Uzelothrips eocenicus P. Nel and A. Nel, 2013
|
publication ID |
https://doi.org/ 10.4202/app.2011.0016 |
|
persistent identifier |
https://treatment.plazi.org/id/D82A87B3-FFD1-DB6C-C763-F9AE71D7094B |
|
treatment provided by |
Felipe |
|
scientific name |
Uzelothrips eocenicus P. Nel and A. Nel |
| status |
sp. nov. |
Uzelothrips eocenicus P. Nel and A. Nel View in CoL sp. nov.
Figs. 1 View Fig , 2 View Fig .
Etymology: In reference to the Eocene age.
Type material: Holotype MNHN−F. A38530 , PA 6818 , macropterous female ( Fig. 1 View Fig ) . Paratype MNHN−F. A38531 , PA 1794 , apterous of unknown sex ( Fig. 2 View Fig ) .
Type locality: Farm Le Quesnoy , Chevrière , Region of Creil, Oise Department (northern France) .
Type horizon: Lowermost Eocene amber, Sparnacian (53 Myr), level MP7 of the mammal fauna of Dormaal ( Nel et al. 1999) .
Material.— Type material only.
Diagnosis.—Antennal segments III and IV clearly separated, while they are fused in the Recent species.
Description.—Body stout, 488 µm long ( Figs. 1A, C View Fig ). Head 36 µm median dorsal long; 112 µm wide; eyes large, 40 µm long, 32 µm wide; presence of a symmetrical pair of humps between eyes, each bearing three infundibuliform setae arising from prominent tubercles (especially well seen on macropterous specimen) ( Fig. 1D View Fig ); mouth cone longer than head; antennae eight−segmented, antennal segment I 20 µm long, segment II 24 µm long, segment III 14 µm long with one truncated cone on each lateral side (whether tubercle or sensilla is unknown; more pronounced in macropterous than in apterous specimen) ( Figs. 1A, B View Fig , 2B, D View Fig ); segment IV 44 µm long, narrower than III, with one large and broad rounded tympanum−like sensory area in its upper middle part ( Figs. 1A, B View Fig , 2B, D View Fig ); segment V 32 µm long with a thumb−like sensorium on outer lateral margin; segment VI 36 µm long, VII 32 µm long; segment VIII slender with seven long and narrow divisions, 66 µm long. Transverse median dorsal sclerite attached to anterior margin of pronotum. Pronotum trapezoidal 100 µm long, 190 µm wide at posterior margin (inclusive of lateral tubercles); posterior angles conically projecting bearing each two infundibuliform setae arising from prominent tubercles; heavily tuberculate, posterior margin with projecting teeth only distinctly visible on apterous specimen; mesonotum and metanotum posteriorly marginated with projecting teeth well seen on apterous specimen, unknown for macropterous specimen. Legs with numerous tubercles; tarsi one−segmented. Fore wing 480 µm long, 40 µm wide; rounded at apex; margins running parallel; indiscernible venation, one clear seta at base, a second one seems highly probable because on the left wing base, a structure resembling an insertion of seta (but no seta) is discernible; two discal setae on clavus; fringe straight. Hind wing 440 µm long, 12 µm wide, one vestigial vein visible. Abdomen 260 µm long, 188 µm wide; tergites with mostly twelve setae arising from tubercles (particularly well seen on apterous specimen); a comb of short teeth on posterior margin of tergites I–VII clearly visible on apterous specimen ( Fig. 2C View Fig ); combs of short teeth are discernible at some places on abdominal segments of macropterous specimen ( Fig. 1C View Fig ); sternite I as wide as other sternites on apterous specimen; ovipositor only weakly sclerotized.
Stratigraphic and geographic range.— Type locality and horizon only.
Kindgom Fungi R.T. Moore, 1980
Phylum Ascomycota Cavalier−Smith, 1998
Class Dothideomycetes O.E. Eriksson and Winka, 1997
Order? Capnodiales Woronichin, 1925 ? Capnodiales gen. et sp. indet.
Fig. 3 View Fig .
Description.—Melanized fungal remains are found attached to the cuticle of the fossil apterous specimens ( Fig. 3A View Fig ). Most of these structures are obviously fragments of a pigmented mycelium and consist of few mostly globose to subglobose cells of 3 to 6 µm diameter. A few elongate cells of 8 to 10 µm length and 4 µm diameter are also preserved. Other structures represent four−celled Capnosporium −like conidia (see arrowhead in the uppermost left panel of Fig. 3A View Fig ). The occurrence of hyphae with tapering tips with dividing stages (indicated by the arrowhead in the middle right panel of Fig. 3A View Fig ) suggests that these fossil fungi may belong to the sooty moulds ( Capnodiales ). However, based on the few visible features an assignment to this order is tentative.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.