome Size(Mb) Contig N50(Kb) Scaffold N50(Kb) BUSCO% Downloads Actions
GCA_029298725.1 Chromosome 342 8578 17438 -

Transcriptomes (3 records)

Data source: NCBI.

Run ID Tissue Developmental Stage Sex Read Count Location Actions
SRR14070864 Head and Prothorax Adult male 71129236 USA:Texas
SRR14070863 Head and Prothorax Adult female 59306698 USA:Texas
SRR14070862 Head and Prothorax Adult female 64831677 USA:Texas

DNA Barcodes (0 records)

View all

Data source: BOLD.

No DNA barcode records available.

Literature