Morphology of the first instar larva of obligatory traumatic myiasis agents (Diptera: Calliphoridae, Sarcophagidae) Author Szpila, K. Chair of Ecology and Biogeography, Faculty of Biology and Environmental Protection, Nicolaus Copernicus University, Lwowska 1, Toruń 87 - 100, Poland szpila@umk.pl Author Hall, M. J. R. Department of Life Sciences, Natural History Museum, Cromwell Road, London SW 7 5 BD, UK M.Hall@nhm.ac.uk Author Wardhana, A. H. Department of Parasitology, Indonesian Research Centre for Veterinary Science, JL. Martadinata 30, Bogor, West Java, Indonesia Wardhana24id@yahoo.com Author Pape, T. Natural History Museum of Denmark, University of Copenhagen, Universitetsparken 15, Copenhagen 2100, Denmark TPape@snm.ku.dk text Parasitology Research 2014 1629 2014-02-20 113 5 1629 1640 http://dx.doi.org/10.1007/s00436-014-3808-x journal article 298374 10.1007/s00436-014-3808-x b6b459b7-7066-438f-8457-cb89f00126a6 1432-1955 11376513 Wohlfahrtia magnifica (Schiner, 1862) ( Figs. 4a–h ; 5a–e ; 6e, f ; and 7c ) Pseudocephalon: Antennal complex with slightly conical dome, height of basal ring greater than length of antennal dome ( Fig. 4c ); maxillary palpus encircled by several cuticular folds, central cluster of sensilla with three sensilla coeloconica and three sensilla basiconica (sb1–sb3, sc1–sc3) ( Fig. 4d ), few other small sensilla are situated close to sb1, two additional sensilla coeloconica (ns1–ns2) of typical appearance arranged laterodorsally on the surface of the maxillary palpus ( Fig. 4d ); ventral organ small, situated lateral to the functional mouth opening and level with the adjacent integument ( Fig. 4b, e ); oral ridges terminate medio-laterally on pseudocephalon ( Fig. 4a ). Cephaloskeleton: mouthhooks large and strongly sclerotised, anterior part of each mouthhook strongly curved downward and with single pointed tip, basal part with well visible lateral arm, tips of teeth orientated ventrally ( Figs. 4a, b and 6e ); labrum very large and long with massive basal part, anterior part of labrum strongly curved downward appearing to represent a third, middle mouthhook ( Figs. 4a, b and 6e ); intermediate sclerite short, partly hidden behind parastomal bar in lateral view but clearly shifted toward anterior end of body under base of labrum ( Fig. 6e, f ); parastomal bars short and broad ( Fig. 6e, f ); vertical plate wide, about three times wider than width of ventral cornua; dorsal cornua longer than ventral cornua, but both cornua of similar width ( Fig. 6e ); dorsal bridge present. Thoracic segments: anterior spinose band on t1 broad, with spines arranged in 5–6 rows dorsally and 9–11 rows ventrally, spines very large more conical than in Chrysomya bezziana , elongated and slightly curved, size of spines decreasing gradually towards the posterior end of body ( Fig. 4a, b ); anterior spinose bands of t2 and t3 with homogeneous, strongly sclerotised, elongated spines. Abdominal segments: anterior spinose bands complete on a1–a5, on a6 band narrowly interrupted dorsally, on a7 the band incomplete, restricted to ventral surface and few spines on dorso-lateral surfaces, each anterior spinose band ventrally with a transverse lenticular gap without spines ( Figs. 5b and 7c ); posterior spinose band on a1– a6 band present as a single row of ventral spines with few additional spines ventro-laterally, band on a7 complete with a single row of spines on lateral surfaces and with 2–3 rows ventrally and dorsally; lateral creeping welts with strong spines directed posteriorly, only the most posterior lateral creeping welt without spines. Anal division: Anal pads rounded, small and slightly protruding ( Fig. 5e ), anal tuft with several spines dorsally, readily apparent in light microscope; hair-like spines around spiracular cavity present but sparse ( Fig. 5d ); posterior spiracles hidden in spiracular cavity ( Fig. 5d ); p1, p3 and p5 developed as large cones with a long sensillum on the extremity resembling a large sensillum coeloconicum ( Fig. 5c, d ), p7 with sensillum on small protuberance, p2, p4 and p6 developed as sensilla situated level with adjacent integument.