Nicotikis Marseul, 1883

Zinchenko, Vadim, 2014, Review of species of the genus Nicotikis Marseul, 1883 (Coleoptera: Histeridae) from Southeast Asia, Zootaxa 3860 (5), pp. 487-492 : 491

Key to species of Nicotikis Marseul, 1883

(modified from Mazur (2007))

1. Elytra with 3 complete dorsal striae....................................................................... 2

- Elytra with more than 3 complete dorsal striae............................................................... 5

2. Outer lateral pronotal stria not united with apical stria. Sutural stria present on apical 2/5, prolonged along elytral apex. Indone- sia: Sumatra, Borneo............................................................ N. incisipyge ( Marseul, 1883) .

- Outer pronotal stria united with apical atria. Sutural stria short, present on apical half, abbreviated on basal 1/7 to 1/5 without prolongation......................................................................................... 3

3. Fourth and fifth striae short, extending up to one third the length of the elytra. Sutural stria apically not shortened. Malaysia: Pahang........................................................................... N. lackneri Mazur, 2007

- Fourth and fifth striae longer than one third or more than half the elytral length. Sutural stria apically shortened........... 4

4. Fourth stria in front of the elytra shorter than sutural stria. Fifth stria at base slightly shorter or equal in length to sutural stria. Antennal club with one clear V-shaped suture, basal suture widely interrupted medially. Thailand, Vietnam … N. kabakovi sp. n.

- Fourth stria in front of the elytra equal to or slightly longer than sutural stria. Fifth stria at base equal to or longer than sutural stria. Antennal club with two V-shaped sutures narrowly interrupted medially. Thailand................... N. korshunovi

5. Each elytron with six complete striae. Sutural stria united with fifth at base. India............. N. lineipennis (Lewis, 1908) .

- Each elytron with four complete dorsal striae. Sutural stria not united with fifth................................... 6.

6. Upper surface finely and sparsely punctured. nearly smooth. Fifth and sutural stria of equal length reaching to the middle. Viet- nam............................................................................. N. gratus Cooman, 1941 .

- Upper surface densely punctured. Sutural stria longer, abbreviated on basal quarter. Fifth stria present on apical quarter. Malay- sia: Sabah......................................................................... N. bellator Mazur, 2007 .