Tisamenus asper Bolívar, 1890

Tisamenus asper Bolívar, 1890 View in CoL

( Fig. 5)

Tisamenus asper Bolívar, 1890: 308 View in CoL .

LT, ♀ (by present designation): Monte de Angat , Marzo!; Tisamenusasper Bolivar; MNCN, Cat. Tipos N ° 1598; Tisamenus asper View in CoL ♀ Bolivar 1890, LECTOTOYUS, O. Zompro VII.2001 [ MNMS] ;

PLT, ♂: Sintipo?; MNCN Cat. Tipos N ° 1599 [ MNMS] .

- Kirby, 1904: 399.

- Redtenbacher, 1906: 45.

- Bruner, 1915: 230.

- Paris, 1994: 169.

- Zompro, 2004: 206.

- Otte & Brock, 2005: 334.

- Brock & Büscher, 2022: 521.

- Hennemann, 2023b: 128.

Hoploclonia aspera, Rehn & Rehn, 1939: 473 View in CoL . ( Serratoria Group)

Material examined

1 ♂: Philippinen, Zentral Luzon Id., Provinz Bulacan, Norzagaray Munip., local collector 16.VI.2012 [coll. FH, No. 1544-1] .

1 ♂: Philippinen, Zentral Luzon Id., Provinz Quezon, General Nakar Munip., Minahan, local collector VII.2004 [coll. FH, No. 1544-2] .

Differentiation. – This species is morphologically most similar to T. deplanatus (Westwood, 1859) and T. cervicornis Bolívar, 1890 but differs from both these species by the slightly slenderer shape, having six distinct tuberculate mesopleurals ( Fig. 5A, C, E; only a definite anterior and posterior mesopleural present in deplanatus and cervicornis ), having the anterior pronotals weakly developed and obtusely tubercular in shape ( Fig. 5L; distinctly spinose in deplanatus and cervicornis ), the pair of posteriors on abdominal terga II-IV only represented by small, obtuse tubercles (distinct spines in deplanatus and cervicornis ) and the carinae of the mesonotal triangular area just weakly developed, shallow and becoming increasingly scarce towards the posterior. In having the mesonotal triangular area fairly large, noticeably longer than wide and surpassing the middle of the mesonotum, asper resembles deplanatus , but as stated above the outer carinae of thisarea are much less pronounced and not forming distinct ridges with the anterior angles triangularly protruded as in deplanatus .

Remarks. – Bolívar (1890: 308) described this species from a ♀ and ♂ in the collection of MNMS ( Fig. 5 A-D), of which the ♀ ( Fig. 5 AB) is here selected as the lectotype to ensure stability of the name. Not having examined Bolivar’s type specimens Rehn & Rehn (1939: 473) attributed this species to the Serratoria group, but actually asper is morphologically much closer to species that these authors placed in their Deplanatus group, i. e. T. deplanatus or T. cervicornis . Body lengths ♀ 50.0 mm, ♂ 38.8-41.0 mm.

Distribution. – Central Luzon. Province Bulacan (Angat [MNMS – type locality]; Norzagaray [FH]); Province Quezon (General nakar Municipality, Minahan [FH].