Amydetes vivianii, Silveira, Luiz Felipe Lima Da & Mermudes, José Ricardo M., 2014

Silveira, Luiz Felipe Lima Da & Mermudes, José Ricardo M., 2014, Systematic review of the firefly genus Amydetes Illiger, 1807 (Coleoptera: Lampyridae), with description of 13 new species, Zootaxa 3765 (3), pp. 201-248 : 239

publication ID	https://doi.org/ 10.11646/zootaxa.3765.3.1
publication LSID	lsid:zoobank.org:pub:770E2D24-AC00-4F71-BB34-49A785C385C9
DOI	https://doi.org/10.5281/zenodo.6130089
persistent identifier	https://treatment.plazi.org/id/039C87A8-4E01-FFC7-9788-0331FE034259
treatment provided by	Plazi
scientific name	Amydetes vivianii
status	sp. nov.

Treatment

Amydetes vivianii View in CoL sp. nov.

( Figs. 15 View FIGURES 10 – 18 , 37 View FIGURES 23 – 40 , 56, 75, 93, 121, 139, 204–207)

Amydetes fanestratus [sic] Viviani, 2011 (nomen nudum)

Diagnosis. Fronto-clypeus with anterior margin 2/5 wider than distance between antennal sockets. Labrum strongly bilobate. Abdominal sterna VI and VII with lanterns almost as long as sterna length and with slightly wider than 3/4 sterna width. Pygidium with median lobe beveled, slightly longer than lateral lobe, as wide as 1/2 posterior margin width; indentation between lateral lobe and median lobe well developed.

Colouration. ( Fig. 15 View FIGURES 10 – 18 ) Integument brown. Prothorax generally with two maculae yellowish-brown on the sides, expansions pale yellow. Elytron with suture light-brown, at least at the anterior 1/2.

Head. ( Figs. 37 View FIGURES 23 – 40 , 56) Fronto-clypeus depressed up to antennal sockets, anterior margin 2/5 wider than distance between antennal sockets and slightly wider than distance between antennifers. Antenna with 31–35 antennomeres (n=3); antennomere III slightly longer than pedicel, flabellum ca. 3x longer than antennomere III. Labrum strongly bilobate. Maxillary palpomere IV 3x longer than III, slightly less than 1/3 longer than labial palpomere III.

Thorax. (Figs. 75, 93) Pronotum with lateral margins slightly divergent posteriad, posterior angle weakly developed, acute and fairly straight down; setigerous punctures irregularly separeted 0.5–1.5x the diameter of a puncture. Hypomeron 2x longer than high. Scutellum subparallel-sided. Elytron slightly dehiscent, slightly wider subapically; marginal costa with anterior margin not projected. Mesosternum with posterior margin rounded.

Abdomen. ( Figs. 121 View FIGURES 116 – 124 , 139 View FIGURES 134 – 142 , 204 View FIGURES 195 – 206 –207) Abdominal sternum V with posterior margin straight. Abdominal sterna VI and VII with lanterns as long as sterna length and slightly wider than 3/4 sterna width. Abdominal sternum VIII with posterior margin straight or irregular. Pygidium with median lobe beveled, slightly longer than lateral lobe, as wide as 1/2 posterior margin width; indentation between lateral lobe and median lobe well developed; lateral lobe well developed, acuminate. Terminalia: Syntergite with anterior margin truncate, posterior asymmetric, bristles sparse and with variable size at lateral margins; suture between abdominal tergites IX and X indistinct. Abdominal sternum IX 2x longer than syntergite, slightly more than 2x longer than wide; wider at posterior 1/3; with lateral margins divergent posteriad, bristled at posterior 1/3; posterior margin rounded. Aedeagus: Phallobase asymmetric. Parameres basally constricted, close-set subapically, rounded apically. Phallum 1/3 longer than paramere, apex rounded, subparallel-sided. Ventral plate sclerotized and straight.

Type-material. Holotype: BRAZIL. São Paulo: Pirassununga. S. Paulo. EECP – Noite, Schubart., male (MZSP). Eight paratypes from BRAZIL: São Paulo: Itu, 1 male, 10/95, ESH Bechara (BIOLUM); Nova Europa (Faz. Itaquerê), 2 males, I/ 1964, K. Lenko col. (MZSP); São Carlos, (Fazenda Embaré), 6 males, I/962, L. Stowbunenko col. (MZSP).

Etymology. This species is named after the great biochemist and firefly collector Vadim Viviani, who has strongly promoted the study of the Lampyridae and other bioluminescent beetles in Brazil.

Remarks. Amydetes vivianii sp. nov. resembles Amydetes caetite sp. nov. ( Fig. 10 View FIGURES 10 – 18 ), A. lucernula sp. nov. ( Fig. 11 View FIGURES 10 – 18 ) and A. marajoara sp. nov. ( Fig. 16 View FIGURES 10 – 18 ). Differs from the two former by the characteristics pointed out in the Remarks sections for these species. It differs from A.marajoara sp. nov. by fronto-clypeus with anterior margin 2/ 5 wider than distance between antennal sockets (2x wider than distance between antennal sockets A.marajoara sp. nov.), labrum bilobate (straight in A.marajoara sp. nov.), and pygidium with median lobe beveled (rounded in A.marajoara sp. nov.)