Cryptophagus jakowlewi

Esser, Eitter Jens, 2018, Notes on taxonomy and distribution of Cryptophagus jakowlewi R, 1888 (Coleoptera: Cryptophagidae) with remarks on further species, Linzer biologische Beiträge 50 (1), pp. 245-253 : 247-248

Distribution data for Cryptophagus jakowlewi REITTER, 1888 from Europe

Cryptophagus jakowlewi REITTER, 1888

Finnland: Tb: Jyväskylä, Ylistönrinne, 3.10.2001, leg. Jaakko Mattila [cMA, cES]; Ta: Kuhmoinen,

30.05.1974, 14.07.1983, 11.10.1987, leg. Eero Helve [cHE, cES]; Lkem: Sodankylä, 05.07.1989, leg. Eero Helve [cHE, cES].

Sweden: LyL, Gravsjön, 19.VI.-28.VII.1998, leg. Per Löfgren [cLU], Arby (Vassmolösa, Kalmar), leg. Geijer [cGE].

Notes on identifying Cryptophagus jakowlewi REITTER, 1888

Cryptophagus jakowlewi REITTER, 1888 is quite similar to Cryptophagus archangelicus J.R. SAHLBERG, 1926 (9, 12, 18) and C. corticinus THOMSON, 1867 (fig. 8, 10). Most specimens of Cryptophagus jakowlewi have both a dark head and pronotum (fig. 7). Males of C. jakowlewi are easily distinguishable by its parameres ( fig. 11 ). But a few specimens are paler and more similar to C. corticinus.

C. bidentatus MÄKLIN, 1853 ( fig. 3 , 14 ) and C. confertus CASEY, 1900 ( fig. 5 , 13 ) are often also very similar but have different parameres. They resemble to C. quadridentatus MANNERHEIM, 1843 and C. dentatus (HERBST, 1793)

C. reflexus REY, 1889 and C. scanicus (LINNAEUS, 1758) are well-defined species.

Figures

Fig. 10-12: Parameres of (10) Cryptophagus corticinus THOMSON, 1867 (11) Cryptophagus jakowlewi REITTER, 1888, (12) Cryptophagus archangelicus J.R. SAHLBERG, 1926, syntypus. Fig. 13-14: Parameres of (13) Cryptophagus confertus CASEY, 1900, (14) Cryptophagus bidentatus MÄKLIN, 1853. Fig. 15-16: Parameres of (15) Cryptophagus reflexus REY, 1889, (16) Cryptophagus scanicus (LINNAEUS, 1758).

Fig. 1-2: Holotypes of (1) Cryptophagus jakowlewi REITTER, 1888, (2) Cryptophagus uralensis BRUCE, 1963. Fig. 3-4: Habitus of (3) Cryptophagus bidentatus MÄKLIN, 1853, holotype, (4) Cryptophagus scanicus (LINNAEUS, 1758), Germany.

Fig. 5-6: Habitus of (5) Cryptophagus confertus CASEY, 1900, Canada, (6) Cryptophagus reflexus REY, 1889, Germany. Fig. 7-8: Habitus of (7) Cryptophagus jakowlewi REITTER, 1888, Finland, (8) Cryptophagus corticinus THOMSON, 1867, Germany.