Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 97. (Budapest 2005)

Kirejsthuk, A. G.: On the fauna of Nitidulidae (Insecta, Coleoptera) from Taiwan with some taxonomical notes

1.3 mm. Moderately convex dorsally and slightly ventrally; dorsum, meso- and metasterna chestnut brownish, but the remainder of underside and appendages reddish to reddish brown (although antennái club dark brown); dorsum with a faint shine, and underside moderately shining; body with moderately conspicuous fine golden hairs, about 3-4 times as long as distance between their insertions and dorsum also with sparser and longer hairs, forming on elytra longitudinal rows; pronotal and elytral sides with dense cilia, consisting of hairs slightly longer than tarsal claws; paramedial brushes of long hairs situated just before the middle (these hairs about as long as hairs in cilia (Figs 72-73). Head, pronotum and elytra with distinct punctures, about as large as eye facets, interspaces between them somewhat broader than a puncture diameter (on pronotum and elytra till twice broader), densely and cellularly microreticulated. Prosternum with obsolete puncturation and smoothed sculpture, but its process with distinct very small punctures, interspaces between them much broader than a puncture diameter and smooth. Metasternum with distinct and dense punctures, somewhat larger than eye facets, interspaces between them less than a puncture diameter and rather smoothly microreticulated. Ventrites very finely and very densely microgranulose. Anterior edge of labral lobes subsemicircular; exposed part of labral lobes somewhat less than third of combined width of their base. Antennái club (Fig. 74) comprising about 2/7 of total antennái length, nearly 1 and 1/3 as long as wide, antennomere 3 slightly longer than antennomere 2 and significantly longer than antennomere 4. Pronotum with posterior edge at posterior angles forming a more or less regular arc. Elytra about 11/12 as long as broad combined. Pygidium subtruncate at apex. Mentum subquadrangular, about 3 times as wide as long. Prosternum sharply carinate, but its process (Fig. 75) flattened and rather widened at widely rounded posterior edge. Median plate of mesosternum almost 2.5 times as wide as long, its posterior edge subrectilinear. Metasternum slightly and widely depressed in the middle.Hypopygidium rather deeply emarginate before median movable lobe and with narrow median process (Fig. 77) bearing a dense brush of moderately short hairs just at base of movable lobe. Apex of last abdominal segment: Fig. 76. Ventral plate and spiculum gastrale: Fig 78. Tegmen moderately sclerotized (Figs 79-81). Female - Differs from the male in widely rounded apices of pygidium and hypopygidium as well as in absence of paramedial brushes of long hairs on elytra and subflattened middle of metasternum. Variability - Length 4.8-5.3, width 2.6-2.8 1.3 mm. Some variability is apparent in the coloration, density of punctures and sculpture on interspaces on dorsal sclerites. The specimen most different from the holotype is the female labelled as "W. Almora, Kumaon, India, H.G.C.", which has markedly sparser puncturation and rather smooth intervals on dorsal sclerites. Nevertheless, the latter is included in the type series because of the clearly and regularly arcuate posterior angles of pronotum. Diagnosis - This new species has a combination of the distinguishing characters which is used in the key below. It, as the previous one, was mixed by many previous researchers with A. discolor ERICHSON, 1843, although it differs from the latter in the shorter and more robust body, denser puncturation and more conspicuous pubescence, longer cilia along sides of the pronotum and elytra, wider median plate of the mesosternum, shape of sclerites of the last abdominal segment in males and shape of tegmen. Etymology - The epithet for this new species means "mountain", "mountainous", "hilly".