Revision of Telothyria van der Wulp (Diptera: Tachinidae) and twenty-five new species from Area de Conservacion Guanacaste in northwestern Costa Rica with a key to Mesoamerican species Author Fleming, AJ Agriculture and Agri-Food Canada, Ottawa, Canada https://orcid.org/0000-0002-0943-8047 ajfleming604@gmail.com Author Wood, D. Monty Agriculture and Agri-Food Canada, Ottawa, Canada Author Smith, M. Alex University of Guelph, Guelph, Canada https://orcid.org/0000-0002-8650-2575 Author Dapkey, Tanya University of Pennsylvania, Philadelphia, United States of America Author Hallwachs, Winnie University of Pennsylvania, Philadelphia, United States of America Author Janzen, Daniel University of Pennsylvania, Philadelphia, United States of America text Biodiversity Data Journal 2020 8 47157 47157 http://dx.doi.org/10.3897/BDJ.8.e47157 journal article http://dx.doi.org/10.3897/BDJ.8.e47157 1314-2828-8-e47157 1EB383EF49254AC6821DE622BD60C371 0E84784338D1531C908DFC75AF1E9FC3 Telothyria auranticrus Fleming & Wood sp. n. Materials Type status: Holotype . Occurrence: catalogNumber: CNC618908 ; recordedBy: B.V. Peterson ; individualID: CNC618908; individualCount: 1 ; sex: M ; lifeStage: adult ; preparations: pinned; Taxon: scientificName: Telothyriaauranticrus; phylum: Arthropoda; class: Insecta; order: Diptera; family: Tachinidae; genus: Telothyria; specificEpithet: auranticrus; scientificNameAuthorship: Fleming & Wood, 2019; Location: continent: Central America; country: Mexico ; countryCode: MX; stateProvince: Veracruz; verbatimLocality: Lake Catemaco; Identification: identifiedBy: AJ Fleming ; dateIdentified: 2019; Event: samplingProtocol: Hand collected ; verbatimEventDate: 17-Jun-1969 ; Record Level: language: en; institutionCode: CNC ; collectionCode: Insects ; basisOfRecord: Pinned Specimen Type status: Paratype . Occurrence: recordedBy: Jas. S. Hine ; sex: M ; lifeStage: adult ; preparations: pinned; Taxon: scientificName: Telothyriaauranticrus; phylum: Arthropoda; class: Insecta; order: Diptera; family: Tachinidae; genus: Telothyria; specificEpithet: auranticrus; scientificNameAuthorship: Fleming & Wood, 2019; Location: continent: Central America; country: Guatemala ; verbatimLocality: Los Amates; Identification: identifiedBy: AJ Fleming ; dateIdentified: 2018; Event: samplingProtocol: Hand collected ; verbatimEventDate: 16-Jan-2005 ; Record Level: language: en; institutionCode: CNC ; collectionCode: Insects ; basisOfRecord: Pinned Specimen Type status: Paratype . Occurrence: recordedBy: J.G. Chillcott ; sex: M ; lifeStage: adult ; preparations: pinned; Taxon: scientificName: Telothyriaauranticrus; phylum: Arthropoda; class: Insecta; order: Diptera; family: Tachinidae; genus: Telothyria; specificEpithet: auranticrus; scientificNameAuthorship: Fleming & Wood, 2019; Location: continent: Central America; country: Mexico ; countryCode: MX; stateProvince: San Luis Potosi ; verbatimLocality: 5 mi E of Xilitla; verbatimElevation: 487 ; Identification: identifiedBy: AJ Fleming ; dateIdentified: 2018; Event: samplingProtocol: Hand collected ; verbatimEventDate: 23-Jul-1954 ; Record Level: language: en; institutionCode: CNC ; collectionCode: Insects ; basisOfRecord: Pinned Specimen Description Male. Length: 9-11mm (Fig. 7 ). Head (Fig. 7 b ): frons narrow, 1/7 of head width; frontal vitta narrow, but prominent and visible 1/48 head width; gena 1/10 of head height; three reclinate orbital setae; anteriormost reclinate orbital almost equal to uppermost frontal seta; ocellar setae reduced but present, at most hair-like; outer vertical seta absent; fronto-orbital plate pale brassy-gold throughout; fronto-orbital plate with short pale reddish blonde hairs interspersed among frontal setae; parafacial pale silver; facial ridge bare with at most 6-8 supravibrissal hairs extending 1/5 the facial ridge; palpus elongate and digitiform with slight upward turn apically, sparsely haired along outer margin; arista brown, smoothly tapered, microtrichia at most equal to width of arista; postpedicel entirely orange; postocular region behind margin of eye upper half gold, with lower half including gena silver tomentose; upper half of occiput gold tomentose. Thorax (Fig. 7 a , c ): brassy-gold tomentose, with four distinct dorsal stripes, outer pair light and diffuse but evident, inner pair extending midway between 1st and 2nd dorsocentral setae; thorax entirely covered in dense plumose blonde hairs (sometimes sparse on disc of scutum); chaetotaxy: 4-5 postpronotal setae, basal setae arranged in a straight line; supra-alar setae 2:3; intra-alar setae 2:2; dorsocentral setae 3:3; acrostichal setae 3:3; katepisternum with two setae. Scutellum gold tomentose; with plumose hairs along anterior margins only, disc of scutellum with only short black setulae; two pairs of strong marginal setae (basal and subapical) and a small pair of crossed apical scutellar setae 1/5th as long as subapical scutellars; basal scutellar setae subequal in length to subapical setae; subapical setae straight; underside of scutellum bearing plumose blonde hairs below basal scutellar setae. Legs : all legs with yellow ground color, midleg and hindleg appearing darker due to dense covering of black hairs; anterior leg tibia with regular fringe of equally spaced setae along anteroventral surface, with two posterodorsal setae. Wings : basicosta orange; all veins bare, with only 1-2 setulae at base of R4+5; calypters pale white translucent, upper calyter with fringe of long white hairs. Abdomen (Fig. 7 a , c ): ground color dark brown dorsocentrally, with yellow lateroventrally apparent when viewed dorsally; ST1+2 dorsomedially dark brown over 3/5 with yellow laterally; T4 entirely dark brown ground color, and T5 entirely orange; T3-T5 with dense gold tomentum along anterior margin of tergite, diffusing over entire tergite appearing to have a golden sheen when viewed with the naked eye; T5 orange ground color with gold tomentum; a complete row of marginal setae on T4 and T5; median discal setae absent. Male terminalia : Sternite 5 with a wide deeply separated median cleft, widely U-shaped, margins tomentose; lateral lobes of sternite elongate, rounded and blunt apically, bearing many strong setae; basal section of sternite 5.75X as long as apical lobes. Cerci in posterior view sharply pointed, basally swollen along the basal 2/3, fused along entire length; medial shoulder well developed, anterior 1/3 narrow and needle-like sharply tapered. In lateral view cerci, with a strong beaklike downward curve, and several strong widely spaced setae along basal 1/5th. Surstylus in lateral view rounded and curved at tip, overall narrow digitiform in appearance; fused with epandrium; when viewed dorsally surstyli appear inwardly convergent with a very slight club or swelling apically. Distiphallus 4X as long as basiphallus and tubular, slightly pointed at apex. Female. Unknown at this time. Diagnosis Telothyria auranticrus sp. n. can be distinguished from all other Telothyria by the following combination of traits: frons narrow, fronto-orbital plate pale brassy-gold throughout, parafacial pale silver, two katepisternal setae, thorax entirely covered in dense plumose blonde hairs, sometimes sparse on disc of scutum, T4 entirely dark brown, and T5 orange with gold tomentum. Etymology Telothyria auranticrus sp. n. From the Latin adjective, " aurantium " for orange and the noun " crus " for leg, in reference to its bright orange legs. Distribution Mexico, Veracruz Province, Lake Catemaco; San Luis Potosi Province, Xilitila. Ecology Specimens hand collected two times, further ecology not available.