3,299 research outputs found
Dapsa nigripennis Esser 2019
No full text<i>Dapsa nigripennis</i> REITTER, 1879 stat.rev. (Abb. 1, 3) <p>M a t e r i a l u n t e r s u c h t: Türkei: Prov. Sinop [ZMB, cES].</p> <p> Das Taxon <i>Dapsa nigripennis</i> REITTER, 1879 wurde von AUDISIO & DE BIASE (1996) mit <i>Dapsa limbata</i> MOTSCHULSKY, 1835 synonymisiert (Abb. 2, 4). Die Grundlage dafür waren ein als <i>limbata</i> MOTSCHULSKY gedeutetes Weibchen aus der nordwestlichen Türkei (Umg. Bolu) und ein weiteres Weibchen (der Typus von <i>D. nigripennis</i> REITTER) aus der Umgebung der heute Gjumri genannten armenischen Stadt (ehemals Alexanderhilf, Alexandroupolis oder Leninakan).</p> <p>Aufgrund einer ähnlich geringen Anzahl von Tieren kamen auch SEMENOV & NIKITSKY (2001) zu keinem anderen Schluss und behielten die Synonymie bei.</p> <p> Da das typische Material beider Arten weiterhin als verschollen gelten muss (<i>D. limbata</i> MOTSCHULSKY) oder nur noch aus einem einzelnen Weibchen besteht (<i>D. nigripennis</i> REITTER - REITTER (1879) nannte allerdings zwei Exemplare), ist auch die hier vorgenommene Revalidierung nicht gänzlich frei von Zweifeln. Doch der Zugriff auf Material (inkl. männlicher Tiere) aus der Nähe der beiden Typenfundorte lässt das Vorhandensein zweier Arten zweifelsfrei erkennen und eine Anwendung auf die beiden vorhandenen Namen erscheint als die naheliegende Lösung.</p> <p> Der Typenfundort von <i>D</i>. <i>limbata</i> wird von MOTSCHULSKY (1835) mit "sur les montagnes d'Akhalzik en Arménie " angegeben. Die Region liegt heute im Grenzgebiet von Georgien (Provinzen Adscharien und Samzche-Dschawachetien) und der Türkei (Provinzen Artvin, Ardahan und Ezurum). Aktuelles Material liegt aus der weiter westlich gelegenen türkischen Provinz Kastmonu und der weiter östlich gelegenen armenischen Provinz Kotajk vor.</p> <p> Von <i>D</i>. <i>nigripennis</i> REITTER liegt der Typenfundort in der Nähe des heutigen Gjumri in Armenien. Jüngeres Material wurde in der türkischen Provinz Sinop gesammelt.</p> <p> Demnach scheinen beide Arten von Armenien und Georgien entlang der türkischen Schwarzmeerküste nach Westen verbreitet zu sein. AUDISIO & DE BIASE (1996) geben noch die türkische Provinz Bolu an, von wo ihnen ein Weibchen vorlag. Es wäre aber empfehlenswert, männliche Exemplare (so vorhanden) aus dem Nordwesten der Türkei auf die Artgleichheit mit <i>D. limbata</i> MOTSCHULSKY oder <i>nigripennis</i> REITTER zu prüfen, da in anderen Fällen die kaukasischen Arten dort bereits durch verwandte Arten ersetzt werden (ESSER 2017, ESSER 2019).</p> <p>Im Grunde sind beide Arten gut unterscheidbar, v. a. die Männchen mittels Aedoeagus. Bei den Weibchen wie bei Männchen ohne Genitalpräparat bietet der Fühlerbau eine gute Unterscheidungsmöglichkeit (Tab. 1).</p>Published as part of <i>Esser, Jens, 2019, Anmerkungen zur Gattung Dapsa L, 1829 (Coleoptera, Endomychidae), pp. 907-914 in Linzer biologische Beiträge 51 (2)</i> on page 908, DOI: <a href="http://zenodo.org/record/3741910">10.5281/zenodo.3741910</a>
Cryptophagus grahammontanus Esser 2018, nov.sp.
No full textCryptophagus grahammontanus nov.sp. T y p e m a t e r i a l: Holotype ♂: " Arizona: Graham Mts., May 18 1969, K. Stephan leg [FSCA]. Paratypes: 2♂♂, 1♀ with the same data as the holotype [FSCA, cES]; 1♀: " Arizona Graham Mts., 9200 ft., April 25 1971, K. Stephan leg [FSCA]." E t y m o l o g y: Named after the Graham Mountains in Arizona (USA) where the types were collected. D e s c r i p t i o n: Male, 1.8 mm, hind wings absent, humeral callus nearly absent, with small tooth. Reddish-brown with legs and antennae paler, eyes of normal size. Punctation fine and moderately dense on head and pronotum, less dense on elytra (basal third). Covered with yellowish and decumbent pubescence. Pronotum hardly wider as long. Anterior callosity short but prominent, forming a hook. Lateral tooth in the middle, lateral margin concave before the tooth and convex behind the tooth. Rim of the margin indistinct before and distinct behind the tooth. Elytra strongly elongated. Legs more stout, antennae slender without any features, segment IX and X slightly transverse. C o m m e n t: Typical species which is similar to C. stephani (fig. 7) and very similar to C. bussi ESSER, 2017 (fig. 6). C. stephani has a strongly elongated pronotum, C. bussi a less elongated pronotum which is more elongated as in grahammontanus with more convex posterior margin. Legs and antennae are in grahammontanus more slender than in bussi. Cryptophagus bussi was described from the Magdalena Mountains in New Mexico. So far known, the species seems to be restricted to this mountain range. It is obvious, that C. grahammontanus is also restricted to mountain range of the Graham Mountains.Published as part of Esser, Jens, 2018, New Cryptophagus H, 1792 (Coleoptera: Cryptophagidae) from Arizona (United States of America), pp. 1067-1071 in Linzer biologische Beiträge 50 (2) on page 1069, DOI: 10.5281/zenodo.377644
Mnioticus scotti Esser & R, 2019, nom.nov.
No full textMnioticus scotti nom.nov. (fig. 5) T y p e m a t e r i a l: Holotype [RMCA]. A d d i t i o n a l m a t e r i a l Dem. Rep. Congo: Congo: P. N. A., 19.VII.1963, RP. M.-J. Célis 2150 / Secteur Tshiaberimu, so. Tshiaberimu, 3117m, bruyères, mousses [RMCA].Published as part of Esser, Jens & R, Afrotropical, 2019, Revision of Mnioticus COOMBS & WOODROFFE, 1962 (Coleoptera, Cryptophagidae), pp. 915-928 in Linzer biologische Beiträge 51 (2) on page 922, DOI: 10.5281/zenodo.527750
Countering the Risks of Vocationalisation in Master’s Programmes in International Development (article pre-print)
No full textPre-print of article:
Denskus, T., & Esser, D. E. (2015). Countering the risks of vocationalisation in master's programmes in international development. Learning and Teaching, 8(2), 72-85. doi:http://dx.doi.org/10.3167/latiss.2015.08020
Sinopanamomus Esser 2019, nov.gen.
No full textSinopanamomus nov.gen. (fig. 1-4) T y p e s s p e c i e s: Sinopanamomus yunnanensis nov.sp. E t y o m o l o g y: Due the relationship with Panamomus GORHAM, 1873 and its origin from China. D e s c r i p t i o n: Body small, around 2.6 mm, blackish to reddish brown, membranous wings absent. Surface shiny with puncture very fine and sparse. Sparsely covered with pale, curved hairs. Terminal labial palpomere longer than penultimate one, fusiform. Legs and antennae stout. Eyes small and hemispherical. Pronotum convex, sides slightly rounded in the middle, strongly forwards and straight to concave backwards. Posteriorly with to deep triangular foveae. Side margin small bordered, with a furrow along the side margin, which is widened in the posterior part. Elytra convex and oviform. Humeral callus on elytra indistinct, margin with a prominent tooth. Anterior tarsomeres in male widened. C o m m e n t: Similar to Panamomus GORHAM, 1873 but differs by body, legs and antennae more stout, terminal labial palpomere fusiform, pronotum with a furrow besides the margin.Published as part of Esser, Jens, 2019, Sinopanamomus yunnanensis nov. gen. & nov. sp., a new genus and species of Leiestinae (Coleoptera, Endomychidae) from China, pp. 929-932 in Linzer biologische Beiträge 51 (2) on pages 929-930, DOI: 10.5281/zenodo.374192
Cryptophagus schuelkei Esser & R 2017, nov.sp.
No full textCryptophagus schuelkei nov.sp. T y p e m a t e r i a l: Holotype 3: " China, N-Yunnan (C03-12), Zhongdian Co.: pass 28 km ESE Zhongdian, 3700-3750 m, 27°43.9’N; 98°58.2’E, leg. Schülke, 22.8.2003 " [cES]. Paratype: 1♀ with the same data than the holotype [cES]. E t y m o l o g y: The specific epithet points on Michael Schülke (Berlin), who collected all specimens of this species. D e s c r i p t i o n: Male, hind wings absent, 2 mm. Reddish-brown, shining (fig. 3). Eyes small but convex with only a small number of ommatidia. Pronotum 1,5 times broader than long, broadest before the middle tooth, margin strongly concave between anterior angles (callosities) and convex between middle tooth and posterior angles. Margin is forming a transparent lamella between posterior angles and the middle tooth, the outer margin is convex, the inner margin straight. Anterior callosities small, forming a hook-shaped tooth oriented backwards. Front margin straight, hind margin slightly rounded. Pronotum strongly and moderately dense punctate, surface convex, margin not depressed. Elytra elongate, oviform, with moderately long and more or less decumbent hairs. No humeral callus developed, with a longish callosity next to the suture. Elytra in the anterior third strongly but less dense punctate than on pronotum. Legs stout, tarsi five-segmented, posterior tarsi four-segmented (only in male), anterior tarsomeres 1-4 moderately widened (only in male). Antennae stout, club well developed, segments 1, 2, 4-8 moniliform, segment 1 and 2 broader than the remaining, segment 3 longer than broad, 9 and 10 transverse, 10 broader than 9, segment 11 oval and asymmetric. Parameres as in fig. 4 C o m m e n t Resembles to Cryptophagus puetzi nov.sp. (fig. 1, 2) and is distinguishable by the shape of pronotum, parameres and distribution (Sichuan). C. schuelkei nov.sp. is also more shining. Cryptophagus hongguanus ESSER, 2017 (ESSER 2017b) differs in shape of pronotum and parameres more rounded. It is known from China, province Qinghai.Published as part of Esser, Jens & R, Palaearctic, 2017, Two new species of Cryptophagus HERBST, 1792 (Coleoptera: Cryptophagidae) from China, pp. 1129-1132 in Linzer biologische Beiträge 49 (2) on pages 1131-1132, DOI: 10.5281/zenodo.518319
Cryptophagus stephani Esser 2018, nov.sp.
No full text<i>Cryptophagus stephani</i> nov.sp. <p>T y p e m a t e r i a l: Holotype ♀: " Arizona: St. Catalina Mts., elev. 8600 ft, May 31 1969 " [FSCA]. Paratype: 1♀ with the same data as the holotype [FSCA].</p> <p>E t y m o l o g y: Named to the honour of K. STEPHAN, who collected the types and many other interesting species.</p> <p>D e s c r i p t i o n: Female, 2 mm, hind wings absent, humeral callus absent, with distinct tooth. Reddish-brown with legs and antennae paler, eyes of normal size. Punctation fine and moderately dense on head and pronotum, somewhat stronger and denser on elytra (basal third). Covered with yellowish and decumbent pubescence. Pronotum elongated, nearly long as wide. Anterior callosity short but prominent, forming a strong hook. Lateral tooth in the middle, lateral margin concave before the tooth and concave behind the tooth. Rim of the margin indistinct before and distinct behind the tooth. Elytra strongly elongated. Legs more stout, antennae slender without any features, segment IX and X slightly transverse.</p> <p> C o m m e n t: Very typical species with elongated body and strongly elongated pronotum. General shape resembles to <i>C</i>. <i>grahammontanus</i> nov.sp. (fig. 5) but literally the pronotum is more elongated in <i>C. stephani</i> nov.sp.</p>Published as part of <i>Esser, Jens, 2018, New Cryptophagus H, 1792 (Coleoptera: Cryptophagidae) from Arizona (United States of America), pp. 1067-1071 in Linzer biologische Beiträge 50 (2)</i> on page 1070, DOI: <a href="http://zenodo.org/record/3776442">10.5281/zenodo.3776442</a>
Atomaria bisulcata Esser 2018, nov.sp.
No full textAtomaria bisulcata nov.sp. T y p e m a t e r i a l: Holotype ♂: " Iran, Azarbayian-e Sharqi, Osku: Amghan, 2100 m (Kuh-e Sahand), N37°49‘38‘‘ E46°16‘15‘‘, 08.08.2005, leg. Frisch & Serri [MFNB]. Paratypes: 2 ex. with the same data as the holotype [MFNB, cES]. E t y m o l o g y: The Latin word bisulcata means split due to the parameres which has a deep split. D e s c r i p t i o n: Male, 1,4 mm, hindwings absent, uniformly dark reddish-brown. Body stout and convex, with coarse and dense puncture, the distance of puncture on pronotum (disc) and elytra (anterior third) like the diameter. Covered with short yellowish pubescence (fig. 1). Anterior part of margin of the pronotum not visible from above, medium part of the basis moderately depressed. Sides moderately angled before the middle. Posterior angles nearly rectangular. Elytra oviform, puncture in the posterior third less coarse. Antennae slender, club 3-segmented but not well developed. Segments 9, 10 and 11 elongated, segments 3 to 8 decreasing in length but increasing in width. Segment longer and wider than 3, segment 1 longer and wider than 2 and slightly curved. Legs slender, all tarsi 5-segmented, anterior tarsi in male inconspicuous widened. Aedoeagus with a paramere with a deep split (fig. 2). C o m m e n t: More or less similar to a few species like A. fuscata (SCHÖNHERR, 1808) or A. gibbula ERICHSON, 1846 but separated by the parameres (fig. 2). D i s t r i b u t i o n: Currently known from the type locality in Iran.Published as part of Esser, Jens, 2018, Atomaria bisulcata nov. sp. (Cryptophagidae) from Iran, pp. 235-237 in Linzer biologische Beiträge 50 (1) on pages 235-236, DOI: 10.5281/zenodo.398541
Cryptophagus puetzi Esser & R 2017, nov.sp.
No full text<i>Cryptophagus puetzi</i> nov.sp. <p>T y p e m a t e r i a l: Holotype 3: " China, Prov. Sichuan, Ganzi Tibetian Auton. Pref., Batang Co., Shaluli Shan, Abies-Forest, 55 km NE Batang, 30.07.68N, 100.03.77E, 4200 m, 3.VII.1999, leg. A. Pütz " [cPÜ].</p> <p>Paratypes: 833, 2 ♀♀: " China, Prov. Sichuan, Ganzi Tibetian Auton. Pref., Yajiang Co., Shaluli Shan, E Pass, 15 km W Yajiang, 4300 m, Rhododendron sift, 30.00.24N, 100.51.63E, 2.VII.1999, leg. A. Pütz " [cPÜ, cES]; 13, 1♀: " China, Prov. Sichuan, Ganzi Tibetian Auton. Pref., Litang Co., Shaluli Shan, Abies-Forest-Rest, 25 km NW Litang, 30.17.23 N, 90.30.97 E, 4300 m, 1.VII.1999, leg. A. Pütz " [cPÜ].</p> <p>E t y m o l o g y: The specific epithet points on Andreas Pütz (Eisenhüttenstadt), who collected all specimens of this species.</p> <p>D e s c r i p t i o n: Male, hind wings absent, 2 mm. Reddish-brown, moderately shining (fig. 1). Eyes small but convex with only a small number of ommatidia. Pronotum 1,4 times broader than long, broadest before the middle tooth, margin slightly concave between anterior angles (callosities) and convex between middle tooth and posterior angles. Margin is forming a transparent lamella between posterior angles and the middle tooth, the outer margin is convex, the inner margin straight. Anterior callosities small, forming a small tooth oriented backwards. Front margin straight, hind margin slightly rounded. Pronotum strongly and moderately dense punctate, surface convex, margin not depressed. Elytra elongate, oviform, with moderately long and decumbent hairs. No humeral callus developed, with a longish callosity next to the suture. Elytra in the anterior third strongly but less dense punctate than on pronotum. Legs stout, tarsi five-segmented, posterior tarsi four-segmented (only in male), anterior tarsomeres 1-4 moderately widened (only in male). Antennae stout, club well developed, segments 1, 2, 4-8 moniliform, segment 1 and 2 broader than the remaining, segment 3 longer than broad, 9 and 10 moderately transverse, 10 broader than 9, segment 11 oval and asymmetric. Parameres as in fig. 2.</p> <p> C o m m e n t Resembles to <i>Cryptophagus schuelkei</i> nov.sp. (fig. 3, 4) and is distinguishable by the shape of pronotum, parameres and distribution (Yunnan). <i>C. puetzi</i> nov.sp. is also less shining. <i>Cryptophagus hongguanus</i> ESSER, 2017 (ESSER 2017b) differs in shape of pronotum and parameres more rounded. It is known from China, province Qinghai.</p>Published as part of <i>Esser, Jens & R, Palaearctic, 2017, Two new species of Cryptophagus HERBST, 1792 (Coleoptera: Cryptophagidae) from China, pp. 1129-1132 in Linzer biologische Beiträge 49 (2)</i> on pages 1129-1131, DOI: <a href="http://zenodo.org/record/5183192">10.5281/zenodo.5183192</a>
Micrambe zhejiangensis Esser 2017, nov.sp.
No full textMicrambe zhejiangensis nov.sp. T y p e m a t e r i a l: Holotype 3: " China: Zhejiang (CH07-36), West Tianmu shan N. R., way to peak of immortals, 30°20’34’’N / 119°25’51’’E, 110-1200 m, prim. mixed forest, litter, moos sifted, 15.VI.2007. M. Schülke " [ZMB]. Paratypes: 43, 7♀ with the same data as the holotype [ZMB, cES]. E t y m o l o g y: The specific epithet points on the province Zhejiang in China, where the type material were found. D e s c r i p t i o n: Male, wings fully developed, 1,9 mm. Reddish-brown, elytra with a rounded, not well-defined black spot in the medium part and a little black spot on the apex of each elytron (fig. 4). Eyes conical. Pronotum 1,5 times broader than long, broadest between the anterior angles, strongly punctate, margin with strong teeth, surface very convex, sloping towards the margin, anterior callosities strongly prominent, margin nearly straight. Elytra stout, hairs uniform semi-erected, shoulders well developed, strongly punctate on the anterior part, less to the posterior part. Legs slender, tarsi with five segments, posterior tarsi with four segments (only in male), anterior tarsi segments 1-4 moderately widened (only in male). Antennae slender, club well developed, segments 3-7 longer than broad and equal, segment 8 shorter but not moniliform, segment 9 and 10 strong conical, segment 11 long as broad, rounded and conical. Parameres as in fig. 8. C o m m e n t Distinguished from M. bimaculata and M. sinensis by its strong punctuation (pronotum, elytra), Parameres strongly triangular (fig. 8). Very similar to M. yunnanensis, distinguished by the prominent callosity and the parameres. Also similar to M. micramboides (REITTER, 1874), which is strongly stout, with a pronotum broader and with rounded margins (fig. 11). Distinguished from M. schuelkei nov.sp. by its rounded, not well-defined spot. D i s t r i b u t i o n: So far known in China, province Zhejiang. Figs 1-2: (1) Micrambe bimaculata (PANZER, 1798), Ukraine, male; (2) Micrambe sinensis GROUVELLE, 1910 stat. rev. from China (Shanxi), male. Figs 5-8: Parameres of (5) Micrambe bimaculata (PANZER, 1798); (6) M. sinensis GROUVELLE, 1910; (7) M. yunnanensis nov.sp.; (8) M. zhejiangensis nov.sp.Published as part of Esser, Jens, 2017, On Micrambe THOMSON, 1863 of China (Coleoptera: Cryptophagidae), pp. 387-394 in Linzer biologische Beiträge 49 (1) on pages 389-391, DOI: 10.5281/zenodo.535706
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