Monographis Attems, 1907

Huynh, Cuong, 2020, Three new species of penicillate millipedes from the Con Dao Islands of southeast Vietnam (Diplopoda, Lophoproctidae and Polyxenidae), Zootaxa 4759 (1), pp. 1-30 : 13-14

Genus Monographis Attems, 1907

Type species: Monographis kraepelini Attems 1907

Monographis Attems, 1907 ; Nguyen Duy-Jacquemin and Conde, 1967: 43

Other taxa included:

Within Monographis , twelve species have been described: Monographis kraepelini Attems, 1907 , from Java, Indonesia; Monographis annandalei ( Silvestri, 1948) and Monographis mira ( Turk, 1947) from India; Monographis demangei Nguyen Duy- Jacquemin and Condé, 1967, from Vietnam; Monographis tamoyoensis Condé and Nguyen Duy-Jacquemin, 1963 , from Brazil; Monographis baihualingensis Ishii and Yin, 2000 and Monographis yunnanensis Ishii and Yin, 2000 , from southern China; Monographis queenslandica Huynh and Veenstra, 2013 , from Australia; Monographis dongnaiensis Huynh and Veenstra, 2015 ; and newly added Monographis phuquocensis Huynh and Veenstra, 2018c , both were collected in Vietnam. Additionally, two subspecies, Monographis kraepelini malayana Nguyen Duy-Jacquemin and Condé, 1966 , and Monographis kraepelini sabahna Condé and Nguyen Duy-Jacquemin, 1984 , were collected from Malaysia.

Genus diagnosis: Each eye 8 ommatidia. Body 10 tergites, 9 pleural projections. 13 pairs of legs. 8 antennomeres, VI longest, VIII shortest with 4 sensory cones. Antennomere VI with 3–5 thick bacilliform sensilla among 12–20 thin bacilliform sensilla, sensilla located in anterior position longer than posterior ones, arranged in simple crescent-shape. A row of backward-pointing minute setae located in the posterior margin of labrum. Anterior margin of labrum with acute triangular shape setae. Lateral palp of gnathochilarium 1.25 longer than medial palp. Gnathochilarium lateral palp with 11 conical sensilla. Spine on tarsus 1 and 2. Coxal glands on coxae 8th and 9th.

Genus remarks: The genus Monographis is divided into two groups of species based on the arrangement of sensilla on antennomere VI in an either (1) simple crescent-shape with anterior sensilla longer than posterior ones ( M. kraepelini , M. annandalei , M. baihualingensis , M. demangei , M. mira and M. phuquocensis ) or (2) forming a triangular shape ( M. dongnaiensis , M. queenslandica , M. tamoyoensis and M. yunnanensis ).