Hister fossor Erichson, 1834

Mazur, Sławomir, 2007, Notes on some species described in the genus Hister L. (Coleoptera: Histeridae). III, Baltic Journal of Coleopterology 7 (2), pp. 149-156 : 150-152

Hister fossor Erichson, 1834 and H. obesus

Fahraeus, 1851

As it is commonly used ( Bickhardt, 1919: 83), H. fossor may be separated from H. obesus by very short and indistinct sutural stria and by longer outer pronotal stria. These characters, however, Figs. 1 - 12. 1-6. Hister divisifrons , 6-12. H. fossor . 1-3, 8-10: edeagus, 1, 8 - ventrally, 2, 9 - dorsally, 3. 10 - laterally, 4, 11 - 8th segment, 5, 12 - 9th and 10th tergites, 6 - pronotal side (f. “suturifer”), 7 - left elytron (f. “suturifer”).

are variable (Figs. 6, 7) as well as the presence of four complete dorsal striae. The detailed examination of the type-specimens of both these species and Hister fossor suturifer showed that all these taxons represented one species and the differences previously noted are in a normal individual variation. There also are any differences in the male genital structure (Figs. 8 - 12).

So, Hister obesus Fahraeus, 1851 = H. fossor Erichson, 1834 , syn. nov. and Hister fossor suturifer Müller, 1942 = H. fossor Erichson , syn. nov.

Hister fossor has been described on a base of type series, so a designation of the lecto- and paralectotypes is needed.

Lectotype: a female, 1) [green, handwritten] fossor Dej, Seneg. [al]. Dej, 2) [blue, printed] 48903, 3) [red, printed] Type, 4) [blue, printed] Hist.-Coll. ( Coleoptera ) Nr. 48903 Hister fossor Dej. *, Senegal, Dejean, Zool. Mus. Berlin, 5) [red, printed] Syntypus, Hister fossor Erichson, 1834 , labeled by MNHUB 2007, 6) [White, printed] Lectotypus.

Paralectotypes: I, a female, 1) [red, printed] Type, 2) [blue, printed] Hist.-Coll. ( Coleoptera ) Nr. 48903, Hister fossor Dej , Senegal, Dejean, Zool. Mus. Berlin, 3) [red, printed] Syntypus, Hister fossor Erichson, 1834 labeled by MNHUB 2007, 4) [white, printed] Paralectotypus, II, @&, as labeled as the paralectotype I, III, B&, as labeled as the paralectotype I, IV, B&, as labeled as the paralectotype I.