Scolopocryptops melanostomus Newport, 1885: 406;
Otocryptops melanostomus: Chamberlin, 1920: 10;
Otocryptops melanostomus: Attems, 1930: 263;
Otocryptops melanostomus: B̧cherl, 1950: 194;
Otocryptops melanostomus: Attems, 1953: 146;
Otocryptops melanostomus: B̧cherl, 1959: 238;
Scolopocryptops melanostomus: Schileyko, 2007: 92;
Scolopocryptops melanostoma: Chagas, 2010: 164;
Scolopocryptops melanostoma: Schileyko, 2014: 154;
Scolopocryptops melanostoma: Schileyko & Stoev, 2016: 250;
Scolopocryptops melanostoma: Qiao, Xiao & Di, 2021: 28.
Comparative material. E Indonesia, West Papua Province, South Bird’s Neck: 1 ad (Rc 7503 in ZMMU), Kaimana 47 km E, Triton bay, environs Kamaka village, lake Kamakawalar, 03°45’33”S, 134°12’05”E, 90 m, primeval lowland rainforest on limestone, 09.09.2010, leg. M. Kalninsh; 1 ad (Rc 7504 in ZMMU), Kaimana 7–9 km NW, 25–200 m, primeval lowland rainforest on limestone, 05.09.2010, leg. D. Telnov.
Diagnosis. 4–6 basal antennal articles virtually lacking setae; cephalic plate not marginate laterally; tergites 3(4)–21(22) with paramedian sutures, ultimate tergite lacks lateral margination; LBS 7 lacks spiracles; femur, tibia and tarsus of the ultimate legs densely setose.
Description. For morphological details see Schileyko (2014) and Schileyko & Stoev (2016) (the most recent data on this species) who described specimens from Venezuela and East Indonesia (West Papua Province) respectively.
Range (by Schileyko & Stoev 2016). Mexico, Central America (Guatemala, Honduras, Costa Rica, Panama), Greater Antilles (Puerto Rico, Haiti), Lesser Antilles (Martinique, Saint Vincent and Grenadines, Trinidad), South America (Venezuela, Colombia, Ecuador, Peru, Brazil), Australasia (Fiji Islands), Indochina (Nicobar Island, Vietnam), Taiwan, Philippines, Eastern Indonesia, Papua New Guinea.
Remarks. Only Attems (1953) reported this widespread species from Vietnam (Langbiang Mountains in Lam Dong Province). Attems (1953) considered the complete absence of leg’s accessory spines to be a diagnostic character for S. melanostoma, but Schileyko & Stoev (2016: 250) described the corresponding rudiments (recognizable at x85 magnification) in material from West Papua. In fact, the main diagnostic character of this species is the absence of any lateral margination of the tergites, including the ultimate.