Parasitism of Andrena (Suandrena) savignyi Spinola (Hymenoptera: Andrenidae) by Stylops Kirby (St... more Parasitism of Andrena (Suandrena) savignyi Spinola (Hymenoptera: Andrenidae) by Stylops Kirby (Strepsiptera: Stylopidae) has been recorded only once, and from an individual collected in Egypt almost a century ago, with the parasite described as Stylops savignyi Hofeneder. The recent rediscovery of this Stylops from an individual of Andrena savignyi permits a reinterpretation of the species and its affinities among other Stylops. The bee was collected at flowers of Zilla spinosa (Turra) Prantl. (Brassicaceae) in Amariah, Riyadh, Kingdom of Saudi Arabia. Based on DNA barcode sequences from material sampled across Africa, Asia, and Europe, it is apparent that Stylops savignyi is conspecific with Stylops nassonowi Pierce, and we accordingly synonymize this name (syn. n.), with the latter representing the senior and valid name for the species. A differential diagnosis is provided for Stylops nassonowi and the morphology of the female is described, as well as the first instars.
... Adresář českých a slovenských zájemců o ahadlové blanokřídlé Jan BATELKA, Nad Vodovodem 16, ... more ... Adresář českých a slovenských zájemců o ahadlové blanokřídlé Jan BATELKA, Nad Vodovodem 16, CZ-10000 Praha 10, e ... cz, telefon: 384797713, 723649363, 235514766 (Praha), specializace: Sphecidae, Cerceris (celosvětově) Marek HALADA, M. Chlajna 5, CZ-37005 ...
... These records are in the standard form used in faunistic and taxonomic studies (example: MORA... more ... These records are in the standard form used in faunistic and taxonomic studies (example: MORAVIA mer., Pouzdřany, Pouzdřanská step steppe NNR (7065), 10.v.2001, 1 2 , P. Bogusch lgt. & coll., J. Macek det., J. Straka revid.). ... & coll., J. Macek det., J. Straka revid.). ...
Three novel antimicrobial peptides (AMPs), named panurgines (PNGs), were isolated from the venom ... more Three novel antimicrobial peptides (AMPs), named panurgines (PNGs), were isolated from the venom of the wild bee Panurgus calcaratus. The dodecapeptide of the sequence LNWGAILKHIIK-NH₂ (PNG-1) belongs to the category of α-helical amphipathic AMPs. The other two cyclic peptides containing 25 amino acid residues and two intramolecular disulfide bridges of the pattern Cys8-Cys23 and Cys11-Cys19 have almost identical sequence established as LDVKKIICVACKIXPNPACKKICPK-OH (X=K, PNG-K and X=R, PNG-R). All three peptides exhibited antimicrobial activity against Gram-positive bacteria and Gram-negative bacteria, antifungal activity, and low hemolytic activity against human erythrocytes. We prepared a series of PNG-1 analogs to study the effects of cationicity, amphipathicity, and hydrophobicity on the biological activity. Several of them exhibited improved antimicrobial potency, particularly those with increased net positive charge. The linear analogs of PNG-K and PNG-R having all Cys residues substituted by α-amino butyric acid were inactive, thus indicating the importance of disulfide bridges for the antimicrobial activity. However, the linear PNG-K with all four cysteine residues unpaired, exhibited antimicrobial activity. PNG-1 and its analogs induced a significant leakage of fluorescent dye entrapped in bacterial membrane-mimicking large unilamellar vesicles as well as in vesicles mimicking eukaryotic cell membrane. On the other hand, PNG-K and PNG-R exhibited dye-leakage activity only from vesicles mimicking bacterial cell membrane.
We reviewed nomenclature, biology, hosts, geographical distribution and compiled an identificatio... more We reviewed nomenclature, biology, hosts, geographical distribution and compiled an identification key for all 33 Sphecodes Latreille, 1804 species known from central Europe. The identification key is separated for females and males and include 204 figures (photographs) of identification characters as well as male genitalia of all species. Taxonomically difficult groups within the genus were critically studied and new characters, as well as corrected geographical distribution, are presented, i.e., the S. reticulatus group (S. alternatus Smith, 1853, S. crassanus Warncke, 1992 and S. reticulatus Thomson, 1870), S. croaticus group (S. croaticus Meyer, 1922, S. pseudofasciatus Bluthgen, 1925 and S. zangherii Noskiewicz, 1931) and S. miniatus group (S. marginatus Hagens, 1882, S. miniatus Hagens, 1882 and S. nomioidis Pesenko, 1979). The name S. nomioidis is used because it is the only available name for the taxon formerly identified as S. marginatus in Eastern Europe. Sphecodes capverd...
Parasitism of Andrena (Suandrena) savignyi Spinola (Hymenoptera: Andrenidae) by Stylops Kirby (St... more Parasitism of Andrena (Suandrena) savignyi Spinola (Hymenoptera: Andrenidae) by Stylops Kirby (Strepsiptera: Stylopidae) has been recorded only once, and from an individual collected in Egypt almost a century ago, with the parasite described as Stylops savignyi Hofeneder. The recent rediscovery of this Stylops from an individual of Andrena savignyi permits a reinterpretation of the species and its affinities among other Stylops. The bee was collected at flowers of Zilla spinosa (Turra) Prantl. (Brassicaceae) in Amariah, Riyadh, Kingdom of Saudi Arabia. Based on DNA barcode sequences from material sampled across Africa, Asia, and Europe, it is apparent that Stylops savignyi is conspecific with Stylops nassonowi Pierce, and we accordingly synonymize this name (syn. n.), with the latter representing the senior and valid name for the species. A differential diagnosis is provided for Stylops nassonowi and the morphology of the female is described, as well as the first instars.
... Adresář českých a slovenských zájemců o ahadlové blanokřídlé Jan BATELKA, Nad Vodovodem 16, ... more ... Adresář českých a slovenských zájemců o ahadlové blanokřídlé Jan BATELKA, Nad Vodovodem 16, CZ-10000 Praha 10, e ... cz, telefon: 384797713, 723649363, 235514766 (Praha), specializace: Sphecidae, Cerceris (celosvětově) Marek HALADA, M. Chlajna 5, CZ-37005 ...
... These records are in the standard form used in faunistic and taxonomic studies (example: MORA... more ... These records are in the standard form used in faunistic and taxonomic studies (example: MORAVIA mer., Pouzdřany, Pouzdřanská step steppe NNR (7065), 10.v.2001, 1 2 , P. Bogusch lgt. & coll., J. Macek det., J. Straka revid.). ... & coll., J. Macek det., J. Straka revid.). ...
Three novel antimicrobial peptides (AMPs), named panurgines (PNGs), were isolated from the venom ... more Three novel antimicrobial peptides (AMPs), named panurgines (PNGs), were isolated from the venom of the wild bee Panurgus calcaratus. The dodecapeptide of the sequence LNWGAILKHIIK-NH₂ (PNG-1) belongs to the category of α-helical amphipathic AMPs. The other two cyclic peptides containing 25 amino acid residues and two intramolecular disulfide bridges of the pattern Cys8-Cys23 and Cys11-Cys19 have almost identical sequence established as LDVKKIICVACKIXPNPACKKICPK-OH (X=K, PNG-K and X=R, PNG-R). All three peptides exhibited antimicrobial activity against Gram-positive bacteria and Gram-negative bacteria, antifungal activity, and low hemolytic activity against human erythrocytes. We prepared a series of PNG-1 analogs to study the effects of cationicity, amphipathicity, and hydrophobicity on the biological activity. Several of them exhibited improved antimicrobial potency, particularly those with increased net positive charge. The linear analogs of PNG-K and PNG-R having all Cys residues substituted by α-amino butyric acid were inactive, thus indicating the importance of disulfide bridges for the antimicrobial activity. However, the linear PNG-K with all four cysteine residues unpaired, exhibited antimicrobial activity. PNG-1 and its analogs induced a significant leakage of fluorescent dye entrapped in bacterial membrane-mimicking large unilamellar vesicles as well as in vesicles mimicking eukaryotic cell membrane. On the other hand, PNG-K and PNG-R exhibited dye-leakage activity only from vesicles mimicking bacterial cell membrane.
We reviewed nomenclature, biology, hosts, geographical distribution and compiled an identificatio... more We reviewed nomenclature, biology, hosts, geographical distribution and compiled an identification key for all 33 Sphecodes Latreille, 1804 species known from central Europe. The identification key is separated for females and males and include 204 figures (photographs) of identification characters as well as male genitalia of all species. Taxonomically difficult groups within the genus were critically studied and new characters, as well as corrected geographical distribution, are presented, i.e., the S. reticulatus group (S. alternatus Smith, 1853, S. crassanus Warncke, 1992 and S. reticulatus Thomson, 1870), S. croaticus group (S. croaticus Meyer, 1922, S. pseudofasciatus Bluthgen, 1925 and S. zangherii Noskiewicz, 1931) and S. miniatus group (S. marginatus Hagens, 1882, S. miniatus Hagens, 1882 and S. nomioidis Pesenko, 1979). The name S. nomioidis is used because it is the only available name for the taxon formerly identified as S. marginatus in Eastern Europe. Sphecodes capverd...
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