Beltia Jacoby,

Flowers, R. Wills, 2018, A review of the genus Beltia Jacoby (Chrysomelidae: Eumolpinae: Eumolpini), with descriptions of fourteen new species from Costa Rica, Panama, and northwestern South America, Insecta Mundi 672, pp. 1-43: 5-6

publication ID

http://doi.org/10.5281/zenodo.3713503

publication LSID

lsid:zoobank.org:pub:FD766FC7-F2E5-47D1-96CE-9FED2AF7F483

DOI

http://doi.org/10.5281/zenodo.3716642

persistent identifier

http://treatment.plazi.org/id/026C87B4-F33F-FFF0-FF15-FF60FA39676A

treatment provided by

Felipe

scientific name

Beltia Jacoby
status

 

Key to the Known Species of Beltia Jacoby 

1. Profemur armed ( Fig. 9, 10View Figures 9–17)..................................................... 2 — Profemur unarmed............................................................ 4

2(1). Profemur with a large quadrate tooth ( Fig. 9View Figures 9–17)................ B. nicaraguensis Jacoby  — Profemur with a small acute tooth ( Fig. 10View Figures 9–17)........................................ 3

3(2). Known from Costa Rica and Panama............. B. tisingalita Flowers  , new species — Known from South America................................ B. weyrauchi (Bechynĕ) 

4(1). Median lobe of aedeagus with strong lateral flanges, giving the en-face view an “arrowhead” shape ( Fig. 13View Figures 9–17)............................................................. 5

— Median lobe of aedeagus with shape different from above............................ 9

5(4). Pronotum of male strongly transverse ( Fig. 11View Figures 9–17), that of female trapezoidal; entire dorsum deep metallic purple................................ B. angustomarginata (Bechynĕ) 

— Pronotum of both sexes trapezoidal ( Fig. 12View Figures 9–17); purple color, if present, confined to elytra.... 6

6(5). Head, body, femora, and tibiae with various combinations of metallic colors; tarsi reddish brown; antennae tan, with only segments 10 and 11 darkened...... B. chiriquensis (Jacoby) 

— Antennae with at least apical three segments darkened, or entire antenna yellow; if tarsi tan or brown, then at least apex of tibiae of similar color.............................. 7

7(6). Known from Peru east of the Andes; apical segment of female abdomen with a pair of small tubercles ( Fig. 14View Figures 9–17)..................................... B. placidula (Bechynĕ) 

— Known from west of the Pacific coastal areas of Colombia and Lower Central America; female abdomen lacking tubercles................................................... 8

8(7). Upper surface highly polished and shining, legs dark metallic blue or purple; known from western Colombia............................. B. gorgona Flowers  , new species

— Upper surface blue or olive green, not highly polished; pronotum densely punctate, with conspicuous punctulae between main punctures (as in Fig. 31View Figures 27–35); legs dark reddish brown; known from southeastern Costa Rica and western Panama B. osa Flowers  , new species

9(4). Intercoxal process of prosternum distinctly emarginate, with lateral angles prominent ( Fig. 15View Figures 9–17)...................................................................... 10

— Intercoxal process of prosternum truncate or at most shallowly emarginate............ 14

10(9). Endophallus of aedeagus with a large twisted subapical sclerotized bar and apical fields of spicules ( Fig. 48bView Figures 42–49); known from Ecuador west of the Andes.. B. ledesmae Flowers  , new species

— Endophallus lacking above combination of characters.............................. 11

11(10). Smaller (<6 mm)............................................................ 12 — Larger (≥ 6 mm)............................................................. 13

12(11). Antenna entirely testaceous. Aedeagus with basal hood and median lobe subequal in length; apex of median lobe tapering to a point ( Fig. 45aView Figures 42–49); known from Amazonian Peru......................................... B. confusa Flowers  , new species

— Antenna testaceous, with the two apical segments black. Aedeagus with basal hood almost twice the length of median lobe; apex of median lobe sinuate, with a central projection ( Fig. 55aView Figures 50–56); known from Amazonian Ecuador............. B. talaga Flowers  , new species

13(11). Anterior angles of pronotum directed forward, visible in dorsal view ( Fig. 16View Figures 9–17); known from the Amazon Basin of Ecuador and northeastern Peru.. B. napoensis Flowers  , new species

— Anterior angles of pronotum not directed forward nor visible when viewed from directly above the head; large body size (≥ 9 mm); size of punctures on pronotum subequal to those of elytra; known from the western slope of the Ecuadorian Andes... B. tsachila Flowers  , new species

14(9). Elytra strongly and rugosely punctate ( Fig. 33View Figures 27–35)......... B. rugosa Flowers  , new species — Elytra smooth, or moderately or finely punctate................................... 15

15(14). Meso- and metathorax entirely yellowish brown beneath; dorsal color metallic green................................................... B. tilarana Flowers  , new species

— Thorax beneath dark metallic, at least in part; dorsal color various................... 16

16(15). Head, body, legs, and apical half of antennae shining dark blue.................................................................... B. vacilona Flowers  , new species

— Other colors present; if largely dark blue, at least tarsi and/or the majority of antennomeres brown or tan.............................................................. 17

17(16). Legs entirely reddish brown; male with transverse patch of dense short setae on abdominal sterna IV and V ( Fig. 17View Figures 9–17)........................ B. herreri Flowers  , new species

— Legs dark metallic, at least on femora; males with setae similar on abdominal sterna III–VI......................................................................... 18

18(17). Endophallus of aedeagus with a twisted subapical sclerotized bar and apical fields of spicules ( Fig. 43bView Figures 42–49); sides of pronotum shallowly curved ( Fig. 19View Figures 18–26); known from western Ecuador..................................... B. awapita Flowers  , new species

— Endophallus lacking subapical structures; sides of pronotum strongly curved ( Fig. 34View Figures 27–35); known from Costa Rica............................ B. sanchezae Flowers  , new species