Pristiphora bifida ( Hellen , 1948)

Prous, Marko, Vikberg, Veli, Liston, Andrew & Kramp, Katja, 2016, North-Western Palaearctic species of the Pristiphora ruficornis group (Hymenoptera, Tenthredinidae), Journal of Hymenoptera Research 51, pp. 1-54 : 22

publication ID

https://dx.doi.org/10.3897/jhr.51.9162

publication LSID

lsid:zoobank.org:pub:B3D68EDB-9CF8-44A3-BC43-E9C2D6626BD7

persistent identifier

https://treatment.plazi.org/id/6BE64A66-C0FA-2D68-1AF0-22B1ECE83635

treatment provided by

Journal of Hymenoptera Research by Pensoft

scientific name

Pristiphora bifida ( Hellen , 1948)
status

 

Pristiphora bifida ( Hellen, 1948)

Nematus (Pristiphora) bifidus Hellén, 1948: 116-117. Lectotype ♀ (http://id.luomus.fi/GL.5214; here designated) in MZH, examined. Type locality: Malla, Kilpisjärvi, Enontekiö, Finland.

Similar species.

Externally, perhaps the most similar species is P. frigida , from which it can be distinguished by having pale hind trochanters, trochantelli, and tibiae (black or brown in P. frigida ). In addition, antennae of males have numerous and clearly visible stout black setae among finer paler ones (Fig. 36 View Figures 18–36 ), while in P. frigida there are only a few barely visible ones (Fig. 35 View Figures 18–36 ). The lancets (Figs 70-71 View Figures 70–72 ) and penis valves (87-88) are also different. Apical serrulae are somewhat shorter and more protruding and the tangium of the lancet tends to be longer and narrower (Fig. 70 View Figures 70–72 ) than in P. frigida (Fig. 71 View Figures 70–72 ). The penis valve lacks (Fig. 87 View Figures 87–96 ) a membranous fold near the tip of the ventro-apical spine (present in P. frigida ; Fig. 88 View Figures 87–96 ) and the pseudoceps has a distinct dorsal depression in the middle or basal part (absent in P. frigida ).

Genetic data.

Based on COI barcode sequences, P. bifida belongs to the same BIN cluster (BOLD:AAG3568) as P. aphantoneura , P. confusa , P. luteipes , P. opaca , P. pusilla , P. staudingeri , and P. subopaca (Fig. 1 View Figure 1 ). The nearest neighbour (BOLD:AAQ2302, P. armata and P. leucopus ) is 2.76% different. Only one partial TPI sequence (sequencing of the first exon and part of the following intron failed apparently because of intron length polymorphism) of P. bifida is available, which can be distinguished from other species (Fig. 2 View Figure 2 ).

Host plants.

Salix viminalis L. ( Liston and Burger 2009). In Kilpisjärvi (Finland) some other species must be the host, as S. viminalis does not occur there.

Distribution and material examined.

Western Palaearctic. Specimens studied are from Finland, Germany, Norway, and Sweden. According to the BOLD database, this species may also be present in North America. The identifications of North American specimens falling within BIN cluster BOLD:AAG3568 are however uncertain.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Tenthredinidae

Genus

Pristiphora

Loc

Pristiphora bifida ( Hellen , 1948)

Prous, Marko, Vikberg, Veli, Liston, Andrew & Kramp, Katja 2016
2016
Loc

Nematus (Pristiphora) bifidus

Hellén 1948
1948