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

claws; paramedial brushes of long hairs situated at anterior 1/3 (these hairs about 1.5 times as long as hairs in cilia) (Fig. 91). Head and pronotum with distinct punctures, about as large as eye facets, interspaces between them a little narrower than a puncture diameter, very finely and smoothly cellularly microreticulated. Elytra with distinct punctures, markedly smaller than eye facets, interspaces between them somewhat broader than a puncture diameter, very densely and very finely cellularly microreticulated (on subsutural places in anterior part of elytra puncturation becoming shallower and less distinct). Prosternum with obsolete puncturation and microgranulose to subalutaceous, but its process with distinct and dense, very small punctures, interspaces between them narrower than a puncture diameter and smooth. Metasternum with distinct and moderately dense punctures, almost as large as eye facets in diameter, interspaces between them about a puncture diameter and smoothly microreticulated. Ventrites very finely and very densely microgranulose. Antennái club (Fig. 92) comprising about 2/7 of total antennái length, about 1.5 times as long as wide, antennomere 3 nearly as long as antennomere 2 and 1.5 times as long as antennomere 4. Pronotum with posterior edge rather widely rounded than oblique at posterior angles. Elytra about 7/9 as long as broad combined, their apices separately widely rounded (and forming an open suturai angle). Pygidium subtruncate at apex. Mentum subquadrangular, more than 3 times as wide as long. Prosternum sharply carinate, but its process flattened and rather widened at very widely rounded to subtruncate posterior edge. Median plate of mesosternum almost 3 times as wide as long, its posterior edge nearly straight. Metasternum subflattened in the middle. Hypopygidium shallowly emarginate before median movable lobe and with a distinct and comparatively wide process bearing a brush of very short and dense setae at bottom of this emargination (Fig. 94). Apex of last abdominal segment: Fig. 93. Ventral plate and spiculum gastrale: Fig 95. Tegmen well sclerotized (Figs 96-100). 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. Variability - Length 4.0-6.3, width 2.5-3.9 mm. Dorsum dark brown to light brown, underside and appendages in all cases somewhat lighter. Rather great variability is observed in puncturation, sometimes becoming larger and subuniform on all dorsal sclerites. Conspicuousness of pubescence and sculpture of interspaces between punctures also somewhat variable. The apical emargination of the male hypopygidium is sometimes very weak and the process at its bottom varies in width, but in all cases this process is comparatively wider than that in A. lobanovi sp. n. and A. oblongus GROUVELLE, 1897. Diagnosis - This new species has a combination of the distinguishing characters used in the key below. It resembles A. lobanovi sp. n. and A. oblongus, but differs from them in the narrower antennái club, in generally shallower apical emargination of hypopygidium, wider process at bottom of this emargination and apices of lateral lobes of tegmen. This new species and A. solodovnikovae sp. n. form a pair of closely related species which can be distinguished by the characters given in the key below. In addition to the characters listed in the key, these species are quite different in shape of the male ventral plate and spiculum gastrale and penis trunk. Etymology - The Latin name of this new species means "conjectured" and "supposed".