Eulachnini, Baker, 1920

Théry, Thomas, Kanturski, Mariusz & Favret, Colin, 2018, Molecular Phylogenetic Analysis and Species Delimitation in the Pine Needle-feeding Aphid Genus Essigella (Hemiptera, Sternorrhyncha, Aphididae), Insect Systematics and Diversity (AIFB) 2 (4), No. 1, pp. 1-15 : 8-11

publication ID

https://doi.org/ 10.1093/isd/ixy006

persistent identifier

https://treatment.plazi.org/id/03E787D1-FFF8-7F5E-FC83-FA9B7B6CB653

treatment provided by

Felipe

scientific name

Eulachnini
status

 

Within Eulachnini View in CoL

Since its description ( Hille Ris Lambers 1966b), Pseudessigella has always been classified as a genus intermediate between Eulachnus and Essigella . Indeed, Pseudessigella shares characters with Eulachnus , such as simple tarsal claws (not incised), and with Essigella , such as 5-segmented antennae ( Hille Ris Lambers 1966b; Sorensen 1991, 1994). Pseudessigella also shares with Essigella a head fused with the pronotum ( Kanturski et al. 2017a) and with Eulachnus a membranous abdominal dorsum ( Kanturski et al. 2017a; Sorensen 1991, 1994). Sorensen, in his revision of the genus Essigella (1994) , highlighted morphological proximities between Pseudessigella and Essigella , notably in the close patterns of their abdominal dorsal chaetotaxy. In contrast, a more recent morphological study pointed out that, except for its 5-segmented antennae, the general morphology of Pseudessigella was closer to that of Eulachnus ( Kanturski et al. 2017a) . Our analyses places Pseudessigella as sister-group to Essigella ( Fig. 2 View Fig , pp = 100%), as predicted by Sorensen (1991, 1994). The 5-segmented antennae and the head fused with the pronotum are therefore synapomorphies of Essigella and Pseudessigella , and the incised tarsal claws are an autapomorphy of Essigella . In contrast, the membranous abdominal dorsum present in Eulachnus and Pseudessigella is plesiomorphic.

a Populations in red indicate difference in BI results. They represent one unique MOTU.

b Only the BI results are indicated. ML results are similar to those with Gnd using GMYC.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Aphididae

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