taxonID	type	description	language	source
E064F840DA748C79BDD4FD0CFD1B939B.taxon	materials_examined	Material examined. Holotype: adult female (ISLA 4014) from Lapa do Córrego do Vieira cave, Caraí, Minas Gerais (17 ° 9 ′ 5.3 ″ S / 41 ° 30 ′ 15.5 ″ W), Brazil, 10 / VII / 2004, leg. R. L. Ferreira.	en	Souza, Maysa F. V. R., Ferreira, Rodrigo L. (2016): Two new troglobiotic palpigrades (Palpigradi: Eukoeneniidae) from Brazil. Zootaxa 4171 (2): 246-258, DOI: 10.11646/zootaxa.4171.2.2
E064F840DA748C79BDD4FD0CFD1B939B.taxon	etymology	Etymology. The specific name is a noun in apposition that refers to the Jequitinhonha river, in whose drainage basin the type locality is located. This river is one of the most important in the north of Minas Gerais state.	en	Souza, Maysa F. V. R., Ferreira, Rodrigo L. (2016): Two new troglobiotic palpigrades (Palpigradi: Eukoeneniidae) from Brazil. Zootaxa 4171 (2): 246-258, DOI: 10.11646/zootaxa.4171.2.2
E064F840DA748C79BDD4FD0CFD1B939B.taxon	diagnosis	Diagnosis. This species differs from all others of the genus Eukoenenia by the following combination of characteristics: prosomal lateral organs with 5 pointed blades; metapeltidium with 3 + 3 setae (t 1, t 2, t 3) with similar lengths; 6 deuto-tritosternal setae in U-shaped arrangement; chaetotaxy of coxae I-IV: 12 setae, 14 (4 thick and 10 normal setae), 14 (5 thick and 9 normal setae), 9 (1 thick and 8 normal setae); basitarsus IV with six setae; 2 + 2 thickened setae (a 1 and a 2) between a pair of normal slender setae (s) on opisthosomal sternites IV – VI; opisthosomal tergites II ‒ VI with 2 pairs of t setae (t 1 and t 2) between a pair of normal slender setae (s). Values of indices: bta / ti 0.89; B / bta 1.8.	en	Souza, Maysa F. V. R., Ferreira, Rodrigo L. (2016): Two new troglobiotic palpigrades (Palpigradi: Eukoeneniidae) from Brazil. Zootaxa 4171 (2): 246-258, DOI: 10.11646/zootaxa.4171.2.2
E064F840DA748C79BDD4FD0CFD1B939B.taxon	description	Description of female. Total body length (without flagellum): 1480 µm. Prosoma. Frontal organ (43 µm long) with two distally rounded branches, with irregular reticulation (Fig. 1). Lateral organ with five blades (longest 22 µm), reticulated and distally pointed (Fig. 2). Propeltidium 298 µm long; with 10 + 10 short setae in five rows (Fig. 3). Metapeltidium with 3 + 3 setae (t 1, t 2, t 3) of similar lengths (33 µm, 33 µm, 31 µm). Six deuto-tritosternal setae in U-shaped arrangement (Fig. 4). Hand of chelicera with 4 dorsal setae, 1 middle seta, 1 ventral seta and 1 seta inserted next to teeth of fixed finger; dorsal length of basal segment 200 µm. Number of teeth on fingers not determined. Coxal chaetotaxy: coxa I with 12 setae, coxa II with 4 thick and 10 normal setae (the longest 103 µm), coxa III with 5 thick and 9 normal setae (the longest 128 µm) and coxa IV with 1 thick and 8 normal setae (Figs. 5 – 8). Pedipalp: ta 3 with 2 forked setae. Length of pedipalp articles (µm): ti 152.5; bta 1 67.5; bta 2 75; ta 1 37.5; ta 2 50; ta 3 75. Leg I: with 7 trichobothria in usual arrangement and 9 forked setae (fs): 1 on ta 2, bta 4, bta 2 and bta 1 and 5 on ta 3 (arranged as fs 1 / fs 2 / fs 3 / fs 4 + 5): fs 1 is inserted in proximal half of the segment and slightly proximal to rod seta (rs) (fs 1 / rs = 0.29); macroseta (m) inserted halfway between fs 1 and fs 2 (Fig. 9 A). Bta 3 2.8 times longer than wide, with 3 setae (grt 55 µm; r 75 µm). Seta r slightly shorter than segment (77.5 / 75 µm, t / r = 0.72), inserted in proximal third and surpassing distal margin of segment (72.5 / 17.5 µm, s / er = 4.1) (Fig. 10). Measurements of leg I (µm): ti 165; bta 1 + 2 142.5; bta 3 77.5; s 72.5; a 27.5; grt 55; r 75; er 17.5; bta 4 65; ta 1 35; ta 2 40; ta 3 137.5. Leg IV: basitarsus long, 7.3 times longer than wide, with 6 setae (grt, gla, r, esp and 2 esd). Stiff seta r 2.4 times shorter than the tergal edge of segment (165 / 67.5 µm, t / r = 2.4) and inserted in its distal half (165 / 95 µm, t / er = 1.7); esp, gla and grt inserted in proximal half, grt level with esp, gla more distal (Fig. 11). Measurements of leg IV (µm): ti 185; bta 165; ta 1 65; ta 2 87.5; s 157.5; a 22.5; grt 52.5; gla 87.5; r 67.5; er 95. Values of indices: bta / ti 0.89; gla / grt 1.6; B / bta 298 / 165 1.8. Opisthosoma. Tergites II – VI with 3 + 3 dorsal setae, two pairs of t setae (t 1, t 2) between a pair of slender setae (s) (Fig. 12). Sternite III with 2 + 2 setae. Sternites IV – VI each with 2 + 2 thickened and conical (width decreasing slightly from base to apex) setae in middle (a 1 and a 2, 52.5 – 55 µm), between a pair of slender setae (s, 42.5 – 45 µm); a pair of pores present between a 1 setae on sternites IV ‒ VI (Fig. 13). Segments VII – X with 8 setae each and segment XI with 7 setae. Female genitalia: Chaetotactic formula 7 + 4 / 3. First lobe with 11 + 11 setae in 5 transverse rows: 2 + 2 sternal setae (st 1, st 2) followed by 2 + 2, 2 + 2, 2 + 2, 1 + 1 and 4 + 4 distal setae, of which a 1, a 2, a 3 and a 4 measure 19, 21, 27 and 34 µm, respectively (Fig. 14). Second lobe with 3 + 3 setae (x, y, z), measuring 24, 41 and 38 µm, respectively (Fig. 15); cuticular spines present (Figs 15 ‒ 16); 6 glandular orifices on one side and 5 on the other (Figs. 15 and 17). Shape of spermatheca as shown in Figs 16 and 17.	en	Souza, Maysa F. V. R., Ferreira, Rodrigo L. (2016): Two new troglobiotic palpigrades (Palpigradi: Eukoeneniidae) from Brazil. Zootaxa 4171 (2): 246-258, DOI: 10.11646/zootaxa.4171.2.2
E064F840DA708C70BDD4FA97FAFE96DF.taxon	materials_examined	Material examined. Holotype: adult male (ISLA 4135) from Gruta Cazanga cave, Arcos, Minas Gerais (20 ° 16 ʹ 58.9 ʺ S / 45 ° 35 ʹ 46.5 ʺ W), Brazil, 30 / I / 2009, leg. R. L. Ferreira.	en	Souza, Maysa F. V. R., Ferreira, Rodrigo L. (2016): Two new troglobiotic palpigrades (Palpigradi: Eukoeneniidae) from Brazil. Zootaxa 4171 (2): 246-258, DOI: 10.11646/zootaxa.4171.2.2
E064F840DA708C70BDD4FA97FAFE96DF.taxon	etymology	Etymology. The specific name is a Latin word meaning “ living in a cave ” and refers the troglobiotic nature of the species.	en	Souza, Maysa F. V. R., Ferreira, Rodrigo L. (2016): Two new troglobiotic palpigrades (Palpigradi: Eukoeneniidae) from Brazil. Zootaxa 4171 (2): 246-258, DOI: 10.11646/zootaxa.4171.2.2
E064F840DA708C70BDD4FA97FAFE96DF.taxon	diagnosis	Diagnosis. This species differs from all others of the genus Eukoenenia by the following combination of characteristics: 5 pointed blades in prosomal lateral organ; metapeltidium with 3 + 3 setae (t 1, t 2, t 3), t 1 and t 3 of similar length and t 2 longest; 5 deuto-tritosternal setae in U-shaped arrangement; chaetotaxy of coxae I-IV: 14 setae, 13 (4 thick and 9 normal setae), 13 (5 thick and 8 normal setae), 8 (2 thick and 6 normal setae); basitarsus IV with 6 setae; 2 + 2 thickened setae (a 1 and a 2) between a pair of normal slender setae (s) on opisthosomal sternites IV – VI; opisthosomal tergites II – VI with 2 pairs of t setae (t 1 and t 2) between a pair of normal slender setae (s); male genitalia with 13 + 13 setae on the first lobe (including 2 + 2 fusules), 4 + 4 on the second and 4 + 4 on the third. Values of indices: bta / ti 0.86; B / bta 2.3.	en	Souza, Maysa F. V. R., Ferreira, Rodrigo L. (2016): Two new troglobiotic palpigrades (Palpigradi: Eukoeneniidae) from Brazil. Zootaxa 4171 (2): 246-258, DOI: 10.11646/zootaxa.4171.2.2
E064F840DA708C70BDD4FA97FAFE96DF.taxon	description	Description of male. Total body length: 1410 µm (without flagellum). Prosoma. Frontal organ (45 µm long) with two branches distally rounded, with irregular reticulation and inserted on a conical base (Fig. 18). Lateral organ with 5 long blades (longest 52 µm), reticulated and distally pointed (Fig. 19). Five deuto-tritosternal setae in U-shaped arrangement (Fig. 20). Propeltidium 325 µm long; with 10 + 10 short setae in 5 rows (Fig. 21). Metapeltidium with 3 + 3 setae (t 1, t 2, t 3), t 1 and t 3 of similar length (57.5 µm, 55 µm), t 2 longest (100 µm). Hand of chelicera with 5 dorsal setae, 1 ventral seta and 1 seta inserted near teeth of fixed finger; both fingers with nine teeth (Fig. 22); dorsal length of basal segment 200 µm. Coxal chaetotaxy: coxa I with 14 setae, coxa II with 4 thick and 9 normal setae (the longest 100 µm), coxa III with 5 thick and 8 normal setae (the longest 122 µm) and coxa IV with 2 thick and 6 normal setae (Figs. 23 – 26). Pedipalp: ta 3 with 2 forked setae. Length of pedipalp articles (µm): ti 150; bta 1 55; bta 2 67.5; ta 1 37.5; ta 2 50; ta 3 75. Leg I: with 7 trichobothria in usual arrangement and 9 forked setae (fs): 1 on ta 2, bta 4, bta 2 and bta 1 and 5 on ta 3 (arranged as fs 1 / fs 2 / fs 3 / fs 4 + 5): fs 1 inserted in distal half of segment, at the same level as rod seta (rs) (fs 1 / rs = 0.28); macroseta (m) inserted halfway between fs 1 and fs 2 (Fig. 9 B). Bta 3 2.5 times longer than wide, with 3 setae (grt 77.5 µm; r 72.5 µm). Seta r similar in length to the segment (75 / 72.5 µm, t / r = 1.03), inserted in proximal third and surpassing distal margin of segment (70 / 20 µm, s / er = 3.5) (Fig. 27). Measurements of leg I (µm): ti 160; bta 1 + 2 115; bta 3 75; s 70; a 30; grt 77.5; r 72.5; er 20; bta 4 62.5; ta 1 40; ta 2 42.5; ta 3 145. Leg IV. Basitarsus long, 5.5 times longer than wide, with 6 setae (grt, gla, r, esp and 2 esd). Stiff seta r 2.1 times shorter than the tergal edge (137.5 / 65 µm, t / r = 2.1) and inserted approximately in middle of segment (137.5 / 71 µm, t / er = 1.9); esp, gla and grt inserted in proximal half, grt level with gla, esp more proximal (Fig. 28). Measurements of leg IV (µm): ti 160; bta 142; ta 1 54; ta 2 80; s 130; a 25; grt 94; gla 75; r 65; er 71. Values of indices: bta / ti 0.86; gla / grt 0.80; B / bta 325 / 142 2.3. Opisthosoma. Tergites II – VI with 3 + 3 dorsal setae, 2 pairs of t setae (t 1, t 2) between a pair of slender setae (s). Sternite III with 2 + 2 setae. Sternites IV – VI each with 2 + 2 thickened and cylindrical setae (basal and apical parts of similar width) (a 1 and a 2; 49 – 53 µm) in middle between a pair of slender setae (s; 56 – 59 µm) (Fig. 29). Segments VII – XI with 8 setae each. Only the first flagellar segment remains. It has a row of ten long setae in its distal half and a row of spike-like setae at the apex (Fig. 30). Male genitalia. Chaetotactic formula 2 + 9 + 2 f / 4 / 4. First lobe with 13 + 13 setae, (including 2 + 2 fusules). Fusules close to each other, with a dilated conical base (f 1 48 µm; f 2 55 µm), a setiform end and internal canals (represented by dotted lines in Fig. 32). Second lobe with a simple, sharp apex (without bifurcation), with 4 + 4 setae (a, b, c, d). Third lobe also subtriangular, well developed, with 4 + 4 setae (w, x, y, z), with a bifurcate tip (Fig. 31).	en	Souza, Maysa F. V. R., Ferreira, Rodrigo L. (2016): Two new troglobiotic palpigrades (Palpigradi: Eukoeneniidae) from Brazil. Zootaxa 4171 (2): 246-258, DOI: 10.11646/zootaxa.4171.2.2
