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Ceratina arizonensis Cockerell, 1898
Ceratina arizonensis vanduzeei Cockerell, 1924; Ceratina (Ceratina) arizonensis Cockerell, 1898

Life   Insecta   Hymenoptera   Apoidea   Apidae   Ceratina
Subgenus: Ceratinula

Ceratina arizonensis
Hartmut Wisch · 5
Ceratina arizonensis

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Ceratina arizonensis, side
Hartmut Wisch · 5
Ceratina arizonensis, side
Ceratina arizonensis, face, california, santa barbara ---.. ZS PMax
© Copyright source/photographer · 5
Ceratina arizonensis, face, california, santa barbara ---.. ZS PMax

Ceratina arizonensis, side, california, santa barbara ---.. ZS PMax
© Copyright source/photographer · 5
Ceratina arizonensis, side, california, santa barbara ---.. ZS PMax
Ceratina arizonensis, side, ca, santa barbara ---.. ZS PMax
© Copyright source/photographer · 5
Ceratina arizonensis, side, ca, santa barbara ---.. ZS PMax

Ceratina arizonensis, distributionmap
© Daly, 1973 · 1
Ceratina arizonensis, distributionmap
Ceratina arizonensis, malemetafemoraandmetatrochanters
© Daly, 1973 · 1
Ceratina arizonensis, malemetafemoraandmetatrochanters

Ceratina arizonensis, female, mesopleura
© Daly, 1973 · 1
Ceratina arizonensis, female, mesopleura
Ceratina arizonensis, Arizona Ceratina
© Copyright John Ascher, 2006-2014 · 1
Ceratina arizonensis, Arizona Ceratina
Overview
Reprinted with permission from: Daly, H. V. 1973. Bees of the genus Ceratina in America North of Mexico (Hymenoptera: Apoidea). University of California Publications in Entomology 74: 1-114. The Regents of the University of California. Published by the University of California Press.

Ceratina arizonensis Cockerell, 1898
(Figs. 7a, 8j, 13b, 15, 30e)

Ceratina arizonensis Cockerell, 1898, Can. Entomol., 30:238 (male holotype not located; Arizona, Maricopa Co., Phoenix)
Ceratina arizonensis, Cockerell and Porter, 1899, Ann. Mag. Nat. Hist., (7)4:405 (key)
Ceratina arizonensis, Cockerell, 1901, Can. EntomoL, 33:281 (desc. ♀, geogr., flwr.)
Ceratina arizonensis, Cockerell, 1903, Psyche, 10:77 (geogr.)
Ceratina arizonensis, Smith, 1907, Trans. Am. Entomol. Soc., 33:116 (key, fig.)
Ceratina arizonensis vanduzeei Cockerell, 1924, Proc. Calif. Acad. Sci., (4) 12:543 (female holotype; Mexico, Sonora, Guaymas; Calif. Acad. Sci.) new synonymy
Ceratina arizonensis, Michener, 1936, Am. Mus. Novit. 844:13 (geogr., flwr., fig.)
Ceratina arizonensis, Fullaway, 1953, Proc. Hawaii. Ent. Soc., 15(1): 11,20. (geogr., biol.)
Ceratina arizonensis, Grant and Grant, 1964, Evolution, 18(2): 203, 204 (flwr.)
Ceratina arizonensis, Daly, 1966, Ann. Entomol. Soc. Am., 59 (6):1145 (geogr.)

Female.—Measurements and ratios: wing, 2.4 mm; hamuli, 5 eye, 62.5:75:62.5:52.5, clypeus, 40 x 45:12.5:45; interocellar, 15:25:7:25, Ø 7.5; frontal carina, 40; malar area 0 x 20; inter- alveolar, 20:12.5:27.5:32.5; Ø 8.5; antenna, 22.5:10:7.5:3:3:5; Ø 7.5; subpleural signum, 6 x 2.5. (Arizona, Pinal Co., Superior, Boyce Thompson Arboretum; Univ. Arizona).

Structure: Head rounded in cephalic view; eyes convergent, rounded above and at malar area; frontal carina simple, defined only between alveolae, absent beneath median ocellus; circumantennal area shallowly depressed; preoccipital ridge not carinate; gena unmodified; median portion of hypostomal carina poorly developed, scarcely visible when viewed laterally, when viewed ventrally lateral portion arcuate. Pronotum with transverse carina absent; dorsolateral angle rounded and poorly developed; lateral carina absent; pronotal pit sulciform; scutum with caudal end of admedian line and cephalic end of parapsidal line broadly overlapping on imaginary transverse line; notauli poorly defined caudad; metapleural line indistinct; propodeal angle about 140°, apex of angle broadly rounded; lateral procoxal angle narrowed and truncate; pro- tibia and mesotibia with simple, single apical spines; basitibial plate minute, spiniform, its elevated apex at basal 0.27 of tibial length. Metasoma widest at segments 3—4; tergum 1 with cephalic and dorsal surfaces at about 140° angle when viewed laterally, apex of angle broadly rounded; terga 2—5 with distinct graduli, not constricted; gradulus of tergum 4 terminating laterally beyond and slightly below spiracle at a distance of 3.0 spiracle lengths; posterolateral angle of tergum 4 about 120°, apex of angle rounded; tergum 6 unmodified; gradulus of sternum 2 nearly straight, gradulus of sternum 3 slightly arcuato-emarginate; wax glands half-moon shaped.

Sculpture and vestiture: Head shiny and polished; sparse fine punctures with simple setae on mandible base, laterally on clypeal disc and paraocular area, vertex, and postgenal area; closer in interalveolar and preoccipital area and labral disc. Sides of pronotum finely punctured less than a puncture width apart, impunctate area above pronotal pit; scutal disc shiny, virtually impunctate, fine punctures marginally and as close as a puncture width apart laterally, posteromedially, and on axilla; scutellar disc sparsely punctate, fine punctures becoming closer and less than a puncture width apart laterally and posteriorly; metanotum finely and contiguously punctured throughout; mesopleuron with fine punctures a puncture width apart or more laterally, becoming more widely spaced posteroventrally, setae narrowly plumose, becoming longer posteroventrally; hypoepimeral area impunctate in lower two-thirds; metapleuron virtually impunctate, finely punctured only iii uppermost fourth; propodeal triangle reticulate rugose; angle and sides of propodeum impunctate, coriaceous; sides with sparse appressed, narrowly plumose setae becoming erect laterally. Loose scopa of mostly three-branched setae on outer surface of tibia. Metasomal tergum 1 sparsely punctured apically, coriaceous to polished anteriorly; pregradular areas of terga 2—3 impunctate, terga 4—5 with scattered fine punctures on pregradular area near gradulus; postgradular areas of terga 2—3 with scattered fine punctures apically and laterally, terga 4—5 finely punctured throughout about a puncture width apart, each with a short suberect simple seta; ground of all terga coriaceous; tergum 6 finely punctured throughout slightly less than a puncture width apart and with short, simple setae. Sterna finely punctured, about a puncture width apart; setae simple, fine, suberect; setae of wax glands appressed.

Color: Body black; testaceous on labrum, apex of mandibles; irregularly fuscous on terga, and wax glands. Ivory marks: broad parallel-sided stripe on clypeus abruptly widened at apex, extending almost full length; spot at apex profemur and stripe extending full length of pro- tibia, spots at base of mesotibia and stripe at base metatibia, extending two-thirds length, sclerites and tegula at wing base; and pronotal lobes. Antennae fuscous, lighter beneath; femora and tibiae fuscous-testaceous, tarsi pale testaceous; wing membrane hyaline, venation and tegula testaceous. Body setae pale flavescent.


Male.—Measurements and ratios: wing, 2.45 mm; hamuli, 5—6; eye, 77:75:61:50; clypeus, 45 x 47:12:47; interocellar, 17:20:13:25, 10; frontal carina, 42; malar area, 0 x 22; inter- alveolar, 17:11:22:32, 11; antenna, 22:10:7:2:3:5, Ø 10; subpleural signum, 10 x 1.3. (Scottsdale, Maricopa County, Arizona; Arizona State University).

Structure: Head rounded in cephalic view; eyes moderately convergent below, rounded above, broadly rounded at malar area; frontal earina simple, distinct between alveolae, indistinct and sulciform beneath median ocellus; circumantennal area shallowly depressed; alveolocellar area gently convex; head rounded dorsoposteriorly, without a preoccipital ridge; gena unmodified; median portion of hypostomal earina when viewed laterally scarcely elevated, terminating anteriorly without a tooth, when viewed ventrally lateral portion arcuate. Pronotum without a transverse carina; dorsolateral angle poorly developed rounded; lateral carina absent; pronotal pit sulciform; scutum with all lines obscure, caudal end of admedian line and cephalic end of parapsidal line barely overlapping on imaginary transverse line; metapleural line slightly carinate; propodeal angle about 140, apex of angle broadly rounded, lateral procoxal angle narrowly truncate; protibia and mesotibia with simple, single dorsoapical spines; metatrochanter cylindrical, unmodified; metafemur unmodified, with only a basal ventral patch of long, simple setae. Metasoma widest at segment 4; tergum 1 with anterior and dorsal surfaces continuous when viewed laterally; terga 2—5 with distinct graduli, not constricted; gradulus of tergum 4 terminating laterally beyond and below spiracle at a distance of 1.2 spiracle lengths; posterolateral angle of tergum 4 about 140, apex of angle rounded; tergum 6 unmodified; apical plate broadly emarginate; sternum 6 with one median tooth divided apically and the lateral teeth broad and undefined (resembles fig. 13b). Genitalia presumed to be similar to fig. 30e.

Sculpture and vestiture: Head polished, impunctate and bare except for very sparse, short setae on clypeal disc, gena, and lateral parocular area; sparse, longer setae on mandible, labral disc, interalveolar area, and vertex; fine punctures about a puncture width apart along preoccipital area. Sides of pronotum coriaceous, smooth near pronotal pit; scutal disc polished, virtually impunctate except anteriorly along lines, fine punctures laterally and about a puncture width apart posteriorly and on axilla; scutellar disc punctured finely, becoming less than a puncture width apart laterally and posteriorly; metanotum finely roughened throughout; mesopleuron with flue punctures about a puncture width apart laterally, becoming more widely spaced posteroventrally, long almost simple setae; hypoepimeral area impunctate; metapleuron virtually impunctate; propodeal triangle coriaceous; angle of propodeum impunctate, minutely coriaceous; sides coriaceous with sparse setae. Metasomal tergum 1 virtually impunctate; terga 2—6 with pregradular area virtually impunctate, postgradular punctures fine and irregularly 1—2 puncture widths apart, each with a short suberect simple seta; ground shiny, but minutely roughened on terga 5—6; tergum 7 finely and sparsely punctured with shiny ground, apical plate above with sparse, long, plumose hairs extending beyond plate and convergent medially. Sterna 1—5 finely punctured, about a puncture width apart; setae fine, simple, suberect, located subapically on each sternum.

Color: Head and thorax black; abdomen dark fusco-rufous. Ivory marks: entire clypeus, labrum, and parocular areas up to antennal sockets; broad stripe on all legs beginning at apex of femora and extending to all but last two tarsal segments; profemur with stripe beginning posteroventrally near base; tegula, costal sclerite; pronotal lobes. Antennae light fuscous, pale beneath; legs proximally black; tarsi apically testaceous; wing membrane hyaline, venation testaceous. Body setae nearly white.

Ceratina arizonensis is distinguished from all western species by the small size and polished black cuticle with extensive ivory maculations. The bees are widespread in the southwestern United States (fig. 15) and are most frequently collected in California oakwoods, Chaparral, Coastal sagebrush, Creosote bush-bur sage, and California Steppe (fig. 7a) - It has been introduced accidentally in Oa.hu, Hawaii (Fullaway, 1953).

The holotype male of C. arizonensis has not been definitely located. It was presumably collected by Dr. R. E. Kunze at Phoenix, Arizona, on May 12, 1897, and sent to Cockerell by C. F. Baker. Only one badly damaged male labeled “Arizona, Kunze” has been found. No lectotype will be designated at this time. I have been unable to distinguish C. a. vanduzeei from the typical C. arizonensis.

Sample statistics of a collection at Temecula, Riverside County, California are: female wing lengths, 2.52 ± .016 mm, range 2.20—2.85 mm, n = 83; male wing lengths, 2.46 ± .024 mm, range 2.25—2.75 mm, n = 27. No phenetic subdivisions are apparent within the distribution examined.

Sample statistics of a collection at Temecula, Riverside County, California are: female wing lengths, 2.52 ± .016 mm, range 2.20—2.85 mm, n = 83; male wing lengths, 2.46 ± .024 mm, range 2.25—2.75 mm, n = 27. No phenetic subdivisions are apparent within the distribution examined.

Fig. 15. Distribution of Ceratina arizonenss in western America north of Mexico.

Flowers visited by females, some also visited by males: Antirrhinum nutallianum, Asclepias sp., Baccharis sarothroides, Calochortus venustus, ,Chaenactis sp., Chorizanthe parryi, Cirsium sp., Clarkia sp., Cleomella obtusifolia, Condalia sp., Cressa sp., Croton californicus, Cryptantha sp., C. flaccida, C. intermedia., C. muricata, Encelia farinoa, Ericameria parishii, Eriogonum sp., E. fasciculatum, E. f. var. foliolosum, E. gracile, Eriophyllum confertiflorum, Euphorbia albomarginata, E. pediculifera, Gilia sp., Gutierrezia.s arothrae, Heliotropium. curvassavicum, Heterotheca grandiflora, Larrea divaricata, Malacothrix californica, Mesembryanthemum sp., Nolina microcarpa, Phacelia distans, P. douglasi, Rhus sp., Salvia sp., S. mellifera, Senecio californicus, Sphaeralcea laxa, Tamarix gallica.
Flowers visited by males: Baeria chrysostoma, Brassica sp., Ceanothus sp., C. crassifolius, Eriophyllum lanosum, Euphorbia sp., E. palmeri, Lotus glaber, Lycium fremontii, Prospi.s sp., P. juliflora, Salix lasiolepis, Solanum elaeagnifoliumn, Sphaera1cea sp.


Names
Scientific source:

Supported by

Hosts · map
FamilyScientific name @ source (records)
Asteraceae  Encelia actonii @ BBSL__KWC (1)

Encelia farinosa @ BBSL__KWC (1)

Encelia sp @ BBSL__KWC (3)
Boraginaceae  Cryptantha sp @ BBSL (4)
Epialtidae  Mimulus sp @ BBSL__KWC (1)
Euphorbiaceae  Croton californicus @ UCRC_ENT (1)

Euphorbia albomarginata @ AMNH_BEE (2)

Euphorbia @ AMNH_BEE (1)
Lamiaceae  Salvia multiflora @ AMNH_BEE (1)
Onagraceae  Clarkia cylindrica @ BBSL (1)
Papaveraceae  Eschscholzia californica @ BBSL (1)
Polemoniaceae  Gilia capitata @ BBSL (1)
Polygonaceae  Eriogonum fasciculatum @ AMNH_BEE (2)
Rhamnaceae  Ceanothus crassifolius @ AMNH_BEE (2)
Scrophulariaceae  Mimulus whitneyi @ BBSL (1)
_  Cactaceae @ I_JSA (1)

Withheld @ BBSL__ZION (3); BBSL__YOSE (34); BBSL__PINN (275); BBSL (232)

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Updated: 2019-10-14 03:21:35 gmt
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