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Dacetinops
| Dacetinops | |
|---|---|
| |
| Dacetinops cibdelus | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Myrmicinae |
| Tribe: | Crematogastrini |
| Alliance: | Vollenhovia genus group |
| Genus: | Dacetinops Brown & Wilson, 1957 |
| Type species | |
| Dacetinops cibdelus | |
| Diversity | |
| 7 species (Species Checklist, Species by Country)
| |
Identification
Brown and Wilson (1957) - worker Small myrmicine ant, apparently closest to Lachnomyrmex of the American tropics. Body compact, integument hard and thick. Head subtriangular (with mandibles triangular), widest across occipital region, tapering toward mandibles. Antennal scrobes present, deep and distinctly scrobes near midlength of head. Antennae 11-segmented, with a fairly distinct 3-segmented club. Both sets of palpi 2-segmented. Clypeus convex, obscurely bicarinate, its anterior border forming a broadly rounded translucent apron. Mandibles triangular, broad, with straight, crenulate masticatory margins. Alitrunk compact, arched and sutureless dorsally; propodeal dorsum and declivity almost continuous; a pair of small but distinct propodeal teeth present. Petiolar node sessile (a small condylar extension is visible from above), rounded above, and sloping from a median summit; postpetiole transversely ellipsoidal, rounded above. Gaster broad and somewhat depressed; first segment taking up nearly all the length, nearly circular in outline as seen from above, bluntly margined along the sides in front; remaining- segments small, retracted. Sting sclerotized, acute, exsertile. The lower halves of the petiole, postpetiole and anterior part of the first gastric segment bearing and covered by bulky festoons of whitish spongiform tissue. Sculpture consisting predominantly of very coarse longitudinal costation, becoming more reticulate on head, nodes and sides of alitrunk; posterior half of gaster smooth and shining, as is also the propodeal declivity. Mandibles striate. Legs and antennal scrobes finely and densely punctulate. Pilosity consisting of sparse, long, flexuous tapered hairs, mostly situated at definite bilateral positions over the body. Pubescence forming a thin cover mostly only on appendages. Color deep brownish red.
Queen Dealate, but with thoracic flight segments well developed, as usual for winged myrmicines of small size; wing stumps present. Size only slightly larger than worker; form, except as mentioned, similar to that of worker, with only the usual slight differences of caste. The compound eyes are larger than in the worker, but are still modest in size. Scutum and scutellum forming together a nearly plane platform, crossed by the distinct transscutal suture; prescutellum reduced to two small lobes, one on each side of the suture, so that the scutum and scutellum meet at the suture. Scuto-scutellar platform evenly costate longitudinally.
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See images of species within this genus |
Distribution
Distribution and Richness based on AntMaps
Species by Region
Number of species within biogeographic regions, along with the total number of species for each region.
| Afrotropical Region | Australasian Region | Indo-Australian Region | Malagasy Region | Nearctic Region | Neotropical Region | Oriental Region | Palaearctic Region | |
|---|---|---|---|---|---|---|---|---|
| Species | 0 | 0 | 7 | 0 | 0 | 0 | 1 | 0 |
| Total Species | 2841 | 1736 | 3045 | 932 | 835 | 4379 | 1741 | 2862 |
Biology
Castes
Morphology
Worker Morphology
Explore: Show all Worker Morphology data or Search these data. See also a list of all data tables or learn how data is managed.
- Antennal segment count: 11
- Antennal club: 2
- Palp formula: 2,2
- Total dental count: 9-15
- Spur formula: 0,0
- Sting: present
Male Morphology
- Explore: Show all Male Morphology data or Search these data. See also a list of all data tables or learn how data is managed.
• Antennal segment count 42349 • Antennal club 0 • Palp formula 2,2 • Total dental count 0 • Spur formula 0, 0
Karyotype
All Karyotype Records for Genus
- See additional details at the Ant Chromosome Database.
- Explore: Show all Karyotype data or Search these data. See also a list of all data tables or learn how data is managed.
| Taxon | Haploid | Diploid | Karyotype | Locality | Source | Notes |
|---|---|---|---|---|---|---|
| Dacetinops concinnus | 16 | Malaysia | Imai et al., 1983 |
Phylogeny
| Myrmicinae |
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See Phylogeny of Myrmicinae for details.
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- DACETINOPS [Myrmicinae: Stenammini]
- Dacetinops Brown & Wilson, 1957a: 1. Type-species: Dacetinops cibdelus, by original designation.
References
- Blaimer, B.B., Ward, P.S., Schultz, T.R., Fisher, B.L., Brady, S.G. 2018. Paleotropical diversification dominates the evolution of the hyperdiverse ant tribe Crematogastrini (Hymenoptera: Formicidae). Insect Systematics and Diversity 2(5): 3; 1-14 (doi:10.1093/isd/ixy013).
- Bolton, B. 1994. Identification guide to the ant genera of the world. Cambridge, Mass.: Harvard University Press, 222 pp. (page 106, Dacetinops in Myrmicinae, Stenammini)
- Bolton, B. 1995a. A taxonomic and zoogeographical census of the extant ant taxa (Hymenoptera: Formicidae). J. Nat. Hist. 2 29: 1037-1056 (page 1049, Dacetinops in Myrmicinae, Stenammini)
- Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp. (page 168, Dacetinops in Myrmicinae, Stenammini)
- Bolton, B. 2003. Synopsis and Classification of Formicidae. Mem. Am. Entomol. Inst. 71: 370pp (page 203, Dacetinops in Myrmicinae, Stenammini)
- Brown, W. L., Jr.; Wilson, E. O. 1957a. Dacetinops, a new ant genus from New Guinea. Breviora 77: 1-7. (page 1, Dacetinops as genus)
- Burchill, A.T., Moreau, C.S. 2016. Colony size evolution in ants: macroevolutionary trends. Insectes Sociaux 63, 291–298 (doi:10.1007/s00040-016-0465-3).
- Cantone S. 2018. Winged Ants, The queen. Dichotomous key to genera of winged female ants in the World. The Wings of Ants: morphological and systematic relationships (self-published).
- Dlussky, G. M.; Fedoseeva, E. B. 1988. Origin and early stages of evolution in ants. Pp. 70-144 in: Ponomarenko, A. G. (ed.) Cretaceous biocenotic crisis and insect evolution. Moskva: Nauka, 232 pp. (page 80, Dacetinops incertae sedis in Myrmicinae)
- Taylor, R. W. 1985. The ants of the Papuasian genus Dacetinops (Hymenoptera: Formicidae: Myrmicinae). Pp. 41-67 in: Ball, G. E. (ed.) Taxonomy, phylogeny and zoogeography of beetles and ants: a volume dedicated to the memory of Philip Jackson Darlington (page 41, Revision of genus)
- Wheeler, G. C.; Wheeler, J. 1985b. A simplified conspectus of the Formicidae. Trans. Am. Entomol. Soc. 111: 255-264 (page 257, Dacetinops in Myrmicinae, Leptothoracini)