Blepharoneura species

Norrbom, Allen L. & Condon, Marty, 2010, Revision of the femoralis group of Blepharoneura Loew (Diptera: Tephritidae) 2374, Zootaxa 2374 (1), pp. 1-139 : 70-71

Blepharoneura species near furcifer

Fig. 34

Diagnosis. This species, B. furcifer , ruptafascia , septemdigitata , 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. It differs from B. macwilliamsae , ruptafascia , quadristriata , and some specimens of the other two species in lacking brown markings on the mesonotum. It differs from B. furcifer and septemdigitata as follows: cell r1 without subapical hyaline spot [#6]; proximal marginal hyaline spot in cell r2+3 not extended into cell r4+5; cell dm with only one hyaline mark in basal 2/3; cell cu1 with medial hyaline mark not Y-shaped; and medial surstylus with prensisetae well separated. It also has a subapical hyaline spot [#25] in cell dm, whereas this spot is usually minute or absent in the other two species. The female is unknown.

Description. Head: Dark brown area on ocellar tubercle not extended towards postocellar seta. Medial occipital sclerite with pair of brown vittae on ventral half. Small dot-like brown spot anterolateral to medial vertical seta. Occipital suture narrowly red brown to dark brown.

Thorax: Entirely yellow. Basalare entirely yellow. Scutum entirely microtrichose. Dorsocentral seta aligned slightly anterior to postalar seta.

Legs: Entirely yellow.

Wing ( Fig. 34 ): Length 5.10–5.35 mm, width 2.65–2.87 mm, ratio 1.86–1.92. Crossvein r-m at 0.50–0.53 distance from bm-cu to dm-cu. Cell c with 2 rectangular to inverted trapezoidal hyaline spots, basal spot very narrow, both reaching costa and subcosta; medial brown area as dark as area of cell r1 posterior to pterostigma, much broader than both hyaline spots, in Panama male with very narrow, slightly paler, streak-like medial area. Pterostigma with large hyaline subapical spot [#3], sometimes reaching R1. Cells r1 and r2+3 basally (proximal to apex of R1) without hyaline spots except for minute spot in r1 posterior to apex of vein Sc. Radial cells medially with tapering acute triangular to nipple-shaped basal marginal hyaline mark [#5] in cell r1. Cell r2+3 without hyaline spot aligned with r1 mark, but with more distal hyaline spot [#9], touching R2+3 or R4+5 and more than half as wide as cell. Cell r4+5 with hyaline spot [#14] aligned with or slightly distal to r1 mark, touching R4+5 and extending half or slightly more than halfway across cell; with medial hyaline spot [#15] near anterior end of dm-cu small. Distally cell r1 without hyaline spots [#6]. Cell r2+3 with 2 elongate marginal hyaline marks, proximal mark [#10] ending at vein R4+5, distal mark [#11] aligned with mark in cell r4+5 forming concave band extending to posteroapical margin of r4+5 [including #18]. Cell m usually with 2 elongate marginal hyaline marks, proximal band [fused #26A, #26 and #27] reaching vein M, distal band [#29] reaching or almost reaching (1 wing of both specimens) vein M; cell r4+5 without hyaline markings aligned with bands in cell m. Cell br with subbasal hyaline spot [#12]. Cell bm with circular subbasal and subapical hyaline spots [#19, #20]. Posteromedial part of wing with 2 elongate hyaline marks or series of aligned spots; cell br with subapical hyaline spot [#13] reaching posterior margin; cell dm with subtriangular to L-shaped hyaline mark [fused #21, #22, #23, and possibly #24], broader posteriorly, its proximal margin aligned with subapical spot [#13] in br and with or almost with small proximal anterior spot in cell cu1; cell cu1 with isolated narrow marginal hyaline mark across apex of vein A1+Cu2 [fused #34, #39], with small proximal anterior hyaline spot [#31?] aligned with or slightly proximal to proximal part of mark in dm, and with medial band [fused #32?, #36] or (1 wing of Colombian ♂) anterior spot [#32?] and band reaching margin [#36], usually with proximal bend anteriorly, aligned slightly distal to mark in dm; subapical marginal hyaline mark [#37] moderate sized. Cell dm with subapical hyaline spot [#25] moderate sized.

Abdomen: Syntergite 1+2 with pair of small faint brown spots on posterior margin and small dark brown spot on posterolateral corner. Tergite 3 with 2 pairs of evenly spaced dark brown spots and L-shaped dark brown band on posterolateral margin. Tergites 4 and 5 with similar markings but on tergite 4 sublateral spot connected to posterolateral band, and on tergite 5 both spots fused with posterolateral band to form trilobed mark.

Male terminalia: Medial surstylus relatively short and broad, prensisetae subequal, not on lobes, separated by more than width of medial prensiseta.

Distribution. Lowland areas of Panama and Colombia.

Specimens examined. COLOMBIA: 70 km E of Buenaventura, Anchicayá , 400 m, 17–20 Feb 1970, D. M. Wood, 1♂ ( CNC USNMENT00213929 ) . PANAMA: Panamá: Barro Colorado National Monument , 20 Feb - 13 Mar 1985, D. A. Grimaldi, 1♂ ( AMNH USNMENT00213930 ) .

Remarks. The two males examined probably represent an undescribed species, but we are reluctant to formally name it until female specimens become available.

Figures

FIGURES 26–35. Wing: 26, B. cyclantherae (Mexico: Rt. 95, USNMENT00052304); 27–29, B. femoralis (Mexico: El Triunfo, USNMENT00213770; Brazil: Nova Teutonia, USNMENT00213754, USNMENT00052306); 30–31, B. fernandezi (Venezuela: El Limon, USNMENT00213886; Cumbre Roja, USNMENT00213885); 32–33, B. furcifer (Ecuador: Limoncocha, USNMENT00213928; Bolivia: San Carlos, USNMENT00213926); 34, B. sp. nr. furcifer (Panama: Barro Colorado USNMENT00213930); 35, B. hirsuta (Venezuela: Guatopo, USNMENT00213792).