Udamopyga malacophila 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 : 11-13

Udamopyga malacophila Lopes, 1940

( Figs 23–26 , 47 , 53 )

Udamopyga malacophila Lopes, 1940: 944 . Type locality: Brazil, Rio de Janeiro.

Udamopyga malacophaga: Lopes (1969a : 103.44, 1988: 106; incorrect spelling).

References. Dodge (1965; key); Lopes (1969a; catalog); Lopes (1973; biological notes); Lopes (1988; key); Pape (1996; catalog); Mello-Patiu et al. (2009; checklist).

Type-material examined. HOLOTYPE ♂: “225 [culture] [handwritten on white paper]” // [EX] “Col. Ins. O. Cruz [Collection Instituto Oswaldo Cruz] / N. 10045 [number of microscope slide] [printed on white paper]” // “ Holotype [printed on red paper, black frame]” // “ Udamopyga / malacophila / Lopes / Lopes Det. [printed on white paper, black frame]” // “MNRJ / 2295 [printed vertically on white paper]” (MNRJ) [holotype with abdomen dissected, terminalia on miscroscope slide; culture 225 was obtained from larvae bred from the gastropod Thaumastus taunaysi (de Férussac) (Bulimulidae) in Brazil, RJ, Rio de Janeiro, Grajaú, 16.x.1937, by H. S. Lopes].

PARATYPES: 1 ♀ (allotype): same data as holotype except microscope slide N o 10046 ( MNRJ) ; 1 ♂: Brazil, RJ, Rio de Janeiro, Grajaú , culture 227, 22.ix.1937, H.S. Lopes leg. ( MNRJ) ; 1 ♀: same data as previous except culture 230 and terminalia on microscope slide N o 13614 ; 1 ♀: same data as ♂ paratype except culture 260, 22.vi.1939, and terminalia mounted on microscope slide N o 13614 ( MNRJ) [paratypes in good condition; ♂ with terminalia glued to culture label; one ♀ with abdomen somewhat crushed].

Additional material examined. Brazil: 2 ♂♂, 2 ♀♀: Espírito Santo, Linhares , vi.1972, P.C. Elias leg. ( MNRJ) ; 1 ♂, Rio de Janeiro, Rio de Janeiro, Grajaú , xi.1937, H.S. Lopes leg. ( MNRJ) .

Diagnosis. Male cercus with conspicuous long setae on cercal base ( Figs 23–24 , 47 ); vesica formed of two rounded lobes with strong spinose ventral ornamentation and inner ventral margin with long spinose projections ( Figs 25–26 ); juxta formed of two long lobes, each with a concave depression on distal margin ( Figs 25–26 ). Female T6 with longitudinal crease along midline and roof-like appearance ( Fig. 53 ); ST5 longer than wide; ST6– 8 fused, ST7 about 2x as long as ST6, with a concave area near apex; ST8 membranous and indistinct; epiproct membranous, without setae.

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

Male (n = 5). Length: 10– 5 mm; parafacial, fronto-orbital plate, posterior ocular orbits and gena with golden pruinosity; frons about 0.23x head width at level of ocellar triangle; frontal vitta entirely dark brown; antenna with first flagellomere approximately 4x as long as pedicel; T4 with 3–4 lateral marginal setae; T5 with a row of 16 marginal setae and numerous long setae on the ventral face; ST5 arms with rounded apex [ST5 not dissected, so other features not visible]; cercus with numerous short apical setae besides long basal setae; cercal base slightly inclined posteriorly in lateral view and cercal prongs separated but parallel and close to each other in posterior view ( Figs 23–24 , 47 ); surstylus boomerang-like with numerous anterior setae ( Fig. 23 , 47 ); pregonite with a broad base, with apical half almost straight and apex slightly rounded, and with some setulae along posterior margin ( Figs 25 , 47 ); postgonite with base broader than slightly curved apex, with a long seta in basal half accompanied by several setulae ( Figs 25 , 47 ); vesica with proximal spinose ornamentation in ventral region and along inner ventral margin, and with two long, sclerotized, spinose projections ( Figs 25–26 ); juxta formed of two elongated and well individualized lobes, each with concave depression on distal margin (ventral view) ( Fig. 26 ); lateral stylus narrow and elongated, with a row of lateral spines along apical half; median stylus with rounded base and numerous apical spines ( Fig. 26 ).

Female (n = 5). Length: 9–13 mm; 5–7 well-developed frontal setae; T5 with 12 marginal setae; ST2 with one pair of long setae; ST4 with two pairs of long setae; ST5 longer than wide; terminalia yellowish-brown; T6 undivided, dorsally narrow, with a longitudinal crease along midline ( Fig. 53 ); ST5 longer than wide; ST6–8 fused; ST7 about 2x as long as ST6, with a concave area near apex; ST8 membranous and little distinct; epiproct membranous without setae ( Lopes 1940: figs 25–26).

Distribution. Brazil (Espírito Santo *, Góias, Rio de Janeiro, Santa Catarina).

Remarks. Udamopyga malacophila is morphologically similar to U. diversa and U. neivai . See remarks under U. diversa .

Figures

FIGURES 23–26. Udamopyga malacophila Lopes, male from Linhares (MNRJ). 23. Epandrium, cercus and surstylus, lateral view. 24. Cerci, posterior view. 25. Phallus and associated structures, lateral view. 26. Distiphallus, ventral view. Abbreviations: ce, cercus; im, inner ventral margin of the 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.