New genera of meliturguline bees from Saudi Arabia and Persia, with notes on related genera and a key to the Arabian fauna (Hymenoptera: Andrenidae) Author Engel, Michael S. https://orcid.org/0000-0003-3067-077X Division of Entomology, Natural History Museum, 1501 Crestline Drive - Suite 140, University of Kansas, Lawrence, Kansas 66045 - 4415, USA & Department of Ecology & Evolutionary Biology, University of Kansas, Lawrence, Kansas 66045, USA msengel@ku.edu Author Alqarni, Abdulaziz S. https://orcid.org/0000-0003-1324-332X Division of Invertebrate Zoology, American Museum of Natural History, Central Park West at 79 th Street, New York, New York 10024 - 5192, USA Author Shebl, Mohamed A. Department of Plant Protection, College of Food and Agriculture Sciences, King Saud University, P. O. Box 2460, Riyadh 11451, Saudi Arabia Author Thomas, Jennifer C. Division of Entomology, Natural History Museum, 1501 Crestline Drive - Suite 140, University of Kansas, Lawrence, Kansas 66045 - 4415, USA text Journal of Hymenoptera Research 2019 2019-04-30 69 1 21 http://dx.doi.org/10.3897/jhr.69.32561 journal article http://dx.doi.org/10.3897/jhr.69.32561 1314-2607-69-1 5B2D3ED0DDC543A48564AB18373F1F9B 101FFF853C43455BFFFCFFF2361CFFC6 2673103 Genus Flavomeliturgula Patiny Diagnosis. The genus can be generally differentiated from other members of the subtribe by the following combination of features: small to medium-sized bees, 5.0-10.0 mm in length; integument dark brown to brown with extensive yellow markings (Figs 22 , 23 ); outer subantennal sulcus straight (Fig. 7 ); clypeus weakly protuberant, extending in front of compound eye by about 0.35-0.5 x compound eye width (Fig. 10 ); labrum wider than long, width 1.5 x length, without lateral oval windows of transparent integument, surface with weakly raised, medial plateau, basilaterally with prominent setose patches composed of long (1.8-2.4 x median ocellar diameter), sub-decumbent setae; prementum ventrally without elongate setae; proximal labial palpomere elongate (but not extending past apex of paraglossa: in Belliturgula palpomere extends well past apex of paraglossa), flattened, about as long as to slightly longer than combined lengths of remaining palpomeres; second and third palpomeres flattened and elongate, together slightly shorter than to about as long as first palpomere, fourth palpomere short, shorter than preceding palpomere, cylindrical combined (Fig. 14 ); glossa greatly elongate, longer than head length, apex broadly truncate and broadened (Figs 7 , 10 , 11 ); mesoscutum without appressed, squamose setae or abundant spicate setae (Fig. 22 ); forewing with 1rs-m distad 1m -cu (confluent in Belliturgula ); probasitarsus elongate, slender, length approximately 4 x width; mesotibial spur elongate, nearly 0.75 x as long as mesobasitarsus; pretarsal claws simple; metasomal terga without distinctive broad setal bands; pygidial plate apically acutely rounded, with lateral margins tapering evenly toward apex, surface with mediolongitudinal ridge (Fig. 26 ). Figures 12-15. Labial palpi of representative species (to same scale) and labiomaxillary complex of Khuzimelissa deserta (Warncke), comb. n. (not to same scale), all in ventral view. 12 Labial palpus of Belliturgula najdica Engel, gen. et sp. n. 13 labial palpus of K. deserta 14 labial palpus of Flavomeliturgula (Flavomeliturgula) lacrymosa (Popov) 15 photograph of labiomaxillary complex of K. deserta .