Mapinguari uai, Calhau, Julia, Lamas, Carlos José Einicker & Nihei, Silvio Shigueo, 2016

Calhau, Julia, Lamas, Carlos José Einicker & Nihei, Silvio Shigueo, 2016, A new Mapinguari Papavero & Wilcox (Diptera, Mydidae, Mydinae) from Minas Gerais State, Brazil, Zootaxa 4179 (2), pp. 253-262 : 257-260

Mapinguari uai sp. nov.

( Figs 2 A–E, 3H–J, 4)

Diagnosis. Scutellum black setulose. Anepimeron long black setulose. Legs reddish brown. Fore femur with short dorsal black setulae; mid femur all black setulose. Fore tibia black setulose with dense copper setulae on dorsal surface and few on posterior surface. Hind leg copper setulose with black setulae on tarsus. Tergites and sternites largely coppery red; T1 long black setulose; S2 black setulose; remaining tergites and sternites copper setulose. Bulla about 6x longer than wide. Female terminalia: female sternite 8 with nearly parallel lateral margins, apically with well-defined lateral and medial lobes; lateral lobe with footprint shaped sclerotized area; posterior margin of T9+10 regular, without medial protuberance; lateral margin of T9+10 convex, narrowing abruptly posteriorly; capsule of medial spermatheca slightly curve.

Female holotype. Total length about 32 mm (26 mm excluding antennae and dissected part of abdomen).

Head ( Figs 2 C–E). 4.48 mm high in lateral view, 6.48 mm wide in anterior view. Black. Facial gibbosity higher than wide. Setulae mostly black; mystax dense, mostly black with few golden lateral setulae. Pruinescence white, denser on face outside gibbosity, and on compound eye margin. Mouthparts. Labellum orange to dark brown, labrum and labium dark brown, maxilla orange. Antenna. Black. Scape and pedicel black setulose. Scape 0.73 mm long; pedicel 0.17 mm long; proximal postpedicel 3.84 mm long; distal postpedicel 3.24 mm long, 0.59 mm wide, not distinctly inflated, broader at about three-quarters of its length, with rounded sensory area on inner surface of antenna apex.

Thorax ( Figs 2 A,C). Black. Scutum mostly shiny with black setulae on anterior dorsocentral area, lateral margins, postalar callus and close to scutellum; pruinescence white, scarce, present laterally and on anterior dorsocentral area. Scutellum black setulose with bare ventral margin, scarcely pruinose. Mediotergite graypruinose. Pleuron white pruinose, more distinctly on anepimeron. Anepisternum black setulose on dorsal and posterior margins. Anepimeron long black setulose. Katepimeron bare. Prosternum and proepisternum long blacksetulose. Mesosternum golden setulose. Metakatepisternum ventrally golden setulose. Metepimeron black setulose.

Legs ( Fig. 2 C). Reddish brown; setulae mostly black. Fore femur with short dorsal black setulae, and longer, denser, recumbent, black anterior setulae. Mid femur black setulose. Distal half of fore and mid tibiae, and all tarsi densely setulose; fore tibia black setulose with dense copper setulae on dorsal surface; mid tibia black setulose with few posterior copper setulae. Hind leg mostly copper setulose with black setulae on tarsus. Hind femur 8.47 mm long, 1.98 mm wide, with 15 reddish brown spiniform macrosetae distributed onto anteroventral and anterodorsal rows. Hind tibia 6.88 mm long, 0.72 mm wide; ventral keel developed, apical spur acute, 0.36 mm long. Hind tarsomere 1 0.68 mm long, 0.42 mm wide; hind tarsomere 2 0.55 mm long; hind tarsomere 3 0.49 mm long; hind tarsomere 4 0.46 mm long; hind tarsomere 5 1.25 mm long. Pulvillus yellow, shorter than fore, mid and hind tarsomeres 5. Claw reddish brown, tip black.

Wing ( Fig. 2 A). 23.01 mm long, 7.12 mm high. Alula 2.18 mm long, 1.72 mm high. Membrane brown with bluish reflections; r5, m1+2 and center of anal lobe paler; microtrichia absent. Veins brown. Costa with short black setulae on anterior wing margin and very short brown microtrichia on posterior wing margin. Sc ending in C, reaching about half length of cell r4; cell r4 closed (R5 terminating in R1); right wing of holotype with extranumerary crossvein connecting apex of R4 and R5; cell r5 open (M1+2 terminating in C); CuA1+M3 present. Upper calypter dark brown, broader medially; marginal setulae dark brown. Halter dark orange.

Abdomen ( Figs 2 A, C). Tergites and sternites largely coppery red. T1 long black setulose; S2 black setulose; remaining tergites and sternites copper setulose. T1 with anterior and posterior margins black; cone-shaped elevation of the anterior portion of T1 bare, white pruinose with shiny apex. Tergites posterior to T1 and all sternites apruinose. Bulla black, about 6x longer than wide. Female terminalia ( Figs 3 H–J). Sternite 8 with nearly parallel lateral margins, apically with well-defined lateral and medial lobes; lateral lobe with footprint shaped sclerotized area. Posterior margin of T9+10 regular, without medial protuberance; lateral margin convex, narrowing abruptly posteriorly. Capsule of medial spermatheca slightly curve.

Distribution ( Fig. 4 ). Brazil (Minas Gerais).

Bionomics. The only two known specimens of M. uai sp. nov. were collected during the wet season in forested environment, by regular Malaise traps ( Townes 1962), which indicates that this species has some flight activity close to the soil level. As both exemplars are female, this flight activity might be related to oviposition.

Type material. HOLOTYPE ♀. BRAZIL. Minas Gerais: Marliéria, Parque Estadual do Rio Doce , Gambá , 19°46′7.56″S, 42°35′3.81″W, 04–11.xi.2007, Malaise, J.C.R. Fontenelle col., AAM-001385 ( MZUSP) . Paratype ♀. Same data as holotype, 11–18.xi.2007 ( MZUSP).

Remarks. This species differs from M. politus by the darker coloration on legs and postpedicel (missing in the holotype of M. politus , but present in the non-type specimens studied), and by the female terminalia concerning the shape of posterior and lateral margins of T9+10, and curvature of the medial spermatheca capsule.

Etymology. The specific epithet is taken from the informal interjection, commonly spoken in Minas Gerais State, which can express amazement, surprise or confirmation.

Figures

FIGURE 2. Mapinguari uai sp. nov., female holotype (MZUSP). A, dorsal habitus; B, labels; C, lateral habitus; D, head, frontal view; E, antenna.

FIGURE 4. Distribution map for the species of Mapinguari, showing part of South and Central America. Brazilian states are outlined in pale grey.

FIGURE 3. A – C, female of M. politus (INPA). A, sternite 8, ventral view; B, genitalia, dorsal view; C, genitalia, ventral view. D – G, male of M. politus (INPA). D, epandrium and proctiger, dorsal view; E, gonocoxite-hypandrial complex and associate structures, dorsal view; F, gonocoxite-hypandrial complex and associate structures, lateral view; G, gonocoxite-hypandrial complex and associate structures, ventral view. H – J, female of M. uai sp. nov. (MZUSP). H, sternite 8, ventral view; I, female genitalia, dorsal view; J, female genitalia, ventral view. (Legends: mspth, medial spermatheca; T, tergite).