Troglobius species	
Features	albertinoi sp. nov.	brasiliensis	coprophagus	ferroicus	
Dorsal Head	An2a	mes	–	–	–	
	A0	mes	mic	?	mes/mic	
	A1	–	mic	mic	–	
	A2	mes	mic	mic	mic	
	Ps3	–	mic	mic	–	
	Pm1	mes	–	mes	–	
	Pm3	–	–	mic	mic	
	Pp1	mes	–	mic	mic	
	Pp2 (mac)	–	–	mic	–	
Mesothorax	m5	–	mic	mac	mic	
Metathorax	a6	mic	mac	mac	mic	
	p3	mic	mac	mic	mic	
Abdomen II	m3	mac	–	mac	mac	
	p5			–	mac	–	mic	
Abdomen III	p6	mic	mac	mac	mac	
	pm6	mac	mic	mac	mac	
Abdomen IV	A5	mac	mac	mic	mac	
	B6	mes	mic	mic	–	
	C4	mes	mic	–	mic	
	E2	mac	mac	–	mac	
	F2	mac	mic	–	mac	
	posterior margin	1psp	–	3psp	4psp	
		1mes; 1mic				
Trochanteral organ	11	30	16	34	
Ungual unpaired teeth	1	2	0	1	
Collophore chaetotaxy	anterior	2C	2S	2S	2C	
	posterior	19S	2C; 24S	13S	12C; 13S	
Dens posterior face	internal	5C; 3B; 2A	21C	9P; 1B	21P	
	median	5C; 1S; 3P	22C	2B; 11C	1P; >25C	
	external	8C	19C	11B	>25C	
Mucro lamella teeth	internal
dorsal	1	14	0	1	
		8–12	12–14	19	10–15	

Table 1. Comparison between the main morphological characteristics of Troglobius spp. Abbreviations: mac, macrochaeta; mes, mesochaeta; mic, microchaetae; –, chaeta absent; psp, pseudopore; S, smooth; C, ciliate; B, barbulate; P, palmate; A, aristate.