Aha (wasp)

Aha is a genus of wasp. As of 2017, it consists of two species: A. ha, and A. evansi,[1] and is endemic to Australia.[2] The American entomologist Arnold S. Menke named and circumscribed the genus in 1977 for his newly-described species A. ha and A. evansi.

Aha
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Crabronidae
Subfamily: Crabroninae
Tribe: Miscophini
Genus: Aha
Menke, 1977
Type species
Aha ha
Menke, 1977
Species
  • A. ha Menke, 1977
  • A. evansi Menke, 1977
A. ha distribution
A. evansi distribution

Taxonomic history

In 1977, the American entomologist Arnold S. Menke wrote a paper circumscribing the new genus Aha which was accompanied by his descriptions of its two species: A. ha and A. evansi.[3] Howard Ensign Evans and Robert Matthews had provided him with specimens of this new genus; they had collected them during expeditions in Australia in 1969–1970 and 1972.[4] Menke designated A. ha to be the genus's type species.[5] Menke only had access to male specimens when writing his description of the genus and both species.[6] Ole C. Lomholdt wrote a description of the female A. evansi in 1980.[7]

When Menke named Aha, he placed it in the tribe Miscophini due to its ocelli.[5] Lomholdt argued the genus should be in the tribe Larrini.[8] As of 2017, Aha is classified in the Miscophini tribe, of the Crabroninae subfamily of the Crabronidae family.[1][9]

Etymology

The etymology listed in Menke's 1977 paper is that "Aha is an arbitrary combination of letters chosen for brevity".[5] He later stated his first reaction when seeing one of these new specimens was "Aha, a new genus", making use of the English interjection aha.[10] Due to its name, it has appeared in various lists and articles on interesting or humorous taxon names. Richard Conniff wrote an article for the magazine Science 82 discussing scientific names for taxa; he ended it with a paragraph on what he called "the topper", discussing the genus Aha.[11][12] In 1993, Aha was both included in a list authored by Menke of animal taxa names he considered "funny" or "curious"[13] and in an article by May Berenbaum in American Entomologist on creative names for insect taxa.[14]

Distribution

A. ha's type locality is in Kununurra, Western Australia; all specimens in the type series were found in the same area.[15] The type locality for A. evansi is about 12–21 miles (19–34 km) north of Ouyen, Victoria.[15] Additional specimens were found 15–20 miles (24–32 km) south of Ouyen and 4 miles (6.4 km) south of Sherlock, South Australia.[2]

Description

Lomholdt listed six autapomorphic features of the genus. Both sexes have outer claws which are much bigger than their inner claws. They have a compressed labio-maxillairy complex. Aha neither have vosella nor do they have aedeagal teeth. The genus is also characterized by a medial sulcus on its pronotal collar. The media on its forewing diverges proximally to the cu-a cross-vein.[16]

In Menke's key to genera in Miscophini, Aha was coupled with Lyroda. His diagnostic features included the placement of the forewing media divergence, a prementum which was compressed laterally, and claws of unequal sizes.[17]

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References
  1. Various contributors (2017). "Aha". Hymenoptera Online (HOL). The Ohio State University. Retrieved 27 November 2017.
  2. Lomholdt (1980), p. 241.
  3. Menke (1977).
  4. Menke (1977), p. 671.
  5. Menke (1977), p. 673.
  6. Menke (1977), p. 672.
  7. Lomholdt (1980).
  8. Menke (1977), p. 244.
  9. Pulawski, Wojciech J. (15 July 2014). "Family Group Names and Classification" (PDF). Archived (PDF) from the original on 15 June 2016.
  10. Evans, Howard E. (1983). Menke, Arnold S. (ed.). "Tales from the Outback: The Discovery of Aha ha (Sphecidae, Miscophini)" (PDF). Sphecos. 7: 14.
  11. Conniff, Richard (June 1982). "The name game". Crosscurrents. Science 82. 3 (5): 66–67. ISSN 0193-4511.
  12. "The Crosscurrents" (PDF). Information Crossfile. Park Science: A Resource Management Bulletin. U.S. Department of the Interior. 2 (4): 17. 1982. Archived from the original (PDF) on 28 June 2017. Retrieved 28 November 2018.
  13. Menke, Arnold S. (1993). "Funny or Curious Zoological Names". BOGUS. -2: 24. ISSN 1072-2556.
  14. Berenbaum, May (1993). "'Apis, Apis, Bobapis ... '". Buzzwords. American Entomologist. 39 (3): 133. doi:10.1093/ae/39.3.133. ISSN 1046-2821.
  15. Menke (1977), p. 675.
  16. Lomholdt (1980), p. 242.
  17. Menke (1977), p. 681.

Works cited
  • Lomholdt, Ole C. (1980). "The female Aha evansi Menke, 1977 (Hymenoptera: Sphecidae, Larrinae)". Entomologica Scandinavica. 11 (2): 241–244. doi:10.1163/187631280X00581.CS1 maint: ref=harv (link)
  • Menke, A. S. (1977). "Aha, a new genus of Australian Sphecidae, and revised key to the world genera of the tribe Miscophini (Hymenoptera, Sphecidae, Larrinae)". Polskie Pismo Entomologiczne. 47: 671–681. ISSN 0032-3780.CS1 maint: ref=harv (link)
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