Eudyasmus planidorsis Heller, 1908a: 19

Setliff, Gregory, Pancini, Lorenzo & Bramanti, Andrea, 2021, Review of Eudyasmus, with descriptions of a new species from Waigeo Island, Indonesia, and a closely related new genus (Coleoptera: Curculionidae, Molytinae, Eudyasmini), Fragmenta entomologica 53 (2), pp. 377-390 : 387-388

Eudyasmus planidorsis Heller, 1908a: 19

( Figs 11 , 12c , 13b )

Lectotype. Papua New Guinea: 1♀, Typus (on red card) // Br. N. Guinea / Aroa Fl. / E.Weiske // 14539 // LECTOTYPE Eudyasmus planidorsis Heller (handwritten on yellow card) ( SMTD). New Lectotype Designation.

Diagnosis. TL 9.0–12.0 mm, EW 3.6–4.8 mm. The sparsely distributed miniscule, appressed, incrusting, translucent, yellowish brown scales some of which are iridescent green under high magnification on the pronotal and elytral disks, interspersed with semierect, hair-like, whitish scales, absence of large whitish macula or vittae, and the long hair-like scales on the tibia of all legs (especially dense through the middle) will separate this species from other similar species. The green iridescence can be difficult to see in some worn specimens (such as the type series) and are not visible except under high magnification. While this species lacks the large whitish macula or vittae commonly found in Eudyasmus species, there are several small whitish maculae that may escape the casual observer. There is a pair of small triangular maculae composed of whitish scales on the anterolateral region of the pronotum, anterior to the procoxae, ventral to the postocular lobes, and adjacent to the prosternal canal. There is a pair of very thin transverse rows of white to tan scales on the basal margin of the pronotum, dorsolaterally. There is also a triangular white macula on the side of each elytron at the indentation where the puncture of rows 9 and 10 start to coalesce in the basal 1/3 of elytra. See the generic description, diagnosis, and Table 1 to further diagnose this species.

Distribution. PAPUA NEW GUINEA: Central and Morobe Provinces ( Fig. 1 ).

Natural History. Two specimens of this species were taken on logs of Castanopisis sp. (possibly Castanopsis acuminatissima (Blume) A.DC. ( Fagaceae )).

Figures

Fig. 11 – Protrachyasmus planidorsis (Heller, 1908) comb. nov.; a, Lectotype female, dorsal view; b, same, lateral view; c, same, labels.

Fig. 12 – Prothoracic leg details; a, Eudyasmus albertisii Pascoe, 1885, female (PM = premucro, U = uncus, SUP = supra-uncal projection); b, same, male; c, Protrachyasmus planidorsis (Heller, 1908) comb. nov., male.

Fig. 13 – Detail of pro- and mesothorax, ventral view (PSC = prosternal canal, MVR = mesoventral receptacle) – a, Eudyasmus albertisii Pascoe, male; b, Protrachyasmus planidorsis (Heller, 1908) comb. nov., male.

Fig. 1 – Distribution of the species of Eudyasmus Pascoe, 1885 and Protrachyasmus Setliff gen. nov. Filled in symbols = type locality. Base map from MapCreator 3.0.