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Nylanderia hystrix
| Nylanderia hystrix | |
|---|---|
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| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Hymenoptera |
| Family: | Formicidae |
| Subfamily: | Formicinae |
| Tribe: | Lasiini |
| Genus: | Nylanderia |
| Species: | N. hystrix |
| Binomial name | |
| Nylanderia hystrix (Trager, 1984)
| |
Nylanderia hystrix nests are commonly found under stones in desert washes. Reproductive flights are not known for this species, although it is suspected they follow the pattern of other Nearctic species (Trager, 1984). it apparently does not occur sympatrically with Nylanderia bruesii in the Sonoran Desert.
Identification
Kallal & LaPolla (2012) - Uniformly yellow with numerous strongly contrasting black macrosetae. This desert species has a very distinctive appearance. Being a large, uniformly yellow species with strikingly contrasting black macrosetae all over its body, it cannot easily be confused with any other Nearctic Nylanderia species.
Identification Keys including this Taxon
Distribution
This species is known from the Mojave and Great Basin deserts.
Latitudinal Distribution Pattern
Latitudinal Range: 38.7946° to 31.723839°.
| North Temperate |
North Subtropical |
Tropical | South Subtropical |
South Temperate |
- Source: AntMaps
Distribution based on Regional Taxon Lists
Nearctic Region: United States (type locality).
Neotropical Region: Mexico.
Distribution based on AntMaps
Distribution based on AntWeb specimens
Check data from AntWeb
Countries Occupied
| Number of countries occupied by this species based on AntWiki Regional Taxon Lists. In general, fewer countries occupied indicates a narrower range, while more countries indicates a more widespread species. |
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Estimated Abundance
| Relative abundance based on number of AntMaps records per species (this species within the purple bar). Fewer records (to the left) indicates a less abundant/encountered species while more records (to the right) indicates more abundant/encountered species. |
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Habitat
They can be found at elevations between 500 and 1500 m. Habitats in which they have been collected range from creosote-sagebrush deserts to pine-juniper woodlands (Trager, 1984).
Biology
Castes
Worker
Images from AntWeb
   
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| Worker. Specimen code casent0106037. Photographer Michael Branstetter, uploaded by California Academy of Sciences. | Owned by UCDC, Davis, CA, USA. |
Queen
   
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| . | Owned by Museum of Comparative Zoology. |
Nomenclature
The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.
- hystrix. Paratrechina hystrix Trager, 1984b: 134, figs. 28, 30, 40 (w.q.m.) U.S.A. Combination in Nylanderia: LaPolla, Brady & Shattuck, 2010a: 127. See also: Kallal & LaPolla, 2012: 23.
Type Material
- Holotype, worker, Grapevine Ranger Station, Death Valley National Monument, Inyo County, California, United States, Los Angeles County Museum of Natural History.
- Paratype, 1 worker, Grapevine Ranger Station, Death Valley National Monument, Inyo County, California, United States, Los Angeles County Museum of Natural History.
- Paratype, 1 worker, Grapevine Ranger Station, Death Valley National Monument, Inyo County, California, United States, Museum of Comparative Zoology.
Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.
Description
Worker
Kallal & LaPolla (2012) - Measurements (n=10) TL: 2.51–3.10; HW: 0.56–0.66; HL: 0.68–0.82; EL: 0.15–0.19; SL: 0.81–1.05; PW: 0.40–0.49; WL: 0.82–1.13; GL: 0.87–1.21; PH: 0.22–0.31; PFL: 0.68–0.76; PFW: 0.13–0.18. SMC: 10–29; PMC: 8–16; MMC: 4–10. Indices: CI: 80–87; REL: 21–25; SI: 119–132; FI: 91–103.
Overall uniformly yellow to brownish yellow in color; mesocoxae and metacoxae same color as mesosoma; cuticle smooth and shiny; cephalic pubescence sparse; mesosoma and gastral pubescence virtually absent; macrosetae black, contrasting strongly with cuticle color; macrosetae numerous on head, mesosoma, and gaster. Head ovate; posterior margin emarginated medially; scapes surpass posterior margin by first 3–4 funicular segments; ocelli apparent. Pronotal anterior face approximately 45° or less; pronotum inflected with pronotal anterior face shorter than pronotal dorsal face; anterior margin of mesonotum continuous with pronotal margin; propodeum with dome-like dorsal face and long declivitous face.
Queen
Kallal & LaPolla (2012) - Measurements (n=1) TL: 4.37; HW: 0.82; HL: 0.91; EL: 0.23; SL: 1.03; PW: 0.78; MW: 0.72; WL: 1.50; GL: 1.95; PH: 0.39; PFL: 0.88; PFW: 0.19. SMC: 26; PMC: 17; MMC: 12; MtMC: 4. Indices: CI: 90; REL: 25; SI: 112; FI: 97.
Uniform yellow to brownish yellow in color; cuticle smooth and shiny; body with dense pubescence; macrosetae black and numerous. Head nearly as broad as it is long; median ridge on clypeus; posterior margin with shallow medial emargination; scapes surpass posterior margin by first 3 funicular segments. Propodeum with very short dorsal face and long declivitous face.
Male
Kallal & LaPolla (2012) - Measurements (n=4) TL: 2.35–2.58; HW: 0.51–0.55; HL: 0.57–0.60; EL: 0.18–0.19; SL: 0.71–0.83; PW: 0.53–0.58; MW: 0.45–0.52; WL: 0.84–0.94; GL: 0.85–1.04; PH: 0.23–0.33; PFL: 0.62–0.70; PFW: 0.12–0.14; PL: 0.24–0.26. SMC: 15–35; MMC: 8–18; MtMC: 3–6. Indices: CI: 86–91; REL: 31–33; SI: 120–145; FI: 106–117.
Yellowish-brown with dark brown gaster; mandibles, scapes, legs, and parameres brownish yellow; cuticle smooth and shiny; cephalic pubescence sparse; mesosoma and gastral pubescence absent; macrosetae black and numerous. Head longer than it is broad; eyes convex, extending beyond lateral margins of the head in full face view; scapes surpass posterior margin by first 4–5 funicular segments; inner mandibular margin long and straight; basal angle approximately 90°; smooth masticatory margin with large apical tooth. Mesosoma enlarged to accommodate flight muscles; in lateral view, pronotal margin short and relatively straight with slight inflection towards mesonotal margin; propodeum with dorsal and declivitous faces of approximately equal lengths. Genitalia: parameres laterally oriented, triangular; digitus slightly longer than parameres, as long as aedeagal valves, angled ventrally; cuspis about half as long; both structures with rounded teeth where they meet; aedeagal valves with thickened distal tips, teeth absent; ninth sternite very long and broad with very reduced lateral apodemes and very short ventral apodeme.
References
- Kallal, R.J. & LaPolla, J.S. 2012. Monograph of Nylanderia (Hymenoptera: Formicidae) of the World, Part II: Nylanderia in the Nearctic. Zootaxa 3508, 1-64.
- Trager, J. C. 1984b. A revision of the genus Paratrechina (Hymenoptera: Formicidae) of the continental United States. Sociobiology 9: 49-162 (page 134, figs. 28, 30, 40 worker, queen, male described)
References based on Global Ant Biodiversity Informatics
- Johnson R. Personnal Database. Accessed on February 5th 2014 at http://www.asu.edu/clas/sirgtools/resources.htm
- Johnson, R.A. and P.S. Ward. 2002. Biogeography and endemism of ants (Hymenoptera: Formicidae) in Baja California, Mexico: a first overview. Journal of Biogeography 29:10091026/
- Kallal R. J, and J. S. Lapolla. 2012. Monograph of Nylanderia (Hymenoptera: Formicidae) of the world, part II: Nylanderia in the Nearctic. Zootaxa 3508: 1-64.
- Trager J. C. 1984. A revision of the genus Paratrechina (Hymenoptera: Formicidae) of the continental United States. Sociobiology 9: 49-162
- Vásquez-Bolaños M. 2011. Lista de especies de hormigas (Hymenoptera: Formicidae) para México. Dugesiana 18: 95-133
- Wheeler G. C., and J. Wheeler. 1986. The ants of Nevada. Los Angeles: Natural History Museum of Los Angeles County, vii + 138 pp.