Thisiomorphus bolivianus, Pollock, Darren A., 2016

Pollock, Darren A., 2016, Revision of Thisiomorphus Pic (Coleoptera: Mycteridae: Eurypinae) with descriptions of eleven new species from Central and South America and a key to genera of Neotropical Eurypinae, Zootaxa 4093 (3), pp. 301-322 : 309-311

Thisiomorphus bolivianus , new species

( Figs 2 , 34)

Holotype, female, labeled: “ BOLIVIA, S. Cruz, 4-6k SSE Buena Vista [-17.49915, -63.55253], F & F Hotel 10, 11 Nov. 2003 J. Wappes & B. Dozier // [large red label] HOLOTYPE ♀ Thisiomorphus bolivianus Pollock ”, in TAMU.

Paratypes: 1 female, labeled: “ BOLIVIA, Cochabamba Chapare, Villa Tunari [-16.974722, -65.420278] 12 Nov. 2003 J. Wappes & B. Dozier”, in FSCA; 1 female, labeled: “ BRAZIL, Rondonia 62km SE Ariquemes [- 2.952184, -59.927082], 8-20 Nov 1994 W. J. Hanson”, in BYUC.

Derivation of specific epithet. Named in reference to the country of Bolivia, in which two of the three known specimens were collected.

Diagnosis. This species, along with T. latus , are the only two in the genus exhibiting a bicolored dorsum, with reddish forebody and blue-black elytra and reddish scutellum, head and antennae. See the diagnosis for T. latus , above, for additional diagnostic features.

Description. Measurements (in mm): HL = 1.12–1.30; PL = 1.12–1.30; EL= 4.44–5.30; TL = 6.68–7.90; GHW = 1.36–1.52; GPW = 1.84–2.16; GEW = 3.20–3.52. Ratios: EL/GEW = 1.39–1.51; GPW/PL = 1.64–1.66; TL/GEW = 2.09–2.24; GPW/GHW = 1.35–1.43. With characters of Thisiomorphus , and the following:

Body broadly ovate (TL/GEW 2.18), lateral elytral margins distinctly arcuate.

Color. Antennae, maxillary palpi, head, pronotum and scutellum concolorous, rufo-testaceous; elytra dark, nearly black, with distinct blue metallic lustre; legs and venter uniformly rufo-testaceous.

Antennae relatively short, antennomeres 3–6 short, filiform, 7–10 short, only slightly expanded distally.

Pronotum distinctly wider than long (GPW/PL 1.65), much wider than head (GPW/GHW 1.40); lateral margins relatively parallel basally, then distinctly arcuate anteriorly, maximum width at posterior angles; hind angles not protruding; dorsal surface slightly and evenly convex, without depressions. Male genitalia unknown.

Distribution. The three known specimens are from BOLIVIA (Cochabamba, Santa Cruz) and BRAZIL (Rondônia).

FIGURE. 34. Known distributions of T. latus (circle), T. davidsoni (square), T. brasiliensis (triangles), T. bolivianus (stars), and T. convergens (diamond). Google maps via www.gpsvisualizer.com.

Figures

FIGURES 1 – 6. Dorsal habitus of Thisiomorphus species. 1. T. andrewsi, n. sp., male holotype; 2. T. bolivianus, n. sp., female holotype; 3. T. brasiliensis, n. sp., male holotype; 4. T. caeruleus, n. sp., female; 5. T. convergens, n. sp., female holotype; 6. T. davidsoni, n. sp., female holotype.