Blepharoneura septemdigitata Norrbom & Condon, 2010

Norrbom, Allen L. & Condon, Marty, 2010, Revision of the femoralis group of Blepharoneura Loew (Diptera: Tephritidae) 2374, Zootaxa 2374 (1), pp. 1-139 : 105-107

Blepharoneura septemdigitata Norrbom & Condon , new species

Figs. 62 , 93 , 119–120 , 163

Diagnosis. This species, B. ruptafascia , furcifer , an undescribed species (see B. sp. nr. furcifer ) and some specimens of B. quadristriata and macwilliamsae differ from other Blepharoneura species in having two marginal hyaline marks in cell r2+3, the more distal of which forms a concave band ending on the posteroapical margin of cell r4+5. B. septemdigitata differs from the undescribed species and B. ruptafascia in having the proximal marginal hyaline mark in cell r2+3 extended into cell r4+5 (it connects to the proximal hyaline mark in cell m to form a complete band only in some specimens of this species and B. furcifer ); cell dm with two hyaline marks in basal 2/3; and cell cu1 with medial hyaline mark Y-shaped. It differs from B. macwilliamsae and quadristriata in having either three or no anterior brown spots or vittae on the scutum (there are 2 or 4 in the other species) and from the latter species in having yellow spots within the brown abdominal markings. It differs from B. furcifer in the markings of cell c (see key), but is most reliably distinguished from it by aculeus shape. The aculeus differs from all other Blepharoneura species in having 7 digitiform lobes separated by deep, narrow gaps. That of B. lutea is similar but differs in having a medial apical concavity rather than a projecting medial lobe. In B. furcifer the submedial lobe is step-like and not deeply separated from the medial lobe.

Description. Head: Dark brown area on ocellar tubercle extended more than half distance to postocellar seta or reaching it. Often (4 of 7 specimens) with very small ovoid dark brown area surrounding medial vertical seta. Medial occipital sclerite with pair of faint brown submedial vittae on ventral half. Occipital suture narrowly orange brown to red brown.

Thorax ( Fig. 93 ): Scutum nonmicrotrichose except lateral third anterior to transverse suture (this area sometimes sparsely microtrichose), and lateral margin and posterior to dorsocentral setae on postsutural part; scutum usually entirely orange (5 of 7 specimens), in 2 males posterior margin with pair of red brown marks or bimodal transverse mark, fainter medially, latter male also with narrow unpaired presutural medial red brown vitta, extended to transverse suture, and pair of presutural comma-shaped red brown marks aligned with medial corner of postpronotal lobe but not reaching it. Scutellum, subscutellum, mediotergite, pleuron and basalare entirely yellow. Dorsocentral seta aligned with or posterior to postalar seta or (1 ♀) slightly anterior to postalar seta.

Legs: Entirely yellow, occasionally mid femur with extreme margin of anteroventral apical ridge dark red brown.

Wing ( Fig. 62 ): Length 7.00– 7.55 mm, width 3.10–3.66 mm, ratio 1.97–2.09. Crossvein r-m at 0.48–0.52 distance from bm-cu to dm-cu. Cell c usually with 1 goggles-shaped hyaline area, more rounded than rectangular basally and distally and narrower medially, in Bolivian specimen [USNMENT00056539] with narrow medial brown area separating 2 rounded hyaline spots; hyaline area(s) usually narrowly separated from costa by elongate marginal pale brown area. Posteromedial and sometimes anteromedial parts of brown area(s) as dark as area of cell r1 posterior to pterostigma. Pterostigma with hyaline subapical spot [#3], small to large, often reaching R1. Cells r1 and r2+3 basally (proximal to apex of R1) usually without hyaline spots, 1 specimen with minute spot in r1 posterior to apex of vein Sc. Radial cells medially with tapering basal marginal hyaline mark in cell r1 [#5] and usually with aligned spots in r2+3 [#8] and r4+5 [#14], usually forming acute triangular to nipple-shaped mark; spot in r2+3 rarely absent (1 wing of 1 specimen), spot in r4+5 sometimes absent (2 specimens) or narrowly isolated or slightly more proximal than r1 mark, extended at most halfway across cell; cell r2+3 sometimes (3 specimens) with slightly more distal, small hyaline spot [#9], sometimes touching R2+3 or R4+5 (in 2 specimens touching or almost touching r1 mark anteriorly); cell r4+5 with medial hyaline spot [#15] near anterior end of dm-cu small to minute (reduced to yellowish dot in 2 specimens). Distally cell r1 with 1 subapical marginal hyaline spot [#6]. Cell r2+3 with 2 elongate marginal hyaline marks, proximal mark [#10] aligned with hyaline mark in cell cell r4+5 forming band extending at least to middle of cell r4+5, usually (except in Bolivian ♀) connected to proximal mark in cell m to form complete band, distal mark [#11] connected with hyaline marks in r4+5 [including #18] forming concave band extending to margin of r4+5. Cell m usually with 2 marginal hyaline marks, proximal mark usually (Peruvian specimens) band [fused #26A, #26, #27] connected to posterior spot or band in cell r4+5, rarely (Bolivian ♀) divided into marginal spot [#27] and elongate anteromedial spot [fused #26, #26A]) extended to vein M; distal mark [#29] usually extended to vein M but not into cell r4+5, sometimes narrowly separated from proximal band or spot anteriorly. Cell br usually without subbasal spot [#12], with minute spot in 1 Peruvian male. Cell bm without subbasal spot [#19], sometimes (3 specimens) with minute subapical spot [#20]. Posteromedial part of wing with more proximal elongate hyaline band and more distal Y-shaped hyaline mark in cell cu1 and aligned spot in cell dm; proximal band [aligned and connected #13, #21, #22, #31?] extended from subapically in cell br into cell cu1, usually broader in cell dm, in 1 specimen interrupted anteriorly in cell dm, occasionally (1 wing of 3 specimens) with part in cell cu1 [#31?] aligned slightly more proximal; distal mark including large Y-shaped hyaline mark medially in cell cu1 [fused #32?, #33, #36] and aligned large posteromedial hyaline spot in cell dm [#23 and/or #24] (spot variously aligned with middle, with proximal branch and middle, or distal branch and middle of Y-shaped mark) isolating or nearly isolating brown mark anteriorly in cell cu1; cell cu1 with marginal hyaline mark on apex of vein A1+Cu2 [fused #34, #39] isolated; subapical marginal hyaline mark [#37] moderate to large. Cell dm with subapical spot [#25] small and hyaline (1 specimen) or usually faint, pale brown, sometimes indistinct.

Abdomen ( Figs. 119–120 ): Yellow on most of syntergite 1+2 and medially on all tergites (forming broad, tapering, straight margined medial vitta); lateral part of tergites, including margin, dark brown with narrow yellow spots, each side minimally with 2 short anterior spots on tergite 3 and 1 on tergite 4 ( Fig. 106 ), maximally with 2 rows of elongate spots on tergites 3–5 ( Fig. 105 ).

Female terminalia: Oviscape entirely dark brown; length 1.40 mm. Aculeus ( Fig. 163 ) 0.94–0.95 mm long, 1.86–1.92 times as long as wide, with acute scales dorsally and ventrally on membrane medially; tip slightly flared outward basolaterally, short and broad (lobed part 0.32–0.37 times as long as wide), with 7 digitiform, minutely serrate lobes separated by deep, narrow gaps; unpaired medial lobe almost twice as broad but only slightly longer than submedial lobe; lateral lobe projecting, moderately broad and blunt; sublateral lobe very broad, slanted. 8th sternite usually with pair of setulae on medial apical corner. Spermathecae subspherical, with strongly convoluted, broad sclerotized neck and with or without small cylindrical basal apodeme (similar to B. furcifer ).

Male terminalia: Medial surstylus long and slender, prensisetae subequal, closely approximated, separated by less than width of medial prensiseta.

Distribution. Low to middle elevation areas (250–750 m) of northeastern Bolivia and eastern Peru.

Type data. Holotype ♀ ( USNM USNMENT00213937 ), PERU: Madre de Dios: Manu, Río Manu, 5 km E of Pakitza, Aguajal , 19 Sep 1988, A. Freidberg . Paratypes: BOLIVIA: La Paz: 5 km W of Mapiri, Arroyo Tuhiri , 15°17.8'S 68°15.6'W, 750 m, 19 Mar 2001, S. D. Gaimari, 1♀ ( USNM USNMENT00056539 ) . PERU: Madre de Dios: Manu, Río Manu, Pakitza , 12°07'S 70°58'W, 250 m, 9–23 Sep 1988, A. Freidberg, 1♂ ( USNM USNMENT00213938 ) 1♂ 1♀ ( TAUI USNMENT00213939–40 ) ; Manu, near Salvación, Erika , 550 m, 5–6 Sep 1988, A. Freidberg, 2♂ ( USNM USNMENT00054208 , USNMENT00213936 ) .

Etymology. The name of this species is an adjective referring to the seven digitate lobes of the aculeus tip.

Figures

FIGURES 56–65. Wing: 56, B. quadristriata (Mexico: Los Tuxtlas, USNMENT00054201); 57, B. quetzali (holotype); 58–59, B. regina (lectotype; Mexico: Lagunas de Zempoala, USNMENT00213847); 60, B. rupta (lectotype); 61, B. ruptafascia (holotype); 62, B. septemdigitata (Peru: Pakitza, USNMENT00213939); 63, B. sinepuncta (Costa Rica: La Suiza, USNMENT00213918); 64–65, B. splendida (Guatemala: Pacayal, USNMENT00213874; Venezuela: Rancho Grande, USNMENT00213864).

FIGURES 90–93. Thorax, dorsal: 90–91, B. furcifer (Venezuela: Capirito, USNMENT00213927; Peru: Avispas, USNMENT00053665); 92, B. hirsuta (Brazil: Rio de Janeiro, USNMENT00054199); 93, B. septemdigitata (Peru: Erika, USNMENT00054208).

FIGURES 119–125. Abdomen, dorsal: 119–120, B. septemdigitata (Peru: Pakitza, USNMENT00213939–40); 121, B. cornelli (holotype); 122, B. furcifer (USNMENT00053665); 123, B. hirsuta (Brazil: Manaus, USNMENT00054198); 124, B. brevivittata (Costa Rica: Rincon de Osa, USNMENT00054203); 125, B. quadristriata (Mexico: Los Tuxtlas, USNMENT00054201).

FIGURES 156–164. Aculeus: 156, B. fernandezi (Brazil: Santarem, USNMENT00213888); 157–158, B. furcifer (Ecuador: Limoncocha, USNMENT00213928; lectotype); 159, B. lutea (Costa Rica: Golfito, USNMENT00213824); 160, B. quadristriata (Mexico: Los Tuxtlas, USNMENT00054200); 161, B. rupta (Mexico: Teapa, USNMENT00213796); 162, B. ruptafascia (holotype); 163, B. septemdigitata (Peru: Pakitza, USNMENT00213937); 164, B. unifasciata (holotype). ln = length, wd = width (of tip and gap).

FIGURES 106–108. Thorax, lateral: 106, B. femoralis (Mexico: El Triunfo, USNMENT00213770); 107, B. apaapa (Bolivia: Apa Apa, USNMENT00055944); 108, B. chaconi (Costa Rica: San Gerardo, USNMENT00048386).

FIGURES 102–105. Thorax, dorsal: 102–104, B. marshalli (holotype; Argentina: Camino la Cornisa, USNMENT00054210, USNMENT00054211); 105, B. tau (holotype).