Stomopogon hirtitibia ( Stein, 1911 ), Stomopogon inculta ( Stein, 1911 ), Stomopogon nigrisquama,

Fogaça, João M., Gomes, Lucas R. P., Couri, Márcia S., Rodríguez-Fernandez, Jaime I. & De Carvalho, Claudio J. B., 2021, Neotropical Stomopogon (Diptera, Muscidae): new species, redescriptions and key to species, Zootaxa 4903 (3), pp. 301-330: 319-326

publication ID

https://doi.org/10.11646/zootaxa.4903.3.1

publication LSID

lsid:zoobank.org:pub:60A2C8D6-4AD4-41EE-9916-C110452FE749

DOI

http://doi.org/10.5281/zenodo.4432549

persistent identifier

http://treatment.plazi.org/id/03BC4A6D-8005-FFA4-FF4F-F8AE6577C90E

treatment provided by

Plazi

scientific name

Stomopogon hirtitibia ( Stein, 1911 ) Stomopogon inculta ( Stein, 1911 ) Stomopogon nigrisquama
status

sp. nov.

Stomopogon hirtitibia ( Stein, 1911) 

( Figs 18View FIGURE 18 A–D, 19A–D)

Type-material examined. Lectotype. Male: “ Chile \ 17. x. 02 \ Palca [green, printed label and partially handwritten, 02 = 1902]”; “ LECTOTYPE ♁ \ Coenosia  \ hirtitibia \ Stein, 1911 \ Des. A. C. Pont 1999 [white printed label]” ( SMT) ( Fig. 18DView FIGURE 18)  . Paralectotypes 1♁ 6♀♀. Same data as lectotype  , 1♀ ( SMT). Sorata , 2300m, v. 1903  , 1♁ 1♀ ( SMT); xii. 1903  , 2♀♀ ( SMT), 19. xii. 1902  , 1♀ ( SMT). Peru, Chanchamayo , 18. i. 1904  , 1♀ ( SMT)  .

Additional material examined. Same data as lectotype, 1♀  ; 15. x. 02, 1♀; 20. x. 02, 1♀. Bolivia, La Paz, 30. xi. 02, 2♀♀  ; xi. 02, 1♀ ( SMT)  .

Diagnosis. Stomopogon hirtitibia  differs from all other species of the genus, but is similar to S. capribarba  , in having fore coxa with several long white setae and scutum with two large brown vittae. Stomopogon hirtitibia  can be separated from the latter by the black legs.

Redescription

Head ( Fig. 18BView FIGURE 18). Frontal vitta dark brown; fronto-orbital plate, face, parafacial and gena dense silvery pruinose. Eye bare, distance between eyes 0.41 of maximum head-width. Antenna dark brown, inserted on middle of eyes. 3 Frontal setae; proclinate orbital seta absent; 1 upper orbital seta; ocellar seta well developed; postocellar seta divergent with same ocellar seta length and inner vertical seta parallel with 1.2 times the ocellar seta length; outer vertical seta divergent and shorter than inner vertical seta; postpedicel about 2.5 times pedicel length. Proboscis shiny dark brown. Palpus filiform, a little enlarged at the apex.

Thorax ( Fig. 18CView FIGURE 18). Acrostichal setae 4+4; 5 anepisternal setae.

Legs ( Fig. 18AView FIGURE 18). Dark brown. Claws and pulvilli reduced. Fore femur with a complete row of long pd setae. Fore tibia with 1 p fine seta on median to apical half; 1 d and pd apical seta. Mid femur with an a row with 7 seta on basal to median half, 1 v row of 5 long fine setae; 2 p setae on apical half. Mid tibia with 1 p median seta; apical seta on d, a, v and p. Hind femur on ad to pv with many setae. Hind tibia with many long fine setae on all surfaces.

Abdomen ( Fig. 18AView FIGURE 18). Grey, with 4 pairs of central subquadrate spots on all tergites.

Terminalia  . Not examined.

Female ( Figs 5View FIGURE 5 B–C and 19A–D). Similar to male, but the tibiae are yellow. Fore coxa with several long black setae. Femur and hind tibia without many long fine setae on all surfaces. Ovipositor with hypoproct and epiproct rectangular.

Distribution. Bolivia (La Paz) and Chile (Tarapacá).

Stomopogon inculta ( Stein, 1911) 

( Figs 20View FIGURE 20 A–E, 21A–D, 22A–D)

Stomopogon acuta Malloch, 1934  . New synonymy.

Type-material examined. Lectotype of S. inculta  . Male: “ Chile \ 5. x. 02 \ Arica [green, printed label and partially handwritten, 02 = 1902]”; “ LECTOTYPE ♁ \ Coenosia  \ inculta \ Stein, 1911 \ Des. A. C. Pont 1999 [white printed label]” ( SMT) ( Fig. 20EView FIGURE 20). Paralectotypes of S. inculta  , 3♀♀. Same data as lectotype, 2♀♀ ( SMT); Caldera, 25. v. 1903, 1♀ ( SMT). The lectotype is not well preserved. The right mid and hind legs are glued to a piece of cardboard. Holotype of S. acuta  (New synonymy). Female: “ Chile \ DS Bulloch [white printed label]”; “Tocopilla \ ap. 10. 31 \ SeaBeach [ap = April; white, handwritten label]”; “Type No. \ H9865\ U. S. N. M. [red printed label]”; “ Angolia  \ acuta \ Type \ det. JRMALLOCH [white print and partially handwritten label]”; “USNMENT \ QrCode \ 01406049 [white printed label]” (USNM) ( Fig. 22DView FIGURE 22).

Diagnosis. S. inculta  is the only species that has fronto-orbital plate with many setulae ( Figs 20BView FIGURE 20, 21BView FIGURE 21, 22BView FIGURE 22) and parafacial wider than pedicel apart from S. capribarba  , from which it differs by the yellow pedicel.

Redescription

Head ( Fig. 20BView FIGURE 20). Frontal vitta dark brown; fronto-orbital plate, face, parafacial and gena dense silvery pruinose; proboscis shiny dark brown. Eye bare, distance between eyes 0.40 of maximum head-width. Antenna inserted on middle of eyes, postpedicel brown, about 1.5 times pedicel length. 5 frontal setae, between than 2 less developed; proclinate orbital seta absent; 1 upper orbital seta; ocellar seta well developed; postocellar seta divergent with same ocellar seta length; inner vertical seta parallel with 1.2 times of the ocellar seta length; outer vertical seta divergent and shorter than inner vertical seta. Palpus filiform, a little enlarged at the apex. Gena with strong, long setae.

Thorax ( Fig. 20CView FIGURE 20). Acrostichal seta reduced; intra-alar setae 1+1, postsutural reduced; 5 anepisternal setae.

Legs ( Fig. 20A, DView FIGURE 20). Black, with fore femur grey pruinose in basal half and yellowish on apical half. Claws and pulvilli well developed. Fore femur with a complete row of setae on pd and pv. Fore tibia with tarsi enlarged, mainly the last one. 1 p seta on median to apical half; 1 d and pd apical seta. Mid femur with 1 av seta on median half. Mid tibia with 1 pd, 1 p and 2 a median seta; apical seta on d, pd, a, v and p. Hind femur with a complete row of long setae on ad; 1 row of 6 long av setae on apical half; 1 d seta on apical half; 2 v setae on median half. Hind tibia with 3 ad, 4 pd and 1 a long setae ( Fig. 20DView FIGURE 20); preapical seta on a and v, all well developed.

Abdomen ( Fig. 20CView FIGURE 20). Grey, with 4 pairs of subtriangular central spots on all tergites, Sternite 5 not examined.

Terminalia  . Not examined.

Female ( Fig. 21View FIGURE 21 A–D, 22A–D). Similar to male, but without pairs of subtriangular central spots on all tergites.

Remarks. Stein (1911) described S. inculta  based on male (01) and females (03) from Chile. Years later, Malloch (1934) described S. acuta  based on only one female, also from Chile. Analyzing type specimens of both species, we observed that all external characters of S. inculta  are present in S. acuta  . Also, at couplet 2 of Couri and de Carvalho’s (2002) key, S. inculta  keys out to couplet 4 based on the absence of one anterior to posterior seta on the mid tibia. This, however, is in error, since this seta is present in S. inculta  . Following to the couplet 3, S. acuta  and S. inculta  key out together and share all characters. Based on these observations, we propose the synonym of S. acuta  with S. inculta  .

Distribution. Chile (Arica, Chañaral, Malleco).

Stomopogon nigrisquama  sp. nov.

( Figs 2View FIGURE 2 C–D, 4D–F, 6E–F, 8A–B, 23A–E, 24A–E)

Type-material examined. Holotype. Male: “ PERU: Cuzco: Est. Biol. \ Wayqecha , jct. Trochas \ Schefflera & Picaflor , \ Malaise trap, WP 583, \ 13.17385 º S 71.58808 º \ W, 2905m, 1- 12 Jun \ 2012, A. Norrbom, B. \ D. Sutton, B. Luz Puma & C. Quispe [white, printed label]” “ Holotype ” [red, printed label] ( USNM) ( Fig. 23EView FIGURE 23  ). Paratypes 11♁♁ 38♀♀. “ PERU: Cuzco: Est. Biol. \ Wayqecha, jct. Trochas \ Schefflera & Picaflor, \ Malaise trap, WP 583, \ 13.17385 º S 71.58808 º \ W, 2905m, 1-12 Jun \ 2012, A. Norrbom, B. \ D. Sutton, B. Luz Puma & C. Quispe [white, printed label]” “ Paratype ” [green, printed label], 2♁♁ 7♀♀ (USNM); “ PERU: Cuzco: Est. Biol. \ Wayqecha, jct. Trochas \ Schefflera & Picaflor, \ Malaise trap, WP 583, \ 13.17385 º S 71.58808 º W \, 2905m, 1-12 Jun 2012 \, A. L. Norrbom, B. D. Sutton, B. Luz Puma & \ C. Quispe [white, printed label]” “ Paratype ” [green, printed label], 4♁♁ 8♀♀ (USNM, DZUP); “ PERU: Cuzco: Est. Biol. \ Wayqecha, cabins area \ Malaise trap, WP 511, \ 13.58707 º S \ 71.58707 W, 2924 m, 1- \ 12 Jun 2012, A. L. \ Norrbom, B. D. Sutton, \ B. Luz Puma \ & C. Quispe [white, printed label]” “ Paratype ” [green, printed label], 1♁ 2♀♀ (USNM); “ PERU: Cuzco: Estacion \ Biologica Villa Carmen, \ Trail 8 mark 8-1654, \ 12’5409’’ S 71’2431’’W \ 707 m trap VC-ML-14, \ 27 Nov 2012 - 20 Jan \ 2013, A. L. Norrbom, E. \ Rodriguez, G. J. Steck, B. D. Sutton [white, printed label]” “ Paratype ” [green, printed label], 1♁ (USNM); “13056 - (EC) Zamora Chinchipe: San \ Francisco, Reserva Biológica San \ Francisco, trail Canal, 2000m, \ 03º58’30’’S 79º04’25’’W, 13/02/2009 - \ 18/02/2009 (WPT), leg. Marc Pollet & \ Anja De Braekeleer, sorted by Marc \ Pollet - sample code: EC/2009- \ 30/MP&ADB-008 [white, printed label]” “ Paratype ” [green, printed label], 6♀♀ (USNM); 13136 - same label information, 25/02/2009 - 3/03/2009, 1♀ (USNM); 13095 - same label information, 18-25/02/2009, 1♀ (USNM); “13102 - (EC) Zamora Chinchipe: San \ Francisco, Reserva Biológica San \ Francisco, trail Canal, 2000m, \ 03º58’30’’S 79º04’25’’W, 17-25/02/2009 (YPT), \ leg. M. Pollet & \ A. De Braekeleer, \ sorted by M. Pollet - sample code: \ EC/2009-33/MP&ADB-015 [white, printed label]” “ Paratype ” [green, printed label], 3♀♀ (USNM); “13103 - (EC) Zamora Chinchipe: San \ Francisco, Reserva Biológica San Fran \ cisco, trail

Canal, 2000m, \ 03º58’30’’S 79º04’25’’W, 17-25/02/2009 (YPT), \ leg. M. Pollet & \ A. De Braekeleer, \ sorted by M. Pollet - sample code: \ EC/2009-33/MP&ADB-016 [white, printed label]” “ Paratype ” [green, printed label], 1♁ 2♀♀ ( MNRJ); 13093 - same label information, 18-25/02/2009, MP&ADB-006, 2♀♀ (USNM); 13061 - same label information, 14/02/2009 - 18/02/2009, MP&ADB-013, 1♀ (USNM); 13054 - same label information, 13/02/2009 18/02/2009, MP&ADB-006, 1♀ (USNM); 13142 - same label information, 25/ 02-3/03/2009, MP&ADB-014, 1♀ (USNM); 13144 - same label information, 25/ 02-3/03/2009, MP&ADB-016, 1♀ (USNM); “13060 - (EC) Zamora Chinchipe: San \ Francisco, Reserva Biológica San \ Francisco, trail Canal, 2000m, \ 03º58’30’’S 79º04’25’’W, 13/02/2009 - \ 18/02/2009 (BPT), leg. Marc Pollet & \ Anja De Braekeleer, sorted by Marc \ Pollet - sample code: EC/2009- \ 33/MP&ADB-012 [white, printed label]” “ Paratype ” [green, printed label], 1♀ (USNM); 13099 - same label information, 18-25/02/2009, MP&ADB-012, 1♀ ( MNRJ); 13140 - same label information, 25/ 02-3/03/2009, MP&ADB-012, 1♁ ( MNRJ); “13096 - (EC) Zamora Chinchipe: San \ Francisco, Reserva Biológica San \ Francisco, trail Canal, 2000m, \ 03º58’30’’S 79º04’25’’W, 18/02/2009 - \ 25/02/2009 (RPT), leg. Marc Pollet & \Anja De Braekeleer sorted by Marc \ Pollet - sample code: EC/2009-33/MP&ADB-009 [white, printed label]”; “ Paratype ” [green, printed label], 1♀ (USNM).

Diagnosis. Stomopogon nigrisquama  sp. nov. is the only species that has brown halter and dark calypter.

Etymology. The specific epithet, nigrisquama  , refers to the brownish calypter.

Description

Holotype male. Length: Body: 2.5 mm. Wing: 2.6 mm.

Head ( Fig. 23BView FIGURE 23). Frontal vitta, fronto-orbital plate, face, parafacial and gena silvery pruinose. Eye with small and sparse white cilia. Antenna dark brown; arista enlarged at base with hairs shorter than diameter of the base, apical third bare. 4 frontal setae, the second one shorter than the others and the last one reclinate; 1 proclinate orbital seta; 1 upper orbital seta; ocellar seta well developed; postocellar seta divergent with same ocellar seta length; inner vertical seta parallel subequal in length of ocellar seta. Proboscis shiny dark brown. Palpus dark brown.

Thorax. Grey, light brown pruinose. Acrostichal setae 3+5; 7 anepisternal setae.

Legs ( Fig. 23AView FIGURE 23). Dark brown. Claws and pulvilli reduced. Fore femur with a complete pd and pv rows of setae. Fore tibia with 1 p median seta; preapical setae on d, p and pv. Mid femur with a series of long setae on a, av and pv; 1 preapical seta on p. Mid tibia with 1 p median seta; 1 apical setae on a, av, d, p, pd and v. Hind femur with a row of setae on a, ad, av, v and pv; 1 preapical seta on p. Hind tibia with many long fine setae on all surfaces, the 3 ad and 3 pd stronger than others; 1 preapical setae on a, ad, d, pd and v.

Abdomen ( Fig. 23CView FIGURE 23). Dark brown, greyish pruinose; with a pair of brown spots on second to fourth visible tergites. Sternite 5 U-shaped, covered with curled and long setae in the apical half ( Fig. 4DView FIGURE 4).

Terminalia  ( Fig. 4View FIGURE 4 E–F). Cercus longer than wide, apically medium bifurcate; surstylus covered with many short setae ( Fig. 2DView FIGURE 2); hypandrium long tubular; phallapodeme more or less the same diameter in all extension and bigger than hypandrium; pregonite with 2 setulae ( Fig. 2DView FIGURE 2) and longer than postgonite; postgonite with 4 setulae ( Fig. 2DView FIGURE 2).

Female ( Fig. 24View FIGURE 24 A–E). Length (n=16): Body: 3.0-3.5 mm; Wing: 2.7-3.3 mm. Similar to male, except for wing lighter; hind tibia with only 3 ad and 3 pd setae, 2 of them supramedian and one submedian.

Distribution. Ecuador (Zamora-Chinchipe), Peru (Cuzco).

Stomopogon inculta ( Stein, 1911) 

( Figs 20View FIGURE 20 A–E, 21A–D, 22A–D)

Stomopogon acuta Malloch, 1934  . New synonymy.

Type-material examined. Lectotype of S. inculta  . Male: “ Chile \ 5. x. 02 \ Arica [green, printed label and partially handwritten, 02 = 1902]”; “ LECTOTYPE ♁ \ Coenosia  \ inculta \ Stein, 1911 \ Des. A. C. Pont 1999 [white printed label]” ( SMT) ( Fig. 20EView FIGURE 20). Paralectotypes of S. inculta  , 3♀♀. Same data as lectotype, 2♀♀ ( SMT); Caldera, 25. v. 1903, 1♀ ( SMT). The lectotype is not well preserved. The right mid and hind legs are glued to a piece of cardboard. Holotype of S. acuta  (New synonymy). Female: “ Chile \ DS Bulloch [white printed label]”; “Tocopilla \ ap. 10. 31 \ SeaBeach [ap = April; white, handwritten label]”; “Type No. \ H9865\ U. S. N. M. [red printed label]”; “ Angolia  \ acuta \ Type \ det. JRMALLOCH [white print and partially handwritten label]”; “USNMENT \ QrCode \ 01406049 [white printed label]” (USNM) ( Fig. 22DView FIGURE 22).

Diagnosis. S. inculta  is the only species that has fronto-orbital plate with many setulae ( Figs 20BView FIGURE 20, 21BView FIGURE 21, 22BView FIGURE 22) and parafacial wider than pedicel apart from S. capribarba  , from which it differs by the yellow pedicel.

Redescription

Head ( Fig. 20BView FIGURE 20). Frontal vitta dark brown; fronto-orbital plate, face, parafacial and gena dense silvery pruinose; proboscis shiny dark brown. Eye bare, distance between eyes 0.40 of maximum head-width. Antenna inserted on middle of eyes, postpedicel brown, about 1.5 times pedicel length. 5 frontal setae, between than 2 less developed; proclinate orbital seta absent; 1 upper orbital seta; ocellar seta well developed; postocellar seta divergent with same ocellar seta length; inner vertical seta parallel with 1.2 times of the ocellar seta length; outer vertical seta divergent and shorter than inner vertical seta. Palpus filiform, a little enlarged at the apex. Gena with strong, long setae.

Thorax ( Fig. 20CView FIGURE 20). Acrostichal seta reduced; intra-alar setae 1+1, postsutural reduced; 5 anepisternal setae.

Legs ( Fig. 20A, DView FIGURE 20). Black, with fore femur grey pruinose in basal half and yellowish on apical half. Claws and pulvilli well developed. Fore femur with a complete row of setae on pd and pv. Fore tibia with tarsi enlarged, mainly the last one. 1 p seta on median to apical half; 1 d and pd apical seta. Mid femur with 1 av seta on median half. Mid tibia with 1 pd, 1 p and 2 a median seta; apical seta on d, pd, a, v and p. Hind femur with a complete row of long setae on ad; 1 row of 6 long av setae on apical half; 1 d seta on apical half; 2 v setae on median half. Hind tibia with 3 ad, 4 pd and 1 a long setae ( Fig. 20DView FIGURE 20); preapical seta on a and v, all well developed.

Abdomen ( Fig. 20CView FIGURE 20). Grey, with 4 pairs of subtriangular central spots on all tergites, Sternite 5 not examined.

Terminalia  . Not examined.

Female ( Fig. 21View FIGURE 21 A–D, 22A–D). Similar to male, but without pairs of subtriangular central spots on all tergites.

Remarks. Stein (1911) described S. inculta  based on male (01) and females (03) from Chile. Years later, Malloch (1934) described S. acuta  based on only one female, also from Chile. Analyzing type specimens of both species, we observed that all external characters of S. inculta  are present in S. acuta  . Also, at couplet 2 of Couri and de Carvalho’s (2002) key, S. inculta  keys out to couplet 4 based on the absence of one anterior to posterior seta on the mid tibia. This, however, is in error, since this seta is present in S. inculta  . Following to the couplet 3, S. acuta  and S. inculta  key out together and share all characters. Based on these observations, we propose the synonym of S. acuta  with S. inculta  .

Distribution. Chile (Arica, Chañaral, Malleco).

Stomopogon nigrisquama  sp. nov.

( Figs 2View FIGURE 2 C–D, 4D–F, 6E–F, 8A–B, 23A–E, 24A–E)

Type-material examined. Holotype. Male: “ PERU: Cuzco: Est. Biol. \ Wayqecha , jct. Trochas \ Schefflera & Picaflor , \ Malaise trap, WP 583, \ 13.17385 º S 71.58808 º \ W, 2905m, 1- 12 Jun \ 2012, A. Norrbom, B. \ D. Sutton, B. Luz Puma & C. Quispe [white, printed label]” “ Holotype ” [red, printed label] ( USNM) ( Fig. 23EView FIGURE 23  ). Paratypes 11♁♁ 38♀♀. “ PERU: Cuzco: Est. Biol. \ Wayqecha, jct. Trochas \ Schefflera & Picaflor, \ Malaise trap, WP 583, \ 13.17385 º S 71.58808 º \ W, 2905m, 1-12 Jun \ 2012, A. Norrbom, B. \ D. Sutton, B. Luz Puma & C. Quispe [white, printed label]” “ Paratype ” [green, printed label], 2♁♁ 7♀♀ (USNM); “ PERU: Cuzco: Est. Biol. \ Wayqecha, jct. Trochas \ Schefflera & Picaflor, \ Malaise trap, WP 583, \ 13.17385 º S 71.58808 º W \, 2905m, 1-12 Jun 2012 \, A. L. Norrbom, B. D. Sutton, B. Luz Puma & \ C. Quispe [white, printed label]” “ Paratype ” [green, printed label], 4♁♁ 8♀♀ (USNM, DZUP); “ PERU: Cuzco: Est. Biol. \ Wayqecha, cabins area \ Malaise trap, WP 511, \ 13.58707 º S \ 71.58707 W, 2924 m, 1- \ 12 Jun 2012, A. L. \ Norrbom, B. D. Sutton, \ B. Luz Puma \ & C. Quispe [white, printed label]” “ Paratype ” [green, printed label], 1♁ 2♀♀ (USNM); “ PERU: Cuzco: Estacion \ Biologica Villa Carmen, \ Trail 8 mark 8-1654, \ 12’5409’’ S 71’2431’’W \ 707 m trap VC-ML-14, \ 27 Nov 2012 - 20 Jan \ 2013, A. L. Norrbom, E. \ Rodriguez, G. J. Steck, B. D. Sutton [white, printed label]” “ Paratype ” [green, printed label], 1♁ (USNM); “13056 - (EC) Zamora Chinchipe: San \ Francisco, Reserva Biológica San \ Francisco, trail Canal, 2000m, \ 03º58’30’’S 79º04’25’’W, 13/02/2009 - \ 18/02/2009 (WPT), leg. Marc Pollet & \ Anja De Braekeleer, sorted by Marc \ Pollet - sample code: EC/2009- \ 30/MP&ADB-008 [white, printed label]” “ Paratype ” [green, printed label], 6♀♀ (USNM); 13136 - same label information, 25/02/2009 - 3/03/2009, 1♀ (USNM); 13095 - same label information, 18-25/02/2009, 1♀ (USNM); “13102 - (EC) Zamora Chinchipe: San \ Francisco, Reserva Biológica San \ Francisco, trail Canal, 2000m, \ 03º58’30’’S 79º04’25’’W, 17-25/02/2009 (YPT), \ leg. M. Pollet & \ A. De Braekeleer, \ sorted by M. Pollet - sample code: \ EC/2009-33/MP&ADB-015 [white, printed label]” “ Paratype ” [green, printed label], 3♀♀ (USNM); “13103 - (EC) Zamora Chinchipe: San \ Francisco, Reserva Biológica San Fran \ cisco, trail

Canal, 2000m, \ 03º58’30’’S 79º04’25’’W, 17-25/02/2009 (YPT), \ leg. M. Pollet & \ A. De Braekeleer, \ sorted by M. Pollet - sample code: \ EC/2009-33/MP&ADB-016 [white, printed label]” “ Paratype ” [green, printed label], 1♁ 2♀♀ ( MNRJ); 13093 - same label information, 18-25/02/2009, MP&ADB-006, 2♀♀ (USNM); 13061 - same label information, 14/02/2009 - 18/02/2009, MP&ADB-013, 1♀ (USNM); 13054 - same label information, 13/02/2009 18/02/2009, MP&ADB-006, 1♀ (USNM); 13142 - same label information, 25/ 02-3/03/2009, MP&ADB-014, 1♀ (USNM); 13144 - same label information, 25/ 02-3/03/2009, MP&ADB-016, 1♀ (USNM); “13060 - (EC) Zamora Chinchipe: San \ Francisco, Reserva Biológica San \ Francisco, trail Canal, 2000m, \ 03º58’30’’S 79º04’25’’W, 13/02/2009 - \ 18/02/2009 (BPT), leg. Marc Pollet & \ Anja De Braekeleer, sorted by Marc \ Pollet - sample code: EC/2009- \ 33/MP&ADB-012 [white, printed label]” “ Paratype ” [green, printed label], 1♀ (USNM); 13099 - same label information, 18-25/02/2009, MP&ADB-012, 1♀ ( MNRJ); 13140 - same label information, 25/ 02-3/03/2009, MP&ADB-012, 1♁ ( MNRJ); “13096 - (EC) Zamora Chinchipe: San \ Francisco, Reserva Biológica San \ Francisco, trail Canal, 2000m, \ 03º58’30’’S 79º04’25’’W, 18/02/2009 - \ 25/02/2009 (RPT), leg. Marc Pollet & \Anja De Braekeleer sorted by Marc \ Pollet - sample code: EC/2009-33/MP&ADB-009 [white, printed label]”; “ Paratype ” [green, printed label], 1♀ (USNM).

Diagnosis. Stomopogon nigrisquama  sp. nov. is the only species that has brown halter and dark calypter.

Etymology. The specific epithet, nigrisquama  , refers to the brownish calypter.

Description

Holotype male. Length: Body: 2.5 mm. Wing: 2.6 mm.

Head ( Fig. 23BView FIGURE 23). Frontal vitta, fronto-orbital plate, face, parafacial and gena silvery pruinose. Eye with small and sparse white cilia. Antenna dark brown; arista enlarged at base with hairs shorter than diameter of the base, apical third bare. 4 frontal setae, the second one shorter than the others and the last one reclinate; 1 proclinate orbital seta; 1 upper orbital seta; ocellar seta well developed; postocellar seta divergent with same ocellar seta length; inner vertical seta parallel subequal in length of ocellar seta. Proboscis shiny dark brown. Palpus dark brown.

Thorax. Grey, light brown pruinose. Acrostichal setae 3+5; 7 anepisternal setae.

Legs ( Fig. 23AView FIGURE 23). Dark brown. Claws and pulvilli reduced. Fore femur with a complete pd and pv rows of setae. Fore tibia with 1 p median seta; preapical setae on d, p and pv. Mid femur with a series of long setae on a, av and pv; 1 preapical seta on p. Mid tibia with 1 p median seta; 1 apical setae on a, av, d, p, pd and v. Hind femur with a row of setae on a, ad, av, v and pv; 1 preapical seta on p. Hind tibia with many long fine setae on all surfaces, the 3 ad and 3 pd stronger than others; 1 preapical setae on a, ad, d, pd and v.

Abdomen ( Fig. 23CView FIGURE 23). Dark brown, greyish pruinose; with a pair of brown spots on second to fourth visible tergites. Sternite 5 U-shaped, covered with curled and long setae in the apical half ( Fig. 4DView FIGURE 4).

Terminalia  ( Fig. 4View FIGURE 4 E–F). Cercus longer than wide, apically medium bifurcate; surstylus covered with many short setae ( Fig. 2DView FIGURE 2); hypandrium long tubular; phallapodeme more or less the same diameter in all extension and bigger than hypandrium; pregonite with 2 setulae ( Fig. 2DView FIGURE 2) and longer than postgonite; postgonite with 4 setulae ( Fig. 2DView FIGURE 2).

Female ( Fig. 24View FIGURE 24 A–E). Length (n=16): Body: 3.0-3.5 mm; Wing: 2.7-3.3 mm. Similar to male, except for wing lighter; hind tibia with only 3 ad and 3 pd setae, 2 of them supramedian and one submedian.

Distribution. Ecuador (Zamora-Chinchipe), Peru (Cuzco).

USNM

USA, Washington D.C., National Museum of Natural History, [formerly, United States National Museum]

DZUP

Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Muscidae

Genus

Stomopogon

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Muscidae

Genus

Stomopogon

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Muscidae

Genus

Stomopogon