Mielkeanthidium dissimile, Parizotto, Daniele R. & Urban, Danúncia, 2011

Parizotto, Daniele R. & Urban, Danúncia, 2011, New resin bee species in the genus Mielkeanthidium Urban (Hymenoptera, Megachilinae), Zootaxa 3139, pp. 55-62 : 59-60

Mielkeanthidium dissimile sp. nov.

(Figs. 2, 3, 11, 15, 19, 22, 25)

Diagnosis. Vertex with coarse, dark brown hairs; pronotal lobe black (Fig. 11, 15); basal half of second tergum densely punctate, punctures separated by half of a puncture diameter (Figs. 15, 25); third to sixth terga densely punctate, punctures separated by less than half of a puncture diameter. Male: sixth and seventh terga with large yellow band, wider medially on the sixth tergum; sixth tergum with median projection short and truncate.

Description. Holotype male.

Color: Integument predominantly black. Head with the following yellow areas: basal half of mandible; apical band on clypeus, wider and angulated at middle; supraclypeal macula W-shaped, angulated near clypeus and expanded laterally until alveoli; lower paraocular area with triangular macula, dorsally concave; postocellar band reaching first third of gena, narrower at middle. Antennae blackened, with scape, pedicel and first two flagellomeres ferruginous (Fig. 2). Mesoscutum black with two basal yellow bands; scutellum with yellow distal median band; and axillae with yellow discal spot (Figs. 11, 22). Tegulae ferruginous; wing membrane mostly infumated brown, darker at base and at costal margin; fore and middle legs with coxae and trochanters black, with distal margin amber; femora predominantly amber with distal half and external surface blackened; tibiae with little external black spotted area; hind leg with coxa and trochanter black, with distal margin amber; femora almost totally black, distally amber; tibia amber with large dark brown spot on external surface; first three tarsomeres amber, the two distal blackened. Terga predominantly black, basal tergum with lateral yellow band, narrower dorsally and separated from one another at middle; second tergum with yellow lateroventral bands; third to fifth terga with discal yellow band, distal half of terga yellowish amber with translucent margin ( Fig. 25 ); sixth and seventh terga with yellow bands wider at middle and with thin translucent margins. First two sterna with narrow translucent margin, second with large yellow lateral macula; remaining sterna brown.

Pilosity: Hairs predominantly yellow, longer than ocellar diameter; little denser at the same areas as in M. albertinoi sp. nov.. Hairs of vertex dark brown, coarse. Third sternum as in M. albertinoi sp. nov..

Punctures: Head and mesosoma densely punctate; metasoma with shallower punctures, sparser than in mesosoma. Punctures of first and second terga sparser and smaller than remaining terga.

Structure: As in M. albertinoi sp. nov.

Measurements (mm): approximate body length 6.50; forewing length 4.80; head width 2.05; eye length 1.36; upper interocular distance 1.49; lower interocular distance 1.02.

Description. Paratype female. (“Parque Estadual de/ Ilha Bella-SP, Brasil / 01/xii/2009 / Col. S. Boff”; “SI480” (CEPANN)).

Differs from male in the following characteristics: Color: Paraocular area with small yellow spot near antennal socket; antennae black with apical third of scape, pedicel and two first flagellomeres ferruginous (Fig. 3); scutellum black. First and second terga with yellow lateroventral bands, smaller on second (Fig. 15). Third to fifth terga as in male. Sixth tergum almost totally yellow with only apical edges black. Legs black, fore and middle tibiae with internal ferruginous areas. Sterna black.

Pilosity and Punctures: As in male except by the less conspicuous pilosity in paraocular area. Scopa light yellow.

Structure: Mandible with four teeth more or less evenly spaced.

Measurements (mm): approximate body length 7.08; forewing length 5.24; head width 2.32; eye length 1.55; upper interorbital distance 1.61; lower interorbital distance 1.21.

Type material. Holotype male. BRAZIL, Santa Catarina: “ Brasil, SC, Pomerode / Testo Alto / 13.XII.2007 / Rafael Kamke leg.”; “ Coniza bonariensis / Asteraceae / Daniel Falkenberg det.” ( DZUP). Paratypes: one male same data as holotype ( DZUP); one male and one female: BRAZIL, São Paulo: “Parque Estadual de/ Ilha Bella-SP, Brasil / 01/xii/2009 / Col. S. Boff”; “SI480” (CEPANN). One male and one female with the same data, except by “SI482” ( DZUP). Two males and one female with the same data, except by “SI484”. One female with the same data, except by “SI485” ( DZUP).

Etymology. From the Latin dissimile (= different) in reference to the number of teeth of the female mandibles of this species.

Variation. The paratype from the type locality, have the basal tergum with complete yellow band; axillae black and the scutellum black with weak yellow distal spot; the head is damaged. All the paratype males from São Paulo have entirely yellow mandibles, one of them (SI 484) have the scutellum entirely black.

Figures

FIGURES 21 – 31. Lateral (21 – 23) and dorsal (24 – 26) views of metasoma of male. 21, 24 M. albertinoi sp. nov.; 22, 25 M. dissimile sp. nov.; 23, 26 M. tucumanum sp. nov. Apex of metasoma (27 – 29) and details of sterna of male (30 – 31), 27, 30 M. rubripes; 28, M. albertinoi sp. nov.; 29, 31 M. tucumanum sp. nov. Scale = 1.0 mm (Figs. 21 – 23). Scale = 0.5 mm (Figs. 24 – 31).