Xynocoris crinitus Garbelotto & Campos,

Garbelotto, Thereza De A., Campos, Luiz A. & Grazia, Jocelia, 2014, Xynocoris, new genus of Ochlerini from Central and South America (Hemiptera: Pentatomidae: Discocephalinae), Zootaxa 3869 (3), pp. 281-305: 287-293

publication ID

http://dx.doi.org/10.11646/zootaxa.3869.3.4

publication LSID

lsid:zoobank.org:pub:D4638897-09A5-4699-B2B9-CE079F3D9797

persistent identifier

http://treatment.plazi.org/id/D5668C50-FFC3-3A69-B3C7-7DEF751EC59B

treatment provided by

Plazi

scientific name

Xynocoris crinitus Garbelotto & Campos
status

sp. nov.

Xynocoris crinitus Garbelotto & Campos  sp. nov.

( figs. 3 DView FIGURE 3; 5 I, LView FIGURE 5)

Etymology. The epithet refers to the long setae at the lateral margins of parameres; latin: crinitus  , with long hair.

Type locality. Brazil, Jacare (- 15.2667; -57.7000).

Male holotype. BRAZIL, Mato Grosso: Jacare (P. N. Xingu), XI. 1961, Alvarenga, Werner, [- 15.2667; - 57.7000] ( DCMP) Deposited in: DCMPGoogleMaps  .

Description. Body elongate; overall color dark brown, with lighter colored areas on pronotal and scutellar wrinkles, and between punctures on corium; punctures black. Legs slightly lighter colored than the body surface. Antennae four-segmented, segment II conspicuously wider in males.

Head black, punctures forming transverse wrinkles on mandibular plates and clypeus. Apices of mandibular plates exceeding clypeus by a distance equivalent to half of the ocellar diameter, not touching each other; lateral margins of mandibular plates slightly reflected. Eyes on short peduncle. Anteocular processes projected, attaining 1 / 2 of the eye width. Antennal tubercles partially visible from above. Antennae brown, four-segment; first segment bearing dorsal longitudinal yellowish spot; proportion of antennal segments: I<II>III<IV, second the longest. Ventrally with 1 + 1 carinae posterior to the eyes, concolours with head surface. Bucculae with anterior tooth. Rostrum yellowish, second segment reaching mesocoxae; apex not surpassing posterior margin of urostermite III; proportion of rostral segments: I<II>III≈IV.

Pronotum black anterior to cicatrices, brown with yellowish spots and punctures forming wrinkles posterior to cicatrices; cicatrices flat. Anterior angles of pronotum with projections lateral to the eyes, exceeding laterally the eye by almost the eye diameter. Anterolateral margins concave and crenulated; posterolateral margins subrectilinear. Scutellum brown with punctures forming wrinkles on disc; anterior margin with median spot and 1 + 1 light spots near the fovea; yellowish spots denser on postfrenal lobe. Corium reaching anterior margin of connexival segment VI; yellowish spots evenly distributed; spot on apex of radial vein equivalent to the ocellar diameter. Hemelytral membrane surpassing the apex of abdomen, bearing nine veins. Pleurae and sterna black. Evaporatorium black; peritreme surpassing half the width of evaporatorium. Legs yellowish contrasting with body color, except tibiae brown; femora with brown circular spots.

Segments of connexivum bearing yellowish middle spot. Abdomen dark brown, punctures shallow, absent on disc. Yellowish maculae before spiracles absent.

Male. Second antennal segment twice wider than third segment. Measurements (n= 1): head length, 1.47; width, 2.45; pronotum length, 2.50; width, 6.03; scutellum length, 3.97; width, 3.19; length of antennal segments: I, 0.62; II, 2.14; III, 1.24; IV, 1.74; length of rostrum segments: I, 0.90; II, 1.55; III, 1.25; IV, 1.15; total length, 10.73; abdominal width, 6.37

Genitalia. Pygophore. Dorsal rim concave; distance between projections of dorsal rim equals the width of each projection ( fig. 5 IView FIGURE 5). Projections of inferior layer of ventral rim subtriangular, apices spatulate placed laterally to segment X ( fig. 5 IView FIGURE 5). Superior layer of ventral rim slightly tumid near the median margin of the projections of inferior layer ( fig. 5 IView FIGURE 5). Ventral rim uniformly excavated, forming a shallow and large aperture, exposing the lateral portions of segment X ( fig. 5 LView FIGURE 5). Carinae continued from the conical projection of inferior layer conspicuous ( fig. 5 LView FIGURE 5). Segment X slightly wider at base, with inconspicuous boundary between sclerotized and membranous areas; lateral margins concave; apex bearing short setae ( fig. 5 IView FIGURE 5). Parameres with apical angle not acutely curved; head not reaching the margin of ventral opening of pygophore; median lobe of lateral margin of parameres, in dorsal view, placed laterally to segment X and bearing long setae reaching the apex of posterolateral angles of pygophore ( fig. 5View FIGURE 5 L—par).

Female. Unknown.

Comments. Xynocoris crinitus  sp. nov. ( fig. 3 DView FIGURE 3) is the most basal species of Xynocoris  gen. nov. ( fig. 1View FIGURE 1; Garbelotto et al. 2013, ‘sp. 08’). Diagnostic characters of X. crinitus  sp. nov. are the concolorous carinae posterior to each eye, the anterolateral margins of pronotum concave and crenulated, and the long setae of parameres reaching the posterolateral angles of pygophore ( fig. 5 IView FIGURE 5).

DCMP

Brazil, Parana, Curitiba, Universidade Federal do Parana

DCMP

Universidade Federal do Parana