Thisiomorphus caeruleus, 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 : 313

Thisiomorphus caeruleus , new species

( Figs 4 , 15 , 37 )

Holotype, male, labeled: “Cerro Campana [8.66667, -79.933333], 800m Panamá Prov., R.P. 29 Apr. ’70 H. P. Stockwell // Mycterus/ Lacconotus n. genus sp. 1 // HPSC // [large red label] HOLOTYPE ♂ Thisiomorphus caeruleus Pollock ”, in USNM.

Allotype, female, labeled: “ PANAMA: Panama Prov. Cerro Campana V-17-1993 F. Andrews & A. Gilbert // CDAE // [large red label] ALLOTYPE ♀ Thisiomorphus caeruleus Pollock ”, in CSCA.

Paratypes: 1 female, labeled: “ Panamá: Panamá Pr. Cerro Campana, 850m 8°40’N, 79°56’W 21 Apr. ’73 Stockwell”, in USNM; 2 females, labeled: “PortoBello [9.550007, -79.649962] PanMar 7 11 EA Schwarz”, in NMNH; 1 female, labeled: “ COSTA RICA: Heredia: Est. Biol. La Selva, 50-150m, 10°26’N 84°01’W [10.433333, -84.016667]. 18.MAY.1993, INBio-OET: M/05/100 // [blue label] CSCA Loan 2011”, in CSCA; 1 female, labeled: “ PANAMA: Panama Altos de Campana 26 May 1996 R. Turnbow”, in RHT; 1 male, labeled: “ COSTA RICA. Prov. Limón. R.B. Hitoy Cerere, Send. Espavel. 560m. 18 SEP-4 OCT 2003, B. Gamboa, E. Rojas, W.Arana, Malaise #3, L_S_401200_569800 [9.661438, -83.030709] #75493 // [barcode label] INB0003782859 INBIOCRI COSTA RICA ”, in INBC; 1 male, labeled: “ COSTA RICA. Prov. Alajuela, P.N. Volcán Tenorio, Guatuso, Falda Norte del Volcán Tenorio I, 1500 – 1600m, 30 MAY – 9 JUL 2005, J Azofeifa, Tp. malaise, L_N_294400_426300 [10.670109, -85.00698] #83818 // [barcode label] INB0003957449 INBIOCRI COSTA RICA ”, in INBC; 1 male, labeled: “ COSTA RICA. Prov. Limón. Pococí, Sector Cerro Cocorí, Finca de Elias Rojas. 160m. 23 NOV 1993 - 3 ENE 1994, E. Rojas, Malaise, L N 286000_567500 [10.594274, -83.716512] # 2593 // [barcode label] INB0003819911 INBIOCRI COSTA RICA ”, in INBC; 1 male, labeled: “ COSTA RICA. Prov. Limón, Valle de la Estrella, R.B. Hitoy Cerere. Estación Hitoy Cerere. 100m. 0 4 MAR 1994. G. Carballo. Malaise. L_N_643400_184600 [9.675378, -83.026776] # 2889 // [barcode label] INB0003497347 INBIOCRI COSTA RICA ”, in INBC.

Derivation of specific epithet. From the Latin word “ caeruleus ”, meaning “blue”, in allusion to the bluemetallic dorsal color of individuals of this species.

Diagnosis. Adults of this species share the following diagnostic features: color uniform, dark brown to piceous, with at least a trace of blue to purple metallic sheen; lateral margins of pronotum subparallel basally, then anteriorly arcuate.

Description. Measurements (mm, N=9): HL = 0.80–0.96; PL = 0.80–0.92; EL = 3.00–3.72; GHW = 1.00– 1.12; GPW = 1.08–1.28; GEW = 1.60–2.24; TL = 4.64–5.40. Ratios: EL/GEW = 1.54–1.95; GPW/PL = 1.30–1.43; TL/GEW = 2.38–2.93; GPW/GHW = 1.08–1.15. With characters of Thisiomorphus , and the following:

Body relatively elongate, narrowly ovate (TL/GEW 2.65), lateral elytral margins slightly arcuate.

Color. Antennae uniformly light rufous; maxillary palpi with 2 basal segments rufo-testaceous, distal palpomere distinctly darker, piceous; head and pronotum concolorous, rufo-piceous to near black, with slight bluepurple metallic sheen; elytra slightly lighter in color than forebody, also with metallic sheen; femora piceous, tibieae and especially tarsi lighter, rufous; venter uniformly dark, piceous.

Antennae moderately elongate, antennomeres 3–7 filiform; antennomeres 8–10 relatively elongate, slightly expanded distally.

Pronotum moderately wider than long (GPW/PL 1.37), slightly wider than head (GPW/GHW 1.12); lateral margins subparallel basally, then arcuate anteriorly, maximum width about midlength; hind angles not protruding; dorsal surface evenly convex, without depressions.

Male genitalia. Parameres shorter than basale, inner margins shallowly sinuate basally; basale with anterior margin distinctly curved, lateral margins sinuate.

Distribution. Specimens are known from COSTA RICA (Alajuela, Heredia, Limón) and PANAMA (Coclé, Colón, Panamá).

Figures

FIGURE 37. Known distributions of T. caeruleus (white squares) and T. solisi (red circles). Google maps via www. gpsvisualizer. com.

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.

FIGURES 13 – 20. Male genitalia of Thisiomorphus species. 13. T. andrewsi, n. sp.; 14. T. brasiliensis, n. sp.; 15. T. caeruleus, n. sp.; 16. T. curticornis, n. sp.; 17. T. festivus, n. sp.; 18. T. inaequalis, n. sp.; 19. T. osaensis, n. sp.; 20. T. solisi, n. sp..