Monzenia Takahashi, 1962

Ko, Chiun-Cheng, 2017, A new genus and two new species of galling aphids (Hemiptera: Aphididae) from Distylium (Hamamelidaceae) in Taiwan, Zootaxa 4323 (2), pp. 209-218 : 210

Genus Monzenia Takahashi, 1962

Type species: Monzenia globuli ( Monzen, 1934) : Takahashi, 1962: 2.

Generic diagnosis of the alate viviparous adult. Descriptions of the genus are based on the morphology of alate viviparous adults in the gall generation, and are added to Takahashi’s description ( Takahashi, 1962). Body oblong, rather small to medium in size. Antennae 5-segmented, segment III a little broadened near basal part. Wings almost hyaline, broad, stigma lanceolate; media vein on forewings once-branched or unbranched, anal vein as thick as cubitus; cubitus and anal vein united together into long common vein at base, Cu1b thicker than Cu1 a. Hind wings usually with only one oblique vein, but sometimes media weakly developed. Tibiae imbricate, with distinct spinules ; tarsi with some spinules, 1st tarsi with 3-3-2 or 3-3-3 setae. Siphunculi small, mere rings, nearly as large as or slightly larger than spiracular plates. Cauda rounded or with a medial process . Anal plate bilobed.