Spilophorus ( Prospilophorus ) holmi, Perissinotto & Garnier, 2025

Spilophorus ( Prospilophorus) holmi View in CoL sp. nov.

( Figs 11 View Fig , 12 View Fig , 15 View Fig )

Diagnosis. A revised in-depth analysis has revealed that the Tanzanian specimens are substantially different to those of the series retrieved from the False Bay region of KZN, and from the HT female from Barberton originally used in the description of S. grandis by Schein (1949). Superficially, this new species differs from S. ( P.) grandis by exhibiting: 1) golden-cream, rather than white-cream, tomentum across the body ( Figs 12 View Fig and 13 View Fig ); 2) an atrophic tooth and relatively scattered setation on the ventral side of the protibia ( Fig. 12 B View Fig ), while these are substantially more developed in S. ( P.) grandis . The central longitudinal ridge on the frons of holmi is also smoother and less elevated than in grandis , and the basal attachment of the labium is narrower and more laterally constrained in the former than the latter species. Its aedeagal parameres are gradually tapering in the apical half, rather than abruptly as in S. ( P.) grandis , and the central gap between right and left lobes is virtually obsolete, while it is rather wide in the latter species as a result of the markedly arcuate inner margins of its lobes ( Fig. 11 F, G View Fig ). The two species also live in drastically different habitats, with S. ( P.) grandis mainly restricted to the coastal sand forests of KwaZulu-Natal and S. ( P.) holmi , on the other hand, occurring in tropical rainforests on the lower slopes of the Uluguru Mountains.

Type series. HT ♂: [ Tanzania]: Tanzanie , Mts Uluguru, Kiroka, for. héliophile, nids Crematogaster , alt. 725 m , 27-

31/V/71, Coll. Mus. Tervuren, Mission Mts Uluguru, L. Berger, N. Leleup, J Debecker V/VIII/71, R. Det. 7937 B. (RMCA-ENT-000049326). PTs, Tanzania: 1♀, idem (RM- CA-ENT-000049343); 1♀, idem ( RMCA ENT 000049349 → RPGS); 1♂, idem (RMCA-ENT-000047933) ;

1 ind., idem (RMCA-ENT-000049304); 1 ind., idem (RM- CA-ENT-000049305);1ind.,idem(RMCA-ENT-000049306); 1 ind., idem (RMCA-ENT-000049307); 1 ind., idem (RM- CA-ENT-000049308);1ind.,idem(RMCA-ENT-000049309); 1 ind., idem (RMCA-ENT-000049313); 1 ind., idem (RM- CA-ENT-000049314);1ind.,idem(RMCA-ENT-000049315); 1 ind., idem (RMCA-ENT-000049316); 1 ind., idem (RM- CA-ENT-000049317);1ind.,idem(RMCA-ENT-000049318); 1 ind., idem (RMCA-ENT-000049319); 1 ind., idem (RM- CA-ENT-000049323);1ind.,idem(RMCA-ENT-000049324); 1 ind., idem (RMCA-ENT-000049325); 1 ind., idem (RM- CA-ENT-000049326);1ind.,idem(RMCA-ENT-000049327); 1 ind., idem (RMCA-ENT-000049328); 1 ind., idem (RM- CA-ENT-000049329);1ind.,idem(RMCA-ENT-000049333); 1 ind., idem (RMCA-ENT-000049334); 1 ind., idem (RM- CA-ENT-000049335);1ind.,idem(RMCA-ENT-000049336); 1 ind., idem (RMCA-ENT-000049338); 1 ind., idem (RM- CA-ENT-000049339);1ind.,idem(RMCA-ENT-000049344); 1 ind., idem (RMCA-ENT-000049345); 1 ind., idem (RM- CA-ENT-000049346);1ind.,idem(RMCA-ENT-000049347); 1 ind., idem (RMCA-ENT-000049348); 1 ind., idem (RM- CA-ENT-000049353);1ind.,idem(RMCA-ENT-000049354); 1 ind., idem (RMCA-ENT-000049355); 1♂, idem (RM- CA-ENT-000047933);1ind.,idem(RMCA-ENT-000047934); 1 ind., idem (RMCA-ENT-000047935); 1 ind., idem (RM- CA-ENT-000047936);1ind.,idem(RMCA-ENT-000047937); 1 ind., idem (RMCA-ENT-000047938); 1 ind., idem (RM- CA-ENT-000047939); 1 ind., idem ( SRSF) ; 1♂ ( 19 mm), ibidem, Ex Collection Dr Vincent Allard , received from Christophe Allard 21.II.2015 ( GBEG) ; 1♀ ( 19.5 mm), idem ( GBEG) ; 1♂ ( 20 mm), idem, R. Det. 7937 B. ( GBEG) ; 1♂, ibidem, Spilophorus grandis Schein, G. Ruter det. 1975 (RM- CA-ENT-000049303 → RPGS) .