Ceratina (Zadontomerus) Ashmead
Creators: name: Flórez-Gómez, Nathalia
name: Ayala, Ricardo
name: Hinojosa-Díaz, Ismael
name: Morrone, Juan J.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Apidae
Ceratina

description: 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.
description: Published as part of Flórez-Gómez, Nathalia, Ayala, Ricardo, Hinojosa-Díaz, Ismael & Morrone, Juan J., 2022, The Neotropical Species Of Small Carpenter Bees Of The Subgenus Ceratina (Zadontomerus) Ashmead, 1899 (Hymenoptera: Apidae), pp. 189-223 in Zootaxa 5214 (2) on pages 221-222, DOI: 10.11646/zootaxa.5214.2.3, http://zenodo.org/record/7384856