Tisamenus summaleonilae Lit & Eusebio, 2005

Tisamenus summaleonilae Lit & Eusebio, 2005 View in CoL

Tisamenus summaleonilae Lit & Eusebio, 2005: 212 View in CoL , Fig. 2 ( ♂).

HT, ♂: Luzon Is., Isabela Prov., Sitio Apaya, Barangay Dibuluan, San Mariano , 200 m asl, vi.2005, A.C. Diesmos [ UPLB, No. PHA-00356] ;

PT, ♂: Luzon Is., Isabela Prov., Sitio Apaya, Barangay Dibuluan, San Mariano , 200 m asl, vi.2005, A.C. Diesmos [ UPLB, No. 00357] .

- Brock & Büscher, 2022: 521.

- Hennemann, 2023b: 128.

Differentiation. – Males of this small species (the only sex known) are morphologically closest to T.polillo ( Rehn & Rehn, 1939) and T. kalahani Lit & Eusebio, 2005 . From the first they can be separated by the gradually widening meso- and metathorax, very small and tubercular anterior pronotals (large and tri-spinose in polillo ) but large antero-laterals,lower carinae of the triangular mesonotal area,which is notably larger and covers almost two-thirds of the length of the mesonotum, much smaller supra coxal spines (wanting on mesopleurae), and lack of paired posterior spines on abdominal terga II-IV. From kalahani they can be differentiated by the stockier shape and limbs and gradually widening meso- and metathorax (mesothorax almost uniform in diameter in kalahani ), having the anterior pronotals only represented as tubercles but the antero-laterals strongly spinose, as well as the larger triangular area of the mesonotum.

Remarks. – Female unknown. Body length ♂ 33.7 mm.

Distribution. – NE-Luzon. Province Isabela (Barangay Dibuluan, San Mariano 200 m [UPLB – type locality]).