Xalpirta mauryi, Pecci-Maddalena & Lopes-Andrade & Skelley, 2019

Pecci-Maddalena, Italo Salvatore De Castro, Lopes-Andrade, Cristiano & Skelley, Paul, 2019, Xalpirta mauryi sp. nov. (Coleoptera: Erotylidae: Tritomini) from Southeast Brazil, Zootaxa 4629 (3), pp. 342-350: 343-348

publication ID

https://doi.org/10.11646/zootaxa.4629.3.2

publication LSID

lsid:zoobank.org:pub:E869A28F-0A56-4E35-9E42-4A700C137F15

persistent identifier

http://treatment.plazi.org/id/03B2879C-2512-FFAA-8284-FA80FB17EC47

treatment provided by

Plazi

scientific name

Xalpirta mauryi
status

sp. nov.

Xalpirta mauryi   sp. nov.

Figs. 1–25 View FIGURES 1–10 View FIGURES 11–13 View FIGURES 14–23 View FIGURES 24–32 , 33 View FIGURE 33

Type locality. Parque Nacional do Itatiaia , 1200 m, in the state of Rio de Janeiro, Southeast Brazil ( Figs. 4 View FIGURES 1–10 and 33 View FIGURE 33 ). Estimated coordinates: 22° 29’ 45’’ S, 44° 33’ 46’’ W GoogleMaps   .

Etymology. The new species is named in honor of Prof. Maury Pinto de Oliveira (1914–2004). He was a major Brazilian malacologist of the last century, building a large collection of mollusks and shells from Brazil and the world. His collection is housed in the Museum of Malacology “Prof. Maury Pinto de Oliveira” at the “Universidade Federal de Juiz de Fora (UFJF)”, Southeast Brazil. In 2002, Professor Maury (88 years old) first introduced the senior author (then 12 years old) to the study of Coleoptera   . Interestingly, beetles were the first interest of Prof. Maury, who lost that focus when his entomological collection was seriously damaged due to the use of non-entomological pins. Nevertheless, throughout his life he built an important library, including many books on Coleoptera   , entomology, and natural history.

Diagnosis. Xalpirta mauryi   differs from other described Xalpirta   in the uniformly green dorsal coloration, with a metallic sheen, and pronotum without spots or black marks ( Fig. 1 View FIGURES 1–10 ). The pore on the posterior 1/3 of each pronotal edge is apparently absent in X. mauryi   ( Figs. 24–25 View FIGURES 24–32 ; compared to that of X. maderi   in Fig. 28 View FIGURES 24–32 , with small arrow showing the corresponding glandular duct).

Description. Length (in mm) = 2.48–3.6 (3.14 ± 0.44, n = 5). Body elongate ( Figs. 1–3 View FIGURES 1–10 ), parallel-sided, TL/EW = 2.01–2.16 (2.11 ± 0.05), GD/EW = 0.67–0.75 (0.72 ± 0.03), glabrous and glossy, dorsal coloration homogeneous- ly green, with green metallic sheen. Ventral coloration as dorsal, except for abdominal ventrites, legs, maxillary and labial palps, and antennomeres 1–8 yellowish-brown, and antennomeres 9–11 reddish-brown.

Head. Glabrous; punctation coarse ( Fig. 7 View FIGURES 1–10 ), somewhat dense compared to other Tritomini   (for instance, Mycotretus   ); ocular striae fine, nearly reaching lateral angle of epistome; frontoclypeal suture present, short and interrupted at middle ( Fig. 7 View FIGURES 1–10 , white arrow). Clypeus arcuately emarginate ( Fig. 7 View FIGURES 1–10 ). Left antenna measured in one individual: FL 0.6 mm, CL 0.37 mm, CL/FL 0.61; length of antennomeres 1–11 (in mm): 0.16, 0.09, 0.17, 0.11, 0.10, 0.07, 0.07, 0.06, 0.10, 0.09, 0.14; antennal club loose, 3-segmented, abrupt. Eyes glabrous (GW 0.26 mm), finely granulate. Mouthparts ( Figs. 5–10 View FIGURES 1–10 ) with free, sclerotized, pubescent labrum, slightly emarginate at middle and with two very thin tufts of slender bristles on each side ( Fig. 7 View FIGURES 1–10 , black arrow). Mandibles short and broad; apex with two teeth ( Fig. 7 View FIGURES 1–10 , m, Fig. 8 View FIGURES 1–10 ); mandibular base emarginate; mola well-developed, naked and distinctly transversely costate; prostheca distal to mola, soft with additional tuft of setae ( Fig. 8 View FIGURES 1–10 , arrow). Maxillae ( Fig. 9 View FIGURES 1–10 ) with cardo subtrian- gular and stipes elongate; galea shorter but wider than lacinia, somewhat widened towards densely pubescent apex; lacinia much longer and narrower than galea, densely pubescent at apex, with highly sclerotized but barely visible hook; four maxillary palpomeres on each palp, palpomere 1 almost as long as palpomeres 2–3 combined; apical palpomere semicircular, approximately 3× wider than long, pubescent ( Fig. 10 View FIGURES 1–10 , arrow) but lacking distinct terminal brush (present in Triplax   , Fig. 30 View FIGURES 24–32 , arrow). Three labial palpomeres on each palp, palpomere 3 club-shaped (asymmetrical). Mentum ( Figs. 5–6 View FIGURES 1–10 , arrow) an elongate, delineated plate, pentagonal with angulate contours, strongly sclerotized and bearing setae at middle.

Thorax. Pronotum transverse, parallel-sided, weakly converging anteriorly; PL/PW = 0.55–0.62 (0.58 ± 0.02); shiny, punctation coarse, with coarse and fine punctation ( Fig. 11 View FIGURES 11–13 , black arrows); coarse punctures separated by distance of about 0.77–2.58 puncture-widths at disc, each puncture bearing one short, minute seta (barely visible even at a magnification of 150×); lateral edge with one glandular pore on the anterior angle and one on the posterior angle ( Fig. 24 View FIGURES 24–32 , arrows, Fig. 25 View FIGURES 24–32 , arrows showing glandular ducts), weakly angulate around pores ( Figs. 24–25 View FIGURES 24–32 ) as in X. maderi   ( Figs. 27–28 View FIGURES 24–32 ); pore at posterior 1/3 of lateral edges apparently absent ( Figs. 24–25 View FIGURES 24–32 ) (present in X. maderi   , Fig. 28 View FIGURES 24–32 , arrow). Scutellar shield (BW 0.25 mm) subpentagonal, glabrous, bearing few punctures. Elytra with strong anterior marginal bead; EL/EW = 1.49–1.64 (1.58 ± 0.06), EL/PL = 2.82–3.2 (2.97 ± 0.18); coarsely punctate ( Fig. 11 View FIGURES 11–13 , white arrow); striae with rows of coarse punctures, intervals with fine punctures ( Fig. 12 View FIGURES 11–13 ); coarse punctures separated by about 1.25× puncture-widths. Hind wings developed, apparently functional. Prosternum lacking keel (present in Mycotretus   ), convex and coarsely punctate; anterior edge pubescent; notosternal sutures conspicuous and entire; procoxal cavities subcircular; prosternal process abruptly expanded apically, shallowly emarginate at apex; procoxal lines not extending in front of procoxae. Mesoventrite small, coarsely punctate; mesocoxal lines barely discernible; posterior edge slightly emarginate; mesocoxal cavities suboval. Metaventrite convex, glabrous, coarsely punctate; anterior edge sinuate, strongly margined medially; metacoxal lines apparently absent; discrimen approximately 0.6× as long as metaventrite. Metendosternite ( Fig. 13 View FIGURES 11–13 ) well-developed, sclerotized, similar to that of other examined Tritomini   (e.g. Mycotretus   , Triplax   , Tritomapara Alvarenga   ); laminae present, plate-like; anterior tendons thin, moderately separated. Procoxae suboval, mesocoxae almost globular and metacoxae transverse, cylindrical. Femora elongate, smooth, without spines or other outgrowths. Tibiae long, somewhat widened apically; apex with fringe of wide flat spinules. Tarsi densely pubescent beneath.

Abdomen. Elongate; punctation coarse; interspaces of punctures granulate; vestiture of sparse, slender setae. Coxal lines feeble. Length of ventrites 1–5 (in mm, from base to apex of each ventrite at the longitudinal midline): 0.39, 0.25, 0.23, 0.23, 0.32. Male terminalia ( Figs. 14–22 View FIGURES 14–23 ). Penis ( Fig. 14 View FIGURES 14–23 , pen) slightly elongate and curved; basal portion with short sclerotized projection linked to apophyses; internal sac with well-developed and slightly elongate flagellum ( Fig. 14 View FIGURES 14–23 , fla) that is 1.18× as long as penis, slightly sinuous, with membranous portion between virga and head of flagellum ( Fig. 15 View FIGURES 14–23 , mp); head of flagellum ( Fig. 15 View FIGURES 14–23 , head) sclerotized, short, with two small lobes (resembling those of Xalpirta maderi   ). Apophyses ( Fig. 14 View FIGURES 14–23 , apo) 1.61× as long as penis. Tegmen sclerotized ( Fig. 16 View FIGURES 14–23 ); parameres reduced and sclerotized, with densely pubescent outgrowths, slightly dilated ( Fig. 16 View FIGURES 14–23 , arrows). Tergite VIII ( Figs. 17–18 View FIGURES 14–23 , TVIII) sclerotized, with sparsely distributed bristles. Sternite VIII ( Figs. 17–18 View FIGURES 14–23 , SVIII) slightly sclerotized. Sclerite at posterior edge of tergite IX ( Figs. 19–20 View FIGURES 14–23 , arrow, Fig. 21 View FIGURES 14–23 ) sclerotized, narrowed and with bristles. Laterotergite IX ( Figs. 17–20 View FIGURES 14–23 , LTIX) sclerotized, posteriorly elongate and pubescent; outer contours angulate; anteroventral edge with paired and subparallel lateral struts, connected at their anterior tips by small transverse, slightly sclerotized sclerite ( Figs. 17–18 View FIGURES 14–23 , arrow). Posterior edge of sternite IX sclerotized; outer contour rounded ( Figs. 17–20 View FIGURES 14–23 , SIX); anteriorly membranous. Tergite X ( Figs. 17–20 View FIGURES 14–23 , TX, Fig. 22 View FIGURES 14–23 ) sclerotized; posterior edge with sparsely distributed bristles. Female terminalia. Genitalia ( Fig. 23 View FIGURES 14–23 ) with gonostyli and gonocoxites strongly sclerotized; baculi of paraprocts sclerotized and slightly arcuate; spermatheca oval and sclerotized. Tergite VIII sclerotized, with sparsely distributed bristles. Sternite VIII with conspicuous median strut.

Type material. Xalpirta mauryi   holotype ( DZUP), ( Figs. 1–5 View FIGURES 1–10 ) “ Coleção M. Alvarenga [printed] \ P. N. ITA- TIAIA 1200 m, E. Rio Janeiro Brasil [printed], 17. VII. 1962 [handwritten], H. Schubart [printed] \ DZUP 125338 View Materials [printed] \ HOLOTYPUS Xalpirta mauryi Pecci-Maddalena, Lopes-Andrade & Skelley   [printed, red paper]”. Paratypes   : 1 male ( DZUP, dissected) “Coleção M. Alvarenga [printed] \ P. N. ITATIAIA 1200 m, E. Rio Janeiro Brasil [printed], 17. VII. 1962 [handwritten], H. Schubart [printed] \ DZUP 125337 View Materials [printed] \ PARATYPUS Xalpirta mauryi Pecci-Maddalena, Lopes-Andrade & Skelley   [printed, yellow paper]”   ; 1 female ( DZUP, dissected) “Coleção M. Alvarenga [printed] \ Campos do Jordão, S. Paulo Brasil, I–1969, W. Bokermann [printed] \ DZUP 125339 View Materials [printed] \ PARATYPUS Xalpirta mauryi Pecci-Maddalena, Lopes-Andrade & Skelley   [printed, yellow paper]”   ; 1 female ( DZUP, dissected) “Coleção M. Alvarenga [printed] \ Campos do Jordão , S. Paulo Brasil, V, II [handwritten]-1957 [printed], K. Lenko leg. [printed] \ 2064-C [handwritten] \ Haematoch. 006 [handwritten] \ DZUP 125343 View Materials [printed] \ PARATYPUS Xalpirta mauryi Pecci-Maddalena, Lopes-Andrade & Skelley   [printed, yellow paper]”   ; 1 specimen sex undetermined ( DZUP) “Coleção M. Alvarenga [printed] \ Campos do Jordão , S. Paulo Brasil, V, II [handwritten]-1957 [printed], K. Lenko leg. [printed] \ DZUP 125340 View Materials [printed] \ PARATYPUS Xalpirta mauryi Pecci-Maddalena, Lopes-Andrade & Skelley   [printed, yellow paper]”   ; 1 female ( DZUP, dissected) “Coleção M. Alvarenga [printed] \ Campos do Jordão , S. Paulo Brasil, V, II [handwritten]-1957 [printed], K. Lenko leg. [printed] \ 2064-B [handwritten] \ Haematoch. 006 [handwritten] \ DZUP 125344 View Materials [printed] \ PARATYPUS Xalpirta mauryi Pecci-Maddalena, Lopes-Andrade & Skelley   [printed, yellow paper]”   .

Other materials examined. For Xalpirta maderi   : 1 male ( DZUP, dissected) “IX [handwritten] 195[printed]7[handwritten], Brasilien, Nova Teutonia, 27º 11’B. 52º23ºL, Fritz Plaumann, 300–500 m [printed] \ DZUP 135130 [printed]” \ Xalpirta maderi (Delkeskamp, 1957)   det. Pecci-Maddalena, I.S.C. 2019”; 1 specimen ( DZUP) “Coleção M. Alvarenga [printed] \ Teodoro Sampaio, S. Paulo Brasil [printed], VIII. 1973 [handwritten], F.M. Oliveira [print- ed] \ DZUP 125688 [printed]” \ Xalpirta maderi (Delkeskamp, 1957) det. Pecci-Maddalena, I.S.C. 2019” [new geographical record].

For Tritomapara brasiliensis (Guérin): 1 male (CELC, dissected) “Brasil: MG, Juiz de Fora “Campus UFJF; Entre FAEFID e ICB, ciclovia e caminhada”; 07.xii.2014, leg. Pecci-Maddalena, Í.S.C. & Maddalena [printed]” \ Tritomapara brasiliensis Guérin, 1946 det. Pecci-Maddalena, I.S.C. 2019”.

For Triplax russica Herbst: 1 male (MNRJ, dissected) “Coleção M. Alvarenga [printed] \ Tisvilde [?] 23.5.1948 [handwritten] \ A. Sørensen, Nat. Mus. Aarh [printed]”.

For Mycotretus ornatus (Duponchel): 1 male (MNRJ, dissected) “Coleção M. Alvarenga [printed] \ Brasil Rio de Janeiro, D.F. Corcovado [printed] 21.XI. 1957 [handwritten] Alvarenga e Seabra [printed] \ 2310 [printed] \ M. ornatus [handwritten]”.

Distribution. Xalpirta mauryi is known from the type locality, Parque Nacional do Itatiaia (state of Rio de Janeiro, Southeast Brazil), and Campos do Jordão (state of São Paulo, Southeast Brazil) ( Fig. 33 View FIGURE 33 ).

DZUP

Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure