Renda, Blackwelder, 1952

Márquez, Juan, 2010, Revision of the genus Renda Blackwelder, 1952 (Coleoptera: Staphylinidae: Xantholinini) 2686, Zootaxa 2686 (1), pp. 1-61 : 10-13

Key to determine the species of Renda

1. Pronotum with dense umbilicate punctures, except for narrow longitudinal impunctate area (“formicaria” species group; Figs. 3, 4 , 49, 50 ).................................................................................................................................. 2

1´. Pronotum with fine, moderately dense punctures, except for wide longitudinal impunctate area ( Figs. 5–10 , 51, 52 ) ........................................................................................................................................................................... 9

2(1). Head not posteriorly narrowed ( Figs. 11, 12 ) ......................................................................................................... 3

2´. Head posteriorly narrowed ( Fig. 15 )....................................................................................................................... 7

3(2). Head with temple convex ( Figs. 27–29 ); aedeagus ovally elongate, base of median lobe not conspicuously widened, with constricted lateral margins ( Figs. 66, 68 ) .............................................................................................. 4

3´. Temple of head with one or two temporal carinae ( Figs. 30–34 ); aedeagus oval, base of median lobe notably widened, lateral margins not constricted ( Figs. 65, 67, 69 ) .................................................................................... 5

4(3). Elytra shorter than pronotum (0.8–0.9x; Fig. 3 ); body with few long yellow setae; small aedeagus, internal sac with weakly sclerotized structures ( Fig. 66 ) ..................................................................................... R. brachyptera

4´. Elytra as long as pronotum; body with dense long yellow setae; elongate aedeagus, internal sac with sclerotized structures moderately visible ( Fig. 68 ) ............................................................................................... R. formicaria

5(3). Temple of head with inferior temporal carina (below eye; Fig. 32 ); ventral surface of head slightly convex; apical maxillary palpomere 1.50–1.75x as long as preapical palpomere; internal sac of aedeagus with sclerotized structures ( Figs. 67, 69 ) .......................................................................................................................................... 6

5´. Temple of head with superior and inferior temporal carinae (above and below eye, respectively; Fig. 34 ); ventral surface of head clearly convex; apical maxillary palpomere 1.76–2.00x as long as preapical palpomere; internal sac of aedeagus with weakly sclerotized structures ( Fig. 65 ) ............................................... R. bicarinata sp. nov.

6(5). Apical antennomere slightly shorter than antennomeres 9–10 combined (proportion 0.93x); ventral surface of head with dense umbilicate punctures separated by less than twice their width ( Fig. 24 ); short aedeagus, with narrow internal sac and long parameres (0.39x the length of median lobe; Fig. 67 ) ..................... R. flagellicornis

6´. Apical antennomere almost as long as antennomeres 9–10 combined (proportion 1.06x); ventral surface of head with moderately dense umbilicate punctures separated by 2–3x their width ( Fig. 23 ); aedeagus elongate, with wide internal sac and short parameres (0.29x the length of median lobe; Fig. 69 ) ............ R. grandipenis sp. nov.

7(2). Head with temple convex ( Fig. 27 ); ventral surface of head clearly convex; eyes long (0.33x as long as head and interocular distance 0.57x as wide as head measured at eye level); apical maxillary palpomere conically elongate, twice as long as preapical palpomere ( Fig. 39 ); pronotum with wide, smooth longitudinal central area ( Fig. 50 ); prosternum with fine carinate longitudinal line on anterior half (male unknown) ...... R. glabrinotum sp. nov.

7´. Temple of head with superior and/or inferior temporal carinae ( Figs. 30–32 ); ventral surface of head slightly convex; eyes smaller (0.22–0.28x as long as head and interocular distance 0.66–0.68x as wide as head); apical maxillary palpomere elongate, 1.86–1.87x as long as preapical palpomere ( Fig. 38 ); pronotum with narrow longitudinal impunctate central area ( Figs. 51, 52 ); prosternum without longitudinal carinate line .......................... 8

8(7). Temple of head with superior temporal carina and a flattened area ( Fig. 30 ); eyes 0.22x as long as head; ventral surface of head with moderately dense umbilicate punctures separated by 2–3x their width ( Fig. 23 ); apical area (from insertion of parameres to apex of median lobe, sensu Asiain et al. 2007) of median lobe of aedeagus 0.3x as long as total length of median lobe, internal sac with weakly sclerotized structures ( Fig. 70 ) ........................... ................................................................................................................................................. R. profundepunctata

8´. Temple of head with inferior temporal carina and a moderately deep concave area ( Fig. 32 ); eyes 0.28x as long as head; ventral surface of head with dense umbilicate punctures separated by twice or less their width ( Fig. 24 ); apical area of median lobe of aedeagus 0.14x as long as total length of median lobe, internal sac with moderately visible sclerotized structures ( Fig. 71 ) .......................................................................................... R. sharpi sp. nov.

9(1). Body with metallic green or blue color, or at least somewhat metallic; apical antennomere at least 1.1x the length of antennomeres 9–10 combined; elytra with fascia of long and pale setae at anterior quarter, fascia as wide as or slightly wider than scutellum ( Fig. 5 ); labrum with two pairs of teeth, the central pair longest ( Fig. 55 ) (“fasciata” species group) ................................................................................................................................................ 10

9´. Body black, not metallic; apical antennomere subequal to or shorter than antennomeres 9–10 combined (1.07x or less); elytra without fascia of long and pale setae; labrum bilobed ( Fig. 54 )................................................... 14

10(9). Head oval, notably narrowed posteriorly ( Fig. 14 ); temple convex ( Figs. 27, 28 )............................................... 11

10´. Head ovally elongate, not posteriorly narrowed (similar to Figs. 17–18 ), or if posteriorly narrowed, with head elongate ( Fig. 16 ); temple of head with one or two carinae ( Figs. 30–34 ) ........................................................... 12

11(10). Temple of head flattened ( Fig. 28 ); dorsal surface of head clearly convex; ventral surface of head with slightly dense umbilicate punctures separated by 3x their width ( Fig. 22 ); pronotum shorter than elytra (0.87x as long), without depressed areas at each side of posterior third; aedeagus small and elongate ( Fig. 76 ) ............................. ......................................................................................................................................... R. simplicephala sp. nov.

11´. Temple of head slightly to moderately concave area ( Fig. 29 ); dorsal surface of head slightly convex; ventral surface of head with moderately dense umbilicate punctures separated by 2–3x their width ( Fig. 23 ); pronotum as long as elytra (0.92x), with depressed area at each side of the posterior third ( Fig. 51 ); aedeagus elongate, with base of median lobe widened ( Fig. 73 )...................................................................................... R. fasciata sp. nov.

12(10). Head elongate and posteriorly narrowed ( Fig. 16 ); tempora of head with superior temporal carina and a slightly to moderately deep concave area ( Fig. 31 ); mandibles with external channel; ventral surface of head with sparse umbilicate punctures separated by 3x their width ( Fig. 22 ); aedeagus with long parameres (0.51x as long as median lobe), internal sac with sclerotized structures ( Fig. 75 ) ............................................................ R. leprieuri

12´. Head ovally elongate, not posteriorly narrowed (similar to Figs.17, 18 ); tempora of head with superior and inferior temporal carinae and a slightly deep concave area ( Fig. 34 ); mandibles with external channel poorly developed; ventral surface of head with dense umbilicate punctures separated by 2–3x their width ( Fig. 23 ); aedeagus with short parameres (0.48x or less as long as median lobe), internal sac with weakly sclerotized structures ( Figs. 72, 74 ) ................................................................................................................................................................... 13

13(12). Body black with metallic reflection; ventral surface of head slightly convex; pronotum with depressed area clearly visible at each side of posterior third ( Fig. 51 ); aedeagus small, elongate, with parameres and apical area of median lobe long (0.48x and 0.45x as long as median lobe, respectively), internal sac of aedeagus with weakly sclerotized structures ( Fig. 74 ) .................................................................................................... R. fulgida sp. nov.

13´. Body metallic green or blue; ventral surface of head clearly convex; pronotum with depressed area poorly developed at each side of posterior third; aedeagus large, ovally elongate, with short parameres and apical area of median lobe (0.29x and 0.26x as long as median lobe, respectively), internal sac of aedeagus with sclerotized structures moderately visible ( Fig. 72 ) ....................................................................................... R. cyanea sp. nov.

14(9). Apical maxillary palpomere conical, 1.00–1.29x as long as preapical palpomere ( Fig. 40 ) (“minor” species group) ................................................................................................................................................................... 15

14´. Apical maxillary palpomere elongate or conically elongate, 1.42 to more than twice as long as preapical palpomere ( Figs. 38, 39 ) ................................................................................................................................................... 22

15 (14). Pregenital and genital segments of abdomen, and posterior border of fifth visible abdominal segment yellow 16

15´. Genital segment and posterior border of pregenital segment of abdomen reddish brown ................................... 17

16 (15). Head ovally elongate (similar to Fig. 17 ); ventral surface of head clearly convex; apical antennomere nearly as long as antennomeres 9–10 combined (proportion 0.94x); pronotum 1.41x as long as wide and shorter than elytra (0.83x); aedeagus elongate, with symmetrical parameres and internal sac with weakly sclerotized structures ( Fig. 77 ) ........................................................................................................................................................ R. brasiliana

16´. Head oval quadrate (similar to Fig. 19 ); ventral surface of head slightly convex; apical antennomere shorter than antennomeres 9–10 combined (proportion 0.85x); pronotum 1.38x as long as wide and nearly as long as elytra (0.97x); aedeagus ovally elongate, with base of median lobe widened, right paramere longer than left paramere and internal sac with sclerotized structures ( Fig. 78 ) ................................................................................ R. debilis

17(15). Head ovally elongate (length/width proportion 1.27–1.37x; similar to Fig. 17 ) .................................................. 18

17´. Head oval quadrate (length/width proportion 1.14–1.22x; similar to Fig. 19 ) ..................................................... 20

18(17). Head slightly convex dorsally; first antennomere 1.59–1.67x as long as antennomeres 2–3 combined; ventral surface of head with moderately dense umbilicate punctures separated by 2–3x their width ( Fig. 23 ); pronotum 1.38–1.46x as long as wide; parameres asymmetrical, apical area of median lobe 0.22–0.32x as long as total length of median lobe ( Figs. 83, 84 ) ..................................................................................................................... 19

18´. Head clearly convex dorsally; first antennomere 1.73–1.95x as long as antennomeres 2–3 combined; ventral surfaces of head with very dense umbilicate punctures separated by less than twice their width ( Fig. 24 ); pronotum 1.69–1.76x as long as wide; parameres symmetrical, apical area of median lobe 0.14x as long as total length of median lobe ( Fig. 80 ) ............................................................................................................. R. longiceps sp. nov.

19(18). Second antennomere longer than third antennomere (proportion 1.19x); pronotum 1.38x as long as wide; aedeagus ovally elongate, with base widened, left paramere longer than right paramere, 0.22x as long as median lobe, internal sac with sclerotized structures ( Fig. 84 ) .................................................................. R. raulmunizi sp. nov.

19´. Second antennomere shorter than third antennomere (proportion 0.80–0.93x); pronotum 1.46x as long as wide; aedeagus elongate, with right paramere longer than left paramere, 0.32x as long as median lobe, internal sac with weakly sclerotized structures ( Fig. 83 ) ......................................................................................... R. nitida sp. nov.

20 (17). Head with temple convex ( Fig. 27 ); apical antennomere nearly as long as antennomeres 9–10 combined (proportion 0.91–0.97x); aedeagus small (length 1.33 mm), elongate, parameres 0.34–0.40x as long as median lobe, internal sac with weakly sclerotized structures ( Figs. 79, 82 ) .............................................................................. 21

20´. Head with temple flattened ( Fig. 28 ); apical antennomere shorter than antennomeres 9–10 combined (proportion 0.84x); aedeagus large (3.32–3.36 mm), ovally elongate, with base widened, parameres 0.29x as long as median lobe, internal sac with sclerotized structures ( Fig. 81 ) ................................................ R. mesoamericana sp. nov.

21(20). Total body length 11.9–14.5 mm; head slightly expanded toward posterior corners, dorsally faintly convex, ventrally clearly convex; pronotum 1.38x as long as wide; right paramere longer than left paramere, 0.4x as long as median lobe ( Fig. 79 ) ................................................................................................................. R. lescheni sp. nov.

21´. Total body length 11.3–12.8 mm; head not expanded toward posterior corners, clearly convex dorsally, ventrally slightly convex; pronotum 1.41x as long as wide; aedeagus with symmetrical parameres, 0.29x as long as median lobe ( Fig. 82 ) .................................................................................................................................. R. minor

22(14). Apical labial palpomere securiform ( Fig. 46 ) (“palpalis” species group) ............................................................ 23

22´. Apical labial palpomere moderately expanded toward apex, or conical ( Figs. 44, 45 ) (“fimetaria” species group) .............................................................................................................................................................................. 25

23(22). Total body length 17.1 mm; dorsal surface of head slightly convex; head with temple convex ( Fig. 27 ); pronotum with wide and conspicuous, but not umbilicate punctures; male unknown ...................... R. palpalis sp. nov.

23´. Total body length less than 16.1 mm; dorsal surface of head clearly convex; temple of head with one or two temporal carinae and a flattened or concave area ( Figs. 30–34 ); pronotum with fine punctures; male known ........ 24

24(23). Head oval quadrate (length/width proportion 1.10–1.17x; Fig. 19 ); tempora of head with inferior temporal carina and a deep, concave area (similar to Fig. 32 ); ventral surface of head clearly convex; eyes long (0.39x as long as head) and wide (interocular distance 0.57x the cephalic width, measured at eye level); pronotum with depressed area poorly developed at each side of posterior third; aedeagus ovally elongate, with apical area of median lobe 0.24x as long as total length of median lobe ( Fig. 92 ) ........................................................ R. ophthalmica sp. nov.

24´. Head oval (length/width proportion 1.22–1.28x; Fig.13 ); tempora of head with superior and inferior temporal carinae and a flattened area ( Fig. 33 ); ventral surface of head slightly convex; eyes shorter (0.29x as long as head) and less wide (interocular distance 0.66x as wide as head width measured at eye level); pronotum without depressed areas; aedeagus elongate, with apex of median lobe 0.15x as long as total length of median lobe ( Fig. 91 ) ............................................................................................................................................... R. julietae sp. nov.

25(22). Apical maxillary palpomere conically elongate ( Fig. 39 ); pronotum 1.60–1.67x as long as wide, without depressed area at each side of posterior third ...................................................................................................... 26

25´. Apical maxillary palpomere elongate ( Fig. 38 ); pronotum 1.41–1.56x as long as wide, with depressed area at each side of posterior third moderately visible ..................................................................................................... 28

26 (25). Head with temple convex ( Fig. 27 ); pronotum longer than elytra (proportion 1.24x); second antennomere as long as third antennomere; male unknown ............. ............................................................ R. brevipennis sp. nov.

26´. Temple of head with superior and inferior carinae ( Figs. 33–34 ); second antennomere shorter than third antennomere (proportion 0.89–0.91x); pronotum as long as elytra (proportion 1.00–1.07x) .......................................... 27

27(26). Head oval, narrowed posteriorly (similar to Fig. 14 ), 1.41x as long as wide; ventral surface of head clearly convex; eyes 0.27x as long as head, interocular distance 0.61x cephalic width at eye level; apical antennomere 1.1x as long as antennomeres 9–10 combined; apical maxillary palpomere 1.75x as long as preapical palpomere ....... ....................................................................................................................................... R. fimetariamimus sp. nov. 27´. Head ovally elongate, not narrowed posteriorly ( Fig.18 ), 1.32–1.44x as long as wide; ventral surface of head slightly convex; eyes 0.33x as long as head, interocular distance 0.58x cephalic width (at eye level; Figs. 9 , 18 ); apical antennomere nearly as long as antennomeres 9–10 combined (proportion 0.91x); apical maxillary palpomere 1.82x as long as preapical palpomere ............................................................................................. R. fimetaria

28(25). Head oval, narrowed posteriorly (similar to Figs. 14, 15 ); head with temple convex ( Fig. 27 ); ventral surface of head slightly convex; pronotum 0.87x as long as elytra; aedeagus ovally elongate, with base notably widened ( Fig. 85 ) ..................................................................................................................................... R. brendelli sp. nov.

28´. Head oval or oval quadrate, not narrowed posteriorly (similar to Figs. 11–13, 17–19 ); temple of head with superior and inferior carinae ( Figs. 33–34 ); ventral surface of head clearly convex; pronotum as long as elytra (proportion 0.99–1.00x); aedeagus ovally elongate, base not strongly widened ( Figs. 86, 87, 90 ) ........................... 29

29(28). Head slightly convex dorsally; antennomere 2 shorter than antennomere 3 (proportion 0.87x); apical antennomere 1.16x as long as wide; ventral surface of head with moderately dense umbilicate punctures separated by 2–3x their width ( Fig. 23 ); aedeagus with left paramere longer than right paramere, 0.23x total length of median lobe, apical area of median lobe 0.11x as long as total length of median lobe, internal sac with sclerotized structures ( Fig. 87 ) .............................................................................................................................................. R. clavicornis

29´. Head clearly convex dorsally; antennomere 2 as long as antennomere 3; apical antennomere as long as wide; ventral surface of head with sparse umbilicate punctures separated by more than 3x their width ( Fig. 22 ) or dense separated by less than twice their width ( Fig. 24 ); aedeagus with symmetrical parameres ( Figs. 86, 90 ), 0.36– 0.42x as long as median lobe, apical area of median lobe 0.21–0.23x as long as total length of median lobe, internal sac with weakly sclerotized structures ........................................................................................................... 30

30(29). Head oval (1.23–1.30x longer than wide; similar to Fig. 13 ); eyes 0.30x as long as head; ventral surfaces of head with dense umbilicate punctures separated by less than twice their width ( Fig. 24 ); pronotum with fine punctures; prosternum with longitudinal, fine carina on anterior half ..................................... R. cariniventris sp. nov.

30´. Head oval quadrate (1.18–1.22x longer than wide; similar to Fig. 19 ); eyes 0.33x as long as head (measured from middle); ventral surface of head with sparse umbilicate punctures separated by more than 3x their width ( Fig. 22 ); pronotum with wide and conspicuous but not umbilicate punctures; prosternum without longitudinal carina ...................................................................................................................................... R. pronotalis sp. nov.

Figures

FIGURES 1–6. Habitus, dorsal view: 1, Philonthus testaceipennis; 2, Plochionocerus splendens; 3, Renda brachyptera; 4, R. flagellicornis; 5, R. leprieuri; 6, R. debilis. Scale bar 3 mm.

FIGURES 47–52. Pronotum: 47, Philonthus testaceipennis; 48, Plochionocerus splendens; 49, Renda formicaria; 50, R. glabrinotum; 51, R. fulgida; 52, R. minor.

FIGURES 7–10. Habitus, dorsal view: 7, Renda minor; 8, R. clavicornis; 9, R. fimetaria; 10, R. julietae. Scale bar 3 mm.

FIGURES 11–19. Dorsal view of head: 11, Renda bicarinata; 12, R. flagellicornis; 13, R. julietae; 14, R. fasciata; 15, R. sharpi; 16, R. leprieuri; 17, R. nitida; 19, R. fimetaria; 19, R. ophthalmica.

FIGURES 25–34. Lateral view of head: 25, Philonthus testaceipennis; 26, Agrodes conicicollis; 27, Renda debilis; 28, R. brachyptera; 29, R. fasciata; 30, R. profundepunctata; 31, R. leprieuri; 32, R. flagellicornis; 33, R. julietae; 34, R. bicarinata.

FIGURES 62–77. Ventral view of aedeagus: 62, Philonthus testaceipennis; 63, Agrodes conicicollis; 64; Plochionocerus splendens; 65, Renda bicarinata; 66, R. brachyptera; 67, R. flagellicornis; 68, R. formicaria; 69, R. grandipenis; 70, R. profundepunctata; 71, R. sharpi; 72, R. cyanea; 73, R. fasciata; 74, R. fulgida; 75, R. leprieuri; 76, R. simplicephala; 77, R. brasiliana. Scale bar 1 mm.

FIGURES 20–24.Ventral view of head: 20, Philonthus testaceipennis; 21, Plochionocerus splendens; 22, Renda brendelli; 23, R. clavicornis; 24, R. brachyptera.

FIGURES 35–46. Maxillary palpi: 35, Philonthus testaceipennis; 36, Agrodes conicicollis; 37, Plochionocerus splendens. Apical and subapical maxillary palpomeres: 38, R. bicarinata; 39, R. fimetaria; 40, R. minor. Labial palpi: 41, P. testaceipennis; 42, A. conicicollis. Apical and subapical labial palpomeres: 43, P. splendens; 44, R. formicaria; 45, R. brasiliana; 46, R. palpalis.

FIGURES 53–61. Labrum: 53, Philonthus testaceipennis; 54, Renda spp. 55, R. fasciata. Lateral view of pronotal hypomeron: 56, Plochionocerus splendens; 57, Agrodes spp.; 58, Renda spp. 59, Elytra of Plochionocerus spp. Tibiae: 60, Agrodes spp.; 61, Plochionocerus spp. and Renda spp.

FIGURES 78–92. Ventral view of aedeagus: 78, R. debilis; 79, R. lescheni; 80, R. longiceps; 81, R. mesoamericana; 82, R. minor; 83, R. nitida; 84, R. raulmunizi; 85, R. brendelli; 86, R. cariniventris; 87, R. clavicornis; 88, R. fimetaria; 89, R. fimetariamimus; 90, R. pronotalis; 91, R. julietae; 92, R. ophthalmica. Scale bar 1 mm.