Entomobrya pseudomaculata, Viana & Morais & Cipola, 2024
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publication ID |
https://doi.org/ 10.11646/zootaxa.5452.1.1 |
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publication LSID |
lsid:zoobank.org:pub:093738EB-2BEE-4DFA-B930-FAC1FBF08FA4 |
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persistent identifier |
https://treatment.plazi.org/id/062587E9-C709-FE60-FF7C-C744FE552062 |
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treatment provided by |
Plazi |
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scientific name |
Entomobrya pseudomaculata |
| status |
sp. nov. |
Entomobrya pseudomaculata sp. nov. Viana & Cipola
Figs 67–70 View FIGURE 67 View FIGURE 68 View FIGURE 69 View FIGURE 70 , 72 View FIGURE 72 , Table 3
Type Material. Holotype female on slide ( INPA-CLL 0000351 ): Brazil, Amazonas state, Barcelos municipality, near to “Negro” river and “Urubu” lake, 00°15’11.86”S, 64°02’31.25”W ( Fig. 72 View FIGURE 72 ), 33 m, 08–09.xii.2012, pitfall-trap, JMC Nascimento coll. Four paratypes on slides: 1 female and 1 male ( INPA-CLL 0000352–53 ), 1 juvenile ( MNRJ), same date as holotype, 1 male ( CC / UFRN), idem, except near to “ Caures ” river and “ Santo Alberto de Trapani ” sanctuary, 01°19’38.55”S, 62°06’52.28”W, 13 m, 13.xii.2012. GoogleMaps
Other examined material. Two males and 1 female on slides ( INPA): Amazonas state, Itacoatiara municipality, Federal University of Amazonas, campus II, 03°05’37.68”S, 58°27’31.78”W ( Fig. 72 View FIGURE 72 ), 30 m, 29.xii.2017, malaise-trap, AC Barata coll. GoogleMaps One male and 1 female on slides ( INPA): Novo Airão municipality, “ Mato Grosso ” creek, 02°49’00”S, 60°55’08”W, 35 m, 29–31.iii.2013, yellow plate-trap, JT Câmara, JA Rafael & AC Maldaner coll. GoogleMaps One male on slide ( INPA): Paricatuba municipality, near to “Uneiuxi” river, 00°36’55.49”S, 65°8’27.48”W, 34 m, 07.xii.2012, pitfall-trap, JMC Nascimento coll. GoogleMaps One female on slide ( INPA): Presidente Figueredo municipality, “Maroca” waterfall, “AM-270” road, km 18, 02°00’08”S, 59°52’04”W, 152 m, 30.viii.2014, plate-trap, NG Cipola & FGL Oliveira coll. GoogleMaps Two juveniles on slides and 11 specimens in alcohol ( INPA): Santa Isabel do Rio Negro municipality, “ Negro ” river, 0°28’58.05”S, 64°46’23.91”W, 35 m, 04–05.xii.2012, pitfall-trap, JMC Nascimento coll. GoogleMaps One male and 1 female on slide ( INPA): Roraima state, Bonfim municipality, “Arraia” river, 3°21’4.12”N, 59°54’13.84”W, 79 m, 21.ii.2013, yellow plate-trap, JMC Nascimento coll. GoogleMaps
Diagnosis. Body with bluish spots, usually with a V-shaped spot on head, irregular dorsal spots (joined or not) on Th II to Abd III and two transverse dark bands on Abd IV ( Figs 67A–J View FIGURE 67 ), Ant IV without the apical bulb; pl1–2 smooth and bifurcated ( Fig. 68B View FIGURE 68 ); head macrochaetotaxy with 8–9 ‘ An ’, 3 ‘ A ’, 1–3 ‘ M ’, 9–10 ‘ S ’, 1 ‘ Ps ’, 4 ‘ Pa ’, 2 ‘ Pi ’, 1–2 ‘ Pm ’, 1 ‘ Pmp ’, 4 ‘ Pp ’, 1 ‘ Ppe ’ and 4 ‘ Pe ’ mac, respectively ( Fig. 68C View FIGURE 68 ); labral inner papillae with 1–3 projections and outer with 2 projections ( Fig. 68B View FIGURE 68 ); labial papilla E l.p. finger-shaped and not reaching the base of a.a.; Th II internally with 11 anterior, 5–7 median and 16–20 posterior mac; Th III–Abd I with 21–25 and 9–11 mac, respectively; Abd II–III with 3–5 and 0 inner mac, respectively; Abd IV with 19–24 inner and 16–20 outer mac ( Figs 69A–C View FIGURE 69 ); unguiculus III ai lamella excavate and pe serrated ( Fig. 70D View FIGURE 70 ); collophore anteriorly generally with 3 distal mac ( Fig. 70E View FIGURE 70 ); dens distally with 2 rows of large modified chaetae; mucro proximal tooth larger than the distal one, basal spine reaching the proximal tooth.
Description. Total length (head + trunk) of specimens 2.17–2.38 mm (n=4), holotype 2.38 mm. Specimens with irregular bluish spots on body, head dorsally with a V-shaped anterior spot, Ant IV strongly pigmented or with reduced pigments distally, trunk with two transverse dark bands on Abd IV (in the median and posterior parts); colophore, legs and manubrium pigmented or not; eyepatches black ( Figs 67A–J View FIGURE 67 ).
Head. Antenna shorter or subequal to the trunk length ( Figs 67F–J View FIGURE 67 ), ratio antennae: trunk = 0.80–1.02: 1 (n=3), holotype 0.80: 1; antennal ratio as I: II: III: IV = 1: 1.29–1.74: 1.04–1.10: 1.70–2.04 (n=4), holotype 1: 1.36: 1.07: 1.85. Ant IV weakly annulated on its distal 3/4 and devoid of apical bulb, with at least 4 apical finger-shaped sens and numerous sens of different sizes. Ant III sense organ with 2 finger-shaped sens, 3 guard sens, 3 elongated sens and at least 6 finger-shaped sens. Ant II dorsally with about 6 elongated sens and 4 mac; ventrally with 3 apically acuminate mac ( Fig. 68A View FIGURE 68 ). Ant I dorsally with 3 elongated sens, 5 mac and 3 smooth mic at the base ( Fig. 68A View FIGURE 68 ). Eyes A and B larger, G and H slightly smaller than the others, with 6 interocular chaetae (q, v, s, p, r, t); head dorsal chaetotaxy ( Fig. 68C View FIGURE 68 ) with 8–9 ‘ An ’, 3 ‘ A ’, 1–3 ‘ M ’, 9–10 ‘ S ’, 1 ‘ Ps ’, 4 ‘ Pa ’, 2 ‘ Pi ’, 1–2 ‘ Pm ’, 1 ‘ Pmp ’, 4 ‘ Pp ’, 1 ‘ Ppe ’ and 4 ‘ Pe ’ mac, respectively. Clypeal formula with 4 (l1–2), 12–16 (f), 5 (pf0–2) ciliate chaetae, l2 longer, l1–2 apically acuminate, others subequal ( Fig. 68B View FIGURE 68 ). Labral inner papillae with 1–3 equal or unequal projections, outer papillae with 2 subequal projections and smaller than the inner papillae ( Fig. 68D View FIGURE 68 ). Prelabral chaetae smooth, pl1 equally or subequally bifurcated, pl2 unequally bifurcated ( Fig. 68B View FIGURE 68 ). Labial papilla E l.p. finger-shaped and not reaching the base of a.a.; e6 appendix absent. Maxillary palp b.c. subequal to t.a.; Basolateral and basomedian labial fields with M1–2, R, E, L1–2 ciliate, M2 and R smaller than the others, both present or absent. Cephalic groove with 10 ciliate chaetae of different sizes; postlabial formula with 4 (G1–4), 4 (X2, X3, X, X 4), 4 (H1–4) chaetae plus 2 chaetae between the series ( Fig. 68E View FIGURE 68 ).
Thorax chaetotaxy ( Fig. 69A View FIGURE 69 ). Th II a, m and p series (excluding the anterior collar) with 11, 5–7 and 16–20 mac, respectively. Th III a, m and p series with 5–7, 5 and 11–13 mac, respectively. Ratio Th II: III = 1.90–1.62: 1 (n=4), holotype 1.70: 1.
Abdomen chaetotaxy ( Figs 69B–C View FIGURE 69 ). Abd I a, m and p series with 0–2, 8 and 1 mac, respectively. Abd II a, m and p series with 0–2, 5 and 2 mac, respectively, plus el mac laterally. Abd III a, m and p series with 0–1, 2–3 and 1–2 mac, respectively, plus 2 extra mac laterally. Abd IV with 19–24 inner mac of A–C series and 16–20 outer mac of T–Fe series; about 13 sens (ps type I and others type II) and 27 posterior mes. Abd V a, m, pa, p and pp series with 2, 3, 2, 5 and 0–1 mac, respectively. Ratio Abd III: IV = 1: 9.34–10.82 (n=4), holotype 1: 10.82.
Legs ( Figs 7A–D View FIGURE 7 ). Subcoxa I with 3 chaetae and 2 psp; subcoxa II with an anterior row of 9 chaetae and about 25 anterior chaetae; posterior row of 5 chaetae, 1 anterior chaeta, and 4 psp; subcoxa III with one row of 9 chaetae, about 21 anterior chaetae and 2 psp ( Figs 70A–B View FIGURE 70 ). Trochanteral organ with 30 spine-like chaetae, 5 anterior, 4 posterior, 15 internal, 1 apical and 5 on the distal arm ( Fig. 70C View FIGURE 70 ). Tibiotarsus I–III with 8 inner finely ciliate mac; 1 outer apically acuminate mac at the base. Unguis b.t. on proximal 1/3, m.t. on distal 1/3 and equal to b.t., a.t. minute and on distal 1/8. Unguiculus I–III lamellae (ae, ai, pe, pi) smooth and acuminate, except on unguiculus III ai excavate and pe serrated; ratio unguis: unguiculus = 1: 0.56. Tibiotarsus III smooth chaeta 1.15 longer than the unguiculus; tenent hair 0.93 smaller than the unguis ( Fig. 70D View FIGURE 70 ).
Collophore ( Fig. 70E View FIGURE 70 ). Anterior side with about 32 ciliate chaetae, 3 distal mac and about 28 chaetae of different sizes widely distributed on the corpus; posterior side with about 72–73 ciliate chaetae of different sizes widely distributed on the corpus (about 6 unpaired) and distally with 1 smooth chaeta; lateral flap with 22 chaetae, 8 smooth and 14 ciliate.
Furcula ( Figs 70F–G View FIGURE 70 ). Manubrium ventrally with 2 subapical and about 32 distal ciliate chaetae of different sizes ( Fig. 70F View FIGURE 70 ). Manubrial plate dorsally with 7–8 chaetae of different sizes and 3–4 psp ( Fig. 70G View FIGURE 70 ). Dens dental lobe with 2 (bs1 and bs2) thicker ciliate chaetae, bs1 subequal to bs2. Dens tightly crenulate on its distal 1/8; distally with 2 rows (1 inner and 1 outer) of large modified chaetae, 1 inner chaeta distally larger than others. Mucro proximal tooth larger than the distal one, mucronal spine almost reaching the proximal tooth apex.
Distribution. Known from Amazonas and Roraima States, Brazil ( Fig. 72 View FIGURE 72 ).
Etymology. Refers to the body spots present or absent ( Figs 67A–J View FIGURE 67 ) in the new species (from Greek: pseudo – false, and Latin: macula – spot).
Remarks. Entomobrya pseudomaculata sp. nov. is similar to E. idenilzae sp. nov. by the absence of the apical bulb on Ant IV, labial papilla E l.p. finger-shaped, prelabral chaetae smooth and bifurcate ( Figs 68B View FIGURE 68 , 62C View FIGURE 62 ), dorsal head with a V-shaped spot on its anterior region ( Figs 60A–D View FIGURE 60 , 61A–F View FIGURE 61 , 67A–E View FIGURE 67 ), unguiculus ai lamella clearly excavate and distal dens with modified mac ( Figs 65D View FIGURE 65 , 70D View FIGURE 70 ). However, Entomobrya pseudomaculata sp. nov. differs from these species by papilla E l.p. reaching the base of a.a. (surpassing in E. idenilzae sp. nov.) ( Fig. 63B View FIGURE 63 ), unguis b.t. equal to m.t. (b.t. larger than m.t. in E. idenilzae sp. nov.), unguiculus pe lamella serrated (smooth in E. idenilzae sp. nov.) ( Figs 65D View FIGURE 65 , 70D View FIGURE 70 ), manubrial plate with 7–8 chaetae (up 10 in E. idenilzae sp. nov.) ( Figs 66C View FIGURE 66 , 70G View FIGURE 70 ), and mucronal spine almost reaching the proximal tooth apex (surpassing in E. idenilzae sp. nov.). The dorsal chaetotaxy of E. pseudomaculata sp. nov. differs from the E. idenilzae sp. nov. in head with S4i and Pe6 mac (absent in E. idenilzae sp. nov.); Th II with a2p mac (absent in E. idenilzae sp. nov.) and p3p (present in E. idenilzae sp. nov.); Abd I with m2i mac (absent in E. idenilzae sp. nov.); Abd IV with 27 posterior mes (22 in E. idenilzae sp. nov.) and Abd V with a5a, a6–6a mac (all present in E. idenilzae sp. nov.) ( Figs 62D View FIGURE 62 , 64A–C View FIGURE 64 , 68C View FIGURE 68 , 69 A–C View FIGURE 69 ). Despite these differences, both species are very similar to each other in color pattern ( Figs 60 A–F View FIGURE 60 , 61A–L View FIGURE 61 , 67A–J View FIGURE 67 ), a feature which can lead to misidentification; therefore we suggest using the identification key and Tables 1–3 for species identification.
New record for Brazil
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