Thisiomorphus caeruleus Pollock, 2016, new species
Creators: name: Pollock, Darren A.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Mycteridae
Thisiomorphus
Thisiomorphus caeruleus

description: 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).
description: Published as part of 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, pp. 301-322 in Zootaxa 4093 (3) on page 313, DOI: 10.11646/zootaxa.4093.3.1, http://zenodo.org/record/264106