Tuberculobasis costalimai ( Santos, 1957 ) Santos, 1957

Machado, Angelo B. M., 2009, Denticulobasis and Tuberculobasis, new genera close to Leptobasis, with description of ten new species (Odonata: Coenagrionidae)., Zootaxa 2108, pp. 1-36 : 17

Tuberculobasis costalimai ( Santos, 1957) comb. nov.

Figures 27–28 , 48 , 60–62 , 89 .

Leptobasis costalimai: Santos (1957: 1) ; Davies & Tobin (1984: 7); Bridges (1994: VII.59); Garrison (1991: 13); Tsuda (2000: 38); Costa & Oldrini (2005:8); Lencioni (2006: 155).

Specimens examined: Holotype (3) and Allotype (Ƥ): BRAZIL, Espirito Santo State, Conceição da Barra (18º35´S, 39º45´W), X-1944 (Ribeirão do Engano, a small and shallow river, 4–5 meters wide), N.D. Santos leg. (MNRJ). Paratypes: 20 3, 8 Ƥ same data as holotype. Other specimens: Rio de Janeiro State, São Vicente, flooded area of the São João River, 16-IX-1978, Santos leg.: 29 3, 6 Ƥ; 7-VIII-1980, 20 3, 25 Ƥ, Santos & Mesquita leg. (MNRJ); Minas Gerais State, Rio Doce State Park 11, 13 -XII-1980 (35 3 2 Ƥ), data Pereira & Vulcano leg. (ABMM). Total 104 3, 42 Ƥ.

Distribution. BRAZIL, States of Rio de Janeiro, Minas Gerais, and Espírito Santo.

Remarks. T. costalimai can be easily identified by its large size (abdomen 32–34; HW 19–20), male mesepisternal tubercle adjacent to mid-dorsal carina ( Fig. 27 ), and ventral process of male cercus curved and directed ventro-medially ( Fig. 62 ). The description of male and female by Santos (1957) is adequate, and I provide here new illustrations of cerci ( Figs 60–62 ) and thorax ( Figs 27–28 , 101 a). Santos (1957) stated that female thorax does not have the dorsal prominences described for male. Although considerably smaller than in males, tubercles could be detected in all 20 females I examined including the allotype and eight specimens of the type series. In ten specimens (50 %) tubercles were well-developed, in six (30 %) very small, and in four (20%) poorly-defined. Since in all specimens of the female type series examined by Santos (1957) mesepisternal tubercles could be distinguished it becomes evident that he overlooked these tubercles, certainly much less conspicuous than the "prominences" he had described in the males. In seven females (35%) tubercles were connected with mid-dorsal carina and in 15 (75%) posterior margin of mesostigmal plates curved back and penetrated between tubercle of mesostigmal plate and mesepisternal tubercle ( Fig. 48 ).

Figures

FIGURES 25 – 34. Tuberculobasis, male thorax in dorsal and lateral view in T. arara, holotype (25, 26); T. costalimai, holotype (27, 28); T. guarani, holotype (29, 30); T. inversa, holotype (31, 32); T. williamsoni, holotype (33, 34).

FIGURES 47 – 54. Tuberculobasis female thorax, in dorsal view: T. cardinalis, holotype (47); T. costalimai, allotype (48); T. inversa, Peru, Loreto (49); T. mammilaris, Venezuela (50); T. tirio, allotype (51); T. williamsoni, allotype (52); T. yanomami, paratype (53), and in dorso-lateral view: Tuberculobasis sp. 1, Manaus, Amazonas (54) [47 by N. von Ellenrieder; 50, 53 by J. De Marmels].

FIGURES 57 – 65. Tuberculobasis, male appendages in dorsal, lateral, and posterior view: T. arara, holotype (57 – 59); T. costalimai, paratypes (60 – 62); T. guarani, holotype (64, 65), T. inversa holotype in dorsal (63), dorso-lateral (66), and lateral (68) views. T. inversa, Tefé, Amazonas State, in postero-lateral (68) view [66, 67 by R. W. Garrison].

FIGURES 87 – 94. Penis in lateral and ectal views: D. dunklei, holotype (87); D. garrisoni, holotype (88); T. costalimai, paratype (89); T. geijskesi, holotype (90); T. mammilaris, lectotype (91); T. tirio, paratype (92); T. williamsoni, paratype (93); Leptobasis vacillans, Panamá (94) [91 by R. W. Garrison].