Feeridium woodruffi, Vaz-De-Mello, 2008

Vaz-De-Mello, Fernando Z., 2008, Synopsis of the new subtribe Scatimina (Coleoptera: Scarabaeidae: Scarabaeinae: Ateuchini), with descriptions of twelve new genera and review of Genieridium, new genus, Zootaxa 1955, pp. 1-75 : 25-26

5.1. Feeridium woodruffi new species

Type series: Holotype ♂: BRAZIL: Amazonas : Tabatinga, XI-1956, FM Oliveira ( BRBA).

Paratypes: BRAZIL: Amazonas: 70 km N Manaus, Fazenda Esteio , 07-VI-1986, B Klein, human dung, nature forest, AM (1 FVMC) ; Tabatinga , XI-1956, FM Oliveira (1 BRBA) ; FRENCH GUYANA: Cayenne: Nouragues , III-1997, F Feer (1 FVMC) ; V-1995 (1 FVMC) .

Description: Holotype ♂. Length 5.0 mm. Body elongated, aphodiiform ( Fig. 20). Head wider than long, clypeus with two rounded triangular teeth, slightly rounded laterally, with margin continuous to that of genae. Head convex, concave anteriorly and transversely concave anteriorly to each eye, forming a diagonal lump at each side, indicating the location of the indistinct clypeogenal suture. Head surface with mixed simple setose and simple smaller glabrous punctures, the setose ones denser on clypeus. Eyes about as wide as long ( Fig. 52); interocular width about 1.3 times eye width. Pronotal disc convex, covered by simple glabrous punctures distanced by 1 to 3 diameters, setae present only on anterolateral and lateral margins. Hypomeral posterior punctures larger but more sparse than at pronotal disc. Mesosternum covered by large almost coalescent ocellate diagonally elongated punctures. Mesometasternal suture strongly angled with a rounded tip, metasternal anterior lobe clearly narrower posteriorly, rhomboid. Metasternum with disc with rhomboid, feebly delimited concavity, covered by sparse glabrous simple punctures. Lateral metasternal lobes with diagonally elongated ocellated glabrous punctures, distanced by about one diameter. Elytra with discal striae sinuate-punctate, punctures indistinct and almost contiguous or separated by less than one diameter; discal interstriae with unorganized small punctures, distanced by two to four diameters; setae present only apically, and in one well delimited row in the eighth interstria, mesally. Protibiae with apicomesal tooth short, triangular and downward directed; spur flattened, ogival with acute tip. Mesotibiae and metatibiae with apex with apical carina accompanied by row of very dense and long setae, longer than basitarsomere ( Fig. 54). Metatibial basal tarsomere flattened and trapezoidal. Abdomen with rounded ocellate punctures on disc, distanced by about 2 diameters, with lateral row of setose punctures posteriorly on the last sternite. Pygidium with simple sparse setose punctures. Parameres as in Fig. 53.

Variation: Paratypes vary in size (4.5–5.2 mm) and in sexual features: females lack the protibial apicomesal tooth and the metasternal disc concavity.

Etymology: After Dr. Robert Woodruff, scarabeidologist. Although the specific epithet was used previously as an unpublished name for Martínez’s material deposited at BRBA, I extend my own homage to Dr. Woodruff.

Distribution: French Guyana and Brazil (Amazonas state), as for the genus ( Fig. 103).