Trypophloeus dejevi Stark, 1936

Kvamme, Torstein, Mandelshtam, Michail, Salnitska, Мaria, Ojeda, Dario I., Lindelöw, Åke & I., D., 2021, A new cryptic Trypophloeus Fairmaire, 1864 species in Northern Fennoscandia (Coleoptera, Curculionidae) revealed by DNA analyses, Norwegian Journal of Entomology 68, pp. 44-66 : 61-62

Trypophloeus dejevi Stark, 1936

T. dejevi Stark, 1936: 152

T. niger Stark, 1936: 152 nov. n.

T. dejevi Eggers, 1942: 31

Type material: Lectotype: “ Sajan Mts. , Margasan River , 22.VIII.31, S. Deev leg.”// “ Mixed forest , willow, stem, 56”// “ Trypophloeus dejevi Stark , types, d[et]. Stark, 1933”//“ Lectotypus Trypophloeus dejevi Stark , det. Michalski 1965”, ZIN; paralectotypes: 7 exx. with the same geographic label, one bearing an additional label “ Trypophloeus deevi Stark , nov. types ”; 2 exx. with labels “ Sajan Mts. , Barun-Ingasun River (in Michalsky 1969, name of river is given erroneously as Barun-Intarun), 14.IX.31., S. Deev leg.”, “ Mixed forest, alder, stem 79”// “ Paralectotypus ”, ZIN.

Comment. Michalski designating the lectotype and used the latinized version of the term on the label, and his label is cited here in full. In addition to the types labeled by J. Michalski there are more specimens in V.N. Stark collection preserved at ZIN. Eight of these specimens have the same label as the lectotype, and 7 specimens carry the labels: “ Sajan Mts. , Margasan River 24.VIII.31, S. Deev leg.”, “ Mixed forest, willow, stem 62” .

Trypophloeus niger Stark, 1936 . Type material: Lectotype: “Vladivostok Reg., Maikhe forestry, 2.VIII.1930 ”, “159”, “species? from willow”, “ Trypophloeus niger Stark , types d. Stark, 1933” “ Lectotypus Trypophloeus niger Stark. det. J. Michalski, 1965”, ZIN; paralectotype: “Vladivostok Reg., Maikhe forestry, 2.VIII.1930 ”, “159”, “species? V. Stark det. 1931”.;? “159, bank of Maikhe River on willow Salix 2.VIII.1930, Lyubarskyi ”, ZIN.

Comment. The original description was based on only two syntypes. No more specimens of this species are known so far.

Additional material: RUSSIA, Irkutsk Province: 1 ex. Sajan Mountains, Margasan River , mixed forest, willow, stem 56, 22.VIII.1931, S. Deev leg., IBSS ; 1 ex, Sajan Mountains, Barun-Ingasun River , mixed forest, alder, stem 79, 14.IX [19]31, IBSS ; 1 ex. Baical (sic!), Sajan , 14.IX.1931 Salix, Dejev leg., NHMW ; 1 ex. Baikal , Salix , 16.IX.1931, Cotype, Dejev leg., NHMW ; 7 exx. Nizhneangarsk , alder, without date and collector name, ZMMU ; RUSSIA, Chita Province: 4 exx., Kodar Mts., near Sul’han River , 1600-1900 m., 10-17.VII.1997, A. Petrov leg., ZIN ; RUSSIA, Kamchatka Province: 5 exx. 28.VII.1958, Kurentsov et Kononov leg., IBSS ; 2 exx. 13.VIII.1958, Kurentsov leg., IBSS ; 2 exx. 14.VIII.1958, Kurentsov leg., IBSS ; 3 exx. 17.VIII.1958, Kurentsov et Kononov leg., IBSS ; 4 exx. 27.VIII.1959, D. Kononov leg., IBSS ; 8 exx. 6.VII.1960, Ivliev leg., IBSS ; 7 exx. 8.VII.1960, Kupyanskaya leg., IBSS ; 12 exx. 9.VII.1960 Lisichenko leg., IBSS ; 6 exx. 11.VII.1960, Ivliev leg., IBSS ; 18 exx. 15.VII.1960, Kupyanskaya leg., IBSS ; 2 exx. 17.VII.1960, Kupyanskaya leg., IBSS ; 7 exx. 18.VII.1960, Kupyanskaya leg., IBSS ; 2 exx. without collector name, IBSS; 9 exx. 26.VII.1960, Lisichenko leg., IBSS ; 1 ex. 8.VIII.1960, Lisichenko leg., IBSS ; 14 exx. 8.VIII.1960, Kupyanskaya leg., IBSS ; 5 exx. 10.IX.1960, Lisichenko leg., IBSS ; additional 69 exx. without precise locality, collected in VII-IX 1958–1960 by different collectors, IBSS; RUSSIA, Sakhalin Province: 5 exx. Sakhalin, 06.VIII .

[19]51, G. Krivolutskaya leg., ZMMU; 53 exx. Uglegorsk Distrrict, environs of Kotan settlement, sea shore, from alder, 6.VIII.1951 , Krivolutskaya leg. (erroneously labeled as syntypes of Eocryphalus zachvatkini Krivolutzkaja , collected at same place and date), ISEA; 13 exx. Sakhalin, alder, without date , G. Krivolutskaya leg., ZMMU; RUSSIA, Amur Province, 1 ex. Zeiysky Nature Reserve , kordon 52-nd km. 25.VII.1978 , leg. Zimenko (N. B. Nikitsky coll.), ZMMU; RUSSIA, Primorsk Territory: 3 exx. Lesozavodsk town, from aspen, Naberezhnaya street, 24.VIII. [19]66 , A.N. Kypyanskaya leg., IBSS; 5 exx.

Vladivostok, on Populus tremula , 16.IX.2000, M. Mandelshtam leg., ZIN .

General distribution: Russia: Eastern Siberia (Sajan Mts., Cisbaikalia, Transbaikalia), Sakhalin, Kamchatka, Amur Province, Primorsk Territory, Mongolia (Ulan-Bator, 8.VII.1956, on willow, leg. V.P. Gretchkin, cf. Sokanovsky 1960), ( Knížek 2011).

Host trees: Salix sachalinensis , Salix spp. , Alnus sp. , and Populus tremula .

Re-description. Body: length – 1.85–2.15 mm, 2.7 (2.6–2.9) as long as wide. Body black, faintly shining. Head: antennae brown, frons slightly impressed from the middle to epistoma; surface finely punctured, more densely at lower half; reticulated from upper level of eyes to vertex; vertex entirely reticulated. Pronotum: widest near base, summit slightly behind middle, distinctly elevated; asperities coarse and forming concentric rows in anterior half; anterior margin with six teeth; surface rough, less densely punctured at posterior half, covered with mixture of hair-like setae and scarce elongated scales. Elytra: 1.85–2.0 times as long as wide, strial punctures distinctly impressed throughout elytral length; interstriae with shallow punctures; covered with recumbent hair-like setae replaced with scale-like setae on declivity; 2nd and 3rd interstriae on declivity slightly raised. Legs: legs brown colored.

Diagnosis. T. dejevi can be distinguished from closely related T alni and T. nitidus by stouter body, coarse asperities in anterior half of pronotum, distinct, deep punctures on elytra and pronotum, and by elytral vestiture.