Veturius

Salazar-Niño, Karen & Serrão, José Eduardo, 2015, Description of the immature stages of nine species of Veturius (Coleoptera: Passalidae), Zootaxa 3925 (1), pp. 94-108 : 95-96

Veturius (Vetur ius) aspina Kuwert, 1898

( Figs. 1 a, 2a, 3a, 4a, 9a)

Third instar. Body: length 60.0–63.0 mm, width (prothorax) 12.0 mm; covered with uniform pile of fine, short setae ( Fig. 9 a); prosternal setae absent. Primary setal pattern: 4–5 HPA, 1 PD, 4 PSL, 1 MSD, 2–3 MSL, 1 MTD, 2–3 MTL, 1 TM, 1 TSM, 1 TL, 1 AV9 ( Table 2 ). Head: covered with uniform pile of short, golden setae; epicranial suture short; frontal sutures extended to the base of the antennae; width of head capsule 7.0–8.0 mm ( Fig. 1 a). Mandibles without micro-asperities on the ventral base. Maxillary stipes with 13 micro-conical projections ( Fig.

2a). Legs: pars stridens (mesocoxae) length 1097.80 µm, width 737.89 µm, distance into striate 20.12 µm, 41 striae; mesocoxae and metacoxae with 2 internal setae. Metathoracic legs covered with short setae and microasperities in medial and posterior areas; anterior margin with 5 well developed teeth, I is the largest tooth, II–V gradually decreasing in size ( Fig. 3 a).

* Post-antennal head setae (HPA), dorsal pronotal setae (PD), lateral pronotal shield setae (PSL), dorsal mesonotal setae (MSD), lateral mesonotal setae (MSL), dorsal metanotal setae (MTD), lateral metanotal setae (MTL), median tergal setae (TM), submedial tergal setae (TSM), lateral tergal setae (TL), ventral abdominal setae (AV), anal ring setae (AR).

Abdomen: raster with setae; anal ring with 20–22 setae; anal slit T-shaped ( Fig. 4 a).

Distribution. Species with geographical distribution from Honduras to Ecuador ( Boucher 2006). Material examined. COLOMBIA, TOLIMA, Municipio Ibagué, vereda Potrerillo, Sur el Totumo, 4°23'21''N 75°12'55.7''W, 1040 m, 5.vi.2008. G. Amat, P. Reyes-Castillo, & L. Jiménez (5 specimens). COLOMBIA, ANTIOQUIA, Gómez Plata, vereda Vega Botero, 940 m, 12.vii.2011. Reyes-Castillo, Jiménez-Ferbans, Salazar- Niño, & Amat-García (5 specimens).

Figures

FIGURE 1. Light micrographs of the head. (a) Veturius aspina, (b) V. assimilis, (c) V. simillimus, (d) V. sinuatocollis, (e) V. sinuatus, (f) V. crassus, (g) V. impressus, (h) V. oberthuri, (i) V. negroensis. Epicranial suture (ES) and frontal suture (FS) and post-antennal head setae (HPA). Scale 1 mm.

FIGURE 2. Scanning electronic micrographs of maxillae. (a) Veturius aspina, (b) V. assimilis, (c) V. simillimus, (d) V. sinuatocollis, (e) V. sinuatus, (f) V. crassus, (g) V. impressus, (h) high magnification of encircled area of Fig. 2 g of the microconical projections (arrow) on the stipes (i) V. oberthuri, (j) V. negroensis. Scale 200 µm.

FIGURE 3. Scanning electronic micrographs of metathoracic legs. (a) Veturius aspina, (b) V. assimilis, (c) V. simillimus, (d) V. sinuatocollis, (e) V. sinuatus, (f) V. c r a s s u s, (g) V. impressus, (h) V. oberthuri, (i) V. negroensis. I – VI indicate the number of teeth. Scale 100 µm.

FIGURE 4. Light micrograph of the abdominal segment X, showing the anal opening (AP), anal ring setae (AR) and raster (R). (a) Veturius aspina, (b) V. assimilis, (c) V. simillimus, (d) V. sinuatocollis, (e) V. sinuatus, (f) V. c r a s s u s, (g) V. impressus, (h) V. oberthuri, (i) V. negroensis. Scale 1 mm.

FIGURE 9. Light micrographs of the abdominal segment V (laterodorsal view), showing the setae of the body. (a) Uniform pile of fine short setae (Veturius aspina), with detail of the setae. (b) Tiny, stout setae (V. simillimus), with detail of the setae. (c) Tiny, stout setae (V. impressus), with detail of the setae. Scale 0.1 mm.

Tables

TABLE 2. Number of primary setae of larvae of Veturius species (Coleoptera: Passalidae). Numbers in parentheses refer to character states less frequent.

	SETAL GROUP *
SPECIES	HPA PD PSL	MSD	MSL	MTD	MTL	TM	TSM	TL	AV9	AR
V. aspina	4–5 1(2) 4	1	2–3(4)	1	2–3	1(2)	1	1	1	20–22
V. assimilis	3 0 3	0	2	0	2	1	0	1	1	18
V. simillimus	2 1 3	1	2	0	2	1	1	1	1	19
V. sinuatocollis	4–5 1 3	1	2–3	1	2	1	1	1	1	17–21
V. sinuatus	3 0 3	0	2	0	2	0	1	1	1	20
V. crassus	3(4) 0 3	0	2	0	2	0	1	1	1	18(16)
V. impressus	3 0 3	0	2	0	1–2	0	1	1	1	15–16
V. oberthuri	10 0 3	0	2	0	2	1	1	1	1	18
V. negroensis	2 0 3	0	2	0	1	0	1	1	1	14