The Neotropical Species Of Small Carpenter Bees Of The Subgenus Ceratina (Zadontomerus) Ashmead, 1899 (Hymenoptera: Apidae) Author Flórez-Gómez, Nathalia Author Ayala, Ricardo 0000-0002-7718-1853 rayala@ib.unam.mx Author Hinojosa-Díaz, Ismael Author Morrone, Juan J. 0000-0001-5566-1189 morrone@ciencias.unam.mx text Zootaxa 2022 2022-12-01 5214 2 189 223 journal article 198861 10.11646/zootaxa.5214.2.3 91d06dd7-1d57-4442-8fb2-1a6e3fc1c295 1175-5326 7384856 D982762A-A869-4375-9803-13A74D71335D Key to the Neotropical species of Ceratina ( Zadontomerus ) Females 1. Pronotal lobe with yellow mark......................................................................... 2 - Pronotal lobe without yellow mark, same color as the rest of mesosoma.......................................... 5 2. Anterior tibia with a longitudinal yellow mark, scutum disc almost entirely impunctate (Fig x). C. nautlana Cockerell, 1897 - Anterior tibia with yellow spot at the base, scutum disc with punctures along the medial line.......................... 3 3. Preoccipital carina well pronounced, foveate and forming a strong depression; total length no greater than 6 mm .................................................................................................. C. kopili sp. n. - Preoccipital carina foveate, not forming a strong depression; total length from 6.5–9 mm ............................ 4 4. Gena impunctate, polished area adjacent to eye broad, 1/3 genal width; disc of scutum with sparse, fine punctures along the median line, separated by a distance up to 5 times a puncture diameter; wings subhyaline.............. C. basaltica sp. n. - Gena impunctate, polished area adjacent to eye narrow, gena punctures covering almost all surface; disc of scutum with coarse punctures dispersed along median line, separated by a distance up to 3 times a puncture diameter ( Fig. 21C ); wings moderately dark brownish.......................................................................... C. rehanae sp. n. 5. Clypeus yellow mark small and narrow (length 3 times middle width) or absent................................... 6 - Clypeus with oval and wide yellow mark (length up to 2.5 times middle width).................................... 7 6. Propodeal triangle striate throughout, with conspicuous lateral striae; body green olivaceous with metallic tints; clypeus with narrow yellow mark, T4 posterior margin with thick and long hairs ( Fig 15E )...................... C. raquelitae sp. n. - Propodeal triangle polished with single medial stria; body dark metallic blue, sometimes dark green; clypeus with or without reduced yellow mark; T4 posterior margin with thin hairs, scarce thick hairs........................ C. sapphira sp. n. 7. Stigma yellowish or light brown; posterior margin of T4, T5 and T6 with dense yellowish pubescence; olive green propodeum contrasting with black scutum and scutellum........................................... C. capitosa Smith, 1879 - Stigma brown to dark brown; posterior margin of T4, T5 and T6 with dispersed pubescence; mesosoma entirely green olivaceous or blue............................................................................................ 8 8. Head and mesosoma metallic blue, metasoma green or copper with metallic tints; vertex with short and sparse pubescence.. ................................................................................................... 9 - Head, mesosoma and metasoma green olivaceous with metallic tints; vertex with long, yellowish and scattered pubescence....................................................................................... C. tepetlana sp. n. 9. Metasoma length about twice or more the width; total length from 7.0 to 9.0 mm............... C. ignara Cresson, 1878 - Metasoma short, length less than twice the width; total length from 5.5 to 7.0 mm................. C. indigovirens sp. n. Males 1. Pronotal lobe with yellow mark......................................................................... 2 - Pronotal lobe without a yellow mark, same color as the rest of mesosoma........................................ 5 2. T7 with two laminar projections forming a middle notch, slightly evident in some specimens ( Fig. 22 C-D); anterior tibia with longitudinal yellow mark......................................................... C. nautlana Cockerell, 1897 - T7 with posterior margin concave, forming a medial narrowly rounded projection ( Fig. 22E, F, J ); anterior tibia with a yellow spot at the base....................................................................................... 3 3. Preoccipital carina well pronounced, foveate and beginning in the upper third of occiput, forming strong depression ( Fig 7E ); hind femur with strong ventral dilation forming an angle as in Figure 21D ; total length from 4.0– 5.5 mm .... C. kopili sp. n. - Preoccipital carina foveate not forming strong depression; hind femur with strong ventral dilation forming an angle as in Figures 21E, 21I ; total length from 6.0–8.0 mm............................................................. 4 4. T6 with swollen area strongly evident under a yellowish tuft of pubescence; wings subhyaline; hind trochanter ventrally rounded; hind femur with ventral dilation forming an angle as in the figure 21E..................... C. basaltica sp. n. - T6 surface without swollen area, middle area with a yellowish tuft of pubescence; wings brownish, marginal cell darker than the rest of the forewing; hind trochanter ventral surface forming a right angle; hind femur with ventral dilation forming an angle ( Fig. 21I ).............................................................................. C. rehanae sp. n. 5. Lower paraocular area with yellow marks; T7 with concave lateral margins, distal margin truncate ( Fig. 22B ).......................................................................................... … C. ignara Cresson, 1878 - Lower paraocular area without yellow marks; T7 with two posterior projections forming middle notch or with concave lateral margins forming a medial projection …................................................................... 6 6. T7 with two posterior projections forming middle notch ….................................................... 7 - T7 with concave lateral margins forming medial projection..................................................… 8 7. Head and mesosoma metallic blue, metasoma metallic green; hind femur with strong rounded ventral dilation ( Fig. 21J ); outer margin of gonocoxite rounded ( Fig. 20 ) …................................................ C. indigovirens sp. n. - Body entirely dark metallic green; hind femur with ventral slight dilation round shaped ( Fig. 21H ); outer margin of gonocoxite apex forming an acute angle ( Fig. 16 ) ….................................................... C. raquelitae sp. n. 8. Clypeus with transversal yellow mark in the lower area; propodeal triangle polished, with a middle stria; body entirely metallic dark blue (dark green in some cases) …...................................................... C. sapphira sp. n. - Clypeus with T-shaped yellow mark; propodeal triangle striate; body entirely olivaceous green or head and metasoma black and mesosoma olivaceous green ….......................................................................... 9 9. Stigma light brown; hind trochanter and femur with scarce pubescence ( Fig. 21A ); head and mesosoma except propodeum black with metallic tints, propodeum and metasoma olivaceous green (…)...................... C. capitosa Smith, 1879 - Stigma dark brown; hind trochanter with dense long pubescence; hind femur basal half with disperse long pubescence ( Fig. 21F ); body entirely olivaceous green (…).................................................... C. tepetlana sp. n.