Trypophloeus alni ( Lindemann, 1875 )

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 : 59-60

Trypophloeus alni ( Lindemann, 1875)

Cryphalus alni Lindemann, 1875 a: 136

= Trypophloeus holdhausi Wichmann, 1912: 186

Examined material:

Trypophloeus alni ( Lindemann, 1875) . Type material: Lindemann’s syntypes of Cryphalus alni are not preserved in ZMMU where they were expected to be kept. However, some of Lindemann’s specimens were located in NHMW. Lectotype is designated here from the NHMW. Lectotype: ♀ Trypophloeus alni ( Lindemann, 1875) . Mosqua//Lindemann//Collect Türk.// Cryphalus alni Lind. Typ [in handwriting] // TYPUS [on red paper, printed] // Lectotypus Cryphalus alni Lindemann, 1875 designated by Mandelshtam (date marked on label as 2006, but in fact lectotype is designated only in the current paper)// Trypophloeus alni ( Lindemann, 1875) det. Mandelshtam, 2006 NHMW; Paralectotypes, 7 ex. with same collecting label: Lindemann// Mosqua// NHMW.

Trypophloeus holdhausi . Holotype: Trypophloeus holdhausi Wichmann, 1912 : Holdhaus, Campo-Grosso// bei Rovereda, Süd Tirol // TYPUS [printed, on red paper] // Trypophloeus Holdhausi n. sp. ♀ Type 1912 det. Wichmann, 1912 // Holdhausi Wichm. Ti. m// Trypophloeus alni ( Lindemann, 1875) det. Mandelshtam, 2006. Type is located in NHMW.

Additional material. ESTONIA: 2 exx. Estland, Leliland, 10.VIII.1937, J. Hristian, 113, NHMW. RUSSIA, Leningrad Province: 2 exx. Lesnoy, Petrograd, 25.IV.[1]915, Spessivtsev leg., ZIN; 2 exx. Beloostrov, Sestra River Bank, riverflooded forest, forest with Alnus and Prunus padus , under bark of fallen Alnus incana thick branches, 23.IV.1990, M.Yu. Mandelshtam leg., ZIN; 11 exx. Orzhitsy, Lomonosov District, park, under bark of fallen stem of Alnus incana , 20.VIII.2001, M.Yu. Mandelshtam leg., ZIN; 1 ex. RUSSIA, Pskov Province, Sebezh District, Sebezh National Park, Osyno Forestry, under bark of Alnus incana cut stem, VII.2002, Mandelshtam leg., ZIN; RUSSIA, Arkhangelsk Province: 12 exx. 1851 alder, Vel’sk, Vologda Government, 23.VIII.1929, G.K. Pjatnitskiy leg., ZIN; 33 exx. under number 1855, 3.IX.1929; 57 exx. under number 1854, ZIN; RUSSIA, Yaroslavl Province, 3 exx. Poshekhonsk

forestry, Yaroslavl Government, standing dead Comments. Reports of the species from Italy willow, 20 years, 17.VII.1928, G. Pjatnitskiy leg., is erroneous. It is based on incorrect assignment of ZIN; RUSSIA, Moscow Province: 1 ex. Bol’shevo Campo-Grosso to Italy, but in fact this locality is Station, in the bark of stem of alder, 15.IV.1925, in Switzerland .

S. Shorokhov leg., ZIN; 1 ex. ZMMU; 1 ex. T. alni is listed from China ( Hua 2002, Bol’shevo Station, in the bark of growing drying Knížek 2011), including Xinjiang and Sichuan. alder, 06. VI.1925, S. Shorokhov leg., ZIN; 2 exx. The general distribution indicates that this most Bol’shevo Station, in the bark of growing drying probably is erroneous and might refer either to T. alder, 14. VI.1925, S. Shorokhov leg., ZMMU; 2 dejevi or to a still undescribed species (cf. Knížek exx. Bol’shevo Station, alder, 14. VI.1926, ZIN; 2011).

2 exx. Zvenigorod Biological Station of Moscow No specimens from Ukraine were found in State University, window trap, 23.V.1981, M. available collections .

Samkov leg. ( V. Gratchev coll.), ZMMU; 1 ex. Host trees: Alnus glutinosa , A. incana . Much Zvenigorod Biological Station of Moscow State more common in A. incana .

University, 30. VI.1981, M. Samkov leg. ( V. In China T. alni is mentioned to infest Alnus Gratchev coll.), ZMMU; 1 ex. Zagorsk District, and Populus davidiana ( Hua 2002) . However, Malinniki village, waterfall “Gremyachiy”, aspen since we evaluate the occurrence of T. alni in China stem, 22. V.1982, A.Petrov leg., ZMMU; 1 ex. to be doubtful, we do not delete this information Zvenigorod, 22.III.1989, M.Yu. Mandelshtam until new documentation is available.

leg., ZIN; 3 exx. Morozky, window trap on the elm Re-description. Body: small, slim and No. 2, 25.IV–18. V .1994, Nikitsky leg., ZMMU; strongly elongated, 1.2–1.6 mm, 3.0–3.25 times as 2 exx. Mozhaiskyi District , near village Osiritsi, long as wide, dark brown to black. Frons: weakly window trap 5, 22.IV.–28. V .2009 Nikitsky leg., convex, shallowly reticulated from upper level of ZMMU; RUSSIA, Bryansk Province: 4 exx. eyes to vertex; vertex entirely reticulated. Frontal Bryansk, Orlov Gouvernement, 22.VII.[1]926, V . pubescence consists of inconspicuous sparse Stark leg., ZIN; RUSSIA, Permsk Province: 1 ex. hairs, vertex glabrous. Pronotum: triangular of Middle Ural, environment. of Gubakha, Molotov equal length and width at base, widest posterior Province (nowadays Permsk Province), alder, of tuberculated area, summit at middle. Asperities water-flooded forest of Kos’va River , square. in front of summit abundant, rather small, conical, 265, 28.XI.1952, Zinovjev leg., ZIN ; 2 exx. their height is equal to width at base, apically environment. of Molotov (nowadays – Perm), sharpened, basically not fused, not arranged in Mysy village , 07. V .1953, G. Zinovjev leg., ZIN; regular rows. Number of tubercles at pronotal, 9 exx. environment. of Molotov (nowadays – anterior margin variable. Pronotal vestiture Perm), Mysy village , 13. V .1953, G. Zinovjev consists of short, fine hairs with hair-like scales leg., ZIN ; 3 exx. Mysy village , Krasnok [utskiy] intermixed, the latter more abundant nearby base. District, alder, 07. VI .1953, G. Zinovjev leg., ZIN; Setae directed backward at tuberculated area and RUSSIA, Kemerovo Province: 1 ex. Kemerovo, forward at the posterior area. Elytra: as long on willow, “intermediate form between T. alni as wide, 2.2 (2.08–2.33), just a little wider than and T. rybinski ” [B. Sokanovskij note], ZMMU ; pronotum (1.0–1.1), sides parallel on basal two 3 exx. Aspen Plateau, willow, M. Lurie leg.; “ Tr. thirds, narrowly rounded at apex. Striae distinctly alni v. rybinskyi Rtt. B. Sokanovskij det. 57”, ZIN ; impressed throughout their length, with elongated PATRIA IGNOTA: 2 exx. 1930 Karl Schedl 135, punctures; interstriae slightly raised. Strial NHMW ; 8 exx. 1930 Karl Schedl 741, NHMW . punctures with short hair-like setae, interstriae General distribution: Austria, Belarus, with ground vestiture of recumbent hair-like setae Estonia, Finland, Germany, Norway, Poland, replaced with scale-like setae at declivity and each Switzerland, European part of Russia (Northern with a single row of long erect hair-like scales.

and Central Territories), West Siberia (Knížek Diagnosis. Rather similar to Trypophloeus 2011, Kvamme & Lindelöw 2014). dejevi and T. nitidus and sharing with these two species the reticulated (not aciculated) surface of the upper portion of frons and vertex. Can be distinguished from both species by more elongated elytra and by acute, not merging asperities at tuberculated area. T. rybinskii , one more species without spines and granules at male elytral declivity, has aciculated surface of the upper portion of frons, indistinct elytral striae and much stouter body. The smallest of the species in the species group ( Figure 5 ).

Figures

FIGURE 5. The size of 50 specimens of Trypophloeus borealis sp. n. were measured and compared to the size of the other species in the Trypophloeus alni species group.