Tanytarsini

Chamutiová, Tímea, Hamerlík, Ladislav & Bitušík, Peter, 2020, Subfossil chironomids (Diptera, Chironomidae) of lakes in the Tatra Mountains an illustrated guide, Zootaxa 4819 (2), pp. 216-264 : 255

Tanytarsini ( Figs 7, 8 )

Head capsule pale to brown. Occipital margin darkened, dark brown to black. Shape and degree of development of occipital plate, if present, is important for identification of subfossils. Antenna always 5-segmented arising on distinct elongate antennal base – pedestals distally often projecting into spur of different size, occasionally accessory multispined or palmate process is present. Lauterborn organs well-developed, usually mounted on segment 2 and often situated on short to long pedicels. Premandible with 2–5 teeth. Mandible with 2–3 inner teeth, one dorsal tooth (occasionally 2–3 dorsal teeth); 1–2 surficial teeth may be present on dorsal surface. Mentum with single median tooth (may be laterally notched) and mostly with 5 lateral teeth. Ventromental plates usually wide and slender, almost touching each other medially, in some genera narrow, separated medially by at least the width of the three median teeth.

Figures

FIGURES 1–8. Diamesinae, Pseudodiamesa nivosa: 1—head capsule. Prodiamesinae, Prodiamesa olivacea: 2—head capsule. Tanypodinae, Procladius: 3—detail of head capsule. Tanypodinae, Zavrelimyia: 4—head capsule. Orthocladiinae, Chaetocladius piger-type: 5—head capsule. Chironominae (Chironomini), Chironomus anthracinus-type: 6—head capsule. Chironominae (Tanytarsini), Micropsectra junci-type: 7—head capsule. Chironominae (Tanytarsini), Micropsectra radialistype: 8—head capsule. li—ligula, pl—paraligula, dt—dorsomental teeth, a—antennae, ma—mandible, om—occipital margin, me—mentum, vp—ventromental plate, b—beard, p—projection on occipital margin, at—apical tooth of the mandible, it—inner teeth of the mandible, ap—antennal pedestal, pm—premandible, s—spur, pp—post-occipital plate, ss—seta submenti