Elachista titanella Kaila & Jalava

Kaila, Lauri, 2007, A taxonomic revision of the Elachista bedellella (Sircom) complex (Lepidoptera: Elachistidae: Elachistinae), Zootaxa 1629, pp. 1-25: 7

publication ID

http://doi.org/ 10.5281/zenodo.179345

publication LSID

lsid:zoobank.org:pub:67BD2809-0B03-4535-B628-C92AD04DD07A

DOI

http://doi.org/10.5281/zenodo.3501627

persistent identifier

http://treatment.plazi.org/id/DC296653-CE3A-5405-55EA-EFBEFD5C99EB

treatment provided by

Plazi

scientific name

Elachista titanella Kaila & Jalava
status

 

Elachista titanella Kaila & Jalava   , stat. n.

( Figs. 7, 8 View FIGURES 7 – 12 , 21 View FIGURES 19 – 25 , 34–37 View FIGURES 34 – 37 , 58 View FIGURE 58 E, F)

Elachista coeneni   ssp. titanella Kaila & Jalava, 1994: 100  

Material studied. Type material: Holotype, ď: [ USSR] 43 °N 43 °E C. Caucasus, Kabardino-Balkarskij N. P. 35 km SE mt. Elbrus, subalpine meadows, 2300 m, 9.VII. 1990 J. Jalava leg. (L. Kaila prep. 518, MZH). Paratypes: 32 ď with the same label data as in the holotype, but collecting dates between 9.– 11.VII. 1990) (L. Kaila prep. 371, 387, 516, 517, 520, 3416, 4110, 4111, 4112, MZH).

Diagnosis of male. Elachista titanella   is a large species, with forewing length 5–6 mm. Its wing pattern is variable, from almost unicolorous pale ochreous to brownish grey ( Figs. 7, 8 View FIGURES 7 – 12 ). In darker specimens the pale fascia and blurred tornal and costal spots are discernible as broad; the costal spot is situated beyond the tornal spot ( Fig. 7 View FIGURES 7 – 12 ). As such it is externally similar to E. versicolora   sp. n. These species differ from each other by the larger cornutus and the considerably broader juxta lobes of E. versicolora   (best observable in lateral view). The dorsally directed sac of the juxta is characteristically sharp distally in E. titanella   . Elachista titanella   differs from E. lugdunensis   by the following traits in the male genitalia: the phallus of E. titanella   is narrower and the cornutus is smaller and its tooth is shorter and blunt distally as compared to E. lugdunensis   ; the posterior sac of median plate of juxta is pointed distally in E. titanella   , blunt in E. lugdunensis   ; the juxta lobes are longer and narrower in E. lugdunensis   than in E. titanella   . The male genitalia of E. titanella   are perhaps closest to the externally distinctive E. bedellella   with the equally long and stout juxta lobes. The cornutus of E. bedellella   is larger, but the tooth in it is smaller than in E. titanella   .

Female. Unknown.

Distribution. Only known from Central Caucasus Mts. in Russia.

Remarks. E. titanella   was originally described as a subspecies of E. coeneni   (syn. of E. lugdunensis   ) largely due to the pale and blurred forewing pattern. It is here raised as species on the basis of the differentiating genital characteristics as outlined above.

MZH

Finnish Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Lepidoptera

Family

Elachistidae

Genus

Elachista

Loc

Elachista titanella Kaila & Jalava

Kaila, Lauri 2007
2007
Loc

Elachista coeneni

Kaila 1994: 100
1994