Acanthosia, Kruger, 2015

Durante, Antonio, Potenza, Luigi & Pellegrino, Gabriele, 2025, Revision of the subgenus Acanthosia Krüger, 2015 in the genus Archithosia Birket-Smith, 1965, with a description of four new species (Lepidoptera: Erebidae: Arctiinae: Lithosiini), Zootaxa 5659 (3), pp. 407-425 : 412

publication ID	https://doi.org/10.11646/zootaxa.5659.3.6
publication LSID	lsid:zoobank.org:pub:A9502C5D-D8E1-4FB6-A06A-8F676257C36F
DOI	https://doi.org/10.5281/zenodo.15850744
persistent identifier	https://treatment.plazi.org/id/03D187D5-3850-0F1E-FF66-FF74FA0BFBF2
treatment provided by	Plazi
scientific name	Acanthosia
status

Treatment

Key to the species of the subgenus Acanthosia (based on male genitalia)

1 Male genitalia with thick acute process (cp in Fig. 6A View FIGURE 6 ) in middle of dorsal margin of ala valvae............. flavifrontella View in CoL

- Ala valvae without process on dorsal margin, with acute dorso-basal process (dp in Fig. 6C View FIGURE 6 ).......................... 2

2 Processus basalis plicae roundish, flat (Fig. 15B in Birket-Smith 1965).................................... duplicata View in CoL

- Processus basalis plicae digitiform (pb in Fig. 6C View FIGURE 6 )........................................................... 3

3 Dorso-basal nearly straight pointed process on the valva (pp in Fig. 13B in Birket-Smith 1965)................... similis View in CoL

- Dorso-basal pointed process, bent mesad near its base, on the valva (dp in Fig. 6C View FIGURE 6 )........................... tryphosa View in CoL

Key to the species of the subgenus Acanthosia (based on female genitalia)

1 Ductus bursae long and slender; lamella postvaginalis concave, without median swellings............................ 2

- Ductus bursae fairly broad, forming cervix; lamella postvaginalis concave, with median swelling...................... 4

2 Ductus bursae as long as diameter of corpus bursae or longer................................................... 3

- Ductus bursae shorter than diameter of corpus bursae ( Fig. 8A View FIGURE 8 )...................................... brevis sp. nov.

3 Corpus bursae basically oval; ductus with sclerification posteriorly ( Fig. 7E View FIGURE 7 ).......................... oblonga sp. nov.

- Corpus bursae spherical; ductus with annular scobination anteriorly ( Fig. 7A View FIGURE 7 )........................... flavifrontella View in CoL

4 Ductus bursae squat, roughly cylindrical; corpus bursae pouch-like ( Fig. 9A View FIGURE 9 )............................ parva sp. nov.

- Ductus bursae elongated; corpus bursae spherical............................................................ 5

5 Ductus bursae slightly longer than corpus, funnel-shaped: posteriorly broad, narrowing at the corpus bursae junction (Fig. 14 in Birket-Smith 1965).............................................................................. similis View in CoL

- Ductus bursae shorter than corpus, cylindrical (Fig. 17 in Birket-Smith 1965)............................... duplicata View in CoL