Rhagovelia carina, Padilla-Gil, Dora Nancy, 2015

Padilla-Gil, Dora Nancy, 2015, Ten new species of Rhagovelia in the angustipes complex (Hemiptera: Heteroptera: Veliidae) from Colombia, with a key to the Colombian species, Zootaxa 4059 (1), pp. 71-95 : 77-81

Rhagovelia carina sp. n.

Type material. HOLOTYPE, apt M, allotype apt F: COLOMBIA, Nariño, Altaquer, Reserva Natural Río Ñambi, 29 IV 2010, leg. D. N. Padilla ( ICN). PARATYPES, same data as holotype, 6 apt M, 6 apt F, 1 macr F ( ICN); 10 apt M, 10 apt F. The same locality, 20 VI 2011, C. Trujillo, leg, 3 apt M, 3 apt F, 1 macr M, 1 macr F; The same locality, 21 VI 2011 2 apt M, 2 apt F, 1 macr M, 2 apt M, 3 apt F, leg. D. N. Padilla. The same Department and municipality, El Diviso, Quebrada El Verde, 23 VI 2011, leg. 6 apt M, 7 apt F D. N. Padilla (PSO-CZ).

Color and pilosity. General color brown; abdominal tergite and sternite VII and VIII, genital segments, margins of metasternum, outer rim of connexiva, greater part of antennae, rostrum and legs, shining black. Anterior transverse band of pronotum, basal 1/6 of first antennal segment; coxae of fore and hind legs, yellow. Venter pale green, covered with short, semi-recumbent, golden setae; male with a central row, along midline ventral, of long golden setae; body covered with bright black denticles. Dorsum covered with short, recumbent golden setae intermixed with scattered, long, brown setae; bearing long dark setae on sides of thorax; abdominal sternites VII, VIII and genital segments covered with abundant, small golden setae. Antennal segment I bearing eight long, stiff, erect, black setae, two setae of this type also present near middle of segment II; legs with the usual pubescence and setae.

Apterous male. Length 5.13; maximum width 1.76. Length of antennal segments I −IV: 1.60, 0.90, 0.90, 0.80; pronotum shorter than the length of head (0.44/0.22), L/W: 0.22/1.40; length of exposed mesonotum 1.32; length of exposed metanotum at midline 0.08.

All trochanters unarmed. Posterior femur slightly increased, ventral surface on distal half with a row of 11 spines ( Fig. 58 ), beginning with a sharp, slender, forward-angling tooth and decreasing in size distally, proximal (largest) spine small, twice less than width of femur (0.22/0.4), hind femur beyond 1.24 the apex of abdomen. Hind tibia weakly curved, with a longitudinal row of 20 small, black pegs, 12 along basal half and 8 along posterior half; moderate-length, conical, black, apical spur.

Proportions of male legs as follows: fore femur/tibia/tarsal 1/tarsal 2: 1.92/2.12/0.2/0.24; middle femur/tibia/ tarsal 1/tarsal 2/tarsal 3: 3.40/2.08/0.12/1.20/1.12; hind femur/ tibia/ tarsal 1/tarsal 2/tarsal 3: 2.92/2.60/0.12/0.30/ 0.50.

Abdomen, connexiva angled upward at 30º. Venter convex, lacking longitudinal medial carina , sternite VII>VI>V (0.36, 0.24, 0.22, respectively), ventrite VII depressed on half, with 2 (1+1) depressions on either side of midline; ventrite VIII with keel along midline ventral; genital segments well developed, proctiger ( Fig. 4 ), parameres L/W: 0.20/0.10 ( Fig. 30 ).

Apterous female. Length 6.0, maximum width 2.0. Length of antennal segments I −IV: 1.40, 0.68, 0.80 0.64. Posterior femur L/W: 2.96/0.40, extending 0.96 beyond apex of the abdomen; hind tibia straight, with a longitudinal row of 23 small black pegs; moderate-length, conical, black, apical spur; connexival margins of segments V −VII thinned, posterolateral, connexiva angled upward at 40º, apices of connexiva straight, reaching basal part of the tergite VIII. Abdomen L/W: 2.48/1.88. Median length of abdominal tergites as follows: I: 0.24, II −IV: 0.34, V: 0.32, VI: 0.36, VII: 0.40; tergite VIII horizontal, median length 0.38; basal width of tergite VII: 0.64; proctiger horizontal ( Fig. 63 ). Venter, sternite VII>VI>V (0.70, 0.38, 0.34, respectively); gonocoxa with keel along midline ventral ( Fig. 63 ).

Macropterous Male. Length 7.46, maximum width 2.04. Similar in general coloration and structure to apterous male, with following exceptions: pronotum brown, with anterior band yellow and covered with short, semi-recumbent black setae; posterior half pale brown and with black punctuations, prominent and rounded humeral angles, rounded apex; L/W: 2.04/2.04; hemelytra exceeding (1.50) tip of abdomen, bearing 3 closed cells, 2 long cells originating in the basal portion of the wing followed by one smaller cell, displaying uniformly dull brown, darker veins; Sc and R+M+Cu veins covered with short, semi-recumbent brown setae; anterior half hemelytra showing outer rim of connexiva.

Macropterous Female. Length 7.73, maximum width 2.20. Similar in general coloration and structure to apterous female, with following exceptions: pronotum brown, with anterior band yellow and covered with short, semi-recumbent black setae intermixed with scattered golden setae; posterior half with deep, black punctuations, humeral angles prominent and straight, apex rounded; L/W: 2.16/2.20; hemelytra exceeding (1.14) tip of abdomen.

Type locality. Rhagovelia carina sp. n., was collected in the Reserva Natural Río Ñambi, located at 1º 18' N, 78º 05' W, 1400 m, Vereda El Barro, Corregimiento de Altaquer, Barbacoas Municipality, in the Nariño department; the average air temperature in this area is 20 ºC.

Etymology. The name “ carina ” is derived from “Karina,” a greek noun meaning “keel,” and refers to the gonocoxa with keel along midline ventral of the female in this species.

Comparative notes. The proctiger of Rhagovelia carina sp. n. is similar to that of R. cardia Padilla-Gil 2010 and to R. espriella Padilla-Gil 2010 , bearing ear-shaped prolongation on the lateral margin ( Figs. 5 , 21 ). Within this assemblage of species, R. carina may be distinguished by the entirely brown mesonotum, which lacks a shining, black spot; the male hind femur 7.3 times as long as wide ( Fig. 58 ); the characteristic male paramere with a semitriangular ventral margin, rounded apex, numerous setae near the ventral margin, and two rows of small, thick setae near the dorsal margin, ( Fig. 30 ). Rhagovelia cardia has a mesonotum bearing a heart-shaped, black spot; the male hind femur is 7.6 times as long as wide; the male paramere has a slightly curved ventral margin and an oblique dorsal margin, and bears numerous setae on the median and apical regions ( Fig. 31 ). In Rhagovelia espriella the male hind femur is 4.4 times as long as wide and reaches to the apex of the abdomen; the hind tibia of the male is straight and bears a longitudinal row of five small, black spines along the distal third; the male paramere lacks setae on the dorsal margin ( Fig. 51 ); female abdominal ventrite VII is large, and as long as the two preceding abdominal ventrites together. In R. carina the hind femur reaches slightly less than half its own length beyond the apex of the abdomen; the hind tibia of the male is slightly curved and bears a longitudinal row of 20 small, black pegs; and female ventrite VII is short, being nearly 1.25 as long as each of the preceding abdominal ventrites.

Figures

FIGURES 55 − 60. Male hind femur of Rhagovelia, 55 R. barbacoensis sp. n., 56 R. penta sp. n., 57 R. santanderi sp. n., 58 R. carina sp. n., 59 R. jagua sp. n., 60 R. mocoa sp. n. (Figs. 56 − 59, scale 0.25 mm; Figs. 55, 60, scale 0.1 mm).

FIGURES 1 − 5. Male proctiger of Rhagovelia, 1 R. barbacoensis sp. n., 2 R. penta sp. n., 3 R. santanderi sp. n., 4 R. carina sp. n., 5 R. cardia (Fig. 1 scale 0.025 mm; Figs. 2 − 4, 6, 8, 10 − 12, 14 − 15 scale 0.05 mm. Figs. 5, 7, 9, 13, 16 − 24, based on Padilla-Gil 2011, not to scale).

FIGURES 25 − 54. Male paramere of Rhagovelia, 25 R. barbacoensis sp. n., 26 R. s abrina, 27 R. penta sp. n., 28 R. santanderi sp. n., 29 R. bisignata. (Figs. 25, 27 − 28, 30, 32, 36, 38, 41 − 42, scale 0.01 mm; Fig. 34 scale 0.02 mm. Figs. 29, 37, 43, 49, setae omitted, not scale, based on Bacon, 1956. Figs. 31, 33, 45 − 46, 48, 53, scale 0.02 mm and Figs. 35, 39 − 40, 44, 47, 51 − 52, 54, scale 0.01 mm based on Padilla-Gil 2011. Fig. 26 not to scale, based on Drake, 1958, Fig. 50 setae omitted, scale 0.01 mm based on Manzano et al. 1995).

FIGURES 61 − 65. Rhagovelia, 61, 63 − 65, female, apex of abdomen, lateral view, 61 R. barbacoensis sp. n., 63 R. carina sp. n., 64 R. caunapi sp. n., 65 R. tricoma sp. n. 62 R. penta sp. n., fore wing (Figs. 61, 63, 65, scale 0.1 mm; Figs. 62, 64, not to scale).

FIGURES 20 − 24. Male proctiger of Rhagovelia, 20 R. gastrotricha, 21 R. espriella, 22 R. calceola, 23 R. cimarrona, 24 R. tenuipes.