抚顺琥珀中始须蠓新属的建立和分类讨论

A NEW GENUS- EOPALPOMYITIS GEN.NOV.FROM EOCCENE FUSHUN AMBER AND DISCUSSION OF ITS TAXONOMIC POSITION

本文建立 1个始须蠓新属 。

All specimens for the present paper were collected from Fushun amber of Guchengzi Formation(E 1 2g)(Ypresian)of Fushun colliery in Fushun city of Liaoning province.Through study and analysis a new genus Eopalpomyitis gen.nov.could be established based on a old species Palpomyia unca Hong,1981. The new genus Eopalpomyitis (♀)allied closely to Palpomyia ,but differs distinctly from the later in having following features: (1)The antenna with 16 joings and only 5-th joints longed at its distal portion. (2)A sensilla coeloconical at antennal first flagellum and a serisory pit at palpal 3rd-joint. (3)Sctl 2 with developed long setae,including 8 lateral,2 terminal ,2 basal and 2 dorsal long setae. (4)Ventral margin of Fore-,Middle-,and Hind femura with strong spines. (5)Ventral margins of 5 th segment of the tarsus only with a low of strong spins. (6)All claws without basal teeth,but with a rmall teeth in the inner margin. (7)C long and reached M 1 termination. (8)Having distinctly a broad longitudinal groove in the dorsal notum(N 2),it can be separated with all genera of within Certopogonidae.