Udamopyga neivai Lopes, 1940

Santos, Josenilson Rodrigues Dos & Mello-Patiu, Cátia Antunes De, 2018, Review of the Brazilian species of Udamopyga Hall, 1938 (Diptera: Sarcophagidae), with the description of a new species and a key to males and females, Zootaxa 4508 (1), pp. 1-27 : 13-15

Udamopyga neivai Lopes, 1940

( Figs 27–31 , 48 , 54 )

Udamopyga neivai Lopes, 1940: 942 –944. Type locality: Brazil, Rio de Janeiro.

References. Lopes (1941; diagnosis of female); Lopes (1943; descriptions of larval instars 1 and 3); Dodge (1965; key); Lopes (1969a; catalog); Lopes (1973; biological notes); Lopes (1975a; comments on morphological differences in populations from Rio de Janeiro and Ceará); Lopes (1988; key); Pape (1996; catalog); Mello-Patiu et al. (2009; checklist); Buenaventura & Pape (2018; sarcophagine phylogeny).

Type-material examined. HOLOTYPE ♂: “ Rio de Janeiro / Grajahu [ Grajaú ] S. Lopes [printed on white paper, black frame]” // [ EX] “ Col. Ins. O. Cruz [Collection Instituto Oswaldo Cruz] / N. 10043 [permanent microscope slide] [printed on white paper, black frame]” // “cultura [culture] / N. 269 [printed on white paper, black frame]” // “ Holotype [printed on red paper, black frame]” // “ Udamopyga / neivai / Lopes / Lopes Det. [printed on white paper, black frame]” // “ MNRJ / 2296 [printed vertically on white paper]” ( MNRJ) [holotype with abdomen dissected and terminalia mounted on a microscope slide].

PARATYPES: 1 ♂: same data as holotype ( MNRJ) . 1 ♂, 1 ♀: same data as holotype except culture 260, both obtained in 22.vii.1939 from larvae bred from the gastropod Thaumastus taunaysi and female terminalia mounted on microscope slide N.13612 ( MNRJ) ; 1 ♀: same data as holotype except culture 222, obtained in xi.1937 ( MNRJ) ; 1 ♀: same data as holotype except culture 226 ( MNRJ) ; 1 ♀: same data as holotype except culture 227 ( MNRJ) ; 2 ♀♀: same data as holotype except culture 230 ( MNRJ) [paratypes in good conditions; one ♂ and three ♀♀ with terminalia dissected].

Additional material examined. Brazil: 1 ♂, Rio de Janeiro, Rio de Janeiro, Grajaú , 21.xi.1940, Lopes & Oliveira leg. ( MNRJ) ; 1 ♂, Rio de Janeiro, Rio de Janeiro, Grajaú , 28.iv.1946, H.S. Lopes leg. ( MNRJ) ; 2 ♀♀, 1 ♂, Ceará, Pacatuba , 350 m, 22.viii.1973, H.S. Lopes leg. ( MNRJ) ; 1 ♀, Ceará, Pacatuba , culture 1119, 23.viii.1973 H.S. Lopes leg. ( MNRJ) .

Diagnosis. Male cercus with a conspicuous tuft of long and hair-like setae on cercal base ( Figs 28–29 , 48 ); vesica formed of two rounded lobes (lateral view) and with inner ventral margin as spinose projections ( Figs 30– 31 , 48 ); juxta formed of two long lobes, each with a slightly convex dilatation on distal margin (ventral view) ( Figs 30–31 , 48 ). Female T6 with longitudinal crease along midline ( Fig. 54 ); ST5 longer than wide; ST6–8 fused; ST7 about 2x as long as ST6, with a discal concavity near apex ( Fig. 54 ); ST8 membranous and indistinct, epiproct membranous, with two pairs of setae.

Redescription. Differs from U. squamata sp. nov. as follows:

Male (n = 6). Length: 10–15 mm; parafacial, fronto-orbital plate and posterior ocular orbits with golden pruinosity; frons about 0.24x head width at level of ocellar triangle; frontal vitta entirely dark brownentire; 7–10 well-developed frontal setae reaching level of apex of pedicel; gena and genal groove dark brown with golden pruinosity; postgena black with golden pruinosity and whitish setae; antenna dark brown; 9–12 meral setae; T4 with two or three pairs of lateral marginal setae; T5 with 12 marginal setae; ST5 with sharp-pointed arms and window as long as wide ( Fig. 27 ); cerci fused along their whole length (posterior view); cercal prong distally narrowed with apex slightly rounded in lateral view and straight in posterior view ( Figs 28–29 , 48 ); surstylus robust with narrowed base and enlarged apex with setae anteriorly, covered with microtrichia in proximal half ( Figs 28 , 48 ); pregonite sub-equal in size to postgonite, with narrow and curved apex ( Figs 30 , 48 ); postgonite with long seta near apex ( Fig. 30 ); hypandrium of approximately the same length as phallapodeme; distiphallus longer and wider than basiphallus ( Fig. 30 ); inner ventral margin of vesica with two long, sclerotized, spinose projections ( Figs 30–31 ); juxta formed of two long and well-individualized lobes, narrow in lateral view and broad in ventral view, each with a slightly convex dilatation on distal margin (ventral view) ( Figs 30–31 , 48 ); median stylus short and almost straight, with margin serrated in apical half ( Fig. 31 ); lateral stylus arched, slightly longer than median stylus and with a distinct row of spines ( Fig. 31 ).

Female (n = 9). Length: 11–14 mm; frons about 0.23x head width at level of ocellar triangle; ST2 with three pairs of long setae; ST3–5 each with one pair of long setae; ST5 longer than wide; ST7 about 2x as long as ST6, with a discal concavity near apex ( Fig. 54 ); ST8 membranous and not very distinct; epiproct membranous, with two pairs of setae ( Lopes 1940: figs 29–30).

Distribution. Brazil (Ceará, Rio de Janeiro).

Remarks. Udamopyga neivai is morphologically similar to U. diversa and U. malacophila ; see remarks under U. diversa . Lopes (1975a) pointed out differences between populations from the Brazilian states of Ceará and Rio de Janeiro (type-locality), especially related to some color variation; however, our comparative study did not show significant differences in the terminalia of both sexes.

Figures

FIGURES 27–31. Udamopyga neivai Lopes, male from Grajaú (MNRJ). 27. Sternite 5, ventral view. 28. Epandrium, cercus and surstylus, lateral view. 29. Cerci, posterior view. 30. Phallus and associated structures, lateral view. 31. Distiphallus, ventral view. Abbreviations: ce, cercus; im, inner ventral margin of vesica; ju, juxta; ls, lateral stylus; ms, median stylus; po, postgonite; pp, paraphallus; pr, pregonite; su, surstylus; ve, vesica. Scale bars = 0.2 mm.

FIGURES 46–51. Male terminalia of Udamopyga Hall spp., lateral view. 46. Udamopyga diversa Lopes (specimen from Guarapari, MNRJ). 47. Udamopyga malacophila Lopes (paratype, MNRJ). 48. Udamopyga neivai Lopes (paratype, MNRJ). 49. Udamopyga percita (Lopes) (specimen from Guarapari, MNRJ). 50. Udamopyga provecta (Lopes) (specimen from Dourados, MNRJ). 51. Udamopyga setigena (Enderlein) (paratype, MNRJ). Scale bars = 0.5 mm.

FIGURES 52–57. Female terminalia of Udamopyga Hall spp., posterior view. 52. Udamopyga diversa Lopes (allotype, MNRJ). 53. Udamopyga malacophila Lopes (specimen from Linhares, MNRJ). 54. Udamopyga neivai Lopes (paratype, MNRJ). 55. Udamopyga percita (Lopes) (specimen from Guarapari, MNRJ). 56. Udamopyga provecta (Lopes) (paratype, MNRJ). 57. Udamopyga setigena (Enderlein) (paratype, MNRJ). White arrows point to T6, green arrows point to discal concavity on ST7. Scale bars = 0.5 mm.