Oiovelia shepardi Rodrigues, 2019
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publication ID |
https://doi.org/ 10.11606/1807-0205/2019.59.35 |
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publication LSID |
lsid:zoobank.org:pub:1415D3F3-9009-4B40-826B-03D3D6E6C901 |
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persistent identifier |
https://treatment.plazi.org/id/C52187EB-5D52-662B-4987-FCB19975F963 |
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treatment provided by |
Carolina |
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scientific name |
Oiovelia shepardi Rodrigues |
| status |
sp. nov. |
Oiovelia shepardi Rodrigues n. sp.
( Figs. 1 View Figure 1 , 3 View Figure 3 A-D, 3I, 5)
Description: Macropterous female: HOLOTYPE, length 4.50; maximum width (across humeral angles) 1.50. Paratypes (n = 5), length 4.30-4.70 (mean = 4.42); maximum width 1.40-1.50 (mean = 1.42).
Color: Head and pronotum orange. Fore wings dark brown with whitish to yellowish maculae between cells. Antennae, greater portion of legs, pleura, ventral thorax, and abdomen blackish. Distal margins of coxae and trochanters yellowish brown ( Fig. 1 View Figure 1 ).
Head: Length 0.75; maximum width (across eyes) 0.73. Declined anteriorly, covered by fine golden pubescence and long dark setae concentrated dorsally in front of eyes; dorsally with longitudinal midline impressed and a pair of oblique indentations near posterior margin. Ocular setae present. Antenniferous tubercle developed, shining. Antenna covered by golden pubescence and elongate dark setae; antennomere I more robust than II-IV, curved laterally, with lateral margins slightly diverging posteriorly; II longer and slightly more robust than III and IV; IV fusiform, slightly longer than III; length of antennomeres I – 0.70, II – 0.60, III – 0.33, IV – 0.40.
Thorax: Pronotum length at midline 0.82; covered by fine golden pubescence; anterior lobe with elongate dark setae concentrated laterally; anterior lobe with row of rounded punctations adjacent to anterior margin, without marks or evident pruinosity; posterior lobe covered by rounded punctations, slightly larger towards apex; humeral angles slightly elevated; posterior margin rounded. Fore wing reaching tip of abdomen, leaving only posterior portion of genital segment exposed; four closed cells; veins at basal half with elongate dark setae. Propleuron with a row of rounded punctations on epimeron. Mesopleuron with a row of rounded punctations on episternum and another of small rounded punctations on epimeron. Metapleuron with a set of silvery se- tae on epimeron. Prosternum with rounded punctations anteriorly. Meso- and metasternum each centrally with two pairs of small tubercles on intersegmental region.
Legs: Densely covered by short, appressed,golden setae and elongate dark setae, without spines. Fore tibia with small grasping comb at apex ( Fig. 3I View Figure 3 ). Leg measurements as follows: foreleg, femur 0.95, tibia 0.96, tarsomeres 1-3, 0.05, 0.08, 0.35; middle leg, femur 1.25, tibia 1.36, tarsomeres 1-3, 0.10, 0.20, 0.44; hind leg, femur 1.45, tibia 1.80, tarsomeres 1-3, 0.08, 0.25, 0.46.
Abdomen: Covered by silvery pubescence and elongate dark setae, the latter concentrated on laterotergites and lateral margins. Laterotergites slightly elevated, posterior angle of last segment rounded, not developed into spines. Abdominal sterna unmodified. Sternum II compressed laterally. First gonocoxa plate-like. Proctiger small, globose.
Macropterous male: Paratypes (n = 5), length 3.80-4.04 (mean = 3.87); maximum width (across humeral angles) 1.30-1.40 (mean = 1.32). Similar to macropterous female in coloration and structure, except: grasping comb larg- er, 2.2-2.4 long. Laterotergites not elevated. Posterior margin of sternum VII concave ( Fig. 1C View Figure 1 ). Posterior margin of tergum VIII with elongate dark setae ( Figs. 3 View Figure 3 A-C); anterior margin excavated ventrally ( Fig. 3B View Figure 3 ); posterior margin slightly concave dorsally ( Fig. 3A View Figure 3 ). Proctiger without spines on dorsal surface. Paramere elongate, slightly narrowed in the middle, with rounded apex ( Fig. 3D View Figure 3 ).
Distribution and habitat: This species is distributed in La Guajira and Antioquia departments of Colombia, northern South America ( Fig. 5 View Figure 5 ), in localities that vary between 100 to 929 meters of elevation, and probably occurs only west of the Andes.The specimens were collect- ed in streams without accumulate foam at banks, which is the typical habitat of other Oiovelia species.
Comparative notes: The new species can be distinguished from congeners by the orange color of the head and pronotum, the absence of a V-shaped pruinose area on the posterior lobe of pronotum, the fore wing with basal maculae poorly delimited at the distal region and additional whitish to yellowish maculae between cells ( Fig. 1A View Figure 1 ), and the female with a small grasping comb at the apex of the fore tibia ( Fig. 3I View Figure 3 ). Oiovelia shepardi n. sp. is morphologically similar to Oiovelia cunucunumana Drake & Maldonado-Capriles, 1952 , and resembles it by also having the color of the pronotum orange, absence of a V-shaped pruinosity on the posterior lobe of the pronotum, and the paramere slightly narrowed in the middle with the apex rounded. However, in the new species the pronotum has no blackish areas on the lateral margin of the anterior lobe, the basal macula of the fore wing is poorly delimited at the distal region, the areas between cells of the fore wing have evident pruinosity and in some specimens whitish to yellowish maculae, and the female has a small grasping comb at the apex of the anterior tib- ia; whereas in O. cunucunumana the head is blackish with a posterior orange band, the pronotum usually has dark areas in the lateral margins of the anterior lobe, the basal macula of the fore wing is well delimited at the distal region, the areas between cells of the fore wing have at most a slight pruinosity, without additional maculae, and the female does not have a grasping comb on the apex of the fore tibia.
The genital segments of O. johnpolhemi Floriano & Rodrigues, 2016 are also very similar to those of the new species, and in addition, the head and pronotum are orange, and there is whitish pruinosity between the cells of the fore wing. However, O. johnpolhemi has dark areas on the lateral margins of the anterior lobe of pronotum, and the head and pronotum have a striking orange color, whereas in O. shepardi n. sp. the dark areas are absent from the pronotum, and the head and pronotum have a softer orange color.
Discussion: Grasping comb sensu Hale (1926) and Andersen (1982) is a structure of the fore tibia of most species of Veliidae , which consists of a row of strong and small modified spines present at the apex of the segment, usually occupying half of the tibia (it may be shorter or longer in some species). According to Andersen (1982), this structure is a putative synapomorphy of the family, although it has been lost secondarily in some genera. This is usually present only in the male, but in some species it may also be present in the female. When a species has this structure in both sexes, it is always smaller in the female, sometimes occupying only a small portion of the apical region of the tibia. In Oiovelia , this structure was previously known to be present only in males, occupying the apical ⅔ of the fore tibia ( Rodrigues et al., 2014a).The presence of a grasping comb in the female of O. shepardi n. sp. makes this the only species of Oiovelia with such structure present in both sexes. For this reason, a female is designated as holotype.
Etymology: This species is named in honor of William D. Shepard, retired professor from the California State University, Sacramento, U.S.A., who collected the first specimen examined by the author. Currently, “Bill” Shepard is a collaborator at the collection of the Essig Museum of Entomology,Berkeley.The name is treated as a Latin noun in the genitive case.
Type material examined: All specimens macropterous, glued to a paper point. HOLOTYPE female, COLOMBIA, Antioquia, Río Nare, tributario del Embalse Punchiná , 06°24’N, 75°03’W, 07.XI.2009, 1806, I. Cristina Gil & E. Peláez col. ( MPUJ-ENT 0063895 ). PARATYPES: COLOMBIA, Antioquia, Sonsón, Río La Miel en el corregimiento de San Miguel, 05°45’16.5”N, 74°42’52.3”W, 177 m a.s.l., 24.XI.2010, 2975, D.P. Gómez & E. Peláez col. (1 male, MPUJ-ENT 0063894 ; 1 male, MZUSP) GoogleMaps ; COLOMBIA, Antioquia, Sonsón, Río Samaná Sur , 05°44’15.8060”N, 74°46’40.0623”W, 157 m a.s.l., 21.X.2011, 2617, I. Cristina Gil & E. Peláez col. (1 female, MPUJ-ENT 0063893 ) GoogleMaps ; COLOMBIA, Antioquia, Sonsón, Río La Miel en el corregimiento de San Miguel , 05°45’16.5”N, 74°42’52.3”W, 177 m a.s.l., 24.IV.2014, 3261, D.P. Gómez & E. Peláez col. (1 female, MZUSP) GoogleMaps ; COLOMBIA, Antioquia, Mpio. San Carlos , 27.III.[2016], 929 m, Quebrada Canaveral, N 06°12.19’, W74°56.74’, WDS-A-2039, William D. Shepard leg., L-1946 (1 male, EMEC) ; COLOMBIA, La Guajira, Fonseca, Río Ranchería , debajo de los 100 m, 10°56’07.9130”N, 72°50’04.0623”W, 01. V.2011, 2481, F. Álvarez col. (1 male, MPUJ-ENT 0063892 ; 1 male, UCO; 1 female, MZUSP; 2 females, UCO) GoogleMaps .
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