Terataki erithracus (Nordmann, 1837) Nordmann, 1837

Chatzimanolis, Stylianos, 2013, Te ra ta k i, a new genus of Staphylinini (Coleoptera: Staphylinidae: Staphylininae) from South America, Zootaxa 3750 (3), pp. 251-264 : 260-261

Terataki erithracus (Nordmann, 1837) , new combination

( Figs. 6 , 10 , 22–24 )

Creophilus erithracus Nordmann, 1837: 25 .

Creophilus chloris Nordmann, 1837: 26 new synonymy.

Staphylinus erithracus (Nordmann) ; Erichson, 1840: 401. Staphylinus chloris (Nordmann) ; Erichson, 1840: 401.

Trigonopselaphus erithracus (Nordmann) ; Gemminger and Harold, 1868: 597. Trigonopselaphus chloris (Nordmann) ; Gemminger and Harold, 1868: 597. Torobus erithracus (Nordmann) ; Herman, 2001: 29.

Torobus chloris (Nordmann) ; Herman, 2001: 29.

Type material. Lectotype for C. erithracus , here designated: male, with labels as follows: “ 5979” / “ Type ” / “ Lectotype Creophilus erithracus Nordmannn des. Chatzimanolis 2013” / “ Terataki erithracus (Nordmann, 1837) det. Chatzimanolis 2013” (ZMHB). Nordmann (1837) stated in the original description that the type locality is Brazil.

Lectotype for C. chloris , here designated: female with labels as follows: “ 5978” / “ Type ” / “= erithracus Nordmann nach Fauvel” / “ Lectotype Creophilus chloris Nordmannn des. Chatzimanolis 2013” / “ Terataki chloris (Nordmann, 1837) det. Chatzimanolis 2013” (ZMHB). Nordmann (1837) stated the type locality as “ Brasilia?” in the original description. Even though it is stated in one of the labels above that Fauvel suggested the synonymy of C. chloris with C. erithracus , I could not find any published records of that synonymy.

Additional material. BRAZIL: Minas Gerais: Sete Lagoas, Reinhardt (1 ZMUC).

Diagnosis. Terataki erithracus can be distinguished from all other species of Terataki by the metallic bluepurple coloration of the head and pronotum and the dark metallic purple coloration of the elytra. Additionally, the paramere of the aedeagus in Te. erithracus is separated into two lobes to near the base and has sensory spinules.

Description. Body length 13.8–14.2 mm.

Coloration of head and pronotum metallic blue-purple. Ventral surface of head and prothorax metallic dark blue-purple. Antenna reddish brown with antennomeres 1–3 metallic blue-brown. Mesoscutellum dark metallic purple with dark orange border. Elytra dark metallic purple. Abdomen dark metallic purple-blue with posterior margin of segment VII orange; tergite VIII black except orange on anterolateral corners; sternite VIII orange anteriorly and black posteriorly. Legs brown, except tarsi dark orange.

Head slightly transverse, width: length ratio = 1.21; head hexagonal in shape, widest at temples. Surface of epicranium with polygon-shaped microsculpture, micropunctures and with medium-sized punctures scattered throughout except medially. Antennomeres 1–3 longer than wide; antennomeres 4–5 subquadrate; antennomeres 6–10 transverse; antennomeres 5–7 gradually increasing in width; antennomere 8 slightly shorter than antennomere 7; antennomeres 8–10 similar in size; antennomeres 6–10 asymmetrical (slightly off center). Antennomeres 1–4 with several rows of macrosetae; antennomeres 5–11 with microtrichiae.

Pronotum subquadrate, width: length ratio = 1.13; with transverse microsculpture and rows of micropunctures; medium-sized punctures present around the margin of pronotum and in two loosely defined sets of rows on each half of pronotum, one set of rows around midline and another approximately halfway between midline and lateral margin; each row with 2–3 punctures; distance between punctures in each row varies. Mesoscutellum with polygon-shaped microsculpture and large, almost confluent punctures.

Elytra subequal to pronotum with medium-sized uniform punctation; distance between punctures subequal to 1.5 times width of punctures; elytra with dense polygon-shaped microsculpture and transverse lines.

Abdomen. Tergite II without curved (arch-like) ridge; tergites III–V with anterior basal carina but with no curved ridge. Abdominal tergites with dense transverse surface microsculpture and micropunctures; with dense punctation (except medially on tergite III); distance between punctures subequal to width of puncture except punctation less dense medially; punctures transversely elongate on tergites IV–VII. Sternum with uniform dense punctation, distance between punctures subequal to width of puncture; sternum covered with dense transverse microsculpture.

Secondary sexual structures. Males with transversely elongate porose structure on sternite VII; posterior border of sternites VI–VII with broad emargination medially; sternite VIII with shallow V-shaped emargination medially; sternite IX with shallow U-shaped emargination medially. Females with no obvious secondary sexual structures.

Aedeagus as in Figs. 22–24 ; paramere divided to near base into two lobes, lobes together shorter and narrower than median lobe; in dorsal view distance between two lobes wider medially; each lobe converging to rounded apex; in lateral view paramere strongly convex; with sensory spinules as shown in Fig. 24 . Median lobe in dorsal view wide, converging to emarginate apex, with single wide dorsal tooth; anterior third of median lobe appears darker and slightly elevated; apex of median lobe with sensory spinules; in lateral view becoming much narrower near apex.

Figures

FIGURES 3 – 6. Head of Terataki Chatzimanolis. 3. Te. badiipennis (Nordmann). 4. Te. liliputanum (Bernhauer). 5. Te. caterinoi Chatzimanolis. 6. Te. erithracus (Nordmann). Scale bar = 1.5 mm.

FIGURES 7 – 10. Pronotum of Te ratak i Chatzimanolis. 7. Te. badiipennis (Nordmann). 8. Te. liliputanum (Bernhauer). 9. Te. caterinoi Chatzimanolis. 10. Te. erithracus (Nordmann). Scale bar = 1.0 mm.

FIGURES 22 – 24. Aedeagus of Te. erithracus (Nordmann). 22. Dorsal view. 23. Lateral view. 24. Detail of paramere, ventral view.