Deltochilum (Aganhyboma) titovidaurrei, Silva, Fernando A. B., Louzada, Júlio & Vaz-De-Mello, Fernando, 2015

Silva, Fernando A. B., Louzada, Júlio & Vaz-De-Mello, Fernando, 2015, A revision of the Deltochilum subgenus Aganhyboma Kolbe, 1893 (Coleoptera: Scarabaeidae: Scarabaeinae), Zootaxa 3925 (4), pp. 451-504 : 467-468

Deltochilum (Aganhyboma) titovidaurrei new species

( Figs 4 , 42, 90, 100)

Etymology. Named in honour of Tito Vidaurre Sánchez, a friend and collaborator in scarabaeine studies.

Description. Body. Head dark green with a weak sheen or opaque, pronotum in copper tone, with black or greenish spots, elytra dark brown, with an opaque sheen ( Fig. 100 ). Ventral surface black. Length 11 to 12 mm. Head. Dorsal surface with dense foveiform punctures, not confluent, separated at center of dorsal interocular surface by approximately twice their diameter. Punctures of variable size; largest around the eyes, and smallest on the anterolateral portion of the head, near the clypeus. Anterior margin of each puncture not defined (as in Fig. 60). Margin between clypeal teeth and genae curved outward approximately at halfway of its length. Thorax. Surface of pronotum with small punctures, apparently simple and uniformly distributed. Punctures on anterior angles larger, with a typical foveiform shape. Pronotum with a narrow greenish band extending the entire edge; Disc with transverse oval spot ( Fig. 100 ). Margin of pronotum (close to lateral angles) straight and emarginated, without depression. Margin between lateral and posterior angles approximately straight. Elytra. Lateral margins evenly curved outward ( Fig. 100 ). Striae punctate, however faintly visible at a small magnification. Interstrial surface with small, dispersed foveiform punctures, amid small bright ocellate punctures, randomly distributed. First interstria slightly brighter than rest of elytra. Basal carina of seventh interstria short, length about twice the width of the seventh interestria (as in Fig. 72). Length of apical carina of seventh interstria with approximately 2.5 times that of apical carina of sixth interstria. Abdomen. Punctures large and conspicuous, concentrated anterolaterally on each sternite, reduced to a narrow belt along midline of abdomen (as in Fig. 73). Pygidium with dense foveiform punctures, transverse, elliptical and almost confluent at base. Apex of pygidium acuminate (as in Fig. 73). Legs.

Protibia not abruptly widened. Middle protibial tooth equidistant between apical and basal teeth. Protibial spur acuminate at apex. Apical third of metatibia only slightly curved inward (as in Fig. 68), with five clearly visible longitudinal carinae. Inner margin of metatibia without longitudinal row of small tubercles. Anterior edge of profemur completely emarginate, with abundant setae in two-thirds of its length. Foveiform punctures of profemur with transverse elliptical shape. Metatarsus approximately two-thirds as long as metatibia. Secondary sexual characters. Male abdomen more longitudinally flattened than that of female. Males may possess medially between first and second ventrites, a small tubercle. Apical margin of pygidium longer in male. Protibial spur more acuminate in female.

Material studied. Holotype: BRAZIL: MINAS GERAIS: Lavras, near Parque Ecológico Quedas do Rio Bonito, (21°20'21.3"S, 44°58'38.8"W), 10.II.2009, Fernando Silva & Tito Vidaurrei (1 ♂ CEMT).

Paratypes [5]: BRAZIL: GOIÁS: Brazlândia, I.1994, E. Grossi (1 ♂ CEMT); Jatahy, 1895–96, Ch. Pujol (2 MNHN); MINAS GERAIS: Lavras, 15.II.1999, Leila A.S. (1 ♂ CEMT); Lavras, near Parque Ecológico Quedas do Rio Bonito, (21°20'21.3"S, 44°58'38.8"W), 10.II.2009, Fernando Silva & Tito Vidaurrei (1 ♀ CREN).

Sampling methods. baited pitfall trap with injured diplopods [2 specimens].

Habitat. Brazil (Goiás and Minas Gerais) ( Fig. 90 ), from available data this species inhabits Cerrado. Two individuals were collected in "Campo Limpo", Cerrado, 1,170 m AMSL.

Diagnosis and remarks (within the cupreicolle complex): basal carina of seventh interstria short, length about twice the width of the seventh interestria (as in Fig. 72); elytral coloration can vary from dark brown to black; disc of pronotum with transverse oval spot ( Fig. 100 ). The following aedeagus characters are also diagnostic: parameres shorter than phallobase, slightly rounded at apex, in lateral view forming an angle of approximately 30° with phallobase ( Fig. 4 ). Lamella copulatrix: left lobe “J”-shaped (as in Fig. 33); right lobe baton-shaped (as in Fig. 33). Superior right peripheral sclerite (SRP) as in Fig. 42. Center of genital segment with a sclerotized portion and "T"- shaped.

The specimens present the parameres and phallobase shorter or truncated than D. cupreicolle .

Figures

FIGURES 4 – 11. Aedeagus in Deltochilum (Aganhyboma). 4. D. titovidaurrei new species. 5. D. cupreicolle. 6. D. viridescens new status. 7. D. viridicatum new species. 8. D. amandaarcanjoae new species. 9. D. trisignatum. 10. D. cangalha new species. and D. alpercata new species. 11. D. finestriatum new species. Figures scale = 1 mm.

FIGURES 95 – 102. Species of D. (Aganhyboma). 95. D. trisignatum. 96. D. kolbei. 97. D. violaceum. 98. D. amandaarcanjoae new species. 99. D. cupreicolle. 100. D. titovidaurrei new species. 101. D. viridescens new status. 102. D. viridescens new status. Figures scale = 1 mm.

FIGURES 89 – 92. Known distribution of D. (Aganhyboma). 89. trisignatum complex. 90. cupreicolle complex. 91. acropyge complex. 92. finestriatum complex.