Tetramorium tylinum

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Tetramorium tylinum
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Hymenoptera
Family: Formicidae
Subfamily: Myrmicinae
Tribe: Crematogastrini
Genus: Tetramorium
Species: T. tylinum
Binomial name
Tetramorium tylinum
Bolton, 1977

Tetramorium tylinum casent0901099 p 1 high.jpg

Tetramorium tylinum casent0901099 d 1 high.jpg

Specimen Labels

Nothing is known about the biology of Tetramorium tylinum.

Identification

Bolton (1977) - The closest known relative of tylinum is Tetramorium flagellatum, which is also known from the same locality in Borneo. T. flagellatum is quickly separable from tylinum by its exceptionally long pilosity and the presence of long, erect hairs on the outer surface of the hind tibiae.

Distribution

Distribution based on Regional Taxon Lists

Indo-Australian Region: Borneo (type locality), Indonesia, Malaysia.


Distribution based on AntMaps

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Distribution based on AntWeb specimens

Check data from AntWeb

Biology

Castes

Nomenclature

The following information is derived from Barry Bolton's New General Catalogue, a catalogue of the world's ants.

  • tylinum. Tetramorium tylinum Bolton, 1977: 123, fig. 53 (w.) BORNEO.

Unless otherwise noted the text for the remainder of this section is reported from the publication that includes the original description.

Description

Worker

Holotype. TL 3.7, HL 0.84, HW 0.80, CI 95, SL 0.62, SI 77, PW 0.60, AL 0.98.

Mandibles striate; anterior clypeal margin entire. Frontal carinae long, extending back almost to the occipital corners, but only weakly developed. Over most of their length the frontal carinae are no more strongly developed than the other cephalic sculpture. Antennal scrobes poorly developed, very shallow but still quite easily visible. Eyes situated well in front of the midlength of the sides of the head in full-face view, their maximum diameter c. 0'18. Occipital margin of head strongly concave medially in full-face view. Alitrunk in profile evenly convex, the propodeal spines straight, strongly tapered apically and very sharp. Metapleural lobes acutely triangular, somewhat upcurved. Petiole in profile shaped as in Fig. 53, without a defined posterodorsal angle so that the dorsum rounds into the posterior face. In dorsal view the petiole node is slightly broader than long. Dorsum of head with a fine, dense and somewhat irregular rugoreticulum, the area of the antennal scrobes more finely and more densely sculptured, having a rough appearance. Dorsal surfaces of alitrunk and petiole finely reticulate-rugose, the latter less strongly so than the former. Dorsum of postpetiole un sculptured centrally and mostly so elsewhere, but with some traces of rugulae around the sides of the dorsum. Gaster unsculptured. All dorsal surfaces of head and body with abundant fine, erect or suberect hairs of varying length. Longest hairs on scapes not equal to the width of the scape, without a spaced row of elongate hairs. Dorsal (outer) surfaces of hind tibiae with abundant short hairs but without long prominent hairs. Colour dark reddish brown, the appendages yellowish.

Paratypes. As holotype: TL 3.6-3.7, HL 0.84-0.86, HW 0.80-0.82, CI 95-97, SL 0.60-0.64, SI 74-80, PW 0.58-0.62, AL 0.96-1.00 (5 measured). Maximum diameter of eye c. 0.18 in all paratypes.

Type Material

Holotype worker, Borneo: N., Kiduk Arok, Trus Madi Massif, 1500 m, ix.1956, no. 21, Cambridge N. Borneo Exped. (P. W. Bryant) (Museum of Comparative Zoology). Paratypes. 5 workers with same data as holotype but no. 34A (MCZC; The Natural History Museum).

References