Odontotermes longignathus Holmgren, 1914
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publication ID |
https://doi.org/10.6620/ZS.2024.63-52 |
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persistent identifier |
https://treatment.plazi.org/id/7E1C4537-FFEF-FFD7-FF20-F901FB214F0C |
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treatment provided by |
Felipe |
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scientific name |
Odontotermes longignathus Holmgren, 1914 |
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Odontotermes longignathus Holmgren, 1914 View in CoL
S y n o n y m y: O d o n t o t e r m e s (O d o n t o t e r m e s) longignathus Holmgren, 1914 .
M a t e r i a l e x a m i n e d: T h e s p e c i m e n s o f O. longignathus were collected from the dry evergreen forest at Kaeng Krachan National Park in Phetchaburi, and the deciduous dipterocarp forest at Doi Inthanon National Park in Chiang Mai province, and at Phu Toei National Park in Suphan Buri province. Thirty soldier termites were used for describing.
Soldier case: thorax and legs have reddish brown or brownish yellow, abdomen sternites light brown, vertex reddish brown ( Fig. 1L View Fig ). Head; subrectangular, scantily hairy, length of head to side base of mandibles with 2.70 mm 2.96 mm, width of head at side base of mandibles with 1.45 mm to 1.61 mm. Antennae; 17 segments, the second 1.5-fold as long as the third, the fourth slightly longer than the third and fifth. Mandibles; dark brown, long, thick, tips curved, left mandible broad-based with a slight tooth posteriorly directed in the middle, right mandible without any denticle; in some specimens, an indistinct denticle present, length of left mandible with 1.40 mm to 1.56 mm. Labrum; slightly longer than broad, the tip narrowly rounded, long hairs arranged in a row along the lateral sides. Pronotum; light yellow, the middle of the anterior region slightly indented, the posterior margin weakly concaved in the middle, curved upward, the lateral margins broadly rounded, length of pronotum with 0.83 mm to 0.88 mm, width of pronotum with 1.61 mm to 1.82 mm. Postmentum; elongated and slightly curved; the lateral margins shallowly concave, two hairs near the anterior region.
Distribution: Malaysia, Thailand.
Molecular identification of FGTs
The BLAST results for the COI and COII sequences of all samples showed %identity over than 97% and the e-value of 0. Most samples generally agreed with the morphological data except for samples identified as O. feae and O. takensis ( Tables 1 and 2). Samples that were identified as O. feae (SH202317, SH202323 and IV202339) were best matched with O. javanicus in both COI and COII sequences with 97–98% identity. Samples that were identified as O. takensis (SH202305, SH202318, SH202329, IV202331, IV202342 and IV202343) were best matched with O. hinanensis and O. takensis in COI with equally comparable % identity (97–99.73%) while the COII sequences of these samples were best matched with O. hinanensis and O. javanicus with 98–99.56% identity.
We exclude three sequences (SH 202314, SH202330 and IV202339) in the phylogenetic tree of the COI ( Fig. 2 View Fig ) because these sequences were shorter than the other samples and caused alignment error. The phylogenetic trees for both COI ( Fig. 2 View Fig ) and COII ( Fig. 3 View Fig ) were generally congruent. Samples of the same species clearly clustered together. However, in the O. takensis group, our samples clustered with O. takensis and O. hinanensis in terms of COI and with O. hinanensis and O. formosanus in terms of COII. This is consistent with the BLAST results; the sequences of O. takensis (COII) and O. feae (both COI and COII) were not available in the database.
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