Pattonella (Pattonella) juruti, Camargo & Carvalho-Filho & Esposito, 2018

Camargo, Sofia Lins Leal Xavier De, Carvalho-Filho, Fernando Da Silva & Esposito, Maria Cristina, 2018, The genus Peckia Robineau-Desvoidy (Diptera: Sarcophagidae) in the Brazilian Amazon: a new species, new records, descriptions of female terminalia and key to species, Zootaxa 4483 (1), pp. 1-35: 17-18

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Pattonella (Pattonella) juruti

sp. nov.

Peckia (Pattonella) juruti  sp. nov.

( Figs 21–25 View Figure , 31–34 View Figure )

Diagnosis. Mid femur of male with a ctenidium on posteroventral surface. Cercus of a forward inverted L-shape ( Fig. 21 View Figure ). Pregonite with a prominent preapical rounded projection dorsally ( Fig. 25 View Figure ). Ventral surface of juxta with two inner lobes ( Figs 23–24 View Figure ). Juxtal accessory lobe elongate, occupying more than two-thirds of juxtal length ( Figs 24 View Figure , 33 View Figure ). Capitis with two pairs of rounded projections laterally ( Figs 31–32 View Figure ).

Description. Male. Body length 13–15 mm (n = 4).

Head. Fronto-orbital and parafacial plates and postocular strip with golden microtrichosity. Ocellar setae shorter than postocular setae. Outer vertical seta thicker than postocular setae. Orbital setae black. Three frontal setae situated below posterior limit of lunule. Antenna dark brown; first flagellomere about 2.5 times as long as pedicel; arista plumose in basal two-thirds. Gena and postgena with light golden microtrichosity; genal setae black anteriorly, yellow posteriorly. First row of occipital setae black, others yellow. Palpus black.

Thorax. Thorax with three strong black longitudinal vittae; microtrichosity gray with a faint yellowish hue. Chaetotaxy: acrostichals 0+1, dorsocentrals 0+2, intra-alars 2+2 (anterior one shorter), supra-alars 2+3, scutellum with 1 pair of basal setae, 1 pair of lateral setae, 1 pair of fine (shorter than apical) subapical setae, 1 pair of apical setae and no discal setae. Prosternum and posterior surface of hind coxa with yellow setae, and with white and black setae ventrally on anterior half. Three katepisternal setae. Postalar wall with white setae anteriorly. Wing: hyaline, costal spine absent, vein R1 bare on dorsal surface, third costal section bare ventrally. Lower calypter without dorsal setae, with a central dark spot and a fringe of long, hair-like setae along outer margin, extending to posterior margin. Legs: mid femur with a ctenidium on posteroventral surface; anterodorsal surface of mid tibia with 1 median and 1 apical setae; ventral surface of hind femur with a row of setae; hind tibia anterodorsally with 1 seta in basal third, 1 in middle third and 1 preapical seta.

Abdomen. Black with pattern of silvery-gray microtrichosity. T4 with one lateral seta on each side. T5 with gray microtrichosity. Posterolateral region of T5 with setae directed towards ventral body region. Terminalia: ST5 orange with anterior margin V-shaped and a rounded protuberance on outer lateral margin; arms of ST5 conical, with short and stout setae along inner margins ( Fig. 22 View Figure ). Syntergosternite 7+8 orange, with golden microtrichosity. Epandrium bright orange. Cercus dark brown and of same thickness from base to apex; of a forward inverted Lshape, with rounded apex in lateral view, with long setae restricted to cercal base and with some short setae on cercal prong ( Fig. 21 View Figure ). Surstylus orange, clubbed, with long setae on apex ( Fig. 21 View Figure ). Pregonite elongate, strongly curved anteriorly, with a prominent preapical rounded projection and pointed apex. Postgonite elongate, with hooked apex ( Fig. 25 View Figure ). Basi- and distiphallus connected by a hinge. Phallic tube elongate, tubular and curved anteriorly. Juxta well demarcated from phallic tube, without a juxtal lateral plate; juxtal base with a prominent membranous accessory lobe curved dorsally ( Figs 24 View Figure , 33 View Figure ); juxta sclerotized, composed of two large rounded lobes ( Figs 23–24 View Figure ); ventral surface of lobes with smaller inner lobes ( Figs 23–24 View Figure ) covered with numerous minute, lightcolored spines (hardly visible at low magnifications) ( Figs 33–34 View Figure ); dorsal margin of inner lobe reaching beyond dorsal margin of lateral lobe and visible laterally ( Figs 23–24 View Figure , 33–34 View Figure ); juxtal accessory lobe elongate, occupying more than two-thirds of juxtal length. Vesica composed of two slender and coiled filaments with flattened tip ( Figs 31–32 View Figure ). Acrophallus with a pair of separated lateral styli, each with a longitudinal cleft; styli not visible when phallus observed in lateral view. Each lateral stylus elongate and twisted distally. Capitis higher than wide, sclerotized, with two pairs of rounded projections laterally and one pair of projections distally, with hooked tips ( Figs 31–32 View Figure ).

Female. Unknown.

Distribution. Brazil (Pará).

Type material. HOLOTYPE ♂: Juruti, PA [= Pará state], Brasil / Pulmão bovino [= on beef lung bait] / 5– 12.V.2008 / F.S. Carvalho-Filho & / M.C. Esposito ( MPEGAbout MPEG)  . PARATYPES: 3 ♂♂, same data as holotype (2 MPEGAbout MPEG, 1 MNRJAbout MNRJ)  .

Etymology. The specific epithet refers to the type locality, the municipality of Juruti, and is as a noun in apposition. The word “ juruti  ” is the vernacular name of doves of the genus Leptotila Swainson  (Aves: Columbiformes  : Columbidae  ), once a common species in the type locality.

Remarks. The cercus, surstylus and postgonite of Peckia (P.) juruti  sp. nov. are similar to those of P. (P.) smarti  , but the new species differs in having pregonite without a median triangular projection ( Fig. 25 View Figure ). In P. (P.) juruti  sp. nov. the juxtal accessory lobe is conspicuously developed, taking up more than two-thirds of the total juxtal length ( Figs 24 View Figure , 33 View Figure ); the juxta has two inner lobes, visible in lateral view ( Fig. 23 View Figure ), covered with numerous tiny spines ( Figs 24 View Figure , 33 View Figure ); the capitis is composed of two lateral projections ( Figs 31–32 View Figure ). In P. (P.) smarti  the pregonite has a median triangular projection the tip of which is laterally directed proximad to the preapical rounded projection ( Fig. 28 View Figure ), which is not as developed as in the new species ( Fig. 25 View Figure ); the juxta has just one inner lobe ( Fig. 26 View Figure ), not visible in lateral view, which is covered with a few tiny spines; the juxtal accessory lobe is short, occupying about one-third of the total juxtal length ( Fig. 27 View Figure ); finally, the capitis has one lateral projection ( Figs 29– 30 View Figure ).

According to Buenaventura & Pape (2015) the capitis is absent in species of Peckia sensu  lato, and this was one of the synapomorphies used by these authors to define this genus. However, in our opinion and based on the definition of Buenaventura & Pape (2015), the structure present in the acrophallus of P. (P.) smarti  and P. (P.) juruti  sp. nov. ( Figs 29–32 View Figure ) is the capitis.


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