Philonthus atratus (Gravenhorst)

Pietrykowska-Tudruj, Ewa & Staniec, Bernard, 2011, The morphology of the pupae of six species of Philonthina (Coleoptera, Staphylinidae, Staphylinini) with taxonomic remarks, Zootaxa 2865, pp. 53-67 : 58

publication ID

https://doi.org/ 10.5281/zenodo.202575

DOI

http://doi.org/10.5281/zenodo.6183489

persistent identifier

https://treatment.plazi.org/id/7E75879E-FF91-FFE6-6ACC-03B70C1FFAFE

treatment provided by

Plazi

scientific name

Philonthus atratus (Gravenhorst)
status

 

Philonthus atratus (Gravenhorst)  

( Figs 7 –9 View FIGURES 7 – 12 , 21–25 View FIGURES 19 – 40 , 45–46, 54, 59, 65)

Body length: 5.71–6.23 mm (mean 6.00 mm); body width: 2.41–2.50 mm (mean 2.44 mm); head width: 1.38–1.43 mm (mean 1.40 mm); pronotum width: 1.67–1.74 mm (mean 1.70 mm), about as broad as long; body rather slender and moderately sclerotized. Head about 1.3 x as long as wide ( Figs 7–9 View FIGURES 7 – 12 ). Antennae almost reaching to middle of elytra length ( Fig. 8 View FIGURES 7 – 12 ). Anterior margin of pronotum with 13–14 or 16 projections (7 /6, 7/7, 8/ 8 projections on sides in individuals). The wings protruding on the posterior margin of 1 st (morphologically 3 rd) clearly visible, abdominal segment as in G. o s s e t i c u s and P. carbonarius   ( Figs 4, 5 View FIGURES 1 – 6 , 7, 8, 10, 11 View FIGURES 7 – 12 ). Each fore, middle, and hind tibiae with 2 –4, 9 and 5 protuberances respectively. The length of hind legs as in P. carbonarius   ( Figs 7, 8, 10, 11 View FIGURES 7 – 12 ). Abdomen moderately and gradually widened from segment II to segment IV and narrowed to the terminal segment of the body ( Fig. 9 View FIGURES 7 – 12 ). Abdominal segments III–VIII, or only VII and VIII, each with a pair of setiform projections on the sides ( Figs 21–25 View FIGURES 19 – 40 ). If abdominal segments III–VI bearing setiform projections, then those at least 4 x shorter than the appropriate segment ( Figs 23, 25 View FIGURES 19 – 40 ). Abdominal segments VII about 1.2–1.3 times longer than projections ( Fig. 21 View FIGURES 19 – 40 ); abdominal segments VIII distinctly shorter than projection ( Fig. 22 View FIGURES 19 – 40 ); projections with sparse, sharp cuticular processes ( Fig. 24 View FIGURES 19 – 40 ). Female pupa with two well-developed ventral, elongated, straight prolongations (Figs 45, 45A) with numerous tiny cuticular processes (Fig. 45 A); male pupa with sternite IX as in Fig. 46; terminal prolongation similar in structure to G. osseticus   (Figs 43, 43B). The first pair of functional spiracles elongated moderately ( Figs 54, 59 View FIGURES 52 – 70 ); atrophied spiracles as in Fig. 65 View FIGURES 52 – 70 .