Bryodemina valida (Wiedemann), 1830

Lamas, Carlos J. E., Yamaguchi, Carolina & Evenhuis, Neal L., 2024, Revision of the genus Bryodemina Hull (Diptera, Bombyliidae, Lomatiinae) with descriptions of two new Neotropical species, Zootaxa 5496 (3), pp. 301-331 : 322-328

Bryodemina valida (Wiedemann), 1830

( Figs 67–82 )

Anthrax valida Wiedemann, 1830: 636 . Type locality: “Oaxara in Mexikanischen” [= Mexico (Oaxaca)]; Hull, 1973: 316.

Anisotamia eximia Macquart, 1850: 419 (115). Type locality: “ Mexique ”; Hull, 1973: 316.

Oncodocera valida (Wiedemann) : Paramonov, 1930: 69 (419).

Ogcodocera eximia (Macquart) : Painter & Painter, 1962: 62.

Ogcodocera valida (Wiedemann) : Painter & Painter, 1962: 64; Hull, 1966: 227.

Bryodemina valida (Wiedemann) : Painter et al., 1978: 25.

Diagnosis. Ground color dark brown; wing hyaline with light brown infuscated area on the corner of anterior 1/3 and proximal 3/5; body covered by dark brown bristles except for large triangular patches of yellow bristles on each side of the last abdominal tergum. These yellow patches present some polymorphism on its length and may extend from tergites 2–8 or 5–7; spermathecal bulb pear-shaped.

Redescription. Male. Body length: 12.5–22.5 mm; Wing length: 13.3–21.0 mm; Head width: 2.7–4.5 mm. Head: eyes holoptic, slightly approximate in upper ¼, posterior margin of eye sinuous, conspicuous indentation with small black triangle area, without ommatidium, on vertex; frons dark brown, gray pollinose, with long, thin dark brown bristles and dark brown scales; face glossy dark brown, gray pollinose, with yellowish spatulate white bristles; oral margin with dark brown bristles ( Fig. 71 ); antenna dark brown gray pollinose, with base inserted on facial groove; scape cylindrical, twice as wide and long as pedicel with short, thin dark brown bristles and longer white bristles on ventral surface; pedicel with short, thin dark brown bristles; postpedicel seven times longer than pedicel, laterally compressed in dorsal view, with central longitudinal pit on inner surface; labellum oval, with short, delicate and sparse dark brown bristles; palpus short, dark brown gray pollinose, with short, thin and sparse light brown bristles; occiput dark brown, gray pollinose, with sparse short light brown bristles and whitish hyaline scales, dense short yellowish white bristles on occipital foramen margin; ocellar tubercle dark brown, gray pollinose, with proclinate long and thin dark brown bristles. Thorax: dorsal view ( Fig. 67 ): scutum velvety dark brown, with long, thin dark brown bristles, longer on anterior and lateral margins, posterior margin of scutum with short, thin dark brown bristles; notopleuron gray pollinose with spatulate, medium length, light yellow bristles and dark brown bristles, row of 3 long and very strong dark brown prealar bristles and sparse, strong dark brown bristles; postalar wall with medium length and thin dark brown bristles on anterior half, medium length and thin light brown bristles laterally, row of 5–6 very long, strong dark brown bristles; scutellum light brown, with short, thin dark brown bristles, longer and stronger on posterior margin; lateral view ( Fig. 68 ): postpronotal lobe gray pollinose, with dense, long and thin yellowish white mixed with dark brown bristles; anepisternum light brown, gray pollinose, with long, thin yellow bristles mixed with dark brown ones on upper half, long, thin dark brown bristles on lower half, denser at posterior margin; katepisternum light brown, gray pollinose with dense medium length and thin dark brown bristles; anepimeron light brown, gray pollinose with long, thin dark brown bristles on area posterior to anepimeral ridge; meron light brown, gray pollinose, bare; mediotergite light brown, gray pollinose with long, thin dark brown bristles; laterotergite light brown, gray pollinose, with long, thin dark brown bristles; metepisternum and metepimeron light brown, gray pollinose, with medium length and thin dark brown bristles; stalk of halter light brown; knob yellow. Legs: dark brown, gray pollinose; all coxae dark brown with gray pollinosity, with long, thin dark brown bristles; all trochanters with dark brown bristles; all femora with dark brown scales; fore and mid tibiae with longitudinal row of dark brown bristles on anterodorsal, anteroventral, posteroventral and posterodorsal surfaces; all tibiae with row of bristles around apex; tarsus with short, strong dark brown bristles, first tarsomere longer than others; pulvillus smaller than claws; fore leg: femur with row of short, strong dark brown bristles on anteroventral surface; mid leg: femur with row of strong dark brown bristles on anteroventral and 2–3 bristles on apical third of posteroventral surface; hind leg: femur with row of dark brown bristles on anteroventral, ventral and posteroventral surfaces; tibia with row of dark brown bristles on anteroventral, anterodorsal and posteroventral surfaces and spurs around apex. Wing: three times longer than wide, hyaline, except for light brown areas at basal costal (bc) cell, costal (c), basal medial (bm) cell and alula; costal (C) vein with dense dark brown bristles, longer near base and diminutive at posterior margin; tegula dark brown with short, thin dark brown bristles; R 4 slightly sinuate; cell r 5 closed at wing margin; CuA and CuP touching at wing margin, cell cua closed at wing margin; alula with medium length and thin light brown bristles on margin ( Fig. 73 ). Abdomen: glossy dark brown; lateral margin of tergites with dense tuft of long, thin dark brown bristles; abdominal tergites with medium length and thin dark brown bristles, tergite 5–7 with triangular dark yellow lateral patches of thin bristles, forming longitudinal central dark brown stripe ( Figs 67, 69 , 87, 88 ); sternites dark brown, with dense, long and thin dark brown bristles. Male terminalia: dorsal view ( Figs 74, 75 ): ejaculatory apodeme short not surpassing gonocoxal apodeme limits; distiphallus short, not surpassing apex of posterior process of gonocoxa; gonostylus conspicuously developed, inflated on posterior half, with pointed apex; ventral view ( Fig. 76 ): gonocoxites fused, with central ridge marking line of fusion on basal ¾ of gonocoxa; apical ¼ smoothly fused without visible line; lateral view ( Figs 77, 78 ): gonocoxa elongate; basiphallus wide and distiphallus thin with truncate apex; lateral aedeagal apodeme short, not surpassing gonocoxal apodeme margins; gonostylus elongate, pointed on apex; epandrium cap visor-shaped, with small notch on anterior margin and other 2 times deeper on posterior margin ( Figs 79, 80 ).

Female. Body length: 15.0–20.0 mm; Wing length: 15.1–22.0 mm; Head width: 3.2–4.5 mm. Similar to male, except for: Head: eyes dichoptic; eyes separated by distance of two times ocellar tubercle width; frons dark brown, gray pollinose, with long, thin dark brown bristles except white bristles and scales closer to eye margin and on area above antennae; oral margin with white bristles ( Fig. 72 ); scape with dorsal digitiform projection on apex; pedicel with short, thin yellowish white bristles on dorsal surface and dark brown bristles on ventral. Thorax: dorsal view ( Fig. 69 ): scutum velvety dark brown, with long, thin and sparse yellow bristles; lateral view ( Fig. 70 ): katepisternum with dense medium length and thin yellow and dark brown bristles on upper third; anepimeron with long, thin dark brown bristles on area posterior to anepimeral ridge. Legs: mid leg: femur with 3–4 strong dark brown bristles on apical third of posteroventral and on basal half of anteroventral surfaces. Female terminalia: acanthophorites (tergite 9+10) divided into two separate sclerites, 1/3 of tergite 8 length; acanthophorite spines long and spatulate, 1.5 times length of cerci ( Fig. 82 ). Spermathecae: spermathecal bulb pear-shaped, 1.5 times longer than wide, two times longer than sperm pump; basal spermathecal duct thinner than apical duct; sperm pump placed at apical 1/2 of spermathecal duct, with sclerotized collars equally developed on apical and basal ends of sperm pump; furca Ushaped, with membranous base not projected; lateral bars parallel with contorted right angle median fold; bar apexes divergent and pointed upwards ( Figs 81, 82 ).

Type material examined. SYNTYPES. 1 ♂, 1 ♀: Mexico: unknown locality, 1539 (♂ only), Deppe col. ( ZMHB) .

Additional material examined. Guatemala: GUATEMALA: Guatemala City (14.63 / -90.52), xi.1915, W.M Schauss col. (1 ♂, 1 ♀, USNM) . Mexico: Unknown locality, (1883) (1 ♀, NHW) , Winthem col. (1 ♀, NHW) ; unknown locality (1 ♀, OUMNH) ; GUERRERO: Taxco (18.48 / -99.55), 15.ix.1963, R.H. & E.M. Painter col. (1 ♀, USNM) ; Iguala (18.35 / -99.54), 31.viii.1959, R.H. & E.M. Painter col. (1 ♂, USNM) ; Chilpancingo (17.55 / -99.51), 31.viii.1959, R.H. & E.M. Painter col. (1 ♂, USNM) ; OAXACA: Oaxaca (16.34 / -95.93), 29.viii.1913, R.H. & E.M. Painter col. (1 ♂, USNM) ; same locality except, 5.ix.1959, R.H. & E.M. Painter col. (1 ♂, USNM) ; PUEBLA, Puebla (19.04 / -98.20), 14.viii.1972, G.F. & S. Hevel (1 ♂, USNM) ; VERACRUZ, Cotaxtla (18.84 / -96.40), 24.x.1957, W. Gibson col. (1 ♂, 3 ♀, USNM) , Orizaba , 5.v.1871 (1 ♀, NHW) ; Palma Sola (22.18 / -98.01), 28.viii.1964, B. & D. Sigwalt col. (1 ♀, MNHN) ; SINALOA, Villa Union (23.19 / -106.22)(1 ♂, 2 ♀, USNM) ; MORELOS, Cuernavaca (18.93 / -99.23), 12.ix.1963, ix.1923, R.H. & E.M. Painter col. (1 ♀, USNM) ; same locality except, E.G. Smyth (1 ♂, 1 ♀, USNM) ; JALISCO, Guadalajara , 31.viii.1962 (1 ♀, USNM) ; same locality except, 15.vii.1962 (1 ♀, SAMC) . Nicaragua: MATAGALPA: Matagalpa (12.93 / -85.92), 04.ix.1967, R.H. & E.M. Painter col. (2 ♂, 5 ♀, USNM) . USA: ARIZONA: Douglas (31.34 / -109.55), 6.viii.1962, M.A. Cazier col. (1 ♂, USNM) .

Geographical records. México (Guerrero, Oaxaca, Puebla, Veracruz, Sinaloa, Morelos and Jalisco), Nicaragua (Matagalpa), Guatemala ( Guatemala) and United States of America (Arizona).

Figures

FIGURES 67–73. Bryodemina valida. 67. Syntype male habitus, dorsal view; 68. Male habitus, lateral view (Scale bar, 2.0 mm); 69. Syntype female habitus, dorsal view; 70. Female habitus, lateral view (Scale bar, 2.0 mm); 71. Male head, frontal view (Scale bar, 0.5 mm); 72. Female head, frontal view (Scale bar, 1.0 mm); 73. Male right wing, dorsal view (Scale bar, 1.0 mm).

FIGURES 74–80. Bryodemina valida, male terminalia. 74. Dorsal view (epandrium removed), line drawing (Scale bar, 0.2 mm); 75. Dorsal view; 76. Ventral view; 77. Lateral view, line drawing (Scale bar, 0.1 mm); 78. Lateral view; 79. Epandrium, dorsal view, line drawing (Scale bar, 0.2 mm); 80. Epandrium, dorsal view.

FIGURES 81–82. Bryodemina valida, female terminalia. 81. Spermathecae and furca, line drawing; 82. Spermathecae, furca, tergite 8 and acanthophorites (tergites 9+10).

FIGURES 83–89. Abdomen pattern of Bryodemina species, dorsal view. 83. Bry. ayalai sp. nov., male (Scale bar, 1.0 mm); 84. Bry. ayalai sp. nov., female (Scale bar, 0.5 mm); 85. Bry. enigmatica sp. nov., male (Scale bar, 1.0 mm); 86. Bry. fasciata, male (Scale bar, 1.0 mm); 87. Bry. valida, male (Scale bar, 1.0 mm); 88. Bry. valida, female (Scale bar, 1.0 mm); 89. Bry. hedickei, male (Scale bar, 1.0 mm).