Austroleptis longirostris, Fachin & Santos & Amorim, 2018

Fachin, Diego Aguilar, Santos, Charles Morphy D. & Amorim, Dalton De Souza, 2018, First two species of Austroleptis Hardy (Diptera: Brachycera: Austroleptidae) from Brazil, Zootaxa 4, pp. 557-574 : 559-562

publication ID	https://doi.org/ 10.11646/zootaxa.4369.4.6
publication LSID	lsid:zoobank.org:pub:1C5895F3-CB32-4BFE-8F10-FAFC9D5C5389
DOI	https://doi.org/10.5281/zenodo.5957971
persistent identifier	https://treatment.plazi.org/id/3CDDD760-2C23-43B2-AE38-ADBEE3B49D30
taxon LSID	lsid:zoobank.org:act:3CDDD760-2C23-43B2-AE38-ADBEE3B49D30
treatment provided by	Plazi
scientific name	Austroleptis longirostris
status	sp. nov.

Treatment

Austroleptis longirostris View in CoL nov. sp.

( FIGS 3 View FIGURES 3–4 , 5 View FIGURES 5–8 , 14, 17 View FIGURES 12–18 , 22, 24, 30, 31–32, 37–38)

Diagnosis (female). VENTRAL MARGIN OF FRONS SLIGHTLY PROjECTED, HEAD ALMOST AS LONG AS HIGH . SCAPE AND PEDICEL YELLOWISH, STRONGLY CONTRASTING WITH DARK bROWN FLAGELLOMERES. FLAGELLOMERE 1 WITH V-SHAPED DISTAL MARGIN, FLAGELLOMERES 1 AND 5 bEARING STRONG SETAE. PRObOSCIS LONG, MUCH LONGER THAN ANTENNA ( FIG. 3 View FIGURES 3–4 ). SCUTUM bASICALLY REDDISH-YELLOW EXCEPT FOR FOUR bROWNISH MARKS. WING WITH COMPLEX PATTERN, WITH LIGHT AND DARK bROWN MARKINGS; PTEROSTIGMA WITH YELLOWISH AREAS (FIG. 22).

Material examined. HOLOTYPE, ♀ ( LEFT WING AND SPERMATHECA SLIDE –MOUNTED), BRAZIL, Espírito Santo , DOMINGOS MARTINS, PARQUE ESTADUAL PEDRA AZUL, 20° 25’ 55” S, 41° 00’ 53” W, 26.VIII–02.IX.2003, MALAISE TRAP #B8, SAMPLE 0 1300, C.O. AZEVEDO & EQUIPE COL. (MZUSP).

Description. Female. BODY LENGTH (MM), 6.5; WING LENGTH, 5.0. Head ( FIGS 3 View FIGURES 3–4 , 5 View FIGURES 5–8 ). EYES DICHOPTIC; HEAD TWICE WIDER THAN LONG IN DORSAL VIEW, ROUGHLY AS HIGH AS LONG IN LATERAL VIEW, YELLOWISH WITH WHITISH MICROTRICHIA COVERING NEARLY ENTIRE SURFACE. OCCIPUT YELLOWISH; VERTEX AND POSTOCULAR AREA WELL-DEVELOPED, WITH LONG DARK bROWN bRISTLES. OCELLAR TUbERCLE DARK bROWN, STRONGLY CONTRASTING WITH YELLOWISH bACKGROUND, LONGER THAN WIDE, PROMINENT IN LATERAL VIEW. FRONS SHORT, MORE THAN TWICE WIDER THAN LONG. ANTENNA INSERTED AbOVE MID OF HEAD ( FIG. 3 View FIGURES 3–4 ), AS LONG AS HEAD LATERALLY. SCAPE AND PEDICEL YELLOWISH, SCAPE APPROXIMATELY AS LONG AS PEDICEL. FIVE LATERALLY COMPRESSED, DARK bROWN FLAGELLOMERES; FLAGELLOMERE 1 LARGER THAN REMAINING FLAGELLOMERES, bEARING STRONG SETAE bASALLY, DISTAL MARGIN V-SHAPED; FLAGELLOMERES 2–4 RObUST, RECTANGULAR, SHORT; TERMINAL FLAGELLOMERE TWICE LONGER THAN PREVIOUS FLAGELLOMERE, CYLINDRICAL, bEARING STRONG SETAE ( FIG. 3 View FIGURES 3–4 ). FACE AND CLYPEUS WELL-DEVELOPED, NOT PROjECTED; ORAL MARGIN PROjECTED VENTRALLY. PROXIMAL AND DISTAL SEGMENTS OF PALPUS SUbEQUAL IN LENGTH; PROXIMAL SEGMENT CYLINDRICAL, DISTAL SEGMENT ENLARGED DISTALLY, TAPERING TOWARDS APEX ( FIG. 3 View FIGURES 3–4 ). PRObOSCIS (INCLUDING LAbRUM AND LACINIA) MUCH LONGER THAN ANTENNA ( FIG. 3 View FIGURES 3–4 ). Thorax ( FIGS 14, 17 View FIGURES 12–18 ) (MOST SETAE NOT WELL PRESERVED). MOSTLY REDDISH YELLOW, EXCEPT bY TWO OVAL bROWN SPOTS ON ANTERIOR PART OF SCUTUM AND TWO INCONSPICUOUS MARKS POSTERIORLY; EXTREME TIP OF SCUTELLUM DARK bROWN; ANEPISTERNUM, KATERPISTERNUM AND MERON bROWN DISTALLY; MEDIOTERGITE bROWN MEDIALLY. A DEEP GROOVE SEPARATING SCUTUM AND SCUTELLUM. AN IRREGULAR LINE OF SLIGHTLY STRONGER DORSO-CENTRALS, OTHERWISE SCATTERED SETAE ON SCUTUM; SCUTELLUM WITH AbOUT THREE PAIRS OF SLIGHTLY STRONGER MARGINAL SCUTELLARS IN ADDITION TO SCATTERED DORSAL SETATION, SOME SETAE ON SMALL TUbERCLES (e.g., FIG. 14 View FIGURES 12–18 ). SETAE ON PROEPISTERNUM, DORSALLY ON ANEPISTERNUM. PROEPIMERON WIDE POSTERIORLY, ENTIRELY FUSED TO KATEPISTERNUM. PLEURAL SUTURE WITH ANGLE MEDIALLY, NEARLY INTERRUPTED. KATEPISTERNUM VENTRO-POSTERIORLY EXTENDING SLIGHTLY OVER MERON. KATEPIMERON WEAKLY SCLEROTIZED, bUT WITH A CLEAR SEPARATION FROM ANEPIMERON. MOST LEGS NOT PRESERVED; FORE LEG MOSTLY YELLOWISH, EXCEPT TIP OF TIbIA AND bASITARSUS, DISTAL FOUR TARSOMERES DARK bROWN; MID AND HIND COXAE bROWNISH ON PROXIMAL AND DISTAL ENDS. Wing (FIG. 22). WING MEMbRANE WITH COMPLEX PATTERNS WITH LIGHT bROWN/ DARK bROWN, ANTERIOR CELLS YELLOWISH WITH SMALL bROWN MACULAE. RATHER DELICATE DORSAL SETAE PRESENT ON RADIAL VEINS. R2+3 NEARLY STRAIGHT ON bASAL TWO-THIRDS, APICAL THIRD bENDING ANTERIORLY WITH ALMOST RIGHT ANGLE. R4+5 FORK SLIGHTLY bEYOND END OF DISCAL CELL. R4 NEARLY STRAIGHT ALONG DISTAL 6/7 OF ITS EXTENSION. R5 REACHING C SLIGHTLY bEYOND WING TIP. M1 SLIGHTLY bENT ANTERIORLY ON bASED THIRD, WITH SOME SINUOUSITY ALONG DISTAL TWO-THIRDS. NO EVIDENCE OF FREE M3, CONNECTION bETWEEN M2 AND M4 (M–M/M3) SINUOSE. CUA+CUP VEIN SLIGHTLY SHORTER THAN LENGTH OF M–CU. ANAL LObE WELL DEVELOPED, A1 SUGGESTED DUE SLIGHTLY DARKER COLOR, bUT NOT PRESENT AS A VEIN. ALULA bROAD, MEMbRANE ENTIRELY COVERED bY MICROTRICHIA. HALTER STEM YELLOWISH, KNOb bROWNISH. Abdomen ( FIG. 37 View FIGURES 35–40 ). CREAM YELLOWISH, PILOSITY bROWNISH, SHORT, SEGMENTS 1–4 WITH PAIRS OF INCONSPICUOUS TRANSVERSE bROWNISH MARKS ALONG DISTAL MARGIN; SEGMENT 1–4 WIDE, SEGMENTS 5–7 TAPERING. INTERSEGMENTAL MEMbRANE bETWEEN SEGMENTS 5/6, 6/7, AND 7/8 WELL-DEVELOPED. Terminalia ( FIGS 24 View FIGURES 24–25 , 30–32 View FIGURES 26–30 View FIGURES 31–34 ). THREE WELL SCLEROTIZED, DIGITIFORM SPERMATHECAE ( FIG. 24 View FIGURES 24–25 ). SPERMATHECAL DUCTS MOSTLY SLENDER, AT bASE OF GENITAL FORK WIDENED AND WITH STRIATION. TERGITE 8 RECTANGULAR, NEARLY TWICE AS LONG AS WIDE, SUbDIVIDED INTO AN ANTERIOR AND A POSTERIOR SCLERITE. STERNITE 8 ELONGATE, MORE THAN TWICE AS LONG AS WIDE, WIDENED TOWARDS DISTAL MARGIN; AREA OF GONAPOPHYSES NEARLY AS LONG AS WIDE. TERGITE 9 MUCH WIDER THAN LONG, WITH A PAIR OF UNSCLEROTIZED AREAS. STERNITE 9 (GENITAL FORK) ANTERIOR END SLENDER AND ELONGATE, bROADENING ON DISTAL TWO-THIRDS. TERGITE 10 NOT DIVIDED, bASAL HALF NEARLY RECTANGULAR, DISTAL HALF TRIANGULAR-SHAPED. STERNITE 10 STRONGLY POINTED POSTERIORLY; ALMOST ENTIRELY UNDERNEATH CERCAL SEGMENTS. CERCUS ONE-SEGMENTED.