Elliptera mongolica Podeniene, Podenas & Gelhaus,

Podeniene, Virginija, Podenas, Sigitas, Park, Sun-Jae, Kim, A-Young, Kim, Jung A & Gelhaus, Jon K., 2021, Review of East Palaearctic Elliptera (Diptera, Limoniidae) immatures with description of a new species, European Journal of Taxonomy 735, pp. 110-132: 115-116

publication ID

https://doi.org/10.5852/ejt.2021.735.1245

publication LSID

lsid:zoobank.org:pub:8ACB969A-DE45-451C-A8CB-27E4A82788CD

DOI

http://doi.org/10.5281/zenodo.4557204

persistent identifier

http://treatment.plazi.org/id/34420075-5F02-4DD6-A1D7-50B7D6E23429

taxon LSID

lsid:zoobank.org:act:34420075-5F02-4DD6-A1D7-50B7D6E23429

treatment provided by

Plazi

scientific name

Elliptera mongolica Podeniene, Podenas & Gelhaus
status

sp. nov.

Elliptera mongolica Podeniene, Podenas & Gelhaus  sp. nov. urn:lsid:zoobank.org:pub:8ACB969A-DE45-451C-A8CB-27E4A82788CD

Figs 2–5View FigView FigView FigView Fig

Diagnosis

Body length reaching up to 14.5 mm. Head capsule heavily sclerotized. Hypostoma with nine teeth. Abdominal segments II–VII with dorsal and ventral creeping welts. Spiracular disc surrounded by four lobes, with lateral pair of lobes almost entirely sclerotized.

Etymology

The specific epithet is a noun ‘mongol’ with Latin suffix ‘ica’, referring to the distribution of the new species.

Type material

Holotype MONGOLIA • larva (in alcohol); Tov Aimag, Mongonmorit Soum, Zuun Baydlag Gol , downstream , 15 km SW of Mongonmorit; 48°06.49′ N, 108°22.04′ E; 1475 m a.s.l.; 14 Jul. 2011; V. Podeniene leg.; MAIS #2011071402; ANSP-ENT-146962.GoogleMaps 

Paratypes MONGOLIA • 22 larvae (in alcohol); same collection data as for preceding; GenBank: MT233411View Materials; ANSP  .

CHINA • 11 larvae (in alcohol); Inner Mongolia, Chifeng, Bailin Youqi, Sai Hanwula Reserve ; 44°15.06′ N, 118°19.54′ E; 1165 m a.s.l.; 10 Jul. 2018; V. Podeniene leg; Shenyang Agricultural University; GenBank: MT233412View Materials; ANSPGoogleMaps  .

Description

Larva

MEASUREMENTS. Length 11.6–14.5 mm, width 1.7–2.0 mm.

BODY. Cylindrical, dark brown, hairs on dorsal and ventral sides darker than on lateral side. Abdominal segments II–VII divided into anterior and posterior parts, anterior part with dorsal and ventral creeping welts ( Fig. 2View Fig A–C). Creeping welts with dark brown spines, arranged into transverse rows. All thoracic and abdominal segments I–II shorter than wider. Abdominal segments III–VIII approximately as long as wide. Pale circular area present on dorsum of all segments except the prothorax ( Fig. 2BView Fig).

HEAD. Length 1.20–1.25 mm, width 1.10–1.20 mm. Head capsule oval, heavily sclerotized and slightly reduced ( Fig. 2DView Fig). Frontal suture absent, dorsal suture reaching to about the middle of head capsule ( Fig. 2DView Fig), hypostoma complete ( Fig. 2IView Fig). Labrum wide with numerous sensory structures: short seta, middle-long seta and three sensory pegs in the middle of anterior part ( Fig. 2EView Fig). A narrow sclerotized band situated anterior to sensory structures. Anterior part and sides of labrum as well as epipharynx covered with numerous short hairs. Clypeus fused with labrum and bears wide sclerotized plate anteriorly ( Fig. 2EView Fig). Frons separated from clypeus and fused with internolateralia, which are considerably shorter than externolateralia; four long setae located on each side of the anterior margin of frons, one seta below the base of antenna, a pair of sensory pits in the middle of anterior part, caudal end of fronsinternolateralia very wide and arched ( Fig. 2View Fig D–E). Basal antennomere cylindrical, more than twice as long as wide, with two long setae and a few very short sensory structures apically; apical segment short, cylindrical; sensory pit located at the base of basal segment ( Fig. 2EView Fig). Mandible conus-shaped, with two large apical teeth, both similar in shape and size ( Fig. 2FView Fig), first ventral tooth triangular, second ventral and basal teeth blunt; single well developed sharp tooth on dorsal side; two long setae at the base of mandible (on outer margin). Maxilla well developed ( Fig. 2GView Fig); outer lobe (stipes) and inner lobe (galea fused with lacinia) large and similar in size. Outer lobe: two-thirds sclerotized, apical part and outer margin covered by long setae; button shaped apical papilla with sensory structures on the apex and small papilla next to it. Inner lobe: basal part sclerotized; long and short sensory papillae on apical part; apical part and inner margin covered with short setae. Cardo large, wedge shaped with sensory pit near outer margin of sclerite. Hypopharynx arched, sclerotized and toothless. Prementum dentated (four large teeth in the middle and two small similar in size teeth on both sides) ( Fig. 2HView Fig). Hypostoma with nine anterior teeth, the middle tooth most prominent ( Fig. 2IView Fig).

ANAL DIVISION. Spiracular field surrounded by four lobes, ventral lobe twice as long as lateral lobe ( Fig. 3View Fig A–B). Lateral lobe as long as wide, almost entirely sclerotized except the middle part, three medium-long setae located along the outer margin of lobe. Ventral lobe twice as long as wide at the base with dark U–shaped sclerite, ventral branch of each lobe fused with its opposing sclerite to form continuous line. Dark spot situated at base of each lobe below spiracle (missing in some specimens). Two long setae and one medium-long seta located at the apical part of lobe; one medium-long seta on the outer margin of lobe. A pair of sensory pit located on dorsal margin of spiracular field. Spiracular field fringed with long firm setae, longest around the apical part of each lobe. Spiracles large, oblong, placed obliquely and inclined dorsally ( Fig. 3View Fig A–B). Anal field consists of two pairs of conical, white, fleshy anal papillae ( Fig. 2CView Fig).

Pupal and adult stages unknown.

Habitat

Larvae were found on accumulated mud on river boulders in Mongolia ( Fig. 4View Fig). Larvae in China were found on accumulated mud on spring boulders. Some of them (in both localities) made cases from mosses ( Fig. 5View Fig).

Distribution

Currently known only from Mongolia and Inner Mongolia ( China).

ANSP

USA, Pennsylvania, Philadelphia, Academy of Natural Sciences

V

Royal British Columbia Museum - Herbarium

ANSP

Academy of Natural Sciences of Philadelphia

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Limoniidae

Genus

Elliptera