Chrysopilus balbii, Santos, Charles Morphy D. & Amorim, Dalton De Souza, 2007

Santos, Charles Morphy D. & Amorim, Dalton De Souza, 2007, Chrysopilus (Diptera: Rhagionidae) from Brazil: redescription of Chrysopilus fascipennis Bromley and description of eleven new species, Zootaxa 1510, pp. 1-33 : 5-6

Chrysopilus balbii sp. n.

Figures 1–9

Material. Holotype ɗ, BRAZIL, State of São Paulo, Salesópolis, Estação Biológica Boracéia, 23º 39’S 45º 44’W, 29/V/1968, Nelson Papavero col. ( MZSP); paratypes: 1 Ψ, State of Rio de Janeiro, Parque Nacional Itatiaia, Fazenda Serra, 22º 20’S 44º 35’W, VIII/1946, Barreto col. ( MZSP); 1 Ψ, State of Rio de Janeiro, Parque Nacional da Tijuca, 22º 55’S- 23º 01’S 43º 12’- 43º 19’W, 24/IX/1958, Cida col. ( MZSP); 1 Ψ, State of Rio de Janeiro, Nova Friburgo, Mury, 22º 10’S 42º 19’W, XII/1965, Gred & Guimarães cols. ( MZSP); 1 Ψ State of São Paulo, Ribeirão Grande, Pq. Est. Intervales, Barra Grande, 24o 12’S – 24o 32’S 48o 03’W – 43o 32’W, 10-13/ XII/2000, M.T. Tavares & eq. cols. ( MZSP); 1 Ψ State of São Paulo, Ubatuba, Parque Estadual da Serra do Mar, 23o 21’ 43’’S 44o 49’22’’W, 24/I/2002, N.W. Perioto & eq. cols. ( MZSP); 2 Ψ, State of São Paulo, Salesópolis, Estação Biológica Boracéia, 23º 39’S 45º 44’W, 18/XI/1964, Rabello col. ( MZSP); 2 Ψ, State of São Paulo, São Vicente, Fazenda Barreiras, 23º 57’S 46º 23’W, I/1945, M. Carrera col. ( MZSP); 1 Ψ, State of São Paulo, São Paulo, Serra da Cantareira (Chapadão), 23º 19’S 46º 35’W, IV-1946, M. P. Barreto col. ( MZSP); 1 Ψ, State of São Paulo, Guarujá, 23º 59’S 46º 15’W, 25-30/I/1941, M. Carrera col. ( MZSP); 2 ɗ, State of São Paulo, Caraguatatuba, 23º 39’S 45º 25’W, II/1946, G. Ramalho col. ( MZSP); 4 Ψ and 2 ɗ, State of Santa Catarina, Nova Teutônia, 27º 11’ S 52º 23’ W, 300-500 m, X/1970 - XII/1972, Fritz Plaumann col. ( MZSP).

Diagnosis. First flagellomere reniform, golden yellow; wing brownish near posterior margin and around crossveins, male cercus golden yellow; female hypogynial valves of sternite VIII with only two long setae.

Male. Body length, 8.8–9.5 mm. Wing length, 6.5–7.0 mm. General color dark brown. Eyes black, homogeneous facets, ocellar tubercle dark gray, ocelli green. Gena and clypeus grayish to brown, clypeus with dark setae. Antenna brown, except for golden yellow first flagellomere; scape bare, as long as pedicel; pedicel oval; first flagellomere reniform, longer than scape ( Figure 2 ). Maxillary palpus long, medially enlarged (Figure 3). Proboscis and labella brownish yellow to brown. Occiput gray, with silvery iridescent setae.

Thorax brown, scutellum lighter, with scarce golden setae. Halter stem dark brown, knob brownish yellow. Legs brown. Wing brownish near posterior margin and around crossveins ( Figure 1 ); pterostigma long, reaching C; R2+3 reaching C close to R1, without distal sinuosity; R4 forking with almost right angle, short appendage on R4 present in some specimens; CuA2 and A1 fusing far from margin; crossvein m-m not far from origin of M2.

Abdomen brownish yellow, yellow stripes on tergites 1–2. Gonocoxite and gonostylus brownish yellow; terminalia wider than long; gonostylus long, rounded distally; aedeagus short; ejaculatory and gonocoxal apodemes long, the former reaching base of terminalia; lateral ejaculatory process wide, projected obliquely (Figure 5); meso-anterior incision of tergite IX short ( Figure 6 ); cercus golden yellow.

Female. Body length, 9.0– 11.7 mm. Wing length, 7.8–10.0 mm. Thorax and abdomen similar to male. Anterior margin of sternite VIII acuminate, hypogynial valves with only two long setae ( Figure 8 ); genital fork (sternite IX) with anterior end strongly acuminate, distal apodeme short ( Figure 9 ); cercus two-segmented, distal segment quite elongated ( Figure 7 ); common spermathecal ducts short, spermathecal ducts long; spermathecae spherical ( Figure 4 ).

Distribution. Chrysopilus balbii sp. n. is widely distributed in southern and southeastern Brazil, occurring from Santa Catarina to Rio de Janeiro. Some females found in Anápolis, State of Goiás, are similar to C. balbii , but these need further examination, since males from that area are not known and the terminalia of these females were not dissected.

Etymology. This species is named after Maria Isabel Protti de Andrade Balbi, biologist of the Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, who has been extremely important for the formation of many dipteran students and researchers.

Figures

FIGURES 1 – 4. Chrysopilus balbii sp. n., male holotype: 1 — Wing, 2 — Antenna, 3 — Maxillary palpus, female paratype: 4 — Spermatheca.

FIGURES 5 – 9. Chrysopilus balbii sp. n., male holotype: 5 — Terminalia, dorsal view, 6 — Terminalia, dorsal view, female paratype: 7 — Terminalia, ventral view, 8 — Sternite VIII, ventral view, 9 — Genital fork (S IX).