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Three larval instars of Nearctic Agathidium angulare Mannerheim, 1852, are described in detail and the first and third stage larvae are figured for the first time; morphology of the stages was analyzed and compared, with special emphasis on measurements, chaetotaxy and porotaxy of head, mouthparts, thorax, abdomen, leg and urogomphi. Preliminary discussion on larval characters of the genus Agathidium is provided.
This is the first detailed description of the mature larva of Anisotoma discolor Melsheimer, 1844, a Nearctic member of the tribe Agathidiini. The setal pattern of cephalic capsule, mouthparts, legs, urogomphi, thoracic and abdominal segments are described and figured, and the measurements are given.
New localities of Platypsyllus castoris in Poland are reported. The species is newly reported from Pomeranian Lakeland, Podlasie and Kraków-Wieluń Upland.
Research on Cholevinae (Coleoptera: Leiodidae) of upland mixed fir forest in the Świętokrzyski National Park is presented. In 2008 twelve species from the area were revealed five of them were recorded for the first time from the park, and four are new to the Świętokrzyskie Mts. Seasonal patterns of abundance are shown for selected species.
New distributional records concerning the occurrence of the genera Catops, Apocatops and Fissocatops (Coleoptera: Leiodidae: Cholevinae) in Poland are given. Fifteen species are recorded from new localities, and three of them are reported for the first time from new regions.
New faunistic data on the occurrence of 34 Leiodidae species in the environs of Radom (E Poland) is presented. The occurrence of Agathidium nudum in Poland is confirmed with new data. Several other rarely encountered species are reported, including Catops nigriclavis, Choleva sturmii, Agathidium mandibulare, Liodopria serricornis, Leiodes bicolor, L. oblonga, L. rubiginosa, and Platypsyllus castoris. Difficulties with identification of Central European Leiodidae are briefly discussed. To facilitate identification of Ptomaphagus species known from Poland, figures of aedeagi and spermathecae are provided.
Two larval instars of Quaestus (Quaesticulus) pachecoi (Bolivar, 1915) are described and illustrated for the first time. Chaetotaxy, morphology and measurements indicate that the Q. (Q.) pachecoi has a classic type of development with two instars only and larvae belong to a classic type according to the Deleurance-Glaçon classification.
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