147,245 research outputs found
Diaulota submarina Ahn 2023, sp. nov.
No full textDiaulota submarina sp. nov. (Figs. 1–4) Diaulota uenoi: Ahn, 1996: 284; Frank and Ahn, 2011: 26; Ahn et al., 2017: 306; Park and Lee, 2021: 240 [misidentification]. Description. Small, body length 2.5–2.9 mm. Body more or less narrow but robust, long setae densely pubescent (Fig. 1). Body reddish brown with blackish brown abdominal tergites VI–VII. Head slightly deflexed, 1.2 times as long as wide (Fig. 2A), sculpture reticulate, about 3 pairs of long filiform setae present on each side, infraorbital carina present (Fig. 2B). Antennomeres 4–5 more or less subquadrate, 6–10 transverse. Eye small, 0.2 times as long as head (Fig. 2A), minute setae present between facets. Labrum (Fig. 3A) large, semicircular, 12 long and macrosetae and 4–5 short and microsetae present on each side of midline. Mandibles (Fig. 3B) narrow and elongate, more or less symmetrical, small median tooth present. Maxilla (Fig. 3C) with galea and lacinia elongate, almost equal in length; galea corneous, apex and internal surface densely pubescent with long filiform setae; lacinia more or less acute, internal surface with comb of single row of about 8 well separated spines followed by several setae, a distinctive row of several setae present on mesal half of lacinial surface; maxillary palpus with 4 articles, robust, article 3 incrassate distally and longer than article 2, article 4 narrowed distally. Labial palpi (Fig. 3D) with 3 distinct articles, palpomere 1 slightly longer than wide, palpomere 2 narrower than 1 and almost 2.0 times as long as 1, palpomere 3 narrower than 2 and slightly longer than 1; ligula simple and elongate with 2 minute setae; twin pores, median pore, and distal pore indistinctly present; medial setae absent on prementum, real pores and setal pores present, basal pores absent, pseudopores absent in very narrow median area, about 4 pseudopores present on each side; a pair of indistinct comb-like hypoglossae present. Mentum (Fig. 3D) without v setae, anterior margin shallowly emarginate, several setae present, many punctures present. Submentum with numerous punctures and setae. Neck absent. Pronotum 0.9 times as long as wide, narrowest at base and widest near one third, basal margin almost straight but slightly prolonged posteriorly on median region, apical margin slightly prolonged anteriorly; long setae subparallel, uniformly distributed and apical half directed anteriorly, basal half directed posteriorly in a narrow median strip, others curve correspondingly; about 3 pairs of long filiform setae present, 1 on disc, 1 on lateral margin, and 1 on apico-lateral margin. Hypomeron entirely visible in lateral aspect, with longitudinal carina. Scutellum more or less diamond-shaped. Elytron 1.2 times as long as wide; 0.7 times as long as pronotum; long setae uniformly distributed and directed posteriorly; about 2 pairs of long filiform setae present, 1 on disc and 1 on lateral margin. Hind wings absent. Mesocoxal cavities contiguous; mesoventral process short and pointed (Fig. 2C). Metaventrite shorter than width of mesocoxa, expanded apico-basally (Fig. 2C). Metendosternite Y-shaped (Fig. 2C). Tibiae with two thick setae on hind margin. Tarsal formula 4-4-4, tarsus with long setae but spatulate seta absent. Claws narrow, long, sickle-shaped. Abdomen gradually broadening to rounded apex; relatively long numerous setae uniformly distributed, directed posteriorly. Tergites III–VI strongly impressed at base. Sternites not impressed at base. Male sternite VIII (Fig. 4A) prolonged posteriorly as broad triangular projection but female unmodified. Male tergite X slightly truncated at posterior margin (Fig. 4B). Female tergite X rounded at posterior margin (Fig. 4C). Median lobe with complex internal sclerites (Fig. 4D). Paramere (Fig. 4E). Spermatheca (Fig. 4F). Specimens Examined. Holotype: 1♁ (CNUIC), with labels as follows: “ KOREA: Chungnam: Anmyeon Isl., Bangpo Beach, 8 VI 1994, K. J. Ahn, ex rocks in low tide | Holotype Diaulota submarina Ahn, 2023 ”. Paratypes: 7 exx. (4 on slides), same data as holotype; 15 exx., KOREA: Chungnam Prov., Muchangpo, 28 III 1998, K.-J. Ahn, ex inside empty barnacles in low tide. Other specimens: 13 exx. (alcohol collection), Chungnam: Anmyeon Isl., Bangpo Beach, 7 VI 1994, K. J. Ahn, ex rocks in low tide; 10 exx. (alcohol collection, 1 on slide), Jeju Prov., Udomyeon, Yeonpyeong-ri, Udo island, 1 III 2007, KJ Ahn; 1 ex., Gyengnam Prov., Geoje City, Gabae-ri, 1 VII 2000, K.-J. Ahn, H.-J. Kim M.-J. Jeon, ex barnacles. Distribution. Korea (South). Etymology. The adjective submarina refers to the microhabitat of the species. Remarks. There is sexual dimorphism in size (bigger in male) and shape of head (broadening anteriorly in male but more or less parallel in female) in this new species as other Diaulota species (Fig. 1A). This species is similar to D. uenoi and almost indistinguishable by the external morphological characters (see key couplet below). However, it is different from the latter in mouthparts and the external shape and internal structure of the median lobe. Apical process of D. uenoi is broader and more abruptly bent upward (fig. 10L in Sawada, 1971) compared to the new species, narrower and slightly bent upward (Fig. 4D; fig. 40 in Ahn, 1996). Especially, the form of internal sclerites of median lobe are different: apical one larger and polygonal in D. submarina (Fig. 4D; fig. 40 in Ahn, 1996) but smaller and rounded in D. uenoi (fig. 10L in Sawada, 1971). They can be regarded as cryptic species.Published as part of Ahn, Kee-Jeong, 2023, Description of Diaulota submarina sp. nov. (Coleoptera: Staphylinidae: Aleocharinae) on Korean coasts, pp. 141-147 in Zootaxa 5336 (1) on pages 141-142, DOI: 10.11646/zootaxa.5336.1.8, http://zenodo.org/record/826868
Effects of chitosan coating and storage with dry ice on the freshness and quality of eggs
No full textTo develop a method that can maintain egg freshness during practical storage conditions, eggs were coated with chitosan and stored with or without dry ice. The physicochemical and microbiological qualities of eggs were evaluated during 14 d of storage at 4 and 23°C without dry ice and at 23°C with dry ice. The combination of chitosan coating and dry ice significantly inhibited a Haugh unit decrease during storage at 23°C. No difference in functional properties, such as foaming ability, foam stability, and viscosity, among treatments was observed, but chitosan coating and storage with dry ice decreased the rate of pH increase and moisture loss in albumen at d 7 and 14. The eggs treated with chitosan coating and storage with dry ice had a significantly lower number of Salmonella Typhimurium inoculated on the egg surface than did control eggs during storage at 23°C. Results revealed that the combination of chitosan coating and storage with dry ice limited the moisture loss, CO2 emission, and pH increase, which helped maintaining the freshness of eggs. Microbial growth was also inhibited during storage at 23°C.This article is published as Jo, C., D. U. Ahn, X. D. Liu, K. H. Kim, and K-C. Nam. "Effects of chitosan coating and storage with dry ice on the freshness and quality of eggs." Poultry Science 90, no. 2 (2011): 467-472. doi:10.3382/ps.2010-00966.</p
Irradiation of shell egg on the physicochemical and functional properties of liquid egg white
No full textThis study was aimed at determining the effect of irradiation of shell eggs on the physiochemical and functional properties of liquid egg white during storage. Color and textural parameters of irradiated liquid egg white after cooking were also determined. Shell eggs were irradiated at 0, 2.5, 5, or 10 kGy using a linear accelerator. Egg white was separated from yolk and stored in at 4°C up to 14 d. Viscosity, pH, turbidity, foaming properties, color, and volatile profile of liquid egg white, and color and texture properties of cooked egg white were determined at 0, 7, and 14 d of storage. Irradiation increased the turbidity but decreased viscosity of liquid egg white. Foaming capacity and foam stability were not affected by irradiation at lower dose (2.5 kGy), but were deteriorated at higher doses (≥5.0 kGy) of irradiation. Sulfur-containing volatiles were generated by irradiation and their amounts increased as the irradiation dose increased. However, the sulfur volatiles disappeared during storage under aerobic conditions. Lightness (L* value) and yellowness (b* value) decreased, but greenness (−a* value) increased in cooked egg white in irradiation dose-dependent manners. All textural parameters (hardness, adhesiveness, cohesiveness, chewiness, and resilience) of cooked egg white increased as the irradiation dose increased, but those changes were marginal. Our results indicated that irradiation of shell egg at lower doses (up to 2.5 kGy) had little negative impact on the physiochemical and functional properties of liquid egg white, but can improve the efficiency of egg processing due to its viscosity-lowering effect. Therefore, irradiation of shell eggs at the lower doses has high potential to be used by the egg processing industry to improve the safety of liquid egg without compromising its quality.This article is published as Min, B., K. C. Nam, C. Jo, and D. U. Ahn. "Irradiation of shell egg on the physicochemical and functional properties of liquid egg white." Poultry science 91, no. 10 (2012): 2649-2657. doi:10.3382/ps.2012-02345.</p
All data (N=54) and R codes used in Ahn, W.-Y.∗, Ramesh∗, D., Moeller, F. G., & Vassileva, J., (2016) Frontiers in Psychiatry.
No full textAll data (N=54) and R codes used in: Ahn, W.-Y.∗, Ramesh∗, D., Moeller, F. G., & Vassileva, J. (2016) Utility of machine learning approaches to identify behavioral markers for substance use disorders: Impulsivity dimensions as predictors of current cocaine dependence. Frontiers in Psychiatry. The codes and some tutorials are also available at the first author's (Woo-Young Ahn's) website (http://u.osu.edu/ccsl/codedata/machine-learning/).Unzip the file and read instructions inLASSO_cocaine_frontiers.RLASSO_cocaine_frontiers_multipleTestSets.R</div
Ah Ruem Ahn, Piano
No full textSeptember 27th, 2013
Ah Ruem Ahn, piano, performed Albéniz: Iberia, Book I; Schubert: Sonata in G major, D. 894.
Photo credit: Dag Fosse / KODEhttps://digitalcommons.rockefeller.edu/tri-institutional-noon-recitals/1260/thumbnail.jp
Liogluta changwhani Lee and Ahn, sp. nov.
No full textLiogluta changwhani Lee and Ahn, sp. nov. (Figs. 1 A, 2–3) Description. Length 2.5–2.8 mm. Body (Fig. 1 A) parallel-sided; surface fairly glossy and densely pubescent, with microsculpture. Body dark brown to black; head almost black; pronotum and abdomen darker than elytra; legs paler, yellowish brown. Head. Subquadrate, about 1.0–1.1 times as wide as long, widest across eyes, slightly narrower than pronotum; eyes large and prominent, about 1.4–1.5 times as long as temples; gular sutures moderately separated, more or less diverged basally; infraorbital carina complete; cervical carina complete. Antennae (Fig. 3 A) long and slender; antennomeres 1–3 elongate, 1 longest, 2 about as long as 3, 4–10 subquadrate to slightly transverse, 11 longer than wide, about as long as preceding two combined. Mouthparts. Labrum (Fig. 2 A) transverse, slightly emarginate in anterior margin, with ε-sensillum and about 9–10 macrosetae on each side of midline; epipharynx (Fig. 2 B) with several sensilla, including 2 lateral sensory rows on each side of midline; αsensillum long and setaceous, about 2.0 times as long as ε-sensillum, β-sensillum short, convergent apically, γsensillum reduced. Mandibles (Figs. 2 C–D) asymmetrical, subtriangular, decurved and pointed apically, about 1.5–1.6 times as long as basal width; minute denticles present in molar region; right one (Fig. 2 C) with small internal tooth, internal margin slightly serrulate; prostheca developed, composited three portions, second portion slightly longer. Galea and lacinia of maxilla (Fig. 2 E) long and slender; lacinia having seven spines in distal comb region, contiguous with two isolated spines; maxillary palpus elongate, with pubescence and long setae; palpomere 1 smallest, 2 about 2.8–3.0 times as long as wide, 3 slightly longer than 2, about 2.7–2.9 times as long as wide, 4 digitiform, filamentous sensilla reaching to basal half. Labium (Fig. 2 F) with ligula divided into 2 lobes in basal half; prementum with two medial setae widely separated; two basal pores narrowly separated, about 1.0–2.0 times width of basal pore; several medial pseudopores, 1 setal pore and 2 real pores present on each side of midline; labial palpus with many setulae; palpomere 1 largest, about 2.0 times as long as wide, γ-setula contiguous with bseta, 2 shortest, about 1.4–1.6 times as long as wide, 3 subparallel-sided, slightly shorter than 1, about 3.0–3.5 times as long as wide. Mentum (Fig. 2 F) trapezoidal, anterior margin emarginate; v-seta short, close to u-seta. Thorax. Pronotum slightly transverse, approximately 1.3 times as wide as long, widest in apical third; hypomera fully visible in lateral aspect. Metanotal scutum with 1 long seta and about 4–5 relatively short setae on each side of midline. Mesocoxal cavities narrowly separated, mesoventral process pointed at apex, slightly longer than isthmus and metaventral process combined; isthmus slightly longer than metaventral process. Elytra longer and slightly wider than pronotum; elytron approximately 1.5–1.6 times as long as wide, pubescence directed posteriorly and postero-laterally; postero-lateral margin almost straight; hind wings fully developed, flabellum composed of about 5–6 long setose lobes. Legs. Slender and long, with pubescence and macrosetae; meso- and metatibiae with different length of two spurs at apex; tarsal formula 4-5-5, length ratio of tarsomeres 25:27:30:67 (protarsus); 31:36:38:39:68 (mesotarsus); 48:46:44:42:80 (metatarsus); one empodial seta present, about as long as claw. Abdomen. Parallel-sided; surface distinctly glossy and densely pubescent, with reticulate microsculpture; macrochaetal arrangement of tergites II–VI 01-21-13 -13-13; male tergite VIII (Fig. 3 B) with 4 macrosetae on each side of midline; broad process present in median region and posterior margin crenate; male sternite VIII (Fig. 3 C) with 9 macrosetae on each side of midline, posterior margin slightly convex, subtriangular, with long marginal setae; posterior margin of female tergite VIII (Fig. 3 D) subtruncate; female sternite VIII (Fig. 3 E) with 7 macrosetae, posterior margin slightly emarginate in median region, with conspicuous marginal setae and minute setae. Aedeagus. Median lobe (Figs. 3 F–G) narrowly ovate and widest in basal fourth, apical process elongate and convergent at apex in ventral aspect; internal sac developed. Apical lobe of paramerites (Fig. 3 H) with four setae; a-seta slightly longer than b- and d-setae subequal in length, c-seta very short and close to d-seta. Spermatheca. Bursa dilated apically and conical shaped umbilicus; duct loosely coiled (Fig. 3 I). Type material. Holotype, ♂, labeled as follows: ‘ KOREA: Chungnam Prov., Daejeon-si, Seo-gu, Jangandong, Mt. Jangtaesan, N36°13′03.3″ E127°20′36.2″ 258 m, 28 III 2012, DH Lee, TK Kim, SG Lee; HOLOTYPE Liogluta changwhani Lee and Ahn 2016 ’. Desig. S.-G. Lee and K.-J. Ahn 2016. Paratypes, 40 exx. (total): 19 exx. (one on slide), same data as Holotype; 21 exx. (two on slide), Korea. Gyeongbuk prov., Yongjang-ri, Naenammyeon, Gyeongju-si, ex FIT 21.V-26.VI.2007, YB Cho coll. E129°12′42.9″ N35°46′19.5″. Material examined. SOUTH KOREA: Chungnam prov.: 11 exx. (five in 95% ETOH), Daejeon-si, Seo-gu, Jangan-dong, Jangtaesan Recreational Forest, N36°13′4.32″ E127°20′34.44″ 257m, 17 III 2011, IS Yoo, YH Kim, SG Lee, leaf litters. Distribution. Korea (South). Remarks. Adults are similar to those of L. pyonganica, but can be distinguished by the characters provided in the key and different shape and structure of aedeagus and spermatheca. Etymology. Named after the late professor Chang-Whan Kim in honor of his pioneering research on Korean insects.Published as part of Lee, Seung-Gyu & Ahn, Kee-Jeong, 2016, A taxonomic review of Korean Liogluta Thomson (Coleoptera, Staphylinidae, Aleocharinae) with descriptions of three new species, pp. 285-303 in Zootaxa 4193 (2) on pages 286-290, DOI: 10.11646/zootaxa.4193.2.5, http://zenodo.org/record/16691
Earota babai Lee & Ahn 2014, comb. nov.
No full textEarota babai (Sawada, 1989), comb. nov. (Figs. 1, 3–11) Pelioptera babai Sawada, 1989: 301; Smetana, 2004: 415 (as valid species). Redescription. Body length about 3.5–4.8 mm. Body (Fig. 1) subparallel-sided; surface slightly glossy and densely pubescent, with fine punctures. Head, antennae, pronotum and abdomen dark brown to black; elytra and legs brownish, paler than other parts. Head. Subquadrate, about as wide as long, widest across eyes, narrower than pronotum; eyes large and distinctly prominent, about 1.5 times as long as tempora; cervical carina complete; gular sutures moderately separated, slightly diverged basally. Antennae (Fig. 3) long and slender; antennomeres 1–3 elongate, 1 longer than 2, 2 about as long as 3, 4 about as long as wide, 5–10 increasingly transverse apically, 11 longest, about as long as preceding three combined. Mouthparts. Labrum transverse, emarginate in anterior margin; 3 lateral sensilla and 8 macrosetae present on each side of midline; epipharynx with α -sensillum shorter than ε -sensillum, β - and γ -sensilla very short (α–ε; see Ashe 1984). Mandibles asymmetrical, pointed at apex, about 1.6–1.7 times as long as wide; right mandible with small internal tooth, internal margin serrulate; prostheca developed. Lacinia of maxilla with nine spines in distal comb; maxillary palpus elongate, with long setae; palpomere 1 smallest, 2 about 3.6 times longer than wide, 3 slightly longer than 2, about 3.0 times longer than wide, 4 digitiform, filamentous sensillae not reaching to basal half of palpomere 4. Labium with ligula narrowed apically; two medial setae very widely separated; two basal pores very widely separated; lateral pseudopores absent, some medial pseudopores present, 1 setal pore and 3 real pores present on each side of prementum; labial palpus elongate, with many long setulae; palpomere 1 about twice longer than wide, with γ -setulae located between α and b -setulae, distance from setula α to γ twice as long as distance from setula b to γ; palpomere 2 shortest, about 1.6 times longer than wide; palpomere 3 parallel-sided, about as long as 1, about 3.0–3.5 times longer than wide. Mentum trapezoidal, anterior margin emarginate, v -seta very short (See Sawada 1989: 302 for mouthparts drawings). Thorax. Pronotum (Fig. 4) slightly transverse, approximately 1.2 times as wide as long, wider at apical third to middle; macrosetae moderately long, some assembled in postero-lateral margin. Metanotal scutum with 1 long seta and about 4–5 moderately long setae on each side of midline; mesocoxae widely separated; mesoventral process rounded at apex, as long as or slightly longer than metaventral process (Fig. 5). Elytra transverse, wider than pronotum, each elytron approximately 1.5–1.6 times as long as wide; postero-lateral margin almost straight; pubescence directed posteriorly and postero-laterally; hind wings fully developed; flabellum composed of about 12–14 setose lobes. Legs. Slender and moderately long, with dense pubescence; length ratio of tarsomeres 36:42:50:100 (protarsus); 50:68:65:57:96 (mesotarsus); 90:88:80:68:113 (metatarsus). Abdomen. Subparallelsided, slightly wider at middle; surface glossy and densely pubescent, with transversely reticulate microsculpture. Macrochaetal arrangement of tergites II–III 01–12; tergites III–VI impressed basally; male tergite VII (Fig. 6) with elongate tubercle in median region; tergite VIII (Fig. 7) with 5 macrosetae on each side of midline, posterior margin slightly serrulate, emarginate at middle; male sternite VII with many small pores in basal region; sternite VIII with 7 macrosetae on each side of midline, posterior margin broadly round, slightly emarginate in median region, slightly sclerotized and translucent, with marginal setae; female sternite VIII similar to male, with long and short marginal setae, minute setae present in median region. Tergite X with medial setose patch chevron-shaped; seta in four oblique rows; rows convergent proximally. Aedeagus. Median lobe (Figs. 8, 9) oval, apical process in ventral aspect convergent apically. Apical lobe of paramerite (Fig. 10) with four setae; a -seta longest, d -seta slightly longer than b -seta (a–d; see Sawada 1972: 50). Spermatheca. Bursa relatively small, with flat umbilicus; duct broader apically (Fig. 11). Material examined. KOREA: Chungbuk Prov.: ♀, Danyang-gun, Yeongcheon-myeon, Mt. Taehwasan, 14 VII – 14 VIII 2001, KJ Ahn, SJ Park, CW Shin, FIT; 3♀, Danyang-gun, Mt. Sobaeksan, Cheondong, 7–9 V 1999, US Hwang, HJ Kim, FIT; Gangwon Prov.: 2♂, 2♀, Jeongseon-gun, Gohan-eup, Mt. Hambaeksan, 13 VII 1999, US Hwang, HJ Kim, FIT; ♀, Hongcheon-gun, Naechon-myeon, Mt. Baekamsan, Garyeong fall, 24 V 2002, KJ Ahn, JS Park, sifting; 2♀, Pyeongchang-gun, Bangnim-myeon, Ungyo-ri, Mt. Baekdeoksan, 12 VII–16 VII 2001, KJ Ahn, SJ Park, CW Shin, FIT; ♀, Pyeongchang-gun, Cheondong-ri, Mt. Sambangsan, 13 VII–15 VIII 2001, KJ Ahn, SJ Park, CW Shin, FIT in Pinus forest; 3♂, 2♀, Pyeongchang-gun, Jinbumyeon, Dongsan-ri, Mt. Odaesan, Sangwonsa, 30 IV–4 VI 2001, KJ Ahn, SJ Park, MS Kim, MJ Jeon, FIT; ♀, same data as former except for ‘ 4 VI – 22 VI 2001’; ♀, same data as former except for ‘ 22 VI –16 VIII 2001, SJ Park, CW Shin, FIT’; ♀, same data as former except for ‘ 18 VI 2004, SJ Park, FIT’; 2♂, ♀, same data as former except for ‘ 21 IV–18 V 2002, CW Shin, FIT’; ♀, same data as former except for ‘ 18 V –23 VI 2002’; ♂, ♀ (on slide), same data as former except for ‘N37˚47.074’ E128˚33.735’, 15 V 2006, TK Kim, HW Kim, sifting, leaf litter’; 7♂, 6♀, same data as former except for ‘N37˚47’03” E128˚33’55”, 9–25 V 2004, SJ Park, SM Choi, DH Lee, FIT’; 3♂, ♀, Pyeongchang-gun, Mt. Odaesan, Jeongmyeolbogung, 7–9 VII 1998, KL You, HJ Lim, FIT; 11♂ (two on slide), 5♀ (one on slide), Taebaek-si, Mt.Taebaeksan, Baekdansa, 14 VII 1999, US Hwang, HJ Kim, FIT; 2♂, 5♀ (one on slide), same data as former except for ‘ 16 VII 1999 ’. Distribution. Korea (South) and Japan. Remarks. This species is transferred from Pelioptera Kraatz, 1857 to Earota based on Gusarov’s diagnosis of the latter genus (2002). It corresponds to Earota and differs from Pelioptera species in the following characters: larger and broader body (smaller and slender body in Pelioptera); antennomere 11 about as long as preceding three combined (antennomere 11 about as long as preceding two combined in Pelioptera); mesoventral process round at apex (mesoventral process truncate at apex in Pelioptera); large and broad medial lamellae of internal sac of aedeagus (small and narrow medial lamellae of internal sac of aedeagus in Pelioptera); and different shape of spermatheca. Earota babai is a new addition to the Korean fauna and the genus is reported from the East Palaearctic region for the first time.Published as part of Lee, Seung-Gyu & Ahn, Kee-Jeong, 2014, Two new combinations and a key to the species of the genus Earota Mulsant & Rey (Coleoptera: Staphylinidae: Aleocharinae), pp. 187-193 in Zootaxa 3765 (2) on pages 188-191, DOI: 10.11646/zootaxa.3765.2.6, http://zenodo.org/record/490962
Atheta (Dimetrota) ovata Lee & Ahn 2022, sp. nov.
No full textAtheta (Dimetrota) ovata Lee & Ahn, sp. nov. (Figs. 1B, 3A–F, 4A–H, 5A–G, 6A–D) Description. Length 2.5–3.2 mm. Body (Fig. 1B) surface glossy, densely pubescent with microsculpture. Body dark brown to black; antennae, elytra and legs paler than other parts, brownish. Head. Slightly transverse (Fig. 4A), approximately 1.1–1.2 times as wide as long, widest across eyes, slightly narrower than pronotum; eyes large and prominent, about 1.5–1.6 times as long as temples; gular sutures moderately separated, more or less diverged basally; cervical carina complete. Antennae (Fig. 4B) long and slender; antennomeres 1–3 elongate, 1 longest, 2 about as long as 3, 4–10 quadrate to subquadrate, 11 about as long as 1, about as long as preceding two combined. Mouthparts. Labrum (Fig. 3A) with 10–11 macrosetae on each side of midline; epipharynx (Fig. 3B) with α-sensillum long and setaceous, about 3.0 times as long as ε-sensillum; β- and γ-sensilla short. Mandibles (Figs. 3C–D) asymmetrical, subtriangular, decurved and pointed apically, about 1.5–1.6 times as long as basal width; very few small denticles present in molar region; right one (Fig. 3C) with small internal tooth, internal margin slightly serrulate; prostheca developed, composed of three portions, second portion slightly longer. Galea and lacinia of maxilla (Fig. 3E) long and slender; maxillary palpus elongate and pubescent; palpomere 1 smallest, 2 about 2.6–2.8 times as long as wide, 3 slightly longer than 2, about 2.5–2.7 times as long as wide, 4 digitiform, filamentous sensilla not reaching to basal half. Prementum (Fig. 3F) with two medial setae very narrowly separated; two basal pores contiguous, less than 1.0 times width of basal pore; several medial pseudopores, lateral pseudopores, 1 setal pore and 2 real pores present on each side of midline; labial palpomere 1 largest, about 1.5–1.6 times as long as wide, γ-setula contiguous with b-seta, 2 shortest, about 1.6–1.8 times as long as wide, 3 more or less dilated apically and slightly shorter than 1, about 2.5–3.0 times as long as wide. Mentum (Fig. 3F) trapezoidal, anterior margin slightly emarginate; v-seta relatively long, close to u-seta. Thorax. Pronotum (Fig. 4C) approximately 1.3–1.4 times as wide as long, widest in apical third to half. Prosternum as in Fig. 4D. Metanotal scutum (Fig. 4E) with 1 long seta and about 3–4 short setae on each side of midline. Mesoventral process (Fig. 4F) distinctly pointed at apex, longer than isthmus and metaventral process combined. Scutellum as in Fig. 4G. Elytra slightly longer and wider than pronotum; elytron (Fig. 4H) approximately 1.6 times as long as wide; hind wings fully developed, flabellum (Fig. 4E) composed of about 6–7 long setose lobes. Legs. Length ratio of tarsomeres 22:26:30:76 (protarsus); 30:35:38:35:68 (mesotarsus); 45:44:43:46:96 (metatarsus). Abdomen. Surface glossy and densely pubescent, with transverse and reticulate microsculpture (Fig. 5C); macrochaetal arrangement of tergites II–VI 02-13 (or 23)-23-23-23; male sternites III–VI with many small pores, VII with several small pores in anterior region; male tergite VIII (Fig. 5A) with 4 macrosetae on each side of midline, posterior margin (Fig. 5B) with broad process, slightly emarginate in median region and slightly angled in postero-lateral margins; male sternite VIII (Fig. 5D) with 10 macrosetae on each side of midline, posterior margin with inconspicuous marginal setae; posterior margin of female tergite VIII (Fig. 5E) truncate in median region; female sternite VIII (Fig. 5F) with 8 macrosetae, posterior margin (Fig. 5G) broadly rounded, with conspicuous and long marginal setae, minute setae present in median region. Aedeagus. Median lobe (Figs. 6A–B) narrowly ovate, apical process subtriangular and convergent at apex, apex slightly swollen and globular in ventral aspect. Apical lobe of paramerites (Fig. 6C) subparallel-sided, with 4 setae; b-seta longest, distinctly longer than other setae short and subequal in length, c- and d-setae close together. Spermatheca. Bursa elongate, with slender umbilicus; duct recurved, deflected at apex (Fig. 6D). Type material. Holotype, ♂, labeled as follows: ‘ KOREA: Gangwon Prov., Pyeongchang-gun, Jinbu-myeon, Dongsan-ri, Mt. Odaesan, Sangwonsa, 22 VI–16 VIII 2001, S.-J. Park, C.-W. Shin, ex FIT’. Paratypes, 9 exx., same data as holotype. Material examined. SOUTH KOREA: Chungbuk Prov.: 3 exx., Buyeo-gun, Oesan-myeon, Gaedeok-ri, Mt. Wolmyeongsan, 1 vi 2000, US Hwang, HJ Kim, sifting; 1 ex., Danyang-gun, Mt. Sobaeksan, Cheongdong, 7–9 v 1999, US Hwang, HJ Kim, sifting. Chungnam Prov.: 1 ex., Gongju-si, Banpo-myeon, Sangsin-ri, Mt. Gyeryongsan, 21 v 2000, MS Kim, near stream. Gangwon Prov.: 1 ex., Hongcheon-gun, Naechon-myeon, Mt. Baekamsan, Garyeong fall, 25 v–20 vi 2002, KJ Ahn, SJ Park, JS Park, FIT; 2 exx., Hongcheon-gun, Nae-myeon, Mt. Gyebangsan, Unduryeong, N37° 42.49.9′ E128° 26.40.3′, 1100 m, 11 v 2007, TK Kim, YH Kim, fungus on log; 5 exx., Injegun, Mt. Jeombongsan, Gombaeryeong, 23–30 viii 1999, US Hwang, bait trap; 1 ex., Jeongseon-gun, Gohan-eup, Mt. Hambaeksan, 13 vii 1999, US Hwang, mushroom; 2 exx., Mt. Seoraksan, 23 viii 1996, T. Pierre, mushroom; 21 exx., Pyeongchang-gun, Cheondong-ri, Mt. Sambangsan, 13 vii–15 viii 2001, KJ Ahn, SJ Park, CW Shin, FIT in Pinus forest; 67 exx., Pyeongchang-gun, Jinbu-myeon, Dongsan-ri, Mt. Odaesan, Sangwonsa, 30 iv–4 vi 2001, KJ Ahn, SJ Park, MS Kim, MJ Jeon, FIT; 161 exx., same data as former except for ‘ 4 vi–22 vi 2001 ’; 9 exx., same data as former except for ‘ 18 viii 2000, MH Kim, entirely rotten mushroom (Boletaceae)’; 5 exx., same data as former except for ‘ 22 viii 2000, KJ Ahn, JH Ahn’; 152 exx., same data as former except for ‘ 22 vi–16 viii 2001, SJ Park, CW Shin, FIT’; 15 exx., same data as former except for ‘ 16 viii–15 ix 2001 ’; 5 exx., same data as former except for ‘ 15 ix–14 xi 2001, KJ Ahn, CW Shin, FIT’; 9 exx., same data as former except for ‘ 21 iv–18 v 2002, SJ Park, CW Shin, FIT’; 17 exx., same data as former except for ‘ 18 v–23 vi 2002, SJ Park, JS Park, FIT’; 2 exx., same data as former except for ‘ 23 vi 2002, SJ Park, JS Park, mushroom’; 2 exx., same data as former except for ‘ 13 vii 2004, SM Choi, mushroom’; 6 exx., same data as former except for ‘ 18 vi 2004, SJ Park, FIT’; 27 exx., same data as former except for ‘ 18 vi–22 vii 2004, SJ Park, KM Yang, DH Lee, FIT’; 2 exx., same data as former except for ‘37°47′8.3″ E128°33′54.0″ 880 m, 10 ix 2009, TK Kim, YH Kim, leaf litter’; 17 exx., same data as former except for ‘ N37°47′3.4″ E128°33′44.6″ 930 m, 12 VI 2012, YH Kim, SG Lee, YG Ban, JC Lim, mushroom’; 2 exx., same data as former except for ‘Bukdaesa, 23 viii 2000, MH Kim, mushroom’; 2 exx., same data as former except for ‘Namdae jijangam, 12 ix 2007, HW Kim, YH Kim, mushroom’; 7 exx., Pyeongchang-gun, Jinbu-myeon, Mt. Odaesan, Woljeongsa, 22 viii–20 x 2000, KJ Ahn, FIT; 4 exx., Pyeongchang-gun, Mt. Odaesan, Jeokmyeolbogung, 7–9 vii 1998, KL You, HJ Lim, FIT; 1 ex., Pyeongchang-gun, Bangrim-myeon, Ungyo 2-ri, Mt. Baekdeoksan, 12 vii–16 viii 2001, KJ Ahn, SJ Park, CW Shin, FIT; 1 ex., Taebaek-si, Mt. Taebaeksan, Baekdansa, 16 vii 1999, US Hwang, HJ Kim, sifting; 1 ex., Yangyang-gun, Seo-myeon, Osaek-ri, Hangyeryeong, 16 viii 2000, MH Lim, mushroom; 3 exx., Yangyang-gun, Seo-myeon, Osaek-ri, Mt. Seoraksan, Osaekyaksu, 31 vii–15 ix 2002, SJ Park, CW Shin, JS Park, FIT; 3 exx., same data as former except for ‘Osaekyaksu, 20 vii 2004, SJ Park, KM Yang, KJ Ahn, mushroom’; 2 exx., Yeongwol-gun, Suju-myeon, Mt. Baekdeoksan, Gwaneumsa, 13 vii–15 viii 2001, KJ Ahn, SJ Park, CW Shin, FIT. 2 exx., Yeongwol-gun, Yeongwol-eup, Mt. Taehwasan, 14 viii 2001, MH Kim, mushroom (Boletaceae). Jeonbuk Prov.: 3 exx., Jeongeup-si, Mt. Naejangsan, Naejangsa, Geumseon valley, 15–24 vi 2000, US Hwang, HJ Kim, FIT. Distribution. Korea (South). Remarks. This species is very similar to Atheta (Dimetrota) machonryongica, but can be distinguished by the characters provided in the key and the different shape and structure of aedeagus and spermatheca. Most specimens were collected by FIT and from mushroom in forest. Etymology. Named from Latin ovata meaning “ovate”, which refers to the shape of median lobe of aedeagus.Published as part of Lee, Seung-Gyu & Ahn, Kee-Jeong, 2022, Korean species of the Atheta Thomson subgenus Dimetrota Mulsant & Rey (Coleoptera: Staphylinidae: Aleocharinae) with a description of new species, pp. 401-416 in Zootaxa 5138 (4) on pages 406-411, DOI: 10.11646/zootaxa.5138.4.3, http://zenodo.org/record/657154
Liogluta rufescens Lee & Ahn, sp. nov.
No full textLiogluta rufescens Lee & Ahn, sp. nov. (Figs. 1 G, 8) Description. Length 2.0– 2.3 mm. Body (Fig. 1 G) parallel-sided; surface fairly glossy and densely pubescent, with microsculpture. Body reddish brown; head reddish black; elytra and legs paler, yellowish brown; abdominal segments V–VIII darker than other segments. Head. Subquadrate, approximately 1.0–1.1 times as wide as long, widest across eyes, slightly narrower than pronotum; eyes moderate in size and slightly prominent, about 1.0–1.2 times as long as temples; gular sutures moderately separated, diverged basally; infraorbital carina complete; cervical carina complete. Antennae (Fig. 8 A) long and slender; antennomeres 1–3 elongate, 1 longest, 2 slightly longer than 3, 4–10 subquadrate to slightly transverse, 11 longer than wide, about as long as preceding two combined. Mouthparts. Labrum transverse, emarginate in anterior margin, with ε-sensillum and about 9 macrosetae on each side of midline; epipharynx with several sensilla, including 2 lateral sensory rows on each side of midline; α-sensillum long and setaceous, about 2.0 times as long as ε-sensillum, β- and γ-sensilla very short. Mandibles asymmetrical, subtriangular, decurved and pointed apically, about 1.5–1.6 times as long as basal width; minute denticles present in molar region; right one with small internal tooth, internal margin slightly serrulate; prostheca developed, composited three portions. Galea and lacinia of maxilla long and slender; lacinia composited seven spines in distal comb region, contiguous with two isolated spines; maxillary palpus elongate, with pubescence and long setae; palpomere 1 smallest, 2 about 2.5–2.7 times as long as wide, 3 slightly longer than 2, about 2.4–2.6 times as long as wide, 4 digitiform, filamentous sensilla not reaching to basal half. Labium with ligula elongate, divided into 2 lobes in basal half; prementum with two medial setae widely separated; two basal pores moderately separated, about 2.0 times width of basal pore; several medial pseudopores, 1 setal pore and 2 real pores present on each side of midline; labial palpus with many setulae; palpomere 1 largest, about 1.5–1.7 times as long as wide, γ-setula contiguous with b-seta, 2 shortest, about 1.2–1.4 times as long as wide, 3 parallelsided and about as long as 1, about 3.0 times as long as wide. Mentum trapezoidal, anterior margin almost straight; v-seta relatively long, close to u-setae. Thorax. Pronotum slightly transverse, approximately 1.2–1.3 times as wide as long, widest in apical third; hypomera fully visible in lateral aspect. Metanotal scutum with 1 long seta and about 2 relatively short setae on each side of midline. Mesocoxal cavities moderately separated, mesoventral process pointed at apex, slightly longer than isthmus and metaventral process combined; isthmus about as long as metaventral process. Elytra longer and slightly wider than pronotum; elytron approximately 1.4–1.5 times as long as wide, pubescence directed posteriorly and postero-laterally; postero-lateral margin straight; hind wings fully developed, flabellum composed of about 6 long setose lobes. Legs. Slender and long, with pubescence and macrosetae; tibiae with different length of two spurs at apex; tarsal formula 4-5-5, meso- and metatarsomere 1–4 subequal in length; one empodial seta present, shorter than claw. Abdomen. Parallel-sided; surface fairly glossy and densely pubescent, with imbricate microsculpture; macrochaetal arrangement of tergites II–VI 01-13-13 -13-13; male tergite VIII (Fig. 8 B) with 4 macrosetae on each side of midline, broad process present in median region and posterior margin denticulate; male sternite VIII (Fig. 8 C) with 9 macrosetae on each side of midline, posterior margin slightly convex, with inconspicuous marginal setae; posterior margin of female tergite VIII subtruncate; posterior margin of female sternite VIII slightly emarginate, with conspicuous and long marginal setae, minute setae in median region. Aedeagus. Median lobe (Figs. 8 D–E) narrowly ovate and widest in basal fourth, apical process elongate and parallel-sided, convergent at apex in ventral aspect; internal sac developed. Apical lobe of paramerites (Fig. 8 F) with four setae; a-seta longest, c- and d-setae shorter than b-seta, close together and positioned apically. Type material. Holotype, ♂, labeled as follows: ‘ KOREA: Seoul, Dobong-gu, Mt. Bukhansan, 24 III 1988, Y. S. Kim, ex leaf litter; HOLOTYPE Liogluta rufescens Lee and Ahn 2016 ’. Desig. S.-G. Lee and K.-J. Ahn 2016. Paratypes, 3 exx. (one on slide), same data as Holotype. Distribution. Korea (South). Remarks. Adults are very similar to those of L. distans, but can be distinguished by the characters provided in the key and different shape and structure of aedeagus. Etymology. Named from the Latin rufescens meaning ‘‘red, reddish” which refers to the body color.Published as part of Lee, Seung-Gyu & Ahn, Kee-Jeong, 2016, A taxonomic review of Korean Liogluta Thomson (Coleoptera, Staphylinidae, Aleocharinae) with descriptions of three new species, pp. 285-303 in Zootaxa 4193 (2) on pages 299-301, DOI: 10.11646/zootaxa.4193.2.5, http://zenodo.org/record/16691
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