Stylotermes orthognathus 直颚杆白蚁
- Type locality
- China: Guizhou Province: Libo County
- Distribution
- China
List： English (genus page) · 中文 · Español
Summary
Stylotermes orthognathus is a species of the genus Stylotermes, in the family STYLOTERMITIDAE. The species was described by Ping & Xu in 1984; the type locality is China: Guizhou Province: Libo County. Distribution: China.
Etymology
Genus name Stylotermes: From Greek stylos (pillar, style) + Latin termes.
Specific epithet orthognathus: Greek orthos (straight) + gnathos (jaw), straight-jawed
Taxonomic position
- Family: STYLOTERMITIDAE — 1 genus, 45 species
- Genus: Stylotermes — 45 species
- Type species of the genus: Stylotermes fletcheri
Distribution
- Distribution records: China
The record above follows the wording of the original data; no geocoding or standardized place names have been applied.
Recorded in Fauna Sinica
The morphological and biological accounts below are taken from Fauna Sinica and related literature; only structure and punctuation have been standardized here.
Morphology
Soldier
Head reddish brown, mandibles blackish brown, labrum yellowish brown, pronotum yellowish brown with darker margins, legs pale yellowish brown, tibiae and tarsi darker. The median area of the pronotum bears about 20 long hairs. Head capsule rectangular, the fontanelle pore distinct but projecting scarcely above the surface. Antennae 14-segmented, segment 3 strongly sclerotised and longer than segment 2; the flange over the antennal socket is equally strongly sclerotised and remains far from the lateral margins of the head. Compound eyes pale yellow, their distance from the antennal socket about equal to the short diameter of the eye. Labrum subcircular, the labral apex slightly flattened. Mandibles short, the apices directed straight forward, the length of the left mandible about equal to the greatest width of the head and 0.55–0.61 times the length of the head capsule. Anterior margin of the pronotum shallowly concave in a broad V, the lateral margins sloping steeply backwards, the posterior margin hardly concave at the centre, the median longitudinal line visible.
Alate
Worker
Nymph
Abstract (from the source)
The soldier's head is reddish brown, the mandibles blackish brown, the labrum yellowish brown, and the pronotum yellowish brown with a darker rim; the legs are pale yellowish brown, deeper on tibiae and tarsi. About twenty long setae stand on the middle of the pronotum. The capsule is rectangular with a distinct but barely raised fontanelle, and antennae have 14 segments, the heavily sclerotized third longer than the second. The left mandible, short and straight-tipped, equals the greatest head width and measures 0.55 to 0.61 of the capsule length.
Biology
Host plant: Chinese sweetgum (Liquidambar formosana).
Distribution and locality
Libo, Guizhou.
Taxonomic notes
Source: Huang Fusheng et al. (2000), Fauna Sinica, Insecta vol. 17, Isoptera, Science Press. (entry no. 240 in the original work) Entries are cited by their number in the original work.
Distribution map
No GBIF record with coordinates was found for this species.
Related papers
Cached papers for this genus (matched automatically, for reference); to search this species with its junior synonyms merged in, use the literature search.
- A new species of the genus Stylotermes (Isoptera: Rhinotermitidae)
Abstract
- 9 new species of the genus stylotermes from china isoptera
Abstract
- The trail-following communication in Stylotermes spp. (Blattodea, Isoptera, Stylotermitidae)
Abstract
Stylotermitidae appear peculiar among all termites, feeding in trunks of living trees in South Asia only. The difficulty to collect them limits our ability to study them, and they thus still belong to critically unknown groups in respect to their biology. We used a combined approach of microscopic observations, chemical analysis and behavioural tests, to understand the source and chemical nature of the trail-following pheromone of Stylotermes faveolus from India and S. halumicus from Taiwan. The sternal gland is the exclusive source of the trail-following pheromone in both Stylotermes species. It is located at the 5th abdominal sternite in workers, made of class I, II and III secretory cells. Gas chromatography coupled to mass spectrometry showed a minor peak corresponding to (Z)-dodec-3-en-1-ol (DOE). This compound elicits strong behavioural responses in workers, with a trail-following activity threshold around 10− 4 ng/cm in both species. Based on both chemical analysis and behavioural experiments, we estimated the amount of DOE around 0.1 ng/gland in S. faveolus and we conclude that DOE is the only active component of the trail-following pheromone of both Stylotermes species, like in all Kalotermitidae studied so far. Our results confirm the switch from complex aldehyde trail-following pheromones occurring in the basal groups to simpler linear alcohols in the ancestor of Kalotermitidae and Neoisoptera.
Papers on this species, synonyms included → OpenAlex Google Scholar CNKI
Abstracts come from open metadata; copyright remains with the original authors/publishers. For reference only — please check the original.
Other species in Stylotermes (44 species)
- Stylotermes acrofrons
- Stylotermes ahmadi
- Stylotermes alpinus
- Stylotermes angustignathus
- Stylotermes beesoni
- Stylotermes bengalensis
- Stylotermes chakratensis
- Stylotermes changtingensis
- Stylotermes chengduensis
- Stylotermes chongqingensis
- Stylotermes choui
- Stylotermes crinis
- Stylotermes curvatus
- Stylotermes dunensis
- Stylotermes faveolus
- Stylotermes fletcheri
- Stylotermes fontanellus
- Stylotermes guiyangensis
- Stylotermes halumicus
- Stylotermes hanyuanicus
- Stylotermes inclinatus
- Stylotermes jinyunicus
- Stylotermes labralis
- Stylotermes laticrus
- Stylotermes latilabrum
- Stylotermes latipedunculus
- Stylotermes lianpingensis
- Stylotermes longignathus
- Stylotermes mecocephalus
- Stylotermes minutus
- Stylotermes mirabilis
- Stylotermes parabengalensis
- Stylotermes planifrons
- Stylotermes robustus
- Stylotermes roonwali
- Stylotermes setosus
- Stylotermes sinensis
- Stylotermes sui
- Stylotermes triplanus
- Stylotermes tsaii
44 species in this genus. See all species on the genus page →
Cite this species
Citation strings are generated from the fields of this page; please keep the DOI and the version number when citing.
GB/T 7714
班奈特格林. Extant Isoptera (termites): a checklist of Latin and Chinese names: Stylotermes orthognathus 直颚杆白蚁[EB/OL]. Version 2026.10.30. https://termite-extant-isoptera.org/en/species/stylotermes-orthognathus/. DOI: 10.5281/zenodo.23646836.
BibTeX
@misc{isoptera_stylotermes_orthognathus_2026,
author = {班奈特格林},
title = {Stylotermes orthognathus: a checklist of extant Isoptera (termites)},
year = {2026},
version = {2026.10.30},
howpublished = {https://termite-extant-isoptera.org/en/species/stylotermes-orthognathus/},
note = {STYLOTERMITIDAE; version 2026.10.30; DOI: 10.5281/zenodo.23646836},
doi = {10.5281/zenodo.23646836}
}
RIS
TY - ELEC TI - Stylotermes orthognathus: a checklist of extant Isoptera (termites) AU - 班奈特格林 PY - 2026 UR - https://termite-extant-isoptera.org/en/species/stylotermes-orthognathus/ DO - 10.5281/zenodo.23646836 ER -