Microvelia joceliae Magalhães & Moreira,

Magalhães, Oséias Martins, Machado, Gustavo Lisboa Vieira, Carneiro, Marco Antonio Alves & Moreira, Felipe Ferraz Figueiredo, 2021, A new species of Microvelia Westwood, 1834 (Hemiptera: Heteroptera: Veliidae from southeastern Brazil, Zootaxa 4958 (1), pp. 160-166: 161-163

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Microvelia joceliae Magalhães & Moreira

sp. nov.

Microvelia joceliae Magalhães & Moreira  , sp. nov.

( Figs. 1–13View FIGURES 1–8View FIGURES 9–12View FIGURE 13, 17View FIGURE 17, Table 1)

Type material examined. Holotype apterous ♀: Brazil, Minas Gerais, Ouro Preto, Parque Natural Municipal das Andorinhas, Folhinha Station , 20°21’01”S, 43°29’24”W ( Figs. 13View FIGURE 13, 17View FIGURE 17), 31.VIII.2018, G.L. V. Machado leg. ( CEIOC 81541)GoogleMaps  . Paratypes: 5 apterous ♂, 4 apterous ♀: same data as holotype ( CEIOC 81542)GoogleMaps  .

Etymology. This species is named in honor of Dr. Jocélia Grazia in recognition of her valuable contributions to the knowledge about Heteroptera  from the Neotropical Region.

Description. Apterous female ( Figs. 1–4View FIGURES 1–8, Table 1). Head black. Base of antennomere I yellow or light-brown; apex of I and rest of antenna dark-brown. Eye dark-red ( Fig. 1View FIGURES 1–8). Clypeus, buccula and jugum brown; labium brown, except article IV black ( Fig. 3View FIGURES 1–8). Pronotum black with light-brown stripe adjacent to head and along midline ( Fig. 1View FIGURES 1–8). Thoracic pleura brown, with darker areas surrounding punctures ( Fig. 4View FIGURES 1–8). Proepisternum brown. Pro- and mesoacetabula brown laterally, dark-brown mesally; metacetabulum brown.Pro-, meso-, and metasterna dark-brown. Coxae and trochanters yellow ( Fig. 2View FIGURES 1–8). Fore femur dorsally with proximal ~1/3 light-brown, then brown; ventrally yellow. Middle and hind femora mostly brown dorsally; base and venter yellow. Tibiae brown. Tarsi dark-brown. Abdominal mediotergite I brown centrally, light-brown and pubescent laterally, with black margins; II–III brown centrally, black laterally and on margins; visible portions of IV–VI black, covered with silvery pruinosity; visible portions of VII–VIII brown. Abdominal laterotergites brown, with black areas along sutures between segments ( Fig. 1View FIGURES 1–8). Abdominal sterna black, with sides brown ( Fig. 2View FIGURES 1–8). Terminalia yellow to light-brown.

Head covered by short setae.Antenna covered by short setae, with some longer setae on the dorsum of antennomeres II–IV. Antennomere I curved laterally, wider than others; II wider than III, thicker at apex; III cylindrical, thinner than others; IV fusiform, wider than III ( Fig. 1View FIGURES 1–8). Labium reaching anterior portion of mesosternum ( Fig. 3View FIGURES 1–8).

Pronotum extended posteriorly, covering almost entire thorax dorsally, leaving only metathoracic triangles exposed, subrectangular, much wider than long, with an irregularly arranged transverse row of punctures between anterior and posterior lobes; anterior lobe with transverse row of punctures adjacent to anterior margin; posterior lobe with several larger punctures ( Fig. 1View FIGURES 1–8). Sides of thorax with greyish pruinosity and some longer setae, without glabrous area ( Fig. 4View FIGURES 1–8). Venter of thorax without elaborated ornamentation; proepisternum with black denticles ( Fig. 3View FIGURES 1–8); denticles absent from other areas. Legs without spines, covered by short brown setae more densely on trochanters and femora; tibiae with rows of long, thicker, brown setae ventrally.

Dorsum and venter of abdomen covered by short, thin, golden setae. Abdominal mediotergites I–VII subrectangular; VIII with posterior margin rounded. Abdominal laterotergites strongly reflected over mediotergites, almost touching over segments V–VII ( Fig. 1View FIGURES 1–8).

Apterous male ( Figs. 5–12View FIGURES 1–8View FIGURES 9–12, Table 1). Similar to apterous female in color and structure. Abdominal mediotergite IV black; V–VI black, covered with silvery pubsecence; VII black, with silvery pubescence anteriorly; VIII shiny black. Abdominal laterotergites elevated, but not reflected over mediotergites ( Fig. 5View FIGURES 1–8). Venter of abdominal segments V–VII depressed. Abdominal segment VIII deeply inserted into abdomen ( Fig. 5View FIGURES 1–8); dorsally exposed portion transverse and short; ventrally, posterior margin with wide medial concavity, notched on both sides. Pygophore with apex rounded ( Fig. 9View FIGURES 9–12). Proctiger with apex rounded and barely visible dorsally, without projections, lateral margins convergent ( Fig. 12View FIGURES 9–12). Parameres asymmetrical ( Fig. 9View FIGURES 9–12); right thin, elongated, larger than left ( Fig. 10View FIGURES 9–12); left short ( Fig. 11View FIGURES 9–12); each paramere with base and apex rounded.

Diagnosis. Microvelia joceliae Magalhães & Moreira  , sp. nov. is characterized by the pronotum of the apterous form almost completely covering the thorax dorsally ( Figs. 1, 5View FIGURES 1–8), proepisternum with black denticles ( Figs. 3, 7View FIGURES 1–8), male abdominal segments V–VII ventrally depressed, and female abdominal laterotergites reflected over the mediotergites and almost touching over segments V–VII ( Fig. 1View FIGURES 1–8). Only two other species of the genus occurring in the region share the condition of the pronotum with the new species: Microvelia ioana Drake & Hottes, 1952  and M. nelsoni Moreira, Barbosa & Ribeiro, 2012  . Microvelia nelsoni  is readily distinguished from the other two by the body black with an orange mark on the pronotum and several areas of silvery pubescence ( Figs. 14–15View FIGURES 14–16), and the female abdominal laterotergites not reflected over the mediotergites ( Fig. 15View FIGURES 14–16). Both M. ioana  and M. joceliae Magalhães & Moreira  , sp. nov. share the general color brownish and reflected female abdominal laterotergites ( Figs. 1View FIGURES 1–8, 16View FIGURES 14–16); however, the latter can be distinguished by the proepisternum with black denticles ( Figs. 3, 7View FIGURES 1–8), which are absent in the former; the female abdominal laterotergites almost touching over mediotergites V–VII ( Fig. 1View FIGURES 1–8), but widely separated in the former ( Fig. 16View FIGURES 14–16); and the asymmetrical parameres ( Figs. 9–11View FIGURES 9–12), whereas they are symmetrical in the former ( Moreira & Barbosa 2011: Figs. 21–22).

Comments. Folhinha Station, the type locality of M. joceliae Magalhães & Moreira  , sp. nov., is a section of Velhas River at 1,108m a.s.l. This part of the river is bordered by preserved riparian Atlantic Forest on both banks and is rich in allochthonous organic matter ( Fig. 17View FIGURE 17). Because most of PNMA’s vegetation has been subject to anthropogenic disturbance, the forest patches are predominantly formed by small trees with narrow trunks (IEFMG 2009).


Royal British Columbia Museum - Herbarium