Monographis

Huynh, Cuong & Veenstra, Anneke A., 2015, Description of a new species of Penicillate Millipede from the genus Monographis (Diplopoda: Polyxenidae) found in Vietnam, Zootaxa 3964 (4), pp. 460-474 : 471

Key to species of the genus Monographis

1a. 6th antennal article with 10 to 14 long sensilla anteriorly and 7 to 8 shorter sensilla posteriorly; the anterior margin of labrum with a row of long acute spines................................................................. M. kraepelini

1b. Not as above......................................................................................... 2

2a. 6th antennal article with 9 long sensilla anteriorly and 8 shorter sensilla posteriorly; the anterior margin of labrum with a row of long thin spines............................................................................. M. demangei

2b. Not as above......................................................................................... 3

3a. 6th antennal article with 12 to 20 sensilla forming a crescent shape............................................... 5

3b. Not as above.........................................................................................4

4a. 6th antennal article with 12 to 20 sensilla forming a triangular shape.............................................. 6

4b. Not as above......................................................................................... 7

5a. 7 long sensilla present anteriorly and 5 to 6 shorter sensilla posteriorly; anterior margin of labrum with row of tiny spines.......................................................................................... M. baihualingensis

5b. Not as above......................................................................................... 9

6a. With 3 internal sensilla..................................................................... M. yunnanensis

6b. With 5 internal sensilla.................................................................................7

7a. Telotarsus slender..................................................................................... 8

7b. Telotarsus robust........................................................................... M. tamoyoensis

8a. Telotarsus with strong, pointed anterior process................................................ M. queenslandicus

8b. Telotarsus with curved, enlarged base posterior process; anterior process absent........................ M. dongnaiensis

9a. Anterior margin of labrum with a row of spines....................................................... M. mirus *

9b. Otherwise............................................................................. .. M. annandalei ** ( Monographis mirus and M. annandalei had insufficient characters included in descriptions published by * Turk (1947) and ** Silvestri (1948) available for use in this key)