Rhagovelia caunapi, 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 : 81-83

Rhagovelia caunapi sp. n.

Type material. HOLOTYPE, apt M, allotype apt F: COLOMBIA, Tumaco, La Espriella , Río Caunapí , 20 m, 21 VI 2010, leg. D. N. Padilla ( ICN). PARATYPES, same data as holotype, 1 apt M, 1 apt F ( ICN), 1 apt M (PSO- CZ),

Color and pilosity. General color brown; central part of abdominal sternite VII, genital segments, greater part of antennae, rostrum and legs, shining black. Anterior transverse band of pronotum, basal quarter of first antennal segment; acetabulae and coxae of fore and hind legs, all trochanters, yellow. Venter grey-green; dorsum and venter of thorax and abdomen covered with minute black denticles, jugum of head and proepisternum without minute black denticles. Dorsum covered with short, recumbent golden setae intermixed with scattered, long black setae. Antennal segment I bearing six long, stiff, erect black setae, two setae of this type also present near middle of segment II, and covered by setae smaller; legs with the usual pubescence and setae.

Apterous male. Length 3.56; maximum width (across mesocoxae) 1.96. Length of antennal segments I −IV: 0.96, 0.66, 0.48, 0.68; pronotum shorter than the length of head (0.22/0.38), L/W: 0.22/1.56. Mesonotum slightly convex, depressed slightly centrally; anterior-lateral margins parallel and caudo-lateral margins slightly convergent, inconspicuously sutured on the posterior edge, L/W: 1.08/1.20 (without mesopleura); length of exposed metanotum at midline ~ 0.10.

Unarmed trochanters. Fore femur slightly curved, posterior half of fore tibia curved and flattened in the apex.

Middle femur long, straight, and unarmed, most increased near base (L/W: 2.68/0.30) and tapering gradually to apex, and about 1.48 times longer than the hind femur. Posterior femur slightly increased near to the base (L/W: 1.80/0.16) and tapering gradually to apex, extending slight beyond apex of abdomen (0.62); hind tibia long, straight, and unarmed.

Proportions of male legs as follows: fore femur/tibia/tarsal 1/tarsal 2: 1.24/1.10/0.06/0.32; middle femur/tibia/ tarsal 1/tarsal 2/tarsal 3: 2.68/1.88/0.12/0.76/0.68; hind femur/ tibia/ tarsal 1/tarsal 2/tarsal 3: 1.80/2.72/0.04/0.10/ 0.16.

Abdomen, L/W: 1.22/1.38, tapering gradually to apex; tergites I, IV, and V equal in length (0.16), II and III (0.14), VI: 0.2, VII: 0.32, VIII: 0.42. Connexiva horizontal, margins of segments V −VII thinned. Venter lacking longitudinal medial carina ; sternite VII>VI>V (0.26, 0.18, 0.16, respectively), ventrite VII depressed with 2 (1+1) shallow depressions on either side of midline, genital segments well developed, proctiger ( Fig. 6 ), parameres, L/W: 0.14/0.04, wide near the base 0.06 ( Fig. 32 ).

Apterous female. Length 3.4; maximum width (across mesocoxae) 1.92. Similar to apterous male in general structure and coloration, with the following exceptions: length of antennal segments I −IV, 0.76, 0.44, 0.40, 0.50. Posterior femur extending slightly beyond apex of abdomen (0.12). Abdomen L/W: 1.32/1.52, tapering gradually to apex, margins of connexival segments I −IV thicken and, margins of connexival segments V −VII thinned. Median length of abdominal tergites as follows: I: 0.14, II and V equal (0.16), III and IV equal (0.18), VI: 0.22, VII: 0.28, VIII: 0.30; connexiva angled upward at 45º, tergites IV −VI slightly concave; basal width of tergite VII: 0.52; proctiger horizontal. Venter slightly convex; sternite VII>VI>V (0.44, 0.24, 0.20, respectively), gonocoxa well developed, distinctly visible ( Fig. 64 ).

Macropterous form. Unknown

Type locality. Rhagovelia caunapi sp. n., was collected in Río Caunapí , located at 1º 28' 14.4'' N, 78º 38' 14'' W, 20 m, San Andres de Tumaco municipality, Pacific plain, in the Nariño department; the average air temperature at this site is 26ºC.

Etymology. The name “ caunapi ” refers to the Caunapi River drainage in which the specimens were collected.

Comparative notes. Individuals of Rhagovelia caunapi sp. n. may be distinguished by having the posterior femur in both sexes unarmed; the ratio of the length of antennal segments I and II equal to 1.45; the male proctiger with straight lateral margins on the basal section ( Fig. 6 ); and the shape of the male paramere, with the anterior margin forming an obtuse angle ( Fig. 32 ). Rhagovelia longipes Gould, 1931 also lacks spines on the posterior femur and tibia, but in this species the first two antennal segments (I −II) are one-half longer than second two (III −IV); the male proctiger has rounded lateral margins on the basal section ( Fig. 7 ); and the male paramere has the anterior margin more sharply-pointed ( Fig. 33 ).

Figures

FIGURES 6 − 10. Male proctiger of Rhagovelia, 6 R. caunapi sp. n., 7 R. longipes, 8 R. tricoma sp. n., 9. R. rosensis, 10 R. tumaquensis sp. n.

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).