Essigella patchae Hottes, 1957

Thery, Thomas, Kanturski, Mariusz & Favret, Colin, 2018, Molecular data and species diagnosis in Essigella Del Guercio, 1909 (Sternorrhyncha, Aphididae, Lachninae), ZooKeys 765, pp. 103-122: 109-111

publication ID

http://dx.doi.org/10.3897/zookeys.765.24144

publication LSID

lsid:zoobank.org:pub:BD00760D-C946-4110-8C86-8CA2872C7CE3

persistent identifier

http://treatment.plazi.org/id/15D7236F-9573-7A6C-3F94-E97DAA9F0455

treatment provided by

ZooKeys by Pensoft

scientific name

Essigella patchae Hottes, 1957
status

stat. n.

Essigella patchae Hottes, 1957  stat. n. Figs 1b, 2b, d, f, h

Essigella patchae  Hottes, 1957: 98 (Type locality: "Stillwater, Maine"). Holotype viviparous alate in USNM. Sorensen 1994: 49 [synonymy with E. pini  Wilson]. Status re-established.

Other examined material.

1 viviparous alate and 1 viviparous aptera, Canada, Québec, Saint-Hippolyte, N45.991 - W74.009, ix.2015, on Pinus strobus  , C. Favret leg. ( QMOR); 1 viviparous aptera, Saint-Hippolyte, N45.989 - W74.005, ix.2016, on Pinus strobus  , T. Théry leg. ( QMOR); 1 viviparous aptera, Saint-Hippolyte, N45.989 - W74.005, ix.2017, on Pinus strobus  , T. Théry leg. ( QMOR).

Diagnosis.

Like species of the E. californica  complex and E. pini  , E. patchae  has its 3rd and 4th dorsal abdominal terga usually with six setae. Essigella patchae  can be distinguished from the other species of the E. californica  complex species and from E. pini  by its ultimate rostral segment (URS) exhibiting no or barely visible rows of spinules (Fig. 2b, d), which are clearly visible in other species of the E. californica  complex and also in E. pini  (Fig. 2a, c). Essigella patchae  can also be differentiated from E. pini  by having the general shape of the URS more elongated with lateral margins almost parallel (Fig. 2b, d) (margins more rounded and convergent at base in E. pini  ; Fig. 2a, c); shorter cauda than that of E. pini  which can be elongated and acute; genital plate with fewer setae (15-20 vs 26-30 in E. pini  ), longer in E. patchae  in comparison with E. pini  (Fig. 2e, f), with spinules of the genital plate tegument more developed in E. patchae  (Fig. 2g, h).

Host plant and distribution.

The species is currently known from its type locality in Maine (USA) and from one locality in Quebec (Canada) on Pinus strobus  Linnaeus (see discussion).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Aphididae

Genus

Essigella