Hansreia coriacea ( Schmidt 1922 )

Valois, Marcely, Vaz-De-Mello, Fernando Z. & Silva, Fernando A. B., 2015, A taxonomic review of the Neotropical genus Hansreia Halffter & Martínez, 1977 (Coleoptera: Scarabaeidae, Scarabaeinae), Zootaxa 4027 (2), pp. 205-226 : 210-211

Hansreia coriacea ( Schmidt 1922) nov. stat.

( Figs 12 , 20, 21 , 38 –44, 64)

Canthon affinis var. coriaceus Schmidt 1922: 72 , 97 (original description); Balthasar 1939: 194 (identification key). Canthon affinis coriaceum: Blackwelder 1944: 198 (checklist).

Hansreia affinis coriaceum : Vaz-de-Mello 2000 (checklist).

Material studied. Lectotype of Canthon affines var. coriaceus Schmidt ♂ (here designated; SMTD): 1. (green label, printed in black) Amazonas/ 2. (green label, printed in black) Coll. C. Felsche Kauf 20, 1918/ 3. (red label, printed in black) Typus / 4. (old white label, handwritten) C. affinis var. coriaceus n. s. A. Schmidt/ 5. (red label, printed and bordered in black) Lectotype ♂ Canthon affinis var. coriaceus Schmidt des. F.Z. Vaz-de-Mello, 2014.

Non-type material: BRAZIL: PARÁ, Santarém, Bacia do Rio Maró, (2°45.585'S, 55°40.547'W), XII.2008, R. Andrade— 14 ♂ 4 ♀ ( CEMT); same, (2°45.899'S, 55°39.946'W)— 12 ♂ 14 ♀ ( CEMT), (2°43.913'S, 55°40.528'W), XII.2008, R. Andrade— 3 ♂ 6 ♀ ( CEMT), (2°45.977'S, 55°40.468'W), XII.2008, R. Andrade— 2 ♂ 6 ♀ ( CEMT), (2°45.384'S, 55°39.81'W), XII.2008, R. Andrade— 15 ♂ 7 ♀ ( CEMT), (2°43.657'S, 55°39.918'W), XII.2008, R. Andrade— 2 ♂ 1 ♀ ( CEMT), (2°45.877'S, 55°39.866'W), XII.2008, R. Andrade— 2 ♂ ( CEMT). AMAZONAS, Paxiúba, margem do Rio abacaxis, (04°28’48”S, 58°34’24”W), 2.VI.2008, D. M. Takiya— 1 ♂ ( CEMT), (4°48'48"S, 58°34'24"W), VI.2008, D.M. Takiya 1 ♂ —( CEMT); Borba maués, (5°41'52"S, 58°41'52"W), 26.V.2008, D.M. Takiya— 1 ♂ ( CEMT); (5°15'09"S, 58°41'52"W), 26.V.2008, D.M. Takiya— 1 ♂ ( CEMT).

Diagnosis. H. coriacea can be readily distinguished from others species by the pronotum surface opaque, completely covered by dense microgranulation, ocellate microtubercles and small setae ( Figs 12 , 20, 21 ).

Endophallus: Lateral lobe of A+SA sclerites with apex bowed ( Fig. 38 ). Horseshoe-shaped sclerite curved with a shorter “arm” strongly expanded at inner margin, claviform ( Fig. 41 , arrow).

Description. Length. 7.4–9.6 mm. Head. Dark brown with reddish or greenish sheen. Surface around eye, in dorsal view, with yellowish or greenish sheen; shiny surface extends by approximately one-half of eye width in dorsal view. Pronotum. Margin between lateral and posterior angles approximately straight. Disc dark brown, with reddish and silky sheen ( Figs 20, 21 ). Pronotum surface completely covered by dense microgranulation and ocellate microtubercles; short setae homogeneously distributed on surface ( Figs 20, 21 ). Elytra. Brown with smooth reddish sheen. Anterior portion of seventh elytral stria with inconspicuous elevation. Seventh and eighth striae inconspicuous on basal fourth of elytra. Eighth stria narrower on anterior portion of elytra. Abdomen. Disc of pygidium with shiny, sparse and irregular microtubercles. Secondary sexual characters. Besides the sexual dimorphism mentioned to the genus, we can find no significant difference between males and females of this species. Aedeagus. [Lateral view]—parameres symmetric, rectangular in shape, with two-thirds of the phallobase length (Fig. 44). Apex of parameres, between apical and dorsal margins, with rectangular projection as wide as long. Inner angle between apical and dorsal margins with approximately 90°. Inner angle between apical and ventral margins with approximately 55°. [Ventral view]—inner margin at apical third of parameres with lobe as wide as long; lobes almost touching (Fig. 42). [Dorsal view]—Inner margin of parameres clearly convergent at apex (Fig. 43). Endophallus: FLP sclerite irregular, about two-thirds of A+SA length ( Fig. 39 ). SRP sclerite circular, with conspicuous lobe projected outward ( Fig. 40 ).

Figures

FIGURES 10 – 15. Hansreia Halffter & Martínez, dorsal view. 10 — H. affinis (Fabricius), male; 11 — H. oxygona (Perty), male; 12 — H. coriacea (Schmidt), male; 13 — H. krinskii sp. nov., male; 14 — H. peugeoti sp. nov., male; 15 — H. grossii sp. nov., male.

FIGURES 18 – 25. Pronotum. 18 — Hansreia oxygona (Perty); 19 — H. krinskii, male; 20 — H. coriacea (Schmidt), male; 21 — H. coriacea (Schmidt), male, detail of pronotum disc; 22 — H. peugeoti, male; 23 — H. peugeoti, male; 24 — H. grossii, male; 25 — H. grossii, male, detail of pronotum disc.

FIGURES 38 – 41. Endophallus sclerites in Hansreia coriacea (Schmidt) nov. stat. 38 — Complex of axial and subaxial sclerites (A + SA); 39 — Fronto-lateral peripheral sclerite (FLP); 40 — Superior-right peripheral sclerite (SRP); 41 — Horseshoeshaped sclerite (short arm, arrow). FIGURES 42 – 44. Aedeagus in Hansreia coriacea (Schmidt) nov. stat. 42 — Ventral view; 43 — Dorsal view; 44 — Lateral view.