Ridens angulinea Grishin, 2023

Zhang, Jing, Cong, Qian & Grishin, Nick V., 2023, Supplementary Materials and Appendix, Insecta Mundi 2023 (26), pp. 1-115 : 17

Ridens angulinea Grishin , new species

https://zoobank.org/ F16FA82A-8646-4B46-A2F2-7C7A8DDECC6B

( Fig. 1 part, 33–34, 246–247)

Definition and diagnosis. Phylogenetic trees reveal that specimens from Peru and Bolivia identified as Ridens fulminans (Herrich-Schäffer, 1869) (type locality not specified) are not monophyletic with it and are instead sister to several species of Ridens Evans, 1952 ( Fig. 1), and therefore represent a new species. COI barcodes of this new species and a syntype of R. fulminans differ by 6.8% (45 bp). The new species keys to Ridens fulminans (C.12.7) in Evans (1952) and differs from R. fulminans and Ridens fulima Evans, 1952 (type locality in Brazil: Espírito Santo) in typically having narrower forewing hyaline spots (although some specimens have broader spots as well) and less prominent, mostly vestigial, pale discal band on the ventral hindwing ( Fig. 33–34). Due to the cryptic nature of this species, most reliable identification is achieved by DNA and a combination of the following base pairs is diagnostic in the nuclear genome: aly116.28.11:A377G, aly116.28.11:A405G, aly2284.34.16:A61C, aly2284.34.16:A90G, aly 2311.2.8:G123A, and COI barcode: T34C, T70C, A100C, T145C, T263C.

Barcode sequence of the holotype. Sample NVG-14104E04, GenBank OR837636, 658 base pairs: AACTTTATATTTTATTTTTGGAATTTGAGCTGGCTTAATTGGAACTTCCTTAAGATTACTTATTCGTACCGAATTAGGAATTCCCGGTTCTTTAATT GGCGATGACCAAATTTATAATACTATTGTAACAGCACATGCCTTTATCATAATCTTTTTTATAGTAATACCAATTATAATTGGTGGATTTGGAAATT GATTAGTACCATTAATATTAGGAGCCCCTGATATAGCATTCCCCCGAATAAATAATATAAGATTTTGACTATTACCCCCATCTCTTACTCTTTTAAT TTCTAGAAGAATTGTAGAAAATGGTGCTGGAACAGGTTGAACAGTTTATCCCCCTCTTTCAACTAATATTGCCCATCAAGGGGCATCTGTCGACTTA GCCATTTTTTCTCTTCATTTAGCTGGAATTTCCTCAATTTTAGGAGCAATTAATTTTATTACAACAATTATTAATATGCGAATTAATAATTTATCAT TTGATCAAATACCATTATTTATTTGAGCCGTAGGAATTACAGCATTATTATTATTACTTTCTTTACCTGTATTGGCAGGAGCTATTACCATATTACT TACCGATCGAAACTTAAATACTTCATTTTTTGATCCTGCAGGAGGTGGAGATCCAATTTTATATCAACACTTATTT

Type material. Holotype: ♂ currently deposited in the National Museum of Natural History, Smithsonian Institution , Washington, DC, USA ( USNM), illustrated in Fig. 33–34, bears the following three rectangular labels, two white: [ PERU: Cuzco 1,194m | Bridge@ 1194 m | Cosnipata Road 3167 | 29.I.2013 Kinyon], [DNA sample ID: | NVG-14104E04 | c/o Nick V. Grishin], and one red [HOLOTYPE ♂ | Ridens angulinea | Grishin] . Paratypes: 5♂♂: 1♂ NVG-17103B12 USNM _00913749 Peru: Cuzco, Cosnipata Valley, Quebrada Santa Isabel , 24-Oct-2016, S. Kinyon leg. [ USNM] ; 1♂ NVG-18089A11 Bolivia: Yungas Region, Caranavi Province , 50 km N of Coroico, 700-1200 m, Nov-1988, Carlos Tello leg. [EBrockmann] ; 3♂♂ Bolivia: Rio Songo : NVG-19041B10 AMNH _ IZC 00337748 750 m, coll. Fassl, genitalia slide G770 [ AMNH] ; and R. C. Williams, Jr. collection [ ANSP]: NVG-22042E10 and NVG-22042E11 genitalia slide No. 316 .

Type locality. Peru: Cuzco, Cosñipata Road, bridge at 1194 m.

Etymology. The name reflects narrower white bands and spots in many specimens of this species. It is derived from the Latin phrase “narrow lines”: angu [stis] line [is]+a. The name is a noun in apposition.

Distribution. Southern Peru and Bolivia.