Andrzej Grzywacz

Publications

• 1.85

  Impact points

  Egg morphology of nine species of pollenia robineau-desvoidy, 1830 (diptera: Calliphoridae).

  Andrzej Grzywacz, Krzysztof Szpila, Thomas Pape

  Microscopy research and technique. 02/2012;

  Egg morphology of nine species of the cluster fly genus Pollenia Robineau-Desvoidy was studied with scanning electron microscopy. Funnel-shaped micropylar area, chorion covered with centrally depressed hexagons, well developed hatching pleats on the dorsal surface encompassing the median area were f... [more] Egg morphology of nine species of the cluster fly genus Pollenia Robineau-Desvoidy was studied with scanning electron microscopy. Funnel-shaped micropylar area, chorion covered with centrally depressed hexagons, well developed hatching pleats on the dorsal surface encompassing the median area were found in eggs of all species: P. amentaria (Scopoli), P. angustigena Wainwright, P. atramentaria (Meigen), P. labialis Robineau-Desvoidy, P. mayeri Jacentkovsky, P. pediculata Macquart, P. rudis (Fabricius), P. similis (Jacentkovsky), and P. vagabunda (Meigen). Untypical for Calliphoridae, a dual morphological structure of plastron-bearing area is described here for the first time. On the basis of our observations, all species studied share the presence of a plastron respiratory function on the entire surface between the hatching lines. Differences between species were found in the shape of the longitudinal hatching pleats and the proportion between 'island pattern' and 'hexagonal pattern' of their chorionic surface, and in the intensity of perforation of hexagons of the median area. Comparisons of Pollenia egg morphology with that of other representatives of Calliphoridae revealed its unique structure, allowing easy differentiation from other representatives of the family. Microsc. Res. Tech. 2012. © 2012 Wiley Periodicals, Inc.
• 2.09

  Impact points

  Larval morphology of the lesser housefly, Fannia canicularis.

  A Grzywacz, T Pape, K Szpila

  Medical and veterinary entomology. 06/2011; 26(1):70-82.

  The morphology of all larval instars of Fannia canicularis (Linnaeus) (Diptera: Fanniidae) is documented using a combination of light and scanning electron microscopy. The following structures are documented for all instars: antennal complex; maxillary palpus; facial mask; cephaloskeleton; ventral o... [more] The morphology of all larval instars of Fannia canicularis (Linnaeus) (Diptera: Fanniidae) is documented using a combination of light and scanning electron microscopy. The following structures are documented for all instars: antennal complex; maxillary palpus; facial mask; cephaloskeleton; ventral organ; anterior spiracle; Keilin's organ; posterior spiracle; fleshy processes, and anal pad. Structures reported for the first time for all instars include: two pairs of lateral prominences on the prothoracic segment; additional ventrolateral prominences on the second thoracic segment, and a papilla at the base of the posterior spiracle. Other structures reported for the first time are anterior spiracles in the first instar and a serrated tip on the mouthhook in the second instar. A trichoid sensillum on the posterior spiracular plate, representing a sensory organ otherwise unknown in the Calyptratae, is described in the second and third instars. Results are discussed and compared with existing knowledge on dipteran larval morphology.

• Phorbia haberlandti (SCHINER, 1865) (Diptera: Anthomyiidae) new to Polish fauna Anthomyiid fly species

  Cezary Bystrowski, Andrzej Grzywacz

  Wiadomości Entomologiczne. 01/2010; 29:117-121.

  The first record of Phorbia haberlandti (SCHINER, 1865) from Poland is given. One male was collected in Miechowska upland locality.

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• Egg morphology of Mydaea lateritia (Rondani, 1866) (Diptera: Muscidae)

  Andrzej Grzywacz, Thomas Pape

  Entomologica Fennica. 01/2010; 21:187-192.

  Several specimens of Mydaea lateritia (Rondani, 1866) were collected during studies of arthropod succession on pig carrions in western Poland. This is the first record of this species in Poland and the northernmost occurrence of the species. Scanning electron microscopy documentation of egg morpholo... [more] Several specimens of Mydaea lateritia (Rondani, 1866) were collected during studies of arthropod succession on pig carrions in western Poland. This is the first record of this species in Poland and the northernmost occurrence of the species. Scanning electron microscopy documentation of egg morphology of M. lateritia is presented for the first time. Hexagonal chorionic network, foliate hatching pleats, short lateral respiratory horns, dorsomedian flange and median area with smooth hexagonal network and craters are described. The egg could be classified as Mydaea-type with short respiratory horns.

• Graphomya minor ROBINEAU-DESVOIDY, 1830 (Diptera: Muscidae) a new species to the Polish fauna

  Andrzej Grzywacz

  Dipteron. 12/2009; 25:14-19.

  Information about taxonomic position of genus Graphomya ROBINEAU-DESVOIDY, 1830 and species Graphomya minor ROBINEAU-DESVOIDY, 1830 are presented. Recent authors consider distinguishing G. minor from species complex of G. maculata (SCOPOLI, 1763). G. minor in Poland recently was discovered on four l... [more] Information about taxonomic position of genus Graphomya ROBINEAU-DESVOIDY, 1830 and species Graphomya minor ROBINEAU-DESVOIDY, 1830 are presented. Recent authors consider distinguishing G. minor from species complex of G. maculata (SCOPOLI, 1763). G. minor in Poland recently was discovered on four localities (Taszewko, Turtul, Szelment, Zieleń) in Central and Northeastern Poland.

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• The occurrence of parasitic fly Angioneura cyrtoneurina (ZETTERSTEDT, 1859) (Diptera: Calliphoridae) in Poland

  Cezary Bystrowski, Andrzej Grzywacz

  Wiadomości Entomologiczne. 01/2009; 28:271-274.

  The first record of Angioneura cyrtoneurina (ZETTERSTEDT, 1859) from Poland is given. One specimen was collected in Biebrza National Park.

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• Macronychia dolini (VERVES & KHROKALO 2006) (Diptera: Sarcophagidae) - a new species to the Polish fauna

  Andrzej Grzywacz

  Dipteron. 12/2007; 23:18-20.

  Recent revision of genus Macronychia RONDANI 1859 reveals distinction between European and Asian populations of Macronychia kanoi and resulted in separation of M. kanoi on two species M. dolini and M. kanoi. Occurrence of M. dolini in Poland, after fifty years from catching first individual (identif... [more] Recent revision of genus Macronychia RONDANI 1859 reveals distinction between European and Asian populations of Macronychia kanoi and resulted in separation of M. kanoi on two species M. dolini and M. kanoi. Occurrence of M. dolini in Poland, after fifty years from catching first individual (identified in 1991 as M. kanoi) was confirmed in locality Wiersze in Kampinos National Park.

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