taxonID	type	description	language	source
B75D4A60FFCAFF8AFCBFF9A9B2FFF5CF.taxon	description	The best distinguishing character for A. nana and A. dispar is the structure of the male aedeagus (illustrations are presented in Vorst and Sörensson 2005). The female spermathecae are very similar, the main difference being a small tubercle on the base of the spermatheca of A. nana (Sörensson 2007). Other subtle differences occur in the external microreticulation and punctation of the upper body surface, especially of the head and prothorax. In typical specimens of A. nana, the external upper surface structure is fainter and less pronounced, making the surface appear shinier. Additionally, the prothorax is slightly more convex with curved sides. However, due to high individual variation within A. dispar, including individuals with strongly reduced external punctation and surface microstructure, definite identity assessment of females based on these features may be very difficult or even impossible (Vorst and Sörensson 2005).	en	komosiński, Karol, Marczak, Dawid (1872): Ptiliolum caledonicum (Sharp, 1872) andBaeocrara japonica (Matthews, 1885) (Coleoptera: Staphylinoidea: Ptiliidae) New to Poland, with Additional Polish Records ofAcrotrichis nanaStrand, 1946. The Coleopterists Bulletin 70 (1): 87-90, DOI: 10.1649/072.070.0111, URL: http://dx.doi.org/10.1649/072.070.0111
B75D4A60FFCAFF8AFCBFF9A9B2FFF5CF.taxon	materials_examined	Material Examined. Mazurian Lake District (northeastern Poland): ad Pawłowo (Fig. 1) (DE 53), 8 VIII – 10 IX 1997 – 2 males, leg et coll. K. Komosiński, earth trap with bait (fish), dry pine forest with juniper; Mazovian Lowland (central Poland): Kampinos National Park, Strict Protection Area Sieraków (Fig. 1), forest spatial unit 77 (DC 89), 1 - 31 V 2014 – 1 male, leg K. Komosiński, coll. D. Marczak, collected by window trap, dry pine forest with pine trees over 180 years old, forest spatial unit 100 (DC 89), 1 - 30 IV 2014 – 1 specimen, 1 - 31 V 2014 – 1 specimen, 1 - 31 VII 2014 – 2 specimens, leg K. Komosiński, coll. D. Marczak, collected by window traps, 1 - 31 VII 2014 – 1 male, collected by barrier trap hanging on a pine, dry pine forest with pine trees over 200 years old; Kampinos National Park, Strict Protection Area Kaliszki (Fig. 1), forest spatial unit 25 (DD 80), 1 - 31 VII 2014 – 1 specimen, leg K. Komosiński, coll. D. Marczak, collected by barrier trap hanging on a pine, fresh pine forest with pine trees over 165 years old. Discovering new species of Ptiliidae in Poland seems likely. Since the year 1925, several immigrant species of Ptiliidae have been found in western and northern Europe, e. g., Bambara contorta (Dybas, 1966), Bambara fusca (Dybas, 1966), Ptinella cavelli (Broun, 1893), Ptinella errabunda (Johnson, 1975), Ptinella johnsoni (Rutanen, 1985), Ptinella simsoni (Matthews, 1878), Ptinella taylorae (Johnson, 1977), Acrotrichis cognata (Matthews, 1877), Acrotrichis josephi (Matthews, 1872), Acrotrichis insularis (Mäklin, 1852), Acrotrichis sanctaehelenae Johnson, 1972 (Sörensson and Johnson 2004), and Ptinella populicola Vorst, 2012 (Vorst 2012). However, before these discoveries, only one immigrant species, Acrotrichis henrici (Matthews, 1872) (Burakowski et al. 1978), was found in Poland.	en	komosiński, Karol, Marczak, Dawid (1872): Ptiliolum caledonicum (Sharp, 1872) andBaeocrara japonica (Matthews, 1885) (Coleoptera: Staphylinoidea: Ptiliidae) New to Poland, with Additional Polish Records ofAcrotrichis nanaStrand, 1946. The Coleopterists Bulletin 70 (1): 87-90, DOI: 10.1649/072.070.0111, URL: http://dx.doi.org/10.1649/072.070.0111
B75D4A60FFCAFF8BFEBCF875B518F5CF.taxon	description	Baeocrara japonica was described from Japan. In Europe, it was first noted in Finland in 1974 and in Sweden in 1976 (Rutanen and Muona 1977). It was later found in Germany, Hungary, Norway, Denmark, Austria, the Czech Republic, Latvia, Belarus, and Slovakia (Sörensson and Johnson 2004). Here, we report the first find from Poland. Ephemeral habitats such as feces, carcasses, and compost are preferred.	en	komosiński, Karol, Marczak, Dawid (1872): Ptiliolum caledonicum (Sharp, 1872) andBaeocrara japonica (Matthews, 1885) (Coleoptera: Staphylinoidea: Ptiliidae) New to Poland, with Additional Polish Records ofAcrotrichis nanaStrand, 1946. The Coleopterists Bulletin 70 (1): 87-90, DOI: 10.1649/072.070.0111, URL: http://dx.doi.org/10.1649/072.070.0111
B75D4A60FFCAFF8BFEBCF875B518F5CF.taxon	materials_examined	Material Examined. Mazurian Lake District (northeastern Poland): Sątopy (Fig. 1), Nisko colony (EE 09), 26 VII 2003 – 1 female, leg et coll. K. Komosiński, in flight, close to a large farm.	en	komosiński, Karol, Marczak, Dawid (1872): Ptiliolum caledonicum (Sharp, 1872) andBaeocrara japonica (Matthews, 1885) (Coleoptera: Staphylinoidea: Ptiliidae) New to Poland, with Additional Polish Records ofAcrotrichis nanaStrand, 1946. The Coleopterists Bulletin 70 (1): 87-90, DOI: 10.1649/072.070.0111, URL: http://dx.doi.org/10.1649/072.070.0111
