Macromalthinus belemensis Brancucci 1981

Macromalthinus belemensis Brancucci, 1981 (Fig. 49)

Macromalthinus belemensis Brancucci, 1981a: 262.

Material examined: HOLOTYPE ♂: [BRAZIL] Pará, Belém (Mocambo), 01.IV.1977, AY Harada (MPEG 15010786) (MPEG) (Fig. 49).

PARATYPES. BRAZIL. Pará: Belém (Mocambo), 05.III.1977, MF Torres (1 ♂ NHMB); idem, 01.IV.1977, AY Harada (1 ♀ NHMB); Utinga, 25.IV.1961, J. & B. Bechyné (1 ♀ MPEG); Santarém, ‘53./60’ [‘Brazil, Santarém, Bates, purchased from Stevens’; information from BMNH accessions registry] (1 ♂ BMNH);‘ Para’ (1 ♂ MNHN); [Amazonas] ‘ Ega’ [Tefé] (1 ♂ MNHN). Amapá: Serra Lombard (Limão), 23.III.1961, J. & B. Bechyné (1 ♀ MPEG).

Other specimens: BRAZIL. Pará: Belém (Mocambo), 17.I.1980, M.F. Torres (1 ♀ MPEG); MelgaÇo, Caxiuanã – ECFPn, 01.V.1999, Percurso 2, malaise, O. Silveira & J. Dias (1 ♀ MPEG); MelgaÇo (Caxiuanã), 01°44’15”S, 51°27’17”W, 22.III.2006, malaise 8, J.O. Dias col. (1 ♀ MZSP). Amapá: Serra Lombard (Limão), 03.IX.1961, J. & B. Bechyné (1 ♀ MPEG). Mato Grosso: (gallery forest), 12°50’S, 51°45’W, 10-28.III.1968, B.E. Freeman, Roy. Soc. – Roy. Geog. Soc. Xavantina-Cachimbo Exped. 1967-1969 (1 ♂, 1 ♀ BMNH 1973-292); idem, 12°50’S, 51°47’W, 26.X.1968, O.W. Richards (1 ♂ BMNH 1968-260); idem, 05.X.1968, O.W. Richards (1 ♂ BMNH 1968-260); idem, 13.III.1968, O.W. Richards (on Cecropia) (1 ♀ BMNH 1968-260); idem, 25.III.1968, O.W. Richards (1 ♀ BMNH 1968-260); idem, (Campo) 27.IX.1968, O.W. Richards (1 ♀ BMNH 1968-260).

Differential diagnosis: Head black; antennae brown, except antennomeres I-III and VIII-IX, pale yellow; pronotum testaceous with a wide median brown patch; elytra entirely dark brown;males:fore femur swollen,compressed ventrally, without distinct tooth; aedeagus with right prolongation of tegmen broadly projected dorsally; left setiferous prolongation long and slender;right paramere absent; left paramere wider apically; females:ventrite VII short and wide,lateral margins arched, distal margin concave.

Males of M. belemensis differ from the other Amazonian species by the fore femur swollen but without a distinct ventral tooth.

Distribution: Brazil (Amapá, Pará, Amazonas and Mato Grosso states). Macromalthinus belemensis is recorded for the first time in Mato Grosso state (Fig. 66).

Locality description: According to their labels data, the specimens from Mato Grosso state were collected by the Royal Society & Royal Geographical Society expedition from 1967-1979 in forest galleries and grasslands.