Aleksiana rasnitsyni, KRZEMIŃSKI & KOPEĆ & SOSZYŃSKA-MAJ & SKIBIŃSKA, 2021

KRZEMIŃSKI, WIESŁAW, KOPEĆ, KATARZYNA, SOSZYŃSKA-MAJ, AGNIESZKA & SKIBIŃSKA, KORNELIA, 2021, Aleksiana rasnitsyni gen. et sp. nov. (Diptera, Limoniidae) to honour Alexandr Rasnitsyn, Palaeoentomology 4 (5), pp. 436-440 : 437-438

publication ID

https://doi.org/ 10.11646/palaeoentomology.4.5.8

publication LSID

lsid:zoobank.org:pub:CFFD56AD-4AB3-40CF-AEE8-278A614B9534

persistent identifier

https://treatment.plazi.org/id/CA7FA417-974E-7E45-FCF5-FAE6FBE6ECC6

treatment provided by

Plazi

scientific name

Aleksiana rasnitsyni
status

sp. nov.

Aleksiana rasnitsyni sp. nov.

( Figs 1–3 View FIGURE 1 View FIGURE 2 View FIGURE 3 ) urn:lsid:zoobank.org:act:F49A8D43-5CD3-415E-82E2-B0930C24B982

Material. Holotype No. MP/3663 male, and additional material No. MP/3662 female from Burmese amber, housed in the Natural History Museum of the Institute of Systematics and Evolution of Animals Polish Academy of Sciences, Kraków, Poland ( ISEA PAS).

Diagnosis. Cross vein m-cu distant before d-cell, (by about 1⅓ length of d-cell base); appendage on gonocoxite very long, narrow, broken in half of its length and is equal to the length of gonocoxite.

Description. Holotype ( Fig. 1A View FIGURE 1 ) well preserved, legs fragmentarily preserved; body length 3.1 mm; wing length 3.0 mm; wing width 1 mm. Female well preserved only legs fragmentarily preserved ( Fig. 2A View FIGURE 2 ).

Head ( Figs 1B View FIGURE 1 , 2B View FIGURE 2 ). Small, broader than its length, placed on a relatively long neck; antennae with 16 flagellomeres ( Fig. 3B View FIGURE 3 ), scapus large, tubular, pedicel slightly broader than scapus, short, fusiform; basal flagellomeres short, broad, gradually decreasing and taking on an elongated shape; all flagellomeres have 2–3 short bristles; the last segment equal in length to the penultimate one; palpi short, the last segment almost 2 × longer than the penultimate one; Thorax. Legs slender, long, without tibial spur, preserved only partially; wing 3 × longer than its width ( Figs 1C View FIGURE 1 , 3A View FIGURE 3 ); vein Sc ends opposite fork of Rs;

cross vein sc-r well beyond end of Sc, almost opposite 1/3

length of Rs; R 1 ends opposite cross vein r-m; cross vein r-r (R 2) long and located just before end of R 1; Rs 2 × longer than R 2+3+4, vein R 3+4 3.5 × longer than R 2+3+4; d-cell constitutes 1/10 of the wing length; vein M 1+2 slightly more than 2 × longer than length of d- cell; cross vein m-cu well before Mb bifurcates into M 1+2 and M 3+4; vein A 2 distinctly wavy. Abdomen. Hypopygium of male rather short ( Figs 1D View FIGURE 1 , 3C View FIGURE 3 ), broad with very long, broken, single process on gonocoxites; gonostylus partially fused together, outer with very long, strongly curved, narrow process; aedeagus not visible; parameres very long, slightly longer than length of gonocoxites. Ovipositor of female narrow, delicate, strongly curved dorsally (2C).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Limoniidae

Genus

Aleksiana

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