Calycomyza richardsi ( Spencer, 1963 )

Monteiro, Nilton Juvencio Santiago & Esposito, Maria Cristina, 2017, New species and new records of Calycomyza Hendel (Diptera: Agromyzidae) in Brazil, Zootaxa 4338 (3) : -

Calycomyza richardsi ( Spencer, 1963)

Fig 34–43

Phytobia (Calycomyza) richardsi Spencer, 1963: 348 .

Calycomyza richardsi: Sasakawa, 1992: 16 ; Spencer et al., 1992: 293.

Description. Wing length 2mm in male and 2,1mm in female. Acrostichal setae in six rows; dorsocentral setae 0+3 (anterior only a little longer than the acrostichals). fronto-orbital plate grayish to orbital setae; face grayish. Mesonotum brown with small yellow patches at hind corner. Calypter white with margin black; fringe black. Halteres yellow.

Male genitalia ( Fig. 34 to 38). Epandrium with 14 to 17 spines at hind corner; surstylus subtriangular with 3 spines and a row of setae; hypandrium V-shaped, without apodeme; basiphallus subcircular, with two extensions apically, the longer about twice the length of the shorter and with a spherical gap basally; mesophallus enlarged basally; distiphallus forming two sclerotized tubules, slightly up-curving; ejaculatory apodeme short, enlarged apically.

Female genitalia ( Fig. 39 to 43). Ninth abdominal sternite sub-rectangular; four pairs of marginal setae, the central pair longer than others; ninth abdominal tergite ending before the apex of the ninth abdominal sternite, with one pair of long setae apically; cercus elongated with four tactile sensilla apically; spermatheca rounded spermatic duct sclerotized in apex; eggs guide subtriangular; ventral receptacle T-shaped.

Host-plants. unidentified Lamiaceae .

Material examined. BRAZIL, Amazonas, Tefé: 2 ♂, Mamirauá Sustainable Development Reserve, Nova Colombia Community, 2º15’3’’S, 65º40’48’’W, 9.X.91, M.C. Esposito [collector]; 3 ♀, same location, 9.X.91, M.C. Esposito [collector].

Distribution. Guadeloupe, Guyana, Colombia, Brazil (new record).

Remarks. The mesophallus and the distiphallus of this species are slightly wider than in Spencer (1963) description, but we consider that the shape of the aedeagus, especially in the extension of the basiphallus, and the first flagellomere are identical to Calycomyza richardsi . The aedeagus of this species are similar to Calycomyza colombiana Sasakawa , but they can be distinguished by the first flagellomere, that is conspicuously pubescent in C. richardsi , and the number of spines of the epandrium and surstylus.

Figures

FIGURES 34 – 38. Male genitalia of Calycomyza richardsi (Spencer). 34. Male genitalia, ventral view. 3 5. Aedeagus, lateral view. 36. Aedeagus, ventral view. 37. Epandrium, cercus and surstylus, posterior view. 38. Ejaculatory apodeme, ventral view. Scale = 0.1 mm.

FIGURES 39 – 43. Female genitalia and mines of Calycomyza richardsi (Spencer). 39. Ninth abdominal sternite, ventral view. 40. Ninth abdominal tergite, ventral view. 41. Spermatheca, lateral view. 42. Eggs guide, ventral view. 43. Ventral receptacle, ventral view. Scale = 0.1 mm.