Eulaema (Eulaema) quadragintanovem Nemésio & Ferrari, 2012

Nemésio, André & Ferrari, Rafael R., 2012, The species of Eulaema (Eulaema) Lepeletier, 1841 (Hymenoptera: Apidae: Euglossina) from eastern Brazil, with description of Eulaema quadragintanovem sp. n. from the state of Ceará, Zootaxa 3478, pp. 123-132 : 125-128

Eulaema (Eulaema) quadragintanovem Nemésio & Ferrari , sp. n.

Diagnosis. Eulaema quadragintanovem sp. n. can be easily assigned to the subgenus Eulaema due to the absence of yellowish markings on the face and the presence of green metallic hues on the metasoma. It can also be readily distinguished from other Eulaema (Eulaema) occurring in eastern Brazil (see Table 1 ) by the absence of purple hues on T1–T2; subcylindrical mesotibial tufts; stripe of yellow setae on T2–T3 occupying more than half of tergal length; pilosity on T5 reddish, with a thin stripe of yellow setae; yellow setae on T6–T7; distal stripes of yellow setae on S2–S3 not continuous, occupying only one third of the lateral sides of terga; pilosity on S4 reddish; pilosity on S5 short and sparse, without distal stripe of setae; and shape of S6, with three deep depressions, a medial one and two lateral ones. In the Atlantic Forest domain, Eulaema quadragintanovem sp. n. is similar to and can be confused with Eulaema helvola , but they can be distinguished through setae coloration on T4 (entirely fuscous in E. quadragintanovem sp. n.; black on the basal portion and yellow on the distal portion in E. helvola ) and on T5 (reddish, with a thin stripe of yellow setae in E. quadragintanovem sp. n. and yellowish in E. helvola ), besides shape of S6 (see Table 1 ; distal edge of S6 with three depressions). Eulaema quadragintanovem sp. n. can be also confused with the allopatric E. tenuifasciata due to the similar shape of S6, but both species can be distinguished due to metasomal setae coloration and differences in body size (see Table 1 ). Eulaema quadragintanovem sp. n. is one of the smallest species belonging to the subgenus Eulaema , barely reaching 22.0 mm, and the smallest Eulaema (Eulaema) from eastern Brazil.

Type material. HOLOTYPE: male, with the following label data: “Euglossina do Ceará, APA S. Baturité, 26338-77510” and “Guaramiranga, CE, Brasil, 21/01/2010, M. Guimarães” ( UFMG). PARATYPE: “Euglossina do Ceará, ParNa Ubajara” and “Ubajara, CE, Brasil, 25/04/2012, J.E. Santos Jr.” ( UFMG).

Description (male, Figures 2–4 ).

Color and vestiture. Face and head black without metallic hues or yellowish markings on clypeus and malar area ( Figure 3 C), mesosoma black with black setae, T1–T7 black with green hues, no purple hues at all; T1 covered with yellow setae; the proximal 1/3 of T2–T3 covered with black setae, the distal 2/3 portion covered with yellow setae; T4 with mixed black and red setae; T5 covered with mixed black and red setae proximally and a thin stripe of yellow setae distally; T6–T7 covered with yellow setae only ( Figure 2 , 3 A). Wings dark brown basally and pale brown distally.

Species 1 2 3 4 5 6 7 8 9 10 11 12 13 1. Shape of mesotibial tuft: subcylindrical (0), subtriangular (1); 2. Body size: bees smaller than 22.5 mm (0), medium-sized bees, ca. 25.0 mm (1), larger bees, 27.0 mm or more (2); 3. Purple hues on T1-T2: absent (0), present (1); 4. Stripe of yellow setae on T2: occupying more than half of tergal length (0), occupying ca. one third of tergal length (1), occupying, at most, one quarter of tergal length (2); 5. Setae coloration on T5: reddish with a thin distal stripe of yellow setae (0), entirely reddish (1), entirely yellow (2); 6. Setae coloration on T6-T7: yellow (0), reddish (1); 7. Distal stripe of yellow setae on S2-S3: not continuous, occupying only one third of the lateral sides of terga (0), not continuous, interrupted at the median portion (1), continuous (2); 8. Setae coloration on S4: reddish (0), yellow (1); 9. Pilosity on S5: short and sparse, without distal stripe of dense and long setae (0), short and sparse, with distal stripe of dense and very long setae (1), moderately dense and with long setae, with medial glabrous stripe (2); 10. Distal edge of S6: with a strong medial depression (1); with two deep lateral depressions (2); with three deep depressions: a medial one and two lateral ones (3); 11. Shape of S7: long and slightly open arms (0); very long and widely open arms (1); very long and arch-shaped arms (2). 12. Length of gonostylus: basal portion and distal projection moderately wide (0); basal portion moderately wide and distal projection narrow (1); basal portion very wide and distal projection very narrow (2); 13. Lateral projection of S8: absent (0); short and narrow (1); long and narrow (2).

Head. Width 6.45 mm; interorbital distance at level of antennal sockets 3.29 mm; scape 1.86 mm; clypeus with a medial ridge; length of malar area 0.37 mm.

Body. Body length ca. 21.7 mm; anterior wing ca. 19.8 mm; tongue in repose reaching S2; scutellum 6.24-mm wide and 2.18-mm long; abdominal width 9.8 mm.

Legs. Velvet area of mesotibia large and broad, occupying only ca. 2/3 of the tibia, leaving the distal 1/3 of its length with a tiny smooth black area around it; mesotibial tuft small, subcylindrical ( Figure 3 D); metatibia covered with sparse, short appressed black hairs.

Terminalia ( Figure 4 ). S7 with posterior disc margin deeply invaginated medially, bearing a row of scattered setae, “arms” open, arch-shaped; S8 with posterior section rounded on dorsal or ventral view, covered with scattered, minute setae; gonostylus subtriangular laterally, very wide basally and very narrow distally, clothed in dense setae.

Punctation. Clypeus with dense, large and elongated punctures laterally and sparse, small and circular punctures medially; denser, larger and circular punctures on labrum; sparse, very small and circular punctures on frons and mesoscutum; very minute, circular and extremely dense on tegulae; dense, small and circular punctures on T1–T3, larger and elongated on T4–T7; sparse, small and cicular punctures on metatibia.

Female. Unknown.

Etymology. The specific epithet honors the Brazilian soccer player Ronaldo de Assis Moreira, famous worldwide as ‘Ronaldinho’ and in Brazil as ‘Ronaldinho Gaúcho’. ‘Quadraginta novem’ means forty-nine, the number of Ronaldinho’s t-shirt at Clube Atlético Mineiro (CAM), his current team in Brazil. Ronaldinho chose the number 49 as homage to his mother, born in 1949.

Type locality. Holotype collected at the ‘Área de Proteção Ambiental da Serra do Baturité’, municipality of Guaramiranga (04º15’48” S, 38º55’59” W, ca. 870 m a.s.l.), state of Ceará, northeastern Brazil.

Attractive baits. Cineole.

Geographic distribution. Only known from two localities in the state of Ceará, northeastern Brazil: ‘Serra do Baturité’, municipality of Guaramiranga, and ‘Parque Nacional de Ubajara’, municipality of Ubajara. Both areas maintain vegetation typical of ‘brejos de altitude’, the Atlantic Forest of mountain tops in northeastern Brazil.

The number of species now known to belong to Eulaema (Eulaema) in eastern Brazil increased to six. Below we provide an updated identification key for all six species. An identification key to all species of Eulaema belonging to the subgenus Apeulaema from eastern Brazil is available in Nemésio (2010).

Figures

FIGURE 2. Holotype Eulaema quadragintanovem sp. n. Habitus.

FIGURE 3. Holotype Eulaema quadragintanovem sp. n. A: dorsal view of metasoma; B: ventral view of metasoma; C: frontal view of face; D: ventral view of mesotibia.

FIGURE 4. Holotype Eulaema quadragintanovem sp. n. Terminalia. A: dorsal view of sternum VIII; B: ventral view of sternum VIII; C: genital capsule, frontal view; D: genital capsule, lateral view; E: genital capsule, dorsal view.

Tables

TABLE 1. A comparative table of relevant morphological characters for all species of Eulaema s. str. occurring in eastern Brazil, besides the Amazonian E. meriana and E. tenuifasciata (see text for discussion; see below the table for characters list). Characters

Eulaema quadragintanovem sp. n. 0 E. atleticana 1 E. bombiformis 1 E. helvola 0	0 2 2 1	0 0 1 0	0 2 1 2	0 2 1 2	0 0 1 0	0 1 2 0	0 0 0 1	0 1 2 0	3 1 1 2	2 0 1 2	2 1 0 2	0 2 1 0
E. meriana 1	2	1	1	1	1	1	0	1	1	0	1	2
E. niveofasciata 1 E. seabrai 0 E. tenuifasciata 0	2 1 1	1 1 0	1 2 1	1 1 1	1 1 1	2 0 0	0 0 0	2 0 0	1 2 3	1 2 2	0 2 2	1 0 0