Tisamenus kalahani Lit & Eusebio, 2005

Hennemann, Frank H., 2025, A taxonomic review of Philippine Obrimini stick insects: The genus Tisamenus Stål, 1875 (Insecta: Phasmatodea: Heteropterygidae: Obriminae), Faunitaxys 13 (24), pp. 1-85 : 47-50

publication ID	https://doi.org/10.57800/faunitaxys-13(24)
publication LSID	lsid:zoobank.org:pub:DE59DF77-7695-445A-BCDC-FB2485440084
DOI	https://doi.org/10.5281/zenodo.17034267
persistent identifier	https://treatment.plazi.org/id/3424C176-B153-FFDF-FC64-1F3BC46AFD5E
treatment provided by	Felipe
scientific name	Tisamenus kalahani Lit & Eusebio, 2005
status

Treatment

Tisamenus kalahani Lit & Eusebio, 2005 View in CoL

Tisamenus kalahani Lit & Eusebio, 2005: 209 View in CoL , Fig. 1 (♂).

HT, ♂: Luzon Is., Nueva Vizcaya Prov., Imugan , Sta. Fe, 01.v.2005, E.A. Cosico [ UPLB, No. PHA-00358] .

- Brock & Büscher, 2022: 521.

- Hennemann, 2023b: 128.

A: Dorsal view. B. Dorsolateral view. C. Lateral view. D. Ventral view. E. Terminalia in lateral view. F. Terminalia in dorsal view. G. Terminalia in ventral view. H. Closeup of head, pro- and mesonotum. I. Closeup of pro-, meso- and metasternum.

A. Dorsal view. B. Dorsolateral view. C. Lateral view. D. Ventral view. E. Anteroventral view of right hind leg. F. Terminalia in lateral view. G. Terminalia in dorsal view. H. Terminalia in ventral view. I. Closeup of head, pro- and mesonotum. J. Closeup of head, pro- and mesonotum of PT [FH 1518-1].

Differentiation. – Males of this small and very slender species (the only sex known) are morphologically closest to T. polillo ( Rehn & Rehn,1939) and T.summaleonilae Lit & Eusebio, 2005 .From the first they can be separated by the smaller size and slenderer shape and limbs, simple but very prominent anterior pronotals (tri-spinose in polillo ), noticeably lower carinae of the triangular mesonotal area, much smaller supra coxal spines, which are only represented as conical tubercles, and lack of paired posterior spines on abdominal terga II-IV. From summaleonilae they differ by the much slenderer shape and limbs and having the mesothorax almost uniform in diameter (notably gradually widening towards the posterior in summaleonilae ), less widened metapleurae, large and closely spaced anterior pronotals but small antero-laterals, as well as the smaller triangular area of the mesonotum, which just slightly projects of the mid of the mesonotum.

Remarks. – Female unknown. Body length ♂ 31.7 mm.

Distribution. – N-Luzon. Province Nueva Vizcaya, Imugan, Santa Fe [UPLB – type locality]).