Eudicella (Eudicella) nana Seidel

Seidel, Matthias, 2016, Morphology and DNA barcoding reveal a new species of Eudicella from East Africa (Coleoptera: Scarabaeidae: Cetoniinae), Zootaxa 4137 (4), pp. 535-544 : 536-541

Eudicella (Eudicella) nana Seidel , new species

Type material. Holotype male at BMNH with label data: a) “ Uganda, Budongo Forest, 6.1.1995 ” (handwritten), b) “No.: GB 222” (typeset and handwritten), c) “ex. Gerhard Beinhundner Collection” (handwritten), d) male genitalia card mounted, e) wing card mounted, f) “no suitable thorax tissue for DNA extraction” (typeset), g) red holotype label. Allotype female at GBPC with label data: a) “ Uganda, Budongo Forest, 6.1.1995 ” (handwritten), b) “ DNA extract No.: GB 220” (typeset and handwritten), c) “Gerhard Beinhundner Collection” (handwritten), d) mouthparts card mounted, e) wing card mounted, f) red allotype label. Paratype male at GBPC with label data: a) “ Uganda, Budongo Forest, 6.1.1995 ” (handwritten), b) “No.: GB 223” (typeset and handwritten), c) “Gerhard Beinhundner Collection” (handwritten), d) male genitalia card mounted, e) wing card mounted, f) “no suitable thorax tissue for DNA extraction” (typeset), g) red paratype label. Paratype male at GBPC with label data: a) “ Uganda, Budongo Forest, 6.1.1995 ” (handwritten), b) “ DNA extract No.: GB 215” (typeset and handwritten), c) “Gerhard Beinhundner Collection” (handwritten), d) male genitalia card mounted, e) wing card mounted, f) red paratype label. Paratype male at GBPC with label data: a) “ Uganda, Budongo Forest, 6.1.1995 ” (handwritten), b) “No.: GB 216” (typeset and handwritten), c) “Gerhard Beinhundner Collection” (handwritten), d) male genitalia card mounted, e) wing card mounted, f) “no suitable thorax tissue for DNA extraction” (typeset), g) red paratype label. Paratype male at MSPC with label data: a) “ Uganda, Budongo Forest, 6.1.1995 ” (handwritten), b) “ DNA extract No.: GB 35” (typeset and handwritten), c) “ex. Gerhard Beinhundner Collection” (handwritten), d) “Coll. Matthias Seidel 2015” (typeset), e) male genitalia card mounted, f) mouthparts card mounted, g) wing card mounted, h) red paratype label. Paratype female at BMNH with label data: a) “ Uganda, Budongo Forest, 6.1.1995 ” (handwritten), b) “No.: GB 219” (typeset and handwritten), c) “ex. Gerhard Beinhundner Collection” (handwritten), d) mouthparts card mounted, e) wing card mounted, f) red paratype label. Paratype female at MSPC with label data: a) “ Uganda, Budongo Forest, 6.1.1995 ” (handwritten), b) “No.: GB 221” (typeset and handwritten), c) “ex. Gerhard Beinhundner Collection” (handwritten), d) “Coll. Matthias Seidel 2015” (typeset), e) eggs card mounted, f) wing card mounted, g) red paratype label. Paratype male at GBPC with label data: a) “ Uganda, Semuliki Forest, 10.1994” (handwritten), b) “ DNA extract No.: GB 218” (typeset and handwritten), c) “Gerhard Beinhundner Collection” (handwritten), d) male genitalia card mounted, e) mouthparts card mounted, f) wing card mounted, g) red paratype label. Paratype male at GBPC with label data: a) “ Uganda, near Kampala, V.1994 ” (typeset), b) “ DNA extract No.: GB 34” (typeset and handwritten), c) “Gerhard Beinhundner Collection” (handwritten), d) male genitalia card mounted, e) mouthparts card mounted, f) wing card mounted, g) red paratype label. Paratype male at GBPC with label data: a) “ Kenya, Teita hills, 10- 15.10.1995, coll. G. Bentz” (typeset), b) “ DNA extract No.: GB 217” (typeset and handwritten), c) “Gerhard Beinhundner Collection” (handwritten), d) male genitalia card mounted, e) mouthparts card mounted, f) wing card mounted, g) red paratype label. Paratype male at SMNS with label data: a) “ Uganda – Kisogo, Kiala, VI-06, P. Stobbia” (handwritten), b) “ Eudicella woermanni ugandensis (Allard, 1985), R. Giannatelli det. 2008” (typeset), c) “ DNA extract No.: E 272” (typeset and handwritten), d) male genitalia card mounted, e) red paratype label.

Description. Holotype male ( Figs. 1, 3, 4, 6, 7 , 17 ). Total length 32 mm; width across humeri 14.5 mm. Colour: Head (except clypeus), pronotum, scutellum, pygidium, legs, and venter green with weak red reflections. Elytra yellow with dark green band at the disc ending in black humeral and apical maculae; humeral and apical maculae elongate to midpoint of elytral band, not abutting; elytral suture black with green border reduced from scutellum towards elytral apices; elytral margin black. Clypeus tawny and green iridescent at base. Head: Frons posteriorly smooth with fine, sparse punctures becoming densely punctate near lateral and anterior margins; small and large punctures mixed; lateral margin with short, tawny setae. Interocular width equals 5.5 transverse eye diameters. Clypeus ending in a narrowly forked horn with black tips ( Fig. 17 ); width of clypeal fork 2.9 mm; external tubercles bilateral of the clypeal horn ending in transversely blunt apices ( Fig. 17 ). Labium moderately deeply punctate, setigerous; setae long, tawny ( Fig. 4 ). Pronotum: Surface evenly convex in lateral view; sparsely punctate at disc and densely punctate towards margins. Scutellum: Surface sparsely punctate, punctures small. Elytron: Surface punctate; punctures small and dense; 1 row of moderately large punctures adjacent to suture. Pygidium: Disc regularly convex in lateral view; surface rugose with sparse punctation ( Fig. 7 ); setigerous; setae short, tawny. Venter: Mesosternal apex produced; abdominal ventrites 1 to 5 with longitudinal impression. Legs: Colour of the body; protibia denticulate at interior margin; metatibia half green, apically tawny; metatarsi reddish brown, others black ( Fig. 1 ). Parameres: Form symmetrical ( Fig. 6 ). Wings: transparent, tawny with a dark brown bar close to the tip ( Fig. 3 ).

Allotype. Female ( Figs. 2, 5, 8 ). Total length 29.5 mm; width across humeri 14 mm. Colour: Same as in the holotype. Elytra with elongate humeral and rounded, apical maculae; Clypeus tawny with green iridescence. Head: Frons posteriorly with fine to medium, sparse punctures becoming densely, confluently rugopunctate at disc and margins; small and large punctures mixed; lateral margin with short, tawny setae. Interocular width equals 5.0 transverse eye diameters. Clypeus unarmed; Labium rugose (wavy ridges) with both small and deep, large punctures, setigerous; setae long, tawny ( Fig. 5 ). Pronotum: Surface evenly convex in lateral view; sparsely punctate. Scutellum: Surface with small punctures evenly distributed and moderately large punctures sparsely distributed. Large deeper punctures at the anterior margin. Elytron: Surface punctate; punctures small, dense; three parallel rows of large punctures between suture and discal green band. Pygidium: Disc evenly convex in lateral view; surface highly rugose-reticulate without punctation ( Fig. 8 ); setigerous; setae short, tawny. Venter: Mesosternal apex produced; abdominal ventrites without impressions. Legs: Colour of the body; metatibia half green, apically tawny; metatarsi reddish brown, others black. Wing: Same as in holotype.

Paratypes. Male (n = 8). Total length 24–34 mm. Width across humeri 11.0– 14.8 mm. The paratypes from Budongo ( Uganda), Semuliki Forest ( Uganda), Kisogo ( Uganda), and the Taita Hills ( Kenya) possess the same appearance as the holotype. Humeral and apical maculae vary in length. Width of clypeal fork: 1.9–2.9 mm. The paratype from Kampala ( Uganda) differs in colour; the discal band on the elytron is brighter, the maculae are brown. All legs are reddish brown. Female (n = 2). Total length 30.5–31.0 mm. Width across humeri 14 mm. The paratypes possess the same appearance as the allotype. In one specimen all tarsi are reddish brown.

Diagnosis. This species can be distinguished from other Eudicella (Eudicella) species based on the following combination of characters: clypeus tawny and green iridescent at its base; clypeal fork short and narrow ( Fig. 17 ); pygidium rugosely sculptured ( Figs. 7–8 ); labium deeply punctate in males ( Fig. 4 ) and rugose in females ( Fig. 5 ); wings transparent, tawny with a dark brown bar close to the tip ( Fig. 3 ). Furthermore, the form of the parameres is unique for E. nana and E. darwiniana and can be distinguished from the other species in the genus ( Fig. 6 ).

Etymology. The species name is derived from the Latin word for dwarf (nanus) as it is the smallest species in the subgenus Eudicella .

Figures

FIGURE 1 – 8. Eudicella nana new species. 1. Male holotype, dorsal view. 2. Female allotype, dorsal view. 3. Male wing, holotype. 4. Male labium, paratype, ventral view. 5. Female labium, paratype, ventral view. 6. Male parameres, holotype, frontal view. 7. Male pygidium, holotype, frontal view. 8. Female pygidium, allotype, frontal view.

FIGURE 17 – 20. Clypeal horns of Eudicella (Eudicella). 17. Eudicella nana new species. 18. Eudicella darwiniana Kraatz, 1880. 19. Eudicella pauperata Kolbe, 1884. 20. Eudicella grallii (Buquet, 1836).