Chaitoregma Hille Ris Lambers & Basu, 1966

Wang, Yizhe & Huang, Xiaolei, 2024, Taxonomic notes on the genus Chaitoregma (Hemiptera, Aphididae, Hormaphidinae), with description of a new species from China, ZooKeys 1218, pp. 35-47 : 35-47

Genus Chaitoregma Hille Ris Lambers & Basu, 1966

Chaitoregma Hille Ris Lambers & Basu, 1966: 15; Eastop and Hille Ris Lambers 1976: 143; Ghosh et al. 1977: 102; Blackman and Eastop 1984: 258; Remaudière and Remaudière 1997: 182; Qiao and Zhang 2003: 146; Aoki and Kurosu 2010: 2; Nieto Nafría et al. 2011: 171.

Chaetoregma Tao, 1991: 41. (incorrect subsequent spelling).

Generic diagnosis.

In apterae, body round, flat, and strongly sclerotized. Head with 1 pair of frontal horns, cylindrical with broadly rounded tips, nymph with blunt frontal horns from birth. Head plus pronotum, meso- and metanotum, and abd. tergites I and VIII mutually free, the other abdominal tergites completely fused without sutures. Body dorsum with irregularly shaped wax facets, sometimes wax plates appear in groups along the abdominal margin. Eyes with 3 facets. Antennae 4 - or 5 - segmented, with primary rhinaria on the terminal segment. Rostrum short and thick. Ultimate rostral segment blunt, wedge-shaped, with 3 pairs of long primary setae. Legs normal, claws normal, first tarsal chaetotaxy: 4, 3, 2. Siphunculi pore-like, not situated on hairy cones. Cauda knobbed and constricted at base. Anal plate bilobed.

Distribution.

China (Fujian, Guangdong, Taiwan, Yunan), India (Darjeeling).

Host plants.

Various species of Bambusoideae.

Type species.

Oregma tattakana Takahashi, 1925 by original designation.