Dasymutilla gorgon
(Blake, 1871)
Dasymutilla gorgon is a of velvet ant ( Mutillidae) native to central North America. Like all mutillids, it is a solitary with wingless females and winged males. The species occurs from Colorado to Louisiana, inhabiting arid and semi-arid regions. As a member of the Dasymutilla, females likely exhibit aposematic coloration warning of their potent sting.
Pronunciation
How to pronounce Dasymutilla gorgon: //ˌdeɪsaɪmjuˈtɪlə ˈɡɔːrɡən//
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Habitat
Arid and semi-arid environments including prairies, deserts, and open sandy areas. Based on observations of , likely found in sandy soils suitable for nesting sites.
Distribution
Central North America from Colorado to Louisiana. Records from USA: Colorado, Kansas, Louisiana, New Mexico, Oklahoma, and Texas.
Host Associations
- Bembix - Based on documented for congeneric Dasymutilla bioculata; specific host records for D. gorgon not confirmed
- Microbembex - Based on documented for congeneric Dasymutilla bioculata; specific host records for D. gorgon not confirmed
Life Cycle
Females are of ground-nesting and bees. They enter burrows and lay on or near host larvae or pupae. The velvet ant larva consumes the host, then pupates and emerges as an . Males are winged and seek nectar, pollen, and mates.
Behavior
Females run rapidly across the ground in search of nests. Both sexes produce audible stridulation by rubbing abdominal segments together, likely as a defensive warning. Females possess a thick that deflects bites and stings from host defenders.
Ecological Role
of ground-nesting Hymenoptera, potentially regulating of sand wasps and other solitary bees and . Part of Müllerian mimicry complexes involving other velvet ants and mimetic .
Human Relevance
Females can deliver a painful sting if handled, serving as a warning example of aposematic defense. Not aggressive but defensive when disturbed. No documented economic importance.
Similar Taxa
- Dasymutilla bioculataSimilar geographic range and preferences; distinguished by specific color pattern differences and male genitalia
- Dasymutilla occidentalisShares bright aposematic coloration warning pattern; D. occidentalis typically more eastern in distribution with distinct color pattern
- Dasymutilla gloriosaBoth in Dasymutilla; D. gloriosa females covered in dense white setae resembling thistledown, unlike typical coloration of D. gorgon
More Details
Sexual dimorphism
As with all mutillids, males possess two pairs of wings and are capable of , while females are wingless. Males and females may differ substantially in coloration, historically causing taxonomic confusion.
Sources and further reading
- BugGuide
- Wikipedia
- GBIF taxonomy match
- iNaturalist taxon
- NCBI Taxonomy
- Bug Eric: Wasp Wednesday: Dasymutilla bioculata
- The gloriously dichromatic Dasymutilla gloriosa | Beetles In The Bush
- A sting to kill a cow? Red velvet ant, a.k.a. cow killer, Dasymutilla occidentalis — Bug of the Week
- Uncategorized | Blog - Part 41
- Pensoft blog - Part 147
- Uncategorized | Blog - Part 29