Alfieriella, Wittmer, 1935

Chen, Yan-Dong, Leschen, Richard A. B., Bai, Ming & Yang, Xing-Ke, 2020, A new Himalayan species of Alfieriella (Coleoptera: Cryptophagidae), Zootaxa 4819 (3), pp. 571-581 : 577

Key to described species of Alfieriella

1 Elytra wider than pronotum............................................................................. 2

- Elytra narrower than pronotum..................................................... A. laticollis ( Reitter, 1891)

2 Sides of pronotum rounded in dorsal view; apex of antennal club acute.......................................... 3

- Sides of pronotum angled; apex of antennal club obtuse.................................. A. naxiana ( Reitter, 1884)

3 Posterior angle of pronotum obtuse....................................................................... 4

- Posterior angle of pronotum rounded, not angled; parameres with long setae at the apex and apex of posterior section incised...................................................................................... A. senguptai sp. n.

4 Body form oval, elytra together less than 1.6× longer than wide; length 1.30–1.35 mm ...... A. rabinovitchi Wittmer, 1935

- Shorter (1.20–1.25 mm); body form slender, elytra together 1.6 times longer than wide.................................................................................................... A. denticulata ( Baudi di Selve, 1870)