Akamboja gen. nov., a new genus of railroad-worm beetle endemic to the Atlantic Rainforest, with five new species (Coleoptera: Phengodidae, Mastinocerinae)
Roza, André Silva
Quintino, Hingrid Yara Souza
Mermudes, José Ricardo Miras
Silveira, Luiz Felipe Lima Da
Zootaxa
2017
4306
4
501
523
Roza & Quintino & Mermudes & Silveira, 2017
Roza & Quintino & Mermudes & Silveira
2017
[151,442,547,573]
Insecta
Phengodidae
Akamboja
Animalia
Coleoptera
14
515
Arthropoda
species
monteirorum
sp. nov.
Etymology.The name is in honor to the Monteiro family, especially our dear friends, Drs. Ricardo and Margarete. Their enthusiasm and contributions to Neotropical insect ecology are noteworthy. They also helped the last author to collect specimens of three species. Genitive, plural.
Diagnosis. Male. Eyes occupying two thirds of head width, in lateral view ( Fig. 29). Apical maxillary palpomere 3.5x longer than subapical ( Fig. 29). Vertex occupying? of head in dorsal view ( Fig. 30). Elytron reaching the posterior margin of the fourth abdominal segment ( Fig. 27).
Description, male. Measurements(n=5): Total length: 4.1–4.5 mm(aver. 4.3 mm). Head length: 0.5–0.7 mm(aver. 0.6 mm). Head width: 0.6–0.7 mm(aver. 0.6 mm). Pronotum length: 0.5–0.6 mm(aver. 0.55 mm). Pronotum maximum length: 0.5–0.6 mm(aver. 0.55 mm). Elytron length: 1.5–1.6 mm(aver. 1.55 mm). Elytron maximum width: 0.4 mm(aver. 0.4 mm). Elytral spot length: 0.2–0.3 mm(aver. 0.25 mm). Morphology:Eyes occupying two thirds of head width, in lateral view ( Fig. 29). Vertex occupying? of head in dorsal view ( Fig. 30). Apical maxillary palpomere 3.5x longer than subapical ( Fig. 30). Head as wide as long ( Fig. 30). Elytron 3.5x longer than wide ( Fig. 27), reaching the posterior margin of the fourth abdominal segment, elytron apical spot occupying a fifth of the elytron ( Fig. 27). Color.Body overall light brown. Pronotum dark to light brown. Elytron almost black to light brown, apex pale yellow, sometimes light brown. Wing venation black to light brown. Immature and females.Unknown
Biology and distribution. Akamboja monteirorum sp. nov.seems to occur only during spring and summer. It inhabits high altitudinal areas of Itatiaia, on the Itatiaia massif, in the Serra da Mantiqueira mountain range, from 1280 to 1442m. It is found on the montane forest.
Remarks.This species resembles Akamboja minimum sp. nov., but can be distinguished by its bigger size, elytron (the elytron of Akamboja minimum sp. nov.reaches the anterior margin of the second abdominal segment, while in Akamboja monteirorum sp. nov.it reaches the posterior margin of the third), smaller vertex (bigger in Akamboja minimum sp. nov.)and its high altitude occurrence (low altitude occurrence in Akamboja minimun sp. nov.). Akamboja monteirorum sp. nov.occurs only in montane forest (from 830 mto 1442 m), while Akamboja minimum sp. nov.occurs in lower montane forest (below 800 m) and partially in the montane forest (beginning in 600 m).
Typematerial. Holotype(male): BRAZIL. Rio de Janeiro. Itatiaia. Parque Nacional de Itatiaia. PENSA RIOPt. 3, 22°25’42.6’’ S, 44°37’42,2’’ W, 1442 m, 1 male, 12.X.2013, R. Monteirocol. ( DZRJ). Paratypes(all male): BRAZIL. Rio de Janeiro. Itatiaia. Parque Nacional de Itatiaia. PENSA RIOPt. 2, 22° 25’ 59,6” S, 44° 37’ 39,7” W, 1280 m, 1 male, 12. II.2015, R. Monteirocol. ( DZRJ); PENSA RIOPt. 3, 22°25’42.6’’ S, 44°37’42,2’’ W, 1442 m, 1 male, 7.I.2015, R. Monteirocol. ( DZRJ); Parque Nacional de Itatiaia. Setor Lago Azul, Mata, Ponto M3B, 22°27’01.10’’S, 44°36’55.30’’W, 830m, 2 males, 04.XII.2015– 06.I.2016( MNRJ). Serra Negra, 2 males, 17.VII.2012, Mermudescol ( MZSP).
1586208318
PENSA, RIO
Brazil
Rio de Janeiro. Itatiaia. Parque Nacional de Itatiaia.
RIO Pt
14
515
2
Rio de Janeiro
holotype
1586208322
2013-10-12
DZRJ
R. Monteiro
Brazil
1442
-22.4285
Rio de Janeiro. Itatiaia. Parque Nacional de Itatiaia
1
-44.628387
14
515
1
1
Rio de Janeiro
paratype
1586208311
[869,1049,1771,1795]
PENSA, RIO
Brazil
RIO Pt
14
515
1
Rio de Janeiro
paratype
1586208314
2015-02-12
DZRJ, PENSA, RIO
R. Monteiro
Brazil
1280
-22.433222
RIO Pt
1
-44.627693
14
515
1
1
Rio de Janeiro
paratype
1586208306
2015-01-07
DZRJ
R. Monteiro
Brazil
1442
-22.4285
Parque Nacional de Itatiaia
1
-44.628387
14
515
1
1
Rio de Janeiro
paratype
1586208312
2012-07-17
2016-01-06
2012-07-17
MNRJ, MZSP
Ponto M & Mermudes
Brazil
830
-22.450306
Serra Negra
1
-44.61536
14
515
4
4
Rio de Janeiro
paratype