Mesocallis (Paratinocallis) yunnanensis (Zhang, 1985)

Chen, Jing, Jiang, Li-Yun & Qiao, Ge-Xia, 2020, Review of Mesocallis Matsumura from China (Hemiptera, Aphididae), with one new species, ZooKeys 1003, pp. 19-30 : 19

Mesocallis (Paratinocallis) yunnanensis (Zhang, 1985)

Paratinocallis yunnanensis Zhang 1985: 220; Qiao et al. 2005: 211.

Mesocallis (Paratinocallis) yunnanensis (Zhang): Quednau 2003: 21.

Specimens examined.

Three alate viviparous females, China: Yunnan (Lijiang City: Yulongxueshan Mountain), 30 May 1984, no. 7192, on Corylus heterophylla , coll. T.S. Zhong (NZMC).

Distribution.

China (Yunnan).

Host plants.

Corylus heterophylla .

Biology.

Beige in life; infesting the underside of leaves of host plants.

Key to the species of Mesocallis in China

1	Abdominal tergites I-IV each with one pair of marginal setae	2
-	Abdominal tergites I-IV each with two or three pairs of marginal setae	6
2	Dorsal body setae dark brown; shafts of setae mainly smooth, only sparsely spinulose for part of length; on Platycarya strobilacea ( Juglandaceae )	M. platycaryae sp. nov.
-	Dorsal body setae unpigmented; with spinulose shafts; on plants of Betulaceae	3
3	In the alatae anterior part of head black; antennal segment III black; ultimate rostral segment 0.7-1.4 × as long as hind second tarsal segment	4
-	In the alatae anterior part of head pale; antennal segment III black in whole, or dorsal half, or only apex; ultimate rostral segment 0.6-0.9 × as long as hind second tarsal segment	5
4	In alatae: processus terminalis 0.6-0.8 × as long as the base of the segment; ultimate rostral segment 0.7-0.9 × as long as hind second tarsal segment; first tarsal segments with five ventral setae; in apterae and nymph: marginal setae of abdominal tergites V and VII minute or very short	M. taoi 1
-	In alatae: processus terminalis 0.9-1.2 × as long as the base of the segment; ultimate rostral segment 1.2-1.4 × as long as hind second tarsal segment; first tarsal segments with six ventral setae; in alatoid nymph: marginal setae of abdominal tergites V and VII slightly shortened than those on other tergites	M. pteleae
5	Some abdominal tergites with duplicated spinal setae and/or with an intercalary seta developed amidst spinal setae; processus terminalis 0.6-0.7 × as long as the base of the segment; in alatae antennal segment III black except for its very base, antennal segment IV sometimes with secondary rhinaria	M. alnicola
-	Abdominal tergites each with one pair of spinal setae; processus terminalis 1.0-1.2 × as long as the base of the segment; in alatae antennal segment III pale with apex, antennal segment IV without secondary rhinaria	M. sawashibae
6	In alatae: processus terminalis 0.9-1.0 × as long as the base of the segment; antennal segment IV with secondary rhinaria; ultimate rostral segment 0.9-1.0 × as long as hind second tarsal segment	M. corylicola
-	In alatae: processus terminalis 0.6-0.7 × as long as the base of the segment; antennal segment IV without secondary rhinaria; ultimate rostral segment 1.5-1.7 × hind second tarsal segment	M. yunnanensis