Neoidiotypa flaviatra, Wendt, Lisiane Dilli & Ale-Rocha, Rosaly, 2014

Wendt, Lisiane Dilli & Ale-Rocha, Rosaly, 2014, Taxonomic revision of wasp-like richardiids, Neoidiotypa Osten-Sacken (Diptera, Tephritoidea, Richardiidae), Zootaxa 3857 (4), pp. 527-550 : 537-539

Neoidiotypa flaviatra sp. nov.

( Figs. 45–55 , 108 )

Comments and diagnosis. Similar to N. mexicana and N. sticta , N. flaviatra has the postpronotal lobe yellow, the scutum black with two yellow parallel stripes, and the abdomen with yellow basal bands on tergites 3–5. It differs from these species by having the spurious vein very reduced and free in cell r1, not connected to vein R2+3 or spurious vein absent; the ocelli-distance ratio 2.0, and the ocellar triangle extended posterior to the posterior ocelli. In addition, N. flaviatra has the postpronotal seta very reduced, slightly longer and more robust than the setulae around it; and the postsutural dorsocentral seta very reduced, distinctly smaller and thinner than the intra-alar seta.

Description. Holotype female: Measurements (in mm): body length 12.2; head 1.4; abdomen 8.2; wing 9.7. Head ( Figs. 47–49 ): Yellow, except two pale brown bands: one above lunule and one on dorsal third of frons ( Fig. 47 ); face with two lateral brown stripes ( Fig. 49 ); postcranium with dorsal brown band. Setae and setulae black. Head width-height ratio1.29. Frons-head ratio 0.37. Frons width-height 0.97. Ocelli-distance ratio 2.0 ( Fig. 108 ).

Ocellar triangle black, and extended posterior to posterior ocelli until vertex ( Fig. 48 ). Scape black on dorsal half, whitish on ventral surface, slightly shorter than pedicel. Pedicel black ( Fig. 48 ). First flagellomere brown; 3.0 times as long as wide ( Fig. 50 ). Arista yellow at base, and dark brown at apex, with very sparse, weak and short pubescence ( Fig. 50 ). Ocellar seta very short and thin, distinctly shorter than orbital seta. Postocellar seta present. Genal seta present and black. Postgenal seta absent. Palpus yellow; obovate with apex rounded and distinctly wider than base ( Fig. 49 ). Prementum yellow ( Fig. 49 ). Thorax ( Figs. 45, 46 ): Scutum 1.2 times longer than wide; black with two narrow parallel stripes and incomplete golden yellow band on transverse suture ( Fig. 45 ); densely covered with black setulae, except on stripes and bands bare. Postpronotal lobe, posterior half of notopleuron ( Fig. 45 ) and proepimeron yellow. Scutellum yellow medially and brown laterally. Katepisternum yellow on anterior half and brown on posterior half. Anepisternum yellow. Anepimeron and meron yellow on anterior half and brown on posterior half. Metapleuron pale brown. Katatergite brown on anterior third and yellow on posterior two-thirds. Subscutellum, mediotergite and anatergite brown. Setae black. Postpronotal seta very reduced, slightly more robust than setulae around it. Postsutural supra-alar seta slightly shorter and weaker than postalar and intra-alar setae. Postsutural dorsocentral seta very reduced, slightly more robust than the setulae around it. Presutural supra-alar and katepisternal setae absent. Proepimeral seta very weak. Halter whitish. Legs: Robust, fore femur slightly more swollen than mid and hind femora; fore tarsomeres distinctly more robust than mid and hind tarsomeres. Spine-like setae black. Legs yellow, except apical spot on anterior, ventral and posterior surfaces of fore femur, fore tibia, fore tarsomeres, apical ventral spot on mid femur, hind trochanter and basal half of posterior surface of hind femur brown. Pulvilli white. Fore femur with spine-like antero- and posteroventral setae on apical two-fifths; spine-like setae similar in number and thickness. Mid coxa with one long yellow medial seta. Mid femur with spine-like antero- and posteroventral setae on apical half; spine-like setae without modifications, evenly spaced; ventral surface normal, without hollow. Hind femur with spine-like antero- and posteroventral setae on apical half; dorsal seta absent. Wing ( Fig. 51 ): Shorter than body length ( Fig. 46 ); pale brown on anterior half and subhyaline on posterior half; one spurious vein, very reduced and free in cell r1. Abdomen ( Figs. 45, 46, 52 ): Dark brown, almost black, except syntergite 1+2 on median third pale brown, and tergites 3–5 on basal third, yellow; covered with black setulae on dark brown portions and with yellow setulae on yellow portions. Syntergite 1+2 2.1 times longer than tergite 3; basal three-fourths distinctly narrower than apical fourth ( Fig. 52 ); with six prepical and apical yellow setae arranged randomly on dorsal and laterodorsal surfaces. Tergites 3–5 similar in length. Tergite 3 gradually wider than apex of syntergite 1+2. Tergites 4–5 gradually narrower than tergite 3; with row of apical black setae on laterodorsal and dorsal surfaces. Sternites 2–6 yellowish covered with yellow setae and setulae, except some apical black setae on sternite 6. Female terminalia ( Figs. 53–55 ): Not dissected, observed only externally: Oviscape 1.53 mm long, dark brown ( Fig. 53 ). Taenia yellow, short, 0.5 times as long as oviscape; as sclerotized as oviscape ( Figs. 53, 55 ). Eversible membrane not examined. Tergite 8 yellow ( Figs. 53–55 ), not measured. Cerci 0.3 mm long, yellow; tip straight and very narrow, 0.05 mm in width, similar to apical seta length ( Fig. 54 ). Basal dorsal and ventral setae slightly long, dorsal seta longer than ventral seta ( Fig. 55 ).

Variation. The specimens from INBio are slightly different from holotype by having the brown marks on frons more evident; the ocellar triangle only slightly detached, its color is almost the same of the bands on frons; the gena with brown spot, below the eye extending to the postgena; brown mark on postcranium extending to the postgena; the yellow stripes and bands on scutum very faint, visible only in some angles; the scutellum entirely dark brown, and the yellow parts on mesopleuron very faints (these facts are probably due the conservation of the specimens, which are covered with some oily substance); the wing without spurious vein. Remarks. We considered these differences in color to be intraspecific variation and due the conservation of the specimens, because in all characters considered taxonomically important, especially chaetotaxy, these specimens are morphologically identical to the holotype.

Male. Unknown.

Type material. Holotype female, USNM: “ COSTA RICA: San Jose:\ Zurqui de Moravia, 1600m \ 10º03ˈN 84º01ˈW. V.1992 \ malaise trap, P. Hanson [collector]”. The holotype is in excellent condition with all parts preserved ( Figs. 45, 46 ).

Paratypes: Costa Rica: Cartago Province: A. C. Amistad, National Park Tapanti, 1150m, i.1994, LN194000_559800#2578, INBIOCRI001830748 (1♀, INBio); idem, Quebrada Segunda, vii.1994, idem, #3010, INBIOCRI001885174 (1♀, INBio).

Distribution. Costa Rica.

Etymology. The specific epithet is an adjective that refers to the black and yellow coloration of the body (from Latin, flavus = yellow; atra = black).

Figures

FIGURES 45 ‒ 55. Neoidiotypa flaviatra sp. nov., holotype female: 45 – 46. Habitus: 45. Dorsal view; 46. Lateral view; 47 – 50. Head: 47. Frontal view; 48. Dorsal view; 49. Lateral view; 50. Antenna; 51. Wing; 52 – 55. Abdomen: 52. General dorsal view (black arrow indicates darker region at base of syntergite 1 + 2); 53. Oviscape, taenia, tergite 8 and cerci, dorsal view; 54. Tergite 8 and cerci, dorsal view (small red mark indicates the tip of cerci width); 55. Taenia, sternite and tergite 8, and cerci, lateral view. Scales lines: figs. 45 ‒ 49; 51 ‒ 53: 1.0 mm; figs. 50, 54, 55: 0.5 mm.

FIGURES 106 ‒ 111. Ocellar triangle, shape: 106. Neoidiotypa alamagna sp. nov.; 107. Neoidiotypa appendiculata; 108. Neoidiotypa flaviatra sp. nov.; 109. Neoidiotypa mexicana sp. nov.; 110. Neoidiotypa nigra sp. nov.; 111. Neoidiotypa sticta sp. nov.