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The Bees of the Genus Neocorynura of Mexico (Hymenoptera: Halictidae: Augochlorini) Folia Entomológica Mexicana, Vol

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The Bees of the Genus Neocorynura of Mexico (Hymenoptera: Halictidae: Augochlorini) Folia Entomológica Mexicana, Vol Folia Entomológica Mexicana ISSN: 0430-8603 [email protected] Sociedad Mexicana de Entomología, A.C. México Smith Pardo, Allan H. The bees of the genus Neocorynura of Mexico (Hymenoptera: Halictidae: Augochlorini) Folia Entomológica Mexicana, vol. 44, núm. 2, 2005, pp. 165-193 Sociedad Mexicana de Entomología, A.C. Xalapa, México Available in: http://www.redalyc.org/articulo.oa?id=42444207 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Folia Entomol. Mex., 44(2): 165-193 (2005) THE BEES OF THE GENUS NEOCORYNURA OF MEXICO (HYMENOPTERA: HALICTIDAE: AUGOCHLORINI) ALLAN H. SMITH-PARDO Division of Entomology, Natural History Museum, and Entomology Program, Department of Ecology and Evolutionary Biology, Snow Hall, 1460 Jayhawk Boulevard, University of Kansas, Lawrence, Kansas 66045-7523, USA. E-mail: [email protected] Smith-Pardo, A. H. 2005. The bees of the genus Neocorynura of Mexico (Hymenoptera: Halictidae: Augochlorini). Folia Entomol. Mex., 44(2): 165-193. ABSTRACT. The species of the bee genus Neocorynura occurring in Mexico are reviewed. Seven species are recognized in Mexico, four of which are described as new: Neocorynura centroamericana, new species; N. cribrita, new species; N. discolorata, new species; and N. rubida, new species. Two new synonyms are proposed: N. chlorocion (Vachal) is a new junior subjective synonym of N. lignys (Vachal) while N. discolor knabiana Cockerell is a new junior subjective synonym of N. discolor (Smith). Descriptions for both sexes of each species are provided along with keys to their identification. The biogeography of Neocorynura in Mexico is briefly discussed. KEYWORDS: Apoidea, Anthophila, biogeography, taxonomy, Halictinae. Smith-Pardo, A. H. 2005. Las abejas del género Neocorynura de México (Hymenoptera: Halictidae: Augochlorini). Folia Entomol. Mex., 44(2): 165-193. RESUMEN. Se presentan las especies de abejas del genero Neocorynura presentes en México. Se reconocen siete especies, de las cuales cuatro especies son nuevas para la ciencia: Neocorynura centroamericana sp. nov., N. cribrita sp. nov., N. discolorata sp. nov., y N. rubida sp. nov. Se proponen dos nuevas sinonimias: Neocorynura chlorocion (Vachal) es una sinonimia junior subjetiva de N. lignys (Vachal), mientras que N. discolor knabiana Cockerell es una sinonimia junior subjetiva de N. discolor (Smith). Se presetan descripciones para ambos sexos de cada especie y claves para su identificación. Se discute brevemente la biogeografía de Neocorynura en México. PALABRAS CLAVE: Apoidea, Anthophila, biogeografía, taxonomía, Halictinae. Neocorynura Schrottky is one of the largest ge- perhaps partially a result of the fact that this is nera in the bee tribe Augochlorini (Halictidae) one of the few bee genera that reach high altitu- with approximately 60 to 65 described species des in the Andes (Gonzalez and Engel, 2004; (Moure and Hurd, 1987; Engel, 2000, Michener, Gonzalez and Smith-Pardo in prep.). 2000), and an equal number of undescribed spe- The bee fauna, and specifically Neocorynura, cies (Smith-Pardo, Unpubl. data). The genus ran- in Mexico and Central America has been studied ges from northern Argentina to central Mexico in some detail, principally in terms of the diver- (Eickwort, 1969; Michener, 2000; Engel, 2000), sity of species (Ayala, Griswold and Bullock, although preliminary data suggest a higher diver- 1993; Ayala, Griswold and Yanega, 1996). Nes- sity of Neocorynura in northern South America, ting behavior of particular species of Neocory- especially Colombia, Ecuador, and Peru. This is nura has been described (Sakagami and Miche- Smith-Pardo: Mexican Neocorynura ner, 1962; Michener, Kerfoot, and Ramirez, County Museum of Natural History (R. R. Sne- 1966), although such studies represent a mere lling); MNHN, Museum National d'Histoire Na- fraction of the diversity in the genus. Currently turelle, Paris (J. Legrand); SEMC, Entomology there exists a checklist for the Mexican species, Division, Natural History Museum, University of but it is based on the distribution records for the Kansas, Lawrence (M. S. Engel, Z. Falin); UCR, species with type localities in Mexico (Ayala, Entomological Museum, University of California, Griswold and Yanega, 1996). A better understan- Riverside, Riverside (D. Yanega); UNAM, Ins- ding of the Neocorynura species occurring in tituto de Biología, Museo de Zoología, Uni- Mexico is important because it represents the versidad Nacional Autonoma de Mexico, Mexico northernmost limit for the genus and because it D.F. (O. Yañez); UNSM, University of Nebraska may provide insights on the reasons for the de- State Museum, Division of Entomology (B. Rat- cline in diversity of species in the subtropical zo- cliffe); ZMHB, Museum für Naturkunde, Hum- ne, far from the area of greatest diversity in South boldt-Universität, Berlin (F. Koch). America. Neocorynura centroamericana sp. nov. MATERIAL AND METHODS (Fig. 1, 2b) Morphological observations, measurements, Diagnosis. Females of Neocorynura centro- and illustrations were made using an ocular mi- americana can be easily recognized by the dis- crometer on an Olympus SZ60 microscope and tinctive color pattern of their body: mainly black the Adobe Illustrator® software. The abbrevia- with narrow metallic bands along mesoscutum tions F, S, T, OD, and PD are used for flagello- and anteriorly and dorsally on T2 and T3. This mere, metasomal sternum and tergum, and ocellar species can be distinguished from other species diameter and puncture diameter, respectively. with similar body coloration such as N. fumi- Morphological terminology follows that propo- pennis (Friese) by the following characters: cly- sed by Michener (2000), Engel (2001), and Ha- peus only imbricate along margins and smooth rris (1979) for surface sculpturing. The word im- between punctures elsewhere; mesoscutum with bricate is used for the microsculpturing of the punctation broadly separate medially, more dense cuticular surface, usually between punctures or toward the margins; mesopleura with coarse other coarser sculpturing. Description format ge- punctures; base of propodeum broadly striate and nerally follows that used for other augochlorine smooth between striae, and metasomal T1 with bees (e.g. Engel, 1999, 2000; Engel and Smith- punctation broadly distributed. Pardo, 2004). Description. FEMALE (Holotype). Body length The specimens used for this study are deposited 13 mm; forewing length 11.5 mm. Head width in the following institutions: AMNH, American 3.5 mm, length 3.3 mm. Scape longer than com- Museum of Natural History, New York (J. G. bined lengths of F1–F6; F2 slightly longer than Rozen, Jr.); BMNH, British Museum of Natural F1. Clypeus wider than long; paraocular lobe ob- History, London (G. Else); CAS, California Aca- tuse (almost absent). Mesoscutum slightly wider demy of Sciences, San Francisco (R. Zuparko); than long; metanotum more than half length of CUIC, Cornell University Collection of Arthro- mesoscutellum. Mesotibial spur serrate and more pods (E. R. Hoebeke); FSCA, Florida State Co- than half length of mesobasitarsus; inner metati- llection of Arthropods, Gainesville (J. Wiley); bial spur pectinate with 6 teeth, the two most dis- INHS, Illinois Natural History Survey, Urbana- tal ones almost completely fused. Marginal cell Champain (C. Favret); LACM, Los Angeles pointed; 1m-cu confluent with 1rs-m; 2m-cu ba- 166 Folia Entomol. Mex., 44(2) (2005) FIGURE 1. Lateral habitus of the new species of Neocorynura (left females, right males): a). N. centroamericana, b). N. cribrita, c). N. discolorata, and d). N. rubida. 167 Smith-Pardo: Mexican Neocorynura sad 2rs-m by approximately 3 times vein width; gin of mesoscutellum. Legs mostly black, tarsi first submarginal cell longer than the combined light brown. Metasoma black with a narrow basal lengths of second and third; second submarginal band, metallic green to blue, on T2 and T3. cell with anterior margin longer than anterior Mandible with brown, unbranched setae, 0.5-3 margin of third marginal cell; hamuli spaced 3-1- OD in length, scattered along mandibular surface. 1-3. Basal area of propodeum slightly shorter Labrum mostly bare with a row of coarse, brown, than mesoscutellum but larger than metanotum, unbranched setae along anterior margin. Clypeus broadly striated. Metasoma elongate, semipetio- with brown and unbranched setae, 0.5- 1.0 OD in late. Wings uniformly pubescent; forewings with length, sparsely distributed over surface and with costal margin smoky. some minute branched setae on lateral margins, Mandible with strong acetabular groove. La- and close to compound eyes. Supraclypeal area brum areolate and with small central process (or- with minute, sparse, dark brown, unbranched biculate elevation of medial region), more or less setae. Subantennal area and frons covered with narrow at base. Clypeus strongly imbricate along two kinds of setae; dark and light brown, darker margins, slightly imbricate elsewhere, with coar- ones minutely branched and 1-1.5 OD in length, se punctures separated by 1 PD; supraclypeal light setae branched but shorter, both kinds area imbricate with punctures similarly distri- mixed dense. Scape with dark brown, unbranched buted; subantennal and lower ocular areas stron- setae, 1 OD in length. Vertex with coarse, sca- gly imbricate; frons
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