Aspidophorodon Verma, 1967

Xu, Ying, Jiang, Li-Yun, Chen, Jing, Kholmatov, Bakhtiyor Rustamovich & Qiao, Ge-Xia, 2022, Six new species of Aspidophorodon Verma, 1967 (Hemiptera, Aphididae, Aphidinae) from China, ZooKeys 1106, pp. 1-55 : 1

Aspidophorodon Verma, 1967

Aspidophorodon Verma 1967: 507. Type species: Aspidophorodon harvense Verma 1967; by original designation. Miyazaki 1971: 183; Eastop and Hille Ris Lambers 1976: 95; Remaudière and Remaudière 1997: 73; Zhang et al. 1999: 349; Blackman and Eastop 2006: 1098; Stekolshchikov and Novgorodova 2010: 44; Nieto Nafría et al. 2011: 145; Chen et al. 2015: 557.

Indotuberoaphis Chakrabarti & Maity 1984: 198. Type species: Indotuberoaphis sorbi Chakrabarti & Maity 1984; by original designation.

Margituberculatus Zhang, Zhong & Zhang 1992: 381. Type species: Margituberculatus longituberculatum Zhang, Zhong & Zhang 1992; by original designation.

Raychaudhuriella Chakrabarti 1978: 355. Type species: Raychaudhuriella myzaphoides Chakrabarti 1978: 357; by original designation.

Generic diagnosis.

Head with three processes on frons; median frontal tubercle in apterae distinctly protuberant, hemispherical, rectangular, or forked, sometimes with a depression at the middle; antennal tubercles undeveloped, but each with a cylindrical, finger-shaped, or long horn-shaped process at inner apex, the process higher or lower than median frontal tubercle in apterae. Body dorsum with various markings in apterous viviparous females: wrinkles, irregular polygonal reticulations, oval or semicircular sculptures, or small papillate tubercles. Antennae 4- or 5-segmented (rarely 6-segmented) in apterae, 5- or 6-segmented in alatae. Ant. I usually rounded or projected to short cylindrical at inner apex. Secondary rhinaria present on antennal segments III-V in alatae. SIPH spoon-shaped, broad at base, thin at the middle, slightly swollen distally, obliquely truncated at tip, without flange. Cauda tongue-shaped or elongate conical, slightly constricted near the middle, sometimes with a constriction at base, with 4-5 setae, rarely 6-11.

Distribution.

Canada, China, India, Japan, Russia (Sakhalin, the Altai Republic, and the Kuril Islands), and Kashmir region.

Host plants.

Rosaceae ( Cotoneaster , Potentilla , Sorbus , Spiraea ), and Salicaceae ( Salix ), rarely on Polygonaceae ( Polygonum ).

Comments.

The genus Aspidophorodon includes two subgenera, the nominate subgenus and subgenus Aspidophorodon Eoessigia . The most important difference between the two subgenera is the presence of at least one spinal process on abdominal tergite VIII in Aspidophorodon (Eoessigia) , whereas no such spinal process is found on members of the nominate subgenus. See Chen et al. (2015) for a key to subgenera.