insecta mundi - Center for Systematic Entomology

36 • INSECTA MUNDI 0129, July 2010 EDMONDS AND ZIDEK
Subsequently, Martínez and Pereira (1967) synonymized Phanaeus alvarengai Martínez and Pereira
(1955) and P. pertyi. In accordance with Article 53.3 of the International Code of Zoological Nomenclature
(ICZN 1999), Phanaeus alvarengai Martínez and Pereira is the senior primary homonym of Phanaeus
alvarengai Arnaud (1984), currently still placed in the genus Phanaeus (Edmonds 1994; Arnaud 2002c).
The fact that Martínez and Pereira placed their taxon in the subgenus Coprophanaeus of Phanaeus does
not, in accordance with Article 57.4 of the Code (ICZN 1999), shield Arnaud’s name from unavailability,
and, therefore, the name alvarengai sensu Arnaud must be replaced. We have referred the issue to the
species’ author, Patrick Arnaud, for rectification.
Coprophanaeus (Metallophanaeus) pessoai (Pereira, 1949)
Fig. 53, 55, 58, 85-89
Phanaeus pessoai Pereira, 1949: 226
Coprophanaeus pessoai (Pereira) (recomb. Edmonds 1972: 841)
Type. Holotype male, Museu de Zoologia, Universidade de São Paulo, São Paulo.
Diagnosis. General – Paraocular areas (genae) densely rugose, strongly raised in front of eye (Fig. 61),
carina adjacent to eye largely obliterated by strong rugosity. Posteromedian portion of pronotum (Fig. 53)
strongly and densely punctate, lacking distinct granules or ridges (sculpturing stronger in females);
posterior angle normal, basal fossae small, incorporated into inner ends of distinct sulcus paralleling
posterior margin. Salient anterior angle of metasternum acutely angled, sometimes almost conical (Fig.
58). Ventral surface of protibia lateral to longitudinal carina mostly smooth, usually with single or double
row of shallow, confluent punctures paralleling longitudinal carina (as in Fig. 51, arrow). Striae (x5)
weakly impressed, simple; bases of striae 1-4 impressed, not distinctly fossate. Elytral interstriae flat,
transversely wrinkled (Fig. 55). Pygidium with broad, shallow basal groove. Length 18-21 mm. Color
bright metallic green, often with golden reflections.
Male (Fig. 87-89) – Head with evenly tapering horn, base of horn abruptly swollen. Pronotum of large
male with deep anteromedian concavity at summit bearing straight transverse ridge. Tips of parameres
with strongly developed rounded, flat flanges.
Female (Fig. 85-86) – Cephalic carina with prominent conical median tubercle. Pronotum with deep,
oval anteromedian concavity, bearing strongly raised, trituberculate, quadrate process adjacent to anterior
margin.
Specimens examined – 8.
Distribution. Chaco province (Fig. 62).
Collection Records. ARGENTINA: Salta – Dist o . San Martín (Mar). BOLIVIA: Santa Cruz – Cordillera
Prov., Puesto Salas (Nov); Palmar de las Islas, 19 o 25’S 60 o 32’W, 270 m (Feb). PARAGUAY:
Boquerón – Guachalla [Alto Río Pilcomayo] (Oct); Filadelfia (Colonia Fernheim). Chaco – Fortín
Esmeralda.
Comments. The brilliant coloration of this rare denizen of the Chaco is stunning. According to Pereira
(1949), references by Pessôa (1935) and Pessôa and Lane (1941) to C. horus are actually to this species.
Coprophanaeus (Metallophanaeus) thalassinus (Perty, 1830)
Fig. 52, 62, 90-94
Phanaeus thalassinus Perty, 1830: 40
Coprophanaeus thalassinus (Perty) (recomb. by Blackwelder 1944: 209)
Type. Holotype male, Zoologische Staatssammlung, Munich.