Dichotomius (Luederwaldtinia) iannuzziae,

Valois, Marcely C., Vaz-De-Mello, Fernando Z. & Silva, Fernando A. B., 2017, Taxonomic revision of the Dichotomius sericeus (Harold, 1867) species group (Coleoptera: Scarabaeidae: Scarabaeinae), Zootaxa 4277 (4), pp. 503-530: 522-524

publication ID

https://doi.org/10.11646/zootaxa.4277.4.3

publication LSID

lsid:zoobank.org:pub:7545001C-720C-41E4-99B5-39146C291D7B

persistent identifier

http://treatment.plazi.org/id/343487EE-2113-FFF1-FF08-FEF4FE6F2CBF

treatment provided by

Plazi

scientific name

Dichotomius (Luederwaldtinia) iannuzziae
status

sp. nov.

Dichotomius (Luederwaldtinia) iannuzziae  sp. nov.

( Figs 8View FIGURE 8 a –h, 10g, 12a)

Etymology. Named after Prof. Luciana Iannuzzi as gratitude for many years of our fruitful collaboration.

Material examined. Type material, Holotype. BRAZIL: BAHIA: Porto Seguro, Reserva Ecológica do Pau Brasil , [-39,233766; -16,512466], 2-6.I.1990, E. & P. Grossi — 1♂ ( CEMT)  . Paratypes [175 males and 185 females]. BRAZIL: ALAGOAS: Ibateguara, Cachoeira , II.2008, B.K.C. Figueiras — 4♂ ( CEMT)  ; same data but Capoeirão , 17.I.2008 — 1♂ ( CEMT)  ; same data but Encanamento , 16.I.2008 — 1♂ 1♀ ( CEMT)  ; same data but Coimbra, IX.2007 — 2♂ ( CEMT)  ; same data but ( Varjão ), 19.IX.2007 — 1♂ 1♀ (CE-UFPE); PERNAMBUCO: Cabo, Reserva Ecológica de Gurjaú, XI.2003, S. Santos — 1♂ ( CEMT)  ; same data but 01.VI.2003 — 1♀ ( CEMT)  ; Sirinhaém, Usina Trapiche, Tauá fragment, XII.2010, R. P. Salomão — 3♂ 3♀ ( CEMT)  ; same data but 76msl (8°33'16"S, 35°9'27"W), 26.Vii.2010, Pitfall ( Fezes ) — 1♂ (CE-UFPE); Caruaru, [36°01'W, 8°09'S], 03.V.2008, F. Silva — 3♂ 2♀ (MZUFPA)GoogleMaps  ; same data but 06. VII.2012, F. Silva — 2♂ 2♀ (MZUFPA)GoogleMaps  ; same data but 05. VII.2012, F. Silva — 3♂ 4♀ (MZUFPA)GoogleMaps  ; same data but 02-04.VI.2011, Brejo de Altitude, F. Silva — 1♂ 1♀ (MZUFPA). Camaragibe, Aldeia, (7.977°S, - 35.006°W), 100m, 01-30.V.2016, P. C. Grossi— 22♂ 56♀ ( CERPE)GoogleMaps  . BAHIA: Eunápolis , [-39,068674; -16,47638], XI.1996, J.N.C. Louzada — 4♂ 3♀ ( CEMT)  ; Igrapiuna, Vila 5, (39°10'03"W; 13°48'08"S), X.2010, R. Carvalho— 3♀ ( CEMT)GoogleMaps  ; same data but Pancada Grande , (13°48'08"S; 39°10'3"W), 19.V.2010 — 5♂ ( CEMT)GoogleMaps  ; Ilhéus , [-39,046494; -14,792808], V.2000, V. A. Melo — 1♂ 2♀ ( CEMT)  ; same data but Fazenda Dichma , II.1995, C. Sperber— 3♂ 2♀ ( CEMT)  ; same data but 21.II.1995, C. Sperber — 29♂ 13♀ ( CEMT)  ; Ituberá , (39°12,10167'W; 13°49,14833'S), 11.XII.2008, Campos, E.M. & P. P. Lopez— 1♂ ( CEMT)GoogleMaps  ; same data but vila 5, (38°12,27333'W; 13°48,52833'S), XII.2008, E. M. Campus & P. P. Lopes — 1♂ ( CEMT)GoogleMaps  . Porto Seguro , VII.1993, E. Grossi - 4♂ ( CEMT)  ; Reserva Ecológica Pau Brasil, [-39,233766; - 16,512466], I.1990, E. &P. Grossi — 3♂ 2♀ ( CEMT)  ; same data but RPPN Veracel , (39°10'20.4"W; 16°22'46.4"S), XI.2004, J.N.C. Louzada — 48♂ 65♀ ( CEMT)GoogleMaps  ; same data but V.2012, (39°08'58.1"W; 16°22'25.8"S) — 2♂ 2♀ ( CEMT)GoogleMaps  ; same data but II.2006, F. Z. Vaz-de-Mello — 1♂ 1♀ ( CEMT)GoogleMaps  ; same data but V.2012, Audino et al.— 1♂ 2♀ ( CEMT)GoogleMaps  ; same data but (16°22'25.8"S, 39°08'58.1"W) — 3♂ 4♀ ( CEMT)GoogleMaps  ; same data but (16°21'11.2"S, 39°08'09.7"W)— 2♂ ( CEMT)GoogleMaps  ; Santa Terezinha, Serra da Jibóia , IV. 2009, A. F Brito — 13♂ 5♀ ( CEMT)  ; same data but IV.2009, A. F. Brito; E. M. Silva, E. Menezes — 5♂ 4♀ ( CEMT)  ; (CEMT); Una, Rebio de Una , VIII. 2005, P. Gross— 1♂ 2♀ ( CEMT)  ; W. Guimarães, Floresta, (13°41’21”S, 39°21’52”W), 146m, Pitfall, C.M.P. Leite— 1♂ ( CEMT) MINAS GERAIS: Ipatinga , [-42,611268; -19,401192], 1-15.XII.1984, E.& P. Grossi — 3♂ 2♀ ( CEMT)GoogleMaps  ; same data but XI.1991, E. Grossi — 1♀.GoogleMaps 

Diagnosis. Dichotomius iannuzziae  sp. nov. is similar to D. laevicollis  in having the disc of the pronotum with sparse and simple punctures, visible at high magnification ( Figs 4View FIGURE 4 d, 8d) and the lateral margin of the pronotum with a row of ocellate punctures on the anterior half (as in Fig. 4View FIGURE 4 e). However, it can be distinguished by: the posterior portion of pronotum, with a row of elliptical ocellate punctures ( Fig. 8View FIGURE 8 e); the surface of the gena, with ocellate punctures on the posterior portion ( Fig. 8View FIGURE 8 b); the length, 14–16 mm.

Description. Length: 14–16 mm. Body black and shiny, with purplish sheen ( Fig. 8View FIGURE 8 a). Head: clypeal surface with transversal ridges, absent on central portion ( Fig. 8View FIGURE 8 b). Clypeofrontal suture with a central and conical horn; and two weak knobs on the interocular portion of the head, close to the eye ( Fig. 8View FIGURE 8 b). Interocular surface slightly depressed on its central portion, with dense ocellate punctures separated from each other by less than their diameter ( Fig. 8View FIGURE 8 b). Pronotum: slightly convex in lateral view.Disc smooth ( Fig. 8View FIGURE 8 d), with band of ocellate punctures near to anterior margin of pronotum. Posterior margin with row of elliptical punctures ( Fig. 8View FIGURE 8 e). Margination of posterior edge with small and sparse ocellate punctures close to posterior fovea. Hypomera: posterolateral portion with setigerous and elongated punctures; punctures touching. Metasternum: disc with sparse punctures; slightly rugose-punctate; punctures larger and forming a row close to inner margin of mesocoxae. Lateral portions with ocellate and setigerous punctures separated from each other by approximately their diameter. Elytra: surface of interstriae slightly convex; punctures noticeable only at high magnification. Elytral striae punctate and deeply impressed. Legs: ventral surface of profemur with sparse and setigerous punctures on apical quarter. Anterior and posterior margins of profemur not sulcated. Posterior margin of meso and metafemur with longitudinal sulcus along its length; sulcus approximately one-ninth as wide as the femur; surface of sulcus with well-defined microsculpture (as in Fig. 11View FIGURE 11 d). Row of setae toward the body on ventral surface of mesotibia extending the entire length of the tibia (as in Fig. 11View FIGURE 11 e). Abdomen: surface of sternites with a single row of ocellate punctures; lateral portion densely punctate on anterior half. Male medial portion of sixth sternite half as long as the fifth. Pygidium: slightly wider than long. Disc smooth, ocellate punctures only near the margins. Aedeagus: parameres subtriangular, 2/3 as long as phallobase ( Fig. 8View FIGURE 8 f –h). [lateral view] — parameres narrowed toward apex ( Fig. 8View FIGURE 8 f). Dorsal margin of parameres slightly curved outward on apical third ( Fig. 8View FIGURE 8 f). Ventral margin of parameres curved inward on apical two-thirds; on basal third almost straight ( Fig. 8View FIGURE 8 f). [ventral view] — inner margins of parameres strongly curved outward ( Fig. 8View FIGURE 8 g). [dorsal view] — basal portion of parameres slightly wider than apical portion ( Fig. 8View FIGURE 8 h). External margin of parameres strongly expanded toward apex ( Fig. 8View FIGURE 8 h). Inner margin with convergent projections on apical third ( Fig. 8View FIGURE 8 h). Dorsal surface of parameres, near apex, with microtubercles noticeable only at high magnification. Endophallus: lamella copulatrix — Projection circular; superior portion curved outward; lateral portion rounded ( Fig. 10View FIGURE 10 g). Secondary sexual characters: females differ from males by more acute clypeal teeth ( Fig. 8View FIGURE 8 c); surface of clypeus with well-defined transversal ridges ( Fig. 8View FIGURE 8 c); genal surface lacking ocellate punctures. Medial portion of sixth sternite as long as the fifth.