Tephrochlamys
Loew, 1862
Tephrochlamys is a of in the , established by Loew in 1862. within this genus are small-bodied flies, with Tephrochlamys rufiventris measuring 5–6 mm in body length. The genus is characterized by distinctive thoracic and features. It occurs in the Palearctic region.
Pronunciation
How to pronounce Tephrochlamys: /ˌtɛfroʊˈklæmɪs/
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Identification
Distinguished from similar by the specific arrangement of metathoracic (0+3 with first pair positioned closer to the suture), the subequal length of and metathoracic setae, and the dense hair arrangement between them (more than four rows). The combination of short monochromatic pterostigmas, -like bristles exceeding hair length, and a single on each middle provides additional diagnostic characters. These and features are critical for -level identification within Heleomyzidae.
Images
Appearance
Small , body length approximately 5–6 mm. with both and bristles on the . with setae on the , bare , and metathoracic setae arranged 0+3 with the first pair of setae positioned closer to the suture than to the second pair. and metathoracic setae nearly equal in length, with more than four rows of hairs between them. with short, monochromatic pterostigmas; bearing -like bristles longer than the hairs. Middle each with one well-developed .
Distribution
Palearctic region. Distribution records exist for Denmark (DK), Norway (NO), and Sweden (SE).
Similar Taxa
- Other Heleomyzidae generaSimilar overall body plan and size; distinguished by specific thoracic patterns, particularly the 0+3 metathoracic arrangement and positioning of the first pair relative to the suture.
More Details
Morphological terminology
The original description uses specialized dipteran morphological terms: ( region of ), ( plates of ), prothorax (first thoracic ), metathoracic (bristles on third thoracic segment), (thickened colored on margin), and (leading edge vein of wing).