Acanthosia tryphosa pringlei, Volynkin, 2025

Acanthosia tryphosa pringlei ssp. n.

https://zoobank.org/ urn:lsid:zoobank.org:act:E547BD98-FDE3-4955-ACFA-1F04AA06E863

( Figs 19, 20 View Figures 16–30 , 101 View Figures 98–101 , 153 View Figures 150–155 )

Type material. Holotype ( Figs 19 View Figures 16–30 , 101 View Figures 98–101 ): male, “ Tanzania: | Amani | Malaria Institute | G. Pringle coll. | BM 1966-281 ” / “Amani | P 268 | 4/61” / “ G. Pringle Coll. | B.M. 1966-281.” / QR- code label with unique ID: NHMUK 010914603 About NHMUK ” / “Slide | NHMUK010313056 About NHMUK ” [prepared by M. Krüger] ( NHMUK).

Paratype : female, Tanzania: Amani , Malaria Institute, G. Pringle coll., BM 1966-281 / Mal. Inst. Amani P. 268 8/63 / G. Pringle Coll. B.M. 1966-281, unique ID: NHMUK 010914604 About NHMUK , gen. slide No.: NHMUK010313057 About NHMUK [prepared by M. Krüger] ( NHMUK).

Remark. As the vesica structure of this population from the East Usambara Mountains remains unstudied, it is herein described as a subspecies of A. tryphosa , to which this taxon is very similar morphologically, and the clarification of its status will be possible in the future after the examination of additional specimens.

Diagnosis. The forewing length is 12.5 mm in the male holotype and 15.0 mm in the female paratype. Acanthosia tryphosa pringlei ssp. n. differs from the two other subspecies of A. tryphosa in the more postmedially convex costal margin of the forewing and the more ochreous forewing ground colour. The male genital capsule of the new subspecies differs from A. t. tryphosa and A. t. duplicata in the proximally broader distal lobe of the distal saccular process, the basally narrower proximal lobe of the distal saccular process, and the somewhat longer juxta. Additionally, the cornutus in the vesica of A. t. pringlei ssp. n. is somewhat smaller than in the two other subspecies. The female genitalia of the new subspecies are very similar to A. t. tryphosa and A. t. duplicata but the ostium bursae is somewhat narrower, the sclerotised area of the posterior section of the corpus bursae is displaced ventrally, and the signum bursae is slightly smaller than the corresponding structures of two other subspecies of A. tryphosa .

Distribution. The subspecies is currently known only from the East Usambara Mountains in north-eastern Tanzania.

Etymology. The new subspecies is named after the collector of its type specimens, Dr Gerry Pringle, former director of the Malaria Institute in Amani, Tanzania. The name is a noun in the genitive case.