Amydetes vagalume, 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 : 241-242

Amydetes vagalume sp. nov.

( Figs. 17 , 39 , 58, 77, 95, 123, 141, 212–215)

Diagnosis: Antennomere III as long as pedicel. Maxillary palpomere IV 2x longer than III. Pronotum with posterior angle deflexed. Abdominal sternum VIII with posterior margin straight. Pygidium with median lobe beveled, slightly longer than lateral lobe, and as wide as 1/2 posterior margin width; indentation between lateral lobe and median lobe weakly developed; lateral lobe weakly developed, acuminate.

Colouration. ( Fig. 17 ) Integument brown or yellowish-brown. Prothorax generally with two maculae yellowish-brown on the sides, expansions pale yellow. Elytron yellowish-brown with distal 1/2 or apex black, often with suture and outer margin pale yellow. Abdomen with posterior 1/2 generally dark-brown, but a few specimens have abdômen dark-brown in a smaller proportion.

Head. ( Figs. 39 , 58) Fronto-clypeus depressed up to antennal sockets, anterior margin 2x wider than distance between antennal sockets and slightly wider than distance between antennifers, generally with a discreet median bevel. Antenna with 29–32 antennomeres (n=3); antennomere III as long as pedicel, flabellum almost 3x longer than antennomere III. Labrum rounded or emarginate. Maxillary palpomere IV 2x longer than III, as long as labial palpomere III.

Thorax: (Figs. 77, 95) Pronotum with lateral margins divergent posteriad, posterior angle well developed, acutes and deflexed. Setigerous punctures irregularly separeted 0.5–1.5x the diameter of a puncture. Hypomeron 1/ 3 longer than high. Elytron slightly dehiscent; wider subapically; marginal costa with anterior margin projected. Scutellum subparallel-sided. Mesosternum with posterior margin rounded.

Abdomen. ( Figs. 123 , 141 , 212–215 ) Abdominal sternum V with posterior margin straight. Abdominal sterna VI and VII with lanterns as long as 3/4 sternum length and as wide as 1/2 sternum width. Abdominal sternum VIII with posterior margin straight or irregular. Pygidium with median lobe beveled, slightly longer than lateral lobe, and as wide as 1/2 posterior margin width; indentation between lateral lobe and median lobe weakly developed; lateral lobe weakly developed, acuminate. Terminalia: Syntergite with anterior and posterior margin symmetric and rounded, lateral margins subparallel, with a pair of wisps of bristles laterally; suture between abdominal tergites IX and X conspicuous. Abdominal sternum IX slightly more than 1/4 longer than syntergite, 2x longer than wide; wider at posterior 1/3; with lateral margins abruptly divergent posteriad up to 2/3 length, bristled at posterior 1/3; posterior margin truncate. Aedeagus: Phallobase asymmetric. Parameres basally constricted, close-set subapically. Paramere and phallum roundeds apically. Phallum 1/3 longer than paramere, with apex rounded, subparallel-sided. Ventral plate weakly sclerotized and straight.

Type-material. Holotype: BRAZIL, Pará: Itaituba, Rio Tapajóz, III/1963, Dirings, male (MZSP). Paratypes from BRAZIL, Roraima: Ji-Paraná, 14 males, 20–23/XI/1984 (MPEG); idem, 2 males, 17–20/XI/1984 (Linha 12.B) (MPEG).

Etymology. “ Vagalume ” is a popular name for fireflies in Brazil. Name in apposition.

Remarks. Amydetes vagalume sp. nov. resembles A. apicalis (Fig. 2) and A. luzecu sp. nov. ( Fig. 18 ). It differs from A. apicalis by the characteristics pointed out in the Remarks section of this species. It differs from A. luzecu sp. nov. by maxillary palpomere IV 2x longer than III (4x longer in A. luzecu sp. nov.); Pronotum with anterior margin rounded, somewhat projected (notably projected in A. luzecu sp. nov.); pygidium with median lobe beveled (acuminate in A. luzecu sp. nov.).

Figures

FIGURES 10 – 18. Habitus. 10 Amydetes caetite sp. nov.. 11 Amydetes lucernula sp. nov.. 12 Amydetes plaumanni sp. nov.. 13 Amydetes bellorum sp. nov.. 14 Amydetes itatiaia sp. nov.. 15 Amydetes vivianii sp. nov.. 16 Amydetes marajoara sp. nov.. 17 Amydetes vagalume sp. nov.. 18 Amydetes luzecu sp. nov. Scale. 2 mm.

FIGURES 23 – 40. Frons shape drawings 23 Amydetes agnita. 24 A. apicalis. 25 A. discissa. 26 A. fastigiata. 27 A. fucata. 28 A. lucioloides. 29 Amydetes solaris sp. nov.. 30 Amydetes goiana sp. nov.. 31 Amydetes manezinha sp. nov.. 32 Amydetes caetite sp. nov.. 33 Amydetes lucernula sp. nov.. 34 Amydetes plaumanni sp. nov.. 35 Amydetes bellorum sp. nov.. 36 Amydetes itatiaia sp. nov.. 37 Amydetes vivianii sp. nov.. 38 Amydetes marajoara sp. nov.. 39 Amydetes vagalume sp. nov.. 40 Amydetes luzecu sp. nov. Scale. 250 µm. DBA = distance between antennifers antennifers. DBAS = distance between antennal sockets.

FIGURES 116 – 124. Abdomen, ventral. Note the lanterns and posterior margin of abdominal sternite V and VIII. 116 Amydetes caetite sp. nov .. 117 Amydetes lucernula sp. nov .. 118 Amydetes plaumanni sp. nov.. 119 Amydetes bellorum sp. nov.. 120 Amydetes itatiaia sp. nov.. 121 Amydetes vivianii sp. nov .. 122 Amydetes marajoara sp. nov.. 123 Amydetes vagalume sp. nov. 124 Amydetes luzecu sp. nov. Scale. 1 mm.

FIGURES 134 – 142. Pygidium, dorsal. 134 Amydetes caetite sp. nov.. 135 Amydetes lucernula sp. nov.. 136 Amydetes plaumanni sp. nov. 6. 137 Amydetes bellorum sp. nov.. 138 Amydetes itatiaia sp. nov.. 139 Amydetes vivianii sp. nov.. 140 Amydetes marajoara sp. nov.. 141 Amydetes vagalume sp. nov.. 11. 142 Amydetes luzecu sp. nov. Scale. 500 µm.

FIGURES 208 – 219. Teminalia. FIGURES 208, 212 and 216 syntergite (dorsal) and abdominal sternite (ventral). FIGURES 209 – 211, 213 – 215, 217 – 219 Aedeagus, dorsal (209, 213, 217), ventral (210, 214, 218), lateral (211, 215, 219). FIGURES 208 – 211 Amydetes marajoara sp. no v .. 212 – 215 Amydetes vagalume sp. nov .. 216 – 219 Amydetes luzecu sp. nov. Scale. 200 µm.