Blepharoneura biseriata Wulp, 1899

Norrbom, Allen L. & Condon, Marty, 2010, Revision of the femoralis group of Blepharoneura Loew (Diptera: Tephritidae) 2374, Zootaxa 2374 (1), pp. 1-139 : 47-51

publication ID	https://doi.org/ 10.11646/zootaxa.2374.1.1
DOI	https://doi.org/10.5281/zenodo.5324512
persistent identifier	https://treatment.plazi.org/id/038687BA-FF94-FFC0-6DC8-F989FC6FF842
treatment provided by	Felipe
scientific name	Blepharoneura biseriata Wulp
status

Treatment

Blepharoneura biseriata Wulp View in CoL

Figs. 13 View FIGURES 6–15 , 173–174 View FIGURES 173–181

Blepharoneura biseriata Wulp 1899: 411 View in CoL [in key], 413 [description]; Hendel 1914: 21 [in key, in catalog]; Aczél 1950:

195 [in catalog]; Foote 1965: 241 [type data]; Foote 1967: 18 [in catalog]; Norrbom et al. 1999: 105 [in catalog]. Blepharoneura btseriata: Aczél 1950: 195 View in CoL [misspelling].

Diagnosis. This species belongs to the femoralis complex (see diagnosis of B. femoralis ), species of which are difficult to distinguish except by aculeus shape. The aculeus of B. biseriata is less elongate than that of B. nigrifemur , and it differs from those of the other species of the complex in having the lateral lobe very weak or absent.

Description. Head: Dark brown area on ocellar tubercle extended to postocellar seta. Medial vertical seta in yellow area. Medial occipital sclerite with pair of brown submedial vittae on ventral half. Occipital suture narrowly dark brown, on lateral side bordered by slightly paler triangular area, extended dorsolaterally beyond postocular setae almost to eye margin except for small circular yellow area around lateral vertical seta.

Thorax: Scutum nonmicrotrichose except posterior to acrostichal seta and laterally, with 2 pairs of dark brown vittae or rows of spots; submedial vitta interrupted or narrowed slightly posterior to transverse suture and not connected to mark on posterior margin; sublateral vitta broadly interrupted at transverse suture and separated from mark on posterior margin; posterior margin with 1 broad brown mark narrowed medially. Notopleuron with dark brown vitta on lateral margin. Small brown spot anterior to postsutural supra-alar seta present, narrowly connected along transverse suture to brown vitta anterior to postalar seta. Large brown spot lateral to dorsolateral corner of scutellum present. Scutellum with single inverted U-shaped medial brown mark extended to basal margin. Subscutellum and mediotergite with pair of dark brown vittae, extended to lateral margin on ventral half of mediotergite. Pleuron mostly dark brown, yellow only on propleuron, most of anepisternum (except large dorsomedial dark brown spot extending ventrally to level of anterior seta, and narrowly in posteroventral corner), extreme posterior corner of katepisternum, all of katepimeron, greater ampulla, narrow dorsal margin and sometimes narrow posterior and ventral margins of anepimeron, and narrow dorsal margins of katatergite and anatergite expanding to larger spot posterodorsally on katatergite and anteriorly on anatergite. Basalare brown. Dorsocentral seta aligned slightly anterior to postalar seta.

Legs: Mostly yellow. Hind femur with entire apical 1/5 dark brown.

Wing ( Fig. 13 View FIGURES 6–15 ): Length 5.44–5.70 mm, width 2.67–2.70 mm, ratio 2.04–2.11. Crossvein r-m at 0.53–0.54 distance from bm-cu to dm-cu. Cell c with 2 rectangular hyaline spots, both reaching costa and subcosta; medial brown area as dark as to slightly paler than area of cell r1 posterior to pterostigma, narrower than both hyaline spots. Pterostigma with large subapical hyaline spot [#3] reaching R1. Cells r1 and r2+3 basally (proximal to apex of R1) with 1–2 and 1 pale brown or hyaline spots, respectively. Radial cells medially with 1 broad quadrate basal hyaline mark [#5 fused with additional spot?] in cell r1, usually partially divided posteriorly by brown spot; cell r2+3 with 2 hyaline spots [#8, #9] aligned with r1 mark, both extending across cell, distal spot broader; cell r4+ 5 in anterior half with small hyaline spot [#14] aligned with middle of r1 mark, approximately half as wide as cell, and with medial hyaline spot [#15] near anterior end of dm-cu small; sometimes with small to minute anterior hyaline spot [#48] near midlength not touching vein R4+5. Distally cell r1 with 1 marginal subapical hyaline spot [#6]. Cell r2+3 with 2 marginal ovoid hyaline spots [#10A, #11] and subapical spot posterior to proximal spot [#10B]. Cell r4+5 with small hyaline spot [#16] anteriorly, aligned between apical marks in cell r2+3, or (1 wing of 1 specimen) with 2 spots aligned with apical marks in cell r2+3; with 1 posterior ovoid hyaline spot aligned with distal mark in cell m; and with 2 ovoid marginal or submarginal hyaline spots [#18, #18A]. Cell m without subbasal hyaline spot [#49] near midlength of dm-cu; with 2 large marginal hyaline spots [#27, #29] and 1 large anteromedial spot [fused #26, #26A]. Cell br with subbasal hyaline spot [#12]. Cell bm without subbasal hyaline spot [#19], with large circular subapical hyaline spot [#20]. Cell bcu usually without hyaline spot in lobe (present on 1 wing of 1 specimen). Posteromedial part of wing with large hyaline areas; cell br with subapical hyaline spot [#13]; cell dm with broad and long hyaline area [fusion of at least #51, #52, #21, #22, #23, #24, sometimes #50], sometimes narrowly or partially divided by pale brown into 2–3 spots, aligned with large hyaline mark in cell cu1, anteriorly extending to or almost to level of r-m, but distal margin oblique or tapered, extending farther posteriorly than anteriorly; cell cu1 medially with 5 barely separated spots, or with broad medial Y-shaped mark [fused #32, #33, #36] and more proximal anterior [#31] and posterior [fused #34, #39] spots, or with all of these connected to form large anteriorly trilobed and posteriorly bilobed mark isolating 2 small anterior and 1 small submarginal brown spot; subapical marginal hyaline spot [#37] reaching vein Cu1. Cell dm with anteromedial subapical hyaline spot [#25] moderately large, isolated.

Abdomen: Syntergite 1+2 with pair of irregular posterolateral brown marks, separated medially, formed from fused submedial and sublateral spots and posterolateral bands. Tergites 3–5 with pair of irregular posterolateral brown marks, separated medially, formed from fused submedial and sublateral spots and posterolateral bands; also with isolated anterolateral spots.

Female terminalia: Oviscape entirely dark brown; length 0.90 mm. Aculeus ( Fig. 173–174 View FIGURES 173–181 ) 0.43 mm long, 2.00–2.08 times as long as wide, with acute scales dorsally and ventrally on membrane medially; tip somewhat blunt, slightly angular basolaterally, without distinct lateral lobe, short to slightly elongate triangular (lobed part 0.43–0.54 times as long as wide), with small, weakly trilobed medial lobe and 2 pairs of small, somewhat step-like lobes separated by shallow gaps, lobes and gaps slightly larger in Huipulco female; sublateral and submedial lobes similar in size. Spermathecae subspherical, with straight slender sclerotized neck and large cylindrical basal apodeme (similar to B. femoralis ).

Male terminalia: Medial surstylus with prensisetae subequal, separated by several times width of medial prensiseta, medial prensiseta on moderately long lobe, lateral prensiseta on short lobe.

Distribution. Mexico (Distrito Federal, Guerrero). The holotype was collected at over 2100 m elevation.

Type data. Holotype ♀ ( BMNH), MEXICO: Guerrero: Sierra de las Aguas Escondidas , 7000 ft. [2134 m], Jul, H. H. Smith [examined].

Other specimens examined. MEXICO: [Distrito Federal:] Huipulco , [19°17'N 99°09'W], 21 Aug 1922, E. G. Smyth, 2♂ 1♀ ( USNM USNMENT00213948–50 View Materials ) GoogleMaps .

Remarks. A single headless female from Sinaloa, Mexico (El Palmito, 2.5 mi E of, 21 Aug 1964, E. I. Schlinger, UCR USNMENT00213947) may be B. biseriata or a very similar species. It has only minor differences with B. biseriata in wing pattern ( Fig. 14 View FIGURES 6–15 ) (cell c with medial brown area almost as broad as both hyaline spots; cell cell r2+3 basally without hyaline spot; distally cell r2+3 without hyaline spot posterior to proximal marginal spot [posterior part of #10 absent]; cell bm with circular subbasal hyaline spot [#19]) and is similar in other external characters, but the aculeus ( Fig. 175 View FIGURES 173–181 ) lacks scales on the medial membrane ventrally, and the dorsal scales are predominantly polygonal, becoming acute only proximally. Also, the base of the aculeus tip is rounded laterally, lacking the normal lateral lobe, whereas in B. biseriata there is a slight angle. Further specimens and data are needed to clarify the status of this female.