Arcinnus Herbin, 2016

Laurent, Ryan A. St & Kawahara, Akito Y., 2019, Reclassification of the Sack-bearer Moths (Lepidoptera, Mimallonoidea, Mimallonidae), ZooKeys 815, pp. 1-114 : 32

Arcinnus Herbin, 2016 Figs 37, 150, 151

Type species.

Arcinnus hoedli Herbin, 2016.

Diagnosis.

Externally not particularly distinct from several other species of Cicinnus . Arcinnus are generally smaller than most Cicinnus and always lack hyaline patches on the hindwings (similarly patterned Cicinnus have hyaline patches on both fore and hindwings). Genitalia were the primary means by which this genus was originally described, and we also consider the male genitalia to have the most robust diagnostic characters defining this genus.

Apomorphies.

(1) Uncus vestigial and not synscleritous with tegumen (Fig. 37a); (2) Most substantial component of genitalia the broad, curved vincular arms which are apparently homologous to those seen in most Cicinninae, albeit much more heavily sclerotized, thicker, and apically blunt (Fig. 37b).

Remarks.

St Laurent et al. (2018a) recovered Arcinnus as a valid genus sister to Euphaneta + Aleyda . In the present study, Arcinnus is recovered nested within the poorly resolved Cicinnus sensu lato clade. We hesitate to synonymize this genus at this time pending broader molecular sampling of the Cicinnus s.l. clade, which is ongoing and consistently supports the validity of Arcinnus .

We were unable to figure female genitalia of Arcinnus , but direct the reader to figs 54 and 55 in Herbin (2016), where the female genitalia of the type species, A. hoedli are presented.