Eucelatoria gustavogutierrezi Burington 2022, sp. nov.
Creators: name: Burington, Zelia L.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tachinidae
Eucelatoria
Eucelatoria gustavogutierrezi

description: Eucelatoria gustavogutierrezi sp. nov.
(Figs 1A, 21, 41, 66, 86, 106, 121, 136, 152, 169, 176)
Type material. Holotype ♀, labeled “DHJPAR0034387”, “Voucher: D.H. Janzen & W. Hallwachs / DB: http:// janzen.sas.upen.edu/ Area de Conservacion Guanacaste,/ COSTA RICA./ 09 -SRNP- 35146”, “ HOLOTYPE / Eucelatoria / gustavogutierrezi/ Z.L. Burington [red label]”, “LEGS AWAY FOR DNA”, “Janzen06”, “ZLB_E.Ferox 00006” (CNC).
Paratypes, 1 ♂ and 4 ♀♀. Costa Rica — Guanacaste: 1 ♂, labeled “DHJPAR0050613”, “ Voucher: D.H. Janzen & W. Hallwachs / DB: http://janzen.sas.upen.edu/ Area de Conservacion Guanacaste,/ COSTA RICA./ 13 -SRNP-69094”, “ PARATYPE / Eucelatoria / gustavogutierrezi/ Z.L. Burington [yellow label]”, “LEGS AWAY FOR DNA”, “Janzen06”, “ZLB_E.Ferox 00008” [genitalia in vial under specimen] (CNC). 2 ♀♀, as previous except DHJPAR numbers “DHJPAR0049524” and “DHJPAR0053214”, SRNP numbers “12 -SRNP- 81030” and “13 -SRNP-35825”, and specimen identifiers “00007” and “00009” [first with terminalia in vial under specimen] (CNC). Heredia: 1 ♀, “ COSTA RICA: Heredia Prov. / La Selva Biol Sta. 58 m / 10°25.52′S [sic; N] 84°00.24′W / 2.I.2015 / J.O. Stireman, A. Eckhardt ”, “JOS115.20”, [pink label], “ Eucelatoria / (Xiphomyia grp?)”, “ZLB_E.Ferox 00405” (JOSC). 1 ♀, “WCCTR/ 7119”, “ Eucelatoria ”, “ COSTA RICA: Heredia Prov.,/ La Selva Biological Station,/ STR 1650, 3[/]22[/]2000/ L. Dyer, Coll.”, “Reared: Pantographa / suffusalis/ ex. Hampia/ appendiculata” (JOSC).
Recognition. This species is similar to other E. ferox group species with a single postsutural vitta, but is easily recognized by the large yellow to tan palpi and absent ocellar setae.
Etymology. By recommendation of Dr. Daniel Janzen, this species “is named in recognition of Dr. Gustavo Gutierrez Espeleta for his full support of the new collaborations between Costa Rica’s Area de Conservación Guanacaste and the Universidad de Costa Rica ”.
Description. [Described from 4 ♀♀ and 1 ♂.] Length 4.0– 5.5 mm (mean = 5.0 mm).
Head. Fronto-orbital plate, vertex, upper half of post-ocular plate, and vibrissal angle tomentum yellow, appearing dark gold. Genal dilation, lower half of post-ocular plate, postgena, and occiput tomentum ash-gray. Parafacial tomentum yellow on upper three-fourths, merging to ash-gray near ventral corner, occasionally entirely yellow. Pale occipital setae ash-gray, usually merging to yellow on upper half of occiput. Ocellar setae minute or apparently absent, not distinguishable from setulae of ocellar triangle, rarely with a single seta. Gena with 4 setae, subvibrissal ridge with 1 seta. Facial ridge with setulae on lower one-third to one-half. Postocellar setae one-third to two-thirds length of posterior reclinate orbital seta. Paravertical seta one-half to subequal to length of postocellar setae. Outer vertical seta undifferentiated in male, one-third length of inner vertical seta in female. Reclinate orbital setae 3. Frontal setae 4–5, last frontal seta level with arista base. Eye with short setulae, no more than 1–2 facets in length. Eye height to head height ratio 0.86–0.90 (mean = 0.88). Postpedicel length 0.41–0.44 (mean = 0.42) height of head. Facial ridge length 0.54–0.58 (mean = 0.56) height of head. Parafacial width 0.03–0.07 (mean = 0.04) lateral length of head. Pedicel 0.25–0.33 (mean = 0.30) length of postpedicel. Postpedicel 4.0–7.0 (mean = 5.4) times width of parafacial in lateral view. Vertex 0.22–0.23 width of head in dorsal view. Palpus tan to yellow; subcylindrical and slightly dilated at tip in male; greatly dilated and flattened at apex in female; with short dark setae apically, longer ventrally, shorter dorsally in female; with several thin black setae mediolaterally.
Thorax. Dorsomedial length 1.3 times width of thorax. Lateral tomentum ash-gray, merging to yellow on upper part of anepisternum. Dorsal tomentum yellow, appearing dark gold, occasionally gray medially. Presutural outer vitta subquadrate, width two times that of inner vitta, connected to postsutural vittae. Presutural inner thoracic vittae bar-shaped, narrowly separated from outer vittae, rarely fused to outer vittae creating two presutural vittae. Postsutural vittae apparently fused into a single vitta covering most of area; tomentum visible on subquadrate area posteromedially and adjacent to supra-alar and intra-alar setae. Scutellar dorsal tomentum diffuse, yellow to gray, covering apical third to one-half of dorsal area. Postpronotum with 3 setae. Presutural area with 2 supra-alar setae. Postsutural area with 4 dorsocentral setae. Scutellum with 1 pair discal setae; the long clothing setulae occasionally seeming as a false second pair. Fore tibia with a single posterodorsal seta. Wing hyaline. Calypters tan to cream colored.
Abdomen. Cuticle and setulae entirely black. Dorsal tomentum bands diffuse gray to yellow-gray, appearing gold in some individuals; covering one-third to one-half area of T3–5, narrower on T3 than T5; with distinct median vitta. Ventral tomentum bands ash-gray merging to yellow dorsally; covering three-fourths to entirety of T3–5. T4 with 2 pairs of median marginal setae and 2 pairs of lateral marginal setae.
Male terminalia (Figs 136, 152, 169). Sternite 5 basal plate with median teeth separated 0.53 width of basal notch; apical lobes subequal to length of basal plate. Postgonite broadly rounded on posterior margin, slightly narrowed from base to digitiform apex, the anterior emargination subequal in depth to width of postgonite at mid length. Surstylus paddle shaped, 2.5 times as long as wide, gradually curved on margins to blunt apex; the basal lobe small with distinct angle on margin. Cercus in lateral view slightly dilated at base, then gradually narrowed to parallel sided, with blunt apex; in caudal view gradually narrowed to mid length, then subparallel to apex. Upper lobe subquadrate, inner margin curved; 0.29 length of cercus. Median section 0.41 length of cercus. Apical cleft parallel sided, 0.28 length of cercus. Syncercus apex width in caudal view 0.42 width of syncercus base.
Female terminalia (Figs 106, 121). Piercer generally extending to base of T3 or beyond, often hidden between tergite edges, in lateral view sharply curved anterad near base, then gradually tapered to slightly bent apex; flat or concave anteriorally with strong ridge between anterior and lateral faces; in posterior view parallel sided on basal half, then gradually narrowed to tip. Aculeate lobe 2.5 times height of segment 7 base. End tergite halves irregularly fused medially, the unit more than four times as long as wide. Cercus with 6 setae, the ventral elongation subequal in length to width of cercus body. Postgenital plate with 10 setae.
Hosts. Thirteen individuals have been reared from caterpillars of Inga Mill. sp. (Oecophoridae) feeding on Neea psychotrioides Donn.Sm. (Nyctaginaceae) (Janzen & Hallwachs 2008), and one individual has been reared from Pantographa suffusalis Druce (Crambidae) feeding on Hampea appendiculata (Donn. Sm.) Standl. (Malvaceae) (Stireman et al. 2017).
Geographic extent and seasonal occurrence. Individuals of E. gustavogutierrezi sp. nov. are known from montane and moist lowland forests in Costa Rica at 50–1200 m elevation (Fig. 176).
Discussion. This species includes “Janzen06” in the Area de Conservación Guanacaste database (Janzen & Hallwachs 2008). Genetic data show no population structure; one individual from La Selva (ZLB_E.Ferox 00405) does not differ genetically from those in Guanacaste province (Fig. 1). The extent of yellow tomentum on the parafacial seems to vary within this species, as does the shape of the presutural thoracic vittae, but other characters are uniform.
description: Published as part of Burington, Zelia L., 2022, A taxonomic revision of the Eucelatoria ferox species group (Diptera: Tachinidae), pp. 1-104 in Zootaxa 5143 (1) on pages 49-51, DOI: 10.11646/zootaxa.5143.1.1, http://zenodo.org/record/6601404