Abstract
Two new species, Eotrichocera (Archaeotrichocera) longensis sp. n. and Eotrichocera (Archaeotrichocera) amabilis sp. n. of Trichoceridae are described based on a combination of the following characters: Sc ending proximad of the forking of R2, shape of d cell and A2 rather short and bending sharply toward posterior margin. These fossil specimens were collected from the Middle Jurassic Jiulongshan Formation of Daohugou in Inner Mongolia, China.
Highlights
Trichoceridae is a family of medium-sized dipterans, commonly called winter crane flies, Yang and Yang (1995) found that just a few adults can live in cold environment, even in winter, and indicated that the name of winter crane flies might not be proper
There are 77 species of fossil and amber trichocerids, which have been assigned into three subfamilies: Trichocerinae, Paracladurinae and Kovalevinae; and twelve genera: Cladoneura Scudder, 1894; Eotrichocera Kalugina, 1985; Rasnitsynina Krzemińska, Krzemiński & Dahl, 2009; Mailotrichocera Kalugina, 1985; Paleotrichocera Kalugina, 1986; Karatina Krzemińska, Krzemiński, Dahl & Lukashevich, 2009; Trichocera Meigen, 1803; Tanyochoreta Zhang, 2006; Zherikhinina Krzemińska, Krzemiński & Dahl, 2009; Undaya Krzemińska, Krzemiński & Dahl, 2009; Kovaleva Krzemińska, Krzemiński & Dahl, 2009; Paracladura Brunetti, 1911 (Krzemińska et al 2009a)
The oldest species of trichocerids, Mailotrichocera variabilis, M. mikereichi and M. zessini have been described from Lower Jurassic of Germany (Krzemińska et al 2009a)
Summary
Trichoceridae is a family of medium-sized dipterans, commonly called winter crane flies, Yang and Yang (1995) found that just a few adults can live in cold environment, even in winter, and indicated that the name of winter crane flies might not be proper. There are eight species in three genera described from the Daohugou locality of China: Eotrichocera (Archaeotrichocera) ephemera Zhang, 2006; Tanyochoreta integera Zhang, 2006; Tanyochoreta chifengica Zhang, 2006; Tanyochoreta (Sinotrichocera) parva Zhang, 2006; Eotrichocera (Archaeotrichocera) conica Krzemińska, Krzemiński & Ren, 2009; Eotrichocera (Archaeotrichocera) rara Krzemińska, Krzemiński & Ren, 2009; Eotrichocera (Archaeotrichocera) spatiosa Liu, Shih & Ren, 2012 and Zherikhinina reni Krzemińska, Krzemiński & Dahl, 2009. Two new species of Trichoceridae from the Middle Jurassic Jiulongshan Formation...
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