Deinocerites

Males distinguished by elongate non-plumose antennae (unlike the plumose antennae typical of most male mosquitoes) and specialized front claws; both sexes associated with crab hole habitats. Similar to Culex in general body plan but divergent in antennal structure and ecological specialization.

Deep crab holes containing water; confined burrow environments where both larvae and adults occur.

Recorded from Brownsville, Texas; Córdoba, Colombia; distribution presumably circum-Caribbean and coastal regions where suitable crab hole habitats occur.

Larvae develop in water within deep crab holes; adults often remain within the burrow rather than dispersing widely.

Males rest on the water surface film and associate with pupae at the surface, holding them lightly with specialized front claws while sensing pupal spiracles with their antennae. Males perceive pupae at 1–2 cm distance; emerging females elicit strong responses from up to 15 cm away. Males fight for possession of emerging females, and mating may be established before the female fully emerges. Males also make slow exploratory flights near surfaces, with mating responses elicited by leg contact with resting insects. Chemical and tactile stimuli mediate these responses, with apparent lack of sex specificity in some contexts.

• CulexDeinocerites is phylogenetically an aberrant offshoot of Culex, sharing general body plan but distinguished by non-plumose male antennae and specialized crab hole ecology.
• Opifex fuscusBoth genera exhibit male attendance at pupae and attraction to emerging females, but Opifex relies primarily on visual cues in open sunlit pools rather than the chemical and tactile cues used by Deinocerites in dark burrow habitats.

• mosquito
• crab hole
• specialized mating behavior
• non-plumose antennae
• confined habitat
• emergence mating
• chemical communication
• tactile communication

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life
• Host Preferences of Deinocerites Pseudes Dyar & Knab
• Observations on the Mating Behaviour of the Crab Hole Mosquito Deinocerites cancer (Diptera: Culicidae)
• Deinocerites Spanius at Brownsville, Texas, with Notes on Its Biology and a Description of the Larva
• A Review of the Crabhole Mosquitoes of the Genus Deinocerites (Diptera, Culicidae), by J. N. Belkin and C. L. Hogue, Univ. of Calif. Pubs. in Entom., Vol. 14, No. 6, pp. 411-458, 41 figures. University of California Press, Apr. 22, 1959. Price $1.00. - Ecology of the Aspen Parkland of Western Canada, by R. D. Bird. Canada, Department of Agriculture, Publication 1066. - Conference of Biological Editors, Committee on Form and Style. 1960. Style manual for biological journals. Am. Inst. Biol. Sci., 2000 P Street, N.W., Washington, D.C. 92 p. $3 (clothbound). - The Ground-Beetles (Carabidae, excl. Cicindelinae) of Canada and Alaska, part 2, by Carl H. Lindroth. Opuscula Entomologica, Suppl. 20, 200, pp. Undated, but received at Ottawa in September, 1961. Distributed by the Entomological Society of Lund, Zoological Institute, Lund, Sweden. 20 Swedish crowns. - Hypothermia and the Effects of Cold. British Medical Bulletin, Vol. 17, No. 1, xvii + 78 pp. London, British Council, January 1961. Price 20s. - Laboratory Manual for Introductory Entomology, by Clifford J. Dennis, 65 pp., spirally bound. Wm. C. Brown Co., Dubuque, Iowa, 1959. Price $2.00. - Medical Arthropodology Laboratory Guide, by Dorald M. Allred, 84 pp., Spirally Bound. Burgess Publishing Co., Minneapolis, Minn., March 23, 1960. Price $3.00.