Three new species of penicillate millipedes from the Con Dao Islands of southeast Vietnam (Diplopoda, Lophoproctidae and Polyxenidae) Author Huynh, Cuong text Zootaxa 2020 2020-04-01 4759 1 1 30 journal article 10.11646/zootaxa.4759.1.1 f75b13f6-a898-42ff-93a4-2d177da2207f 1175-5326 3735855 8C3F94C9-3923-43F4-918A-6A1CA92F1F49 Genus Alloproctoides Marquet and Condé, 1950 Type species: Alloproctoides dawydoffi ( Attems, 1938 ) ; Monographis kraepelini dawydoffi Attems, 1938 . Other taxa included: Alloproctoides remyi Marquet and Condé, 1950 ; Alloproctoides xenochilus Nguyen Duy-Jacquemin and Condé, 1982 ; Alloproctoides dawydoffi sineligulatus Nguyen Duy-Jacquemin and Condé, 1982 ; Alloproctoides consonensis n. sp. All members in Lophoproctidae are characterised by the absence of eyes, the morphology of antennomeres VII and VIII (being of equal length), 4 sensory cones reduced in size and simple claws. Ishii et al. (1999) provided a key to the 5 genera in Lophoproctidae based on the labrum structure and the number of sensilla on the antennomere VI. Five genera of the family are: Alloproctoides Marquet and Condé, 1950 ; Ancistroxenus Schubart, 1947 ; Lophoproctinus Silvestri, 1948 ; Lophoproctus Pocock, 1894 ; and Lophoturus Brolemann, 1931 . Members from genus Alloproctoides are characterised by 0 or 1 pair of linguiform processes at the median cleft of labrum, and antennomere VI with 2 long thick bacilliform sensilla and 3–10 short thin bacilliform sensilla. Genus diagnosis : Ommatidia absent. 13 pairs of legs. Body with 10 tergites, 9 pleural projections ( Figs. 4A and 4B ). Antennomere VI longest, VII and VIII equal length. 4 sensory cones reduced in size ( Fig. 5A ). Antennomere VI with conical sensillum located in posterior position, with 2 long thick bacilliform sensilla, and 3–5 short thin bacilliform sensilla located transversely ( Fig. 5 ). Coxal gland absent. Leg claw simple. Pair of linguiform processes at median cleft of labrum, or absent ( Fig. 4D ).