Taxonomic revision of the Dichotomius sericeus (Harold, 1867) species group (Coleoptera: Scarabaeidae: Scarabaeinae)
Valois, Marcely C.
Vaz-De-Mello, Fernando Z.
Silva, Fernando A. B.
Zootaxa
2017
4277
4
503
530
35NC2
Valois & Vaz-De-Mello & Silva, 2017
Valois & Vaz-De-Mello & Silva
2017
[151,668,1509,1535]
Insecta
Scarabaeidae
Dichotomius
Animalia
Coleoptera
19
522
Arthropoda
species
iannuzziae
sp. nov.
Luederwaldtinia
Etymology.Named after Prof. Luciana Iannuzzi as gratitude for many years of our fruitful collaboration.
Materialexamined. Typematerial, 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 malesand 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, Tauáfragment, 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); same data but 06. VII.2012, F. Silva — 2♂ 2♀(MZUFPA); same data but 05. VII.2012, F. Silva — 3♂ 4♀(MZUFPA); 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). BAHIA: Eunápolis, [-39,068674; -16,47638], XI.1996, J.N.C. Louzada — 4♂ 3♀( CEMT); Igrapiuna, Vila5, ( 39°10'03"W; 13°48'08"S), X.2010, R. Carvalho— 3♀( CEMT); same data but Pancada Grande, ( 13°48'08"S; 39°10'3"W), 19.V.2010— 5♂( CEMT); 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); same data but vila 5, ( 38°12,27333'W; 13°48,52833'S), XII.2008, E. M. Campus& P. P. Lopes — 1♂( CEMT). 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); same data but V.2012, ( 39°08'58.1"W; 16°22'25.8"S) — 2♂ 2♀( CEMT); same data but II.2006, F. Z. Vaz-de-Mello — 1♂ 1♀( CEMT); same data but V.2012, Audino et al.— 1♂ 2♀( CEMT); same data but ( 16°22'25.8"S, 39°08'58.1"W) — 3♂ 4♀( CEMT); same data but ( 16°21'11.2"S, 39°08'09.7"W)— 2♂( CEMT); 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); same data but XI.1991, E. Grossi — 1♀.
Diagnosis. Dichotomius iannuzziae sp. nov.is similar to D. laevicollisin having the disc of the pronotum with sparse and simple punctures, visible at high magnification ( Figs 4d, 8d) and the lateral margin of the pronotum with a row of ocellate punctures on the anterior half (as in Fig. 4e). However, it can be distinguished by: the posterior portion of pronotum, with a row of elliptical ocellate punctures ( Fig. 8e); the surface of the gena, with ocellate punctures on the posterior portion ( Fig. 8b); the length, 14–16 mm.
Description. Length: 14–16 mm. Body black and shiny, with purplish sheen ( Fig. 8a). Head:clypeal surface with transversal ridges, absent on central portion ( Fig. 8b). Clypeofrontal suture with a central and conical horn; and two weak knobs on the interocular portion of the head, close to the eye ( Fig. 8b). Interocular surface slightly depressed on its central portion, with dense ocellate punctures separated from each other by less than their diameter ( Fig. 8b). Pronotum:slightly convex in lateral view.Disc smooth ( Fig. 8d), with band of ocellate punctures near to anterior margin of pronotum. Posterior margin with row of elliptical punctures ( Fig. 8e). 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. 11d). Row of setae toward the body on ventral surface of mesotibia extending the entire length of the tibia (as in Fig. 11e). 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. 8f–h). [lateral view] —parameres narrowed toward apex ( Fig. 8f). Dorsal margin of parameres slightly curved outward on apical third ( Fig. 8f). Ventral margin of parameres curved inward on apical two-thirds; on basal third almost straight ( Fig. 8f). [ventral view] —inner margins of parameres strongly curved outward ( Fig. 8g). [dorsal view] —basal portion of parameres slightly wider than apical portion ( Fig. 8h). External margin of parameres strongly expanded toward apex ( Fig. 8h). Inner margin with convergent projections on apical third ( Fig. 8h). 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. 10g). Secondary sexual characters:females differ from males by more acute clypeal teeth ( Fig. 8c); surface of clypeus with well-defined transversal ridges ( Fig. 8c); genal surface lacking ocellate punctures. Medial portion of sixth sternite as long as the fifth.
1572402819
1990-01-02
1990-01-06
1990-01-02
CEMT
E. & P. Grossi
Brazil
Material
Reserva Ecologica do Pau Brasil
Porto Seguro
19
522
1
1
BAHIA
holotype
1572402831
2008-02
CEMT
B. K. C. Figueiras
Brazil
Cachoeira
Ibateguara
19
522
364
185
179
ALAGOAS
paratype
1572402823
2008-01-17
CEMT
B. K. C. Figueiras
Brazil
Capoeirao
Ibateguara
19
522
1
1
ALAGOAS
paratype
1572402862
[582,1257,1759,1784]
2008-01-16
CEMT
B. K. C. Figueiras
Brazil
Encanamento
Ibateguara
19
522
2
1
1
ALAGOAS
paratype
1572402848
2008-01-16
CEMT
Coimbra, IX
Brazil
Encanamento
Ibateguara
19
522
2
2
ALAGOAS
paratype
1572402864
2003-11
2007-09-19
2003-11
CEMT
Cabo & Reserva Ecologica de Gurjau & S. Santos
Brazil
Varjao
Ibateguara
19
522
3
1
2
PERNAMBUCO
paratype
1572402834
[971,1432,1831,1856]
2003-06-01
2007-09-19
2003-11
CEMT
Cabo & Reserva Ecologica de Gurjau & S. Santos
Brazil
Varjao
Ibateguara
19
522
1
1
PERNAMBUCO
paratype
1572402835
[151,1175,1868,1893]
2010-12
CEMT
R. P. Salomao
Brazil
Sirinhaem
Taua
Usina Trapiche
19
522
6
3
3
PERNAMBUCO
paratype
1572402855
2008-05-03
2010-07-26
2008-05-03
CEMT
Pitfall & F. Silva
Brazil
Sirinhaem
-8.15
Fezes
1302
-36.016666
Usina Trapiche
19
522
6
2
4
PERNAMBUCO
paratype
1572402844
[468,1116,1940,1965]
2012-07-06
2010-07-26
2008-05-03
CEMT
F. Silva
Brazil
Sirinhaem
-8.15
Fezes
1302
-36.016666
Usina Trapiche
19
522
4
2
2
PERNAMBUCO
paratype
1572402857
2012-07-05
2010-07-26
2008-05-03
CEMT
F. Silva
Brazil
Sirinhaem
-8.15
Fezes
1302
-36.016666
Usina Trapiche
19
522
7
4
3
PERNAMBUCO
paratype
1572402851
2011-06-02
2016-05-30
2011-06-02
CERPE
Brejo de Altitude, F. & Camaragibe & Aldeia
Brazil
Sirinhaem
100
-7.977
Fezes
77
-35.006
Usina Trapiche
19
522
80
57
23
PERNAMBUCO
paratype
1572402850
1996-11
CEMT
J. N. C. Louzada
Brazil
21
524
Eunapolis
19
522
7
3
4
BAHIA
paratype
1572402847
2010-10
CEMT
Brazil
-13.802222
Vila
21
-39.1675
Igrapiuna
21
524
3
3
BAHIA
paratype
1572402826
2010-05-19
CEMT
Brazil
-13.802222
Pancada Grande
21
-39.1675
Igrapiuna
21
524
5
5
BAHIA
paratype
1572402840
[602,1431,223,248]
2000-05
CEMT
V. A. Melo
Brazil
Ilheus
21
524
3
2
1
BAHIA
paratype
1572402854
[151,968,260,285]
1995-02
CEMT
V. A. Melo
Brazil
Fazenda Dichma
21
524
5
2
3
BAHIA
paratype
1572402852
1995-02-21
CEMT
C. Sperber
Brazil
Fazenda Dichma
21
524
42
13
29
BAHIA
paratype
1572402863
2008-12-11
CEMT
Campos, E. M.
Brazil
-13.819139
Itubera
1
-39.201694
21
524
1
1
BAHIA
paratype
1572402845
2008-12
CEMT
E. M. Campus & P. P. Lopes
Brazil
-13.808805
Itubera
1
-38.204556
21
524
1
1
BAHIA
paratype
1572402865
[269,869,367,392]
1993-07
CEMT
E. Grossi
Brazil
Porto Seguro
21
524
4
4
BAHIA
paratype
1572402858
1990-01
CEMT
E. & P. Grossi
Brazil
Brasil
21
524
5
2
3
paratype
1572402860
2004-11
RPPN, CEMT
J. N. C. Louzada
Brazil
-16.379555
Veracel
1
-39.172333
21
524
113
65
48
paratype
1572402853
2012-05
CEMT
J. N. C. Louzada
Brazil
-16.373833
Veracel
1
-39.149475
21
524
4
2
2
paratype
1572402822
[546,1260,476,501]
2006-02
CEMT
F. Z. Vaz-de-Mello
Brazil
-16.373833
Veracel
1
-39.149475
21
524
2
1
1
paratype
1572402867
2012-05
CEMT
Audino
Brazil
-16.373833
Veracel
1
-39.149475
21
524
3
2
1
paratype
1572402859
[627,1365,511,536]
2012-05
CEMT
Audino
Brazil
-16.373833
Veracel
1
-39.149475
21
524
7
4
3
paratype
1572402870
2012-05
CEMT
Audino
Brazil
-16.353111
Veracel
1
-39.13603
21
524
2
2
paratype
1572402846
2009-04
CEMT
A. F Brito
Brazil
Serra da Jiboia
Santa Terezinha
21
524
18
5
13
paratype
1572402866
[363,1257,583,608]
2009-04
CEMT
A. F. Brito & E. M. Silva & E. Menezes
Brazil
Serra da Jiboia
Santa Terezinha
21
524
9
4
5
paratype
1572402871
2005-08
CEMT
Rebio de Una
Brazil
Rebio de Una
Una
21
524
3
2
1
paratype
1572402869
1984-12-01
1984-12-15
1984-12-01
CEMT
W. Guimaraes & Pitfall, C. M. P. & E. & P. Grossi
Brazil
146
-13.689167
Ipatinga
21
-39.364445
Floresta
21
524
6
2
4
MINAS GERAIS
paratype
1572402868
[534,986,692,717]
1991-11
1984-12-15
1984-12-01
CEMT
E. Grossi
Brazil
146
-13.689167
Ipatinga
21
-39.364445
Floresta
21
524
1
1
MINAS GERAIS
paratype