Sennertia sodalis, phoretic deutonymph (holotype), ex Ceratina sp., Mexico, BMOC 03-1008-055
Fig. 1. Sennertia sodalis, phoretic deutonymph (holotype), ex Ceratina sp., Mexico, BMOC 03-1008-055 Click to enlarge

Bee Mites : Acari : Acariformes : Sarcoptiformes : Chaetodactylidae : Sennertia : Sennertia species

Sennertia sodalis Klimov and OConnor, 2008

Sennertia sodalis Klimov and OConnor, 2008: 156, Figs 76-77

Material (show database records). Holotype: HDN - MEXICO: Veracruz, San Juan de la Punta, ex Ceratina sp. (propodeum), 18 Jul 1941, H. S. Dybas, BMOC 03-1008-055, FMNH. Paratypes: 3 HDNs - same data as holotype; 4 HDNs - Oaxaca, 5 mi E Temascal, on Acacia cornigera (Fabales: Fabaceae), ex Ceratina sp. (propodeum), 6 Sep 1964, D. H. Janzen, CAS BMOC 03-0604-020; 7 HDNs - San Luis Potosí, Tamazunchale, on Cucurbita ?mixta (Violales: Cucurbitaceae), ex Ceratina sp. (propodeum), 26 Jul 1964, H. V. Daly, CAS BMOC 03-0604-021; 4 HDNs - Yucatán, Ruinas Chichén-Itzá, ex Ceratina sp. propodeum, no date, E. Thompson, FMNH BMOC 03-1008-053; 9 HDNs - same data, FMNH BMOC 03-1008-054; 2 HDNs - COSTA RICA: Alajuela, La Garita, ex Ceratina sp. (propodeum), 29 Jun 1971, A. Avila, CUIC BMOC 80-0722-001; 5 HDNs - Guanacaste, Finca Montezuma, 3 km SE Rio Naranjo, ex Ceratina eximia propodeum, 1 Apr 1992, F. Parker, USNM BMOC 96-0510-229; 5 HDNs - same data, 5 Apr 1992, USNM BMOC 96-0510-232; PANAMA: Panamá, Pueblo Nuevo, ex Ceratina eximia (propodeum+metasoma), 13 Mar 1945, C. D. Michener, BMOC 04-0508-280 AMNH. Holotype in FMNH, paratypes in AMNH, CAS, CUIC, FMNH, UMMZ, UNAM, USNM.
Description. Phoretic deutonymph. Gnathosomal solenidia shorter than 1/3 of femur I width, distinctly shorter than half of setae vi. Supracoxal setae scx situated on dorsal extension of posterior apodeme I. Hysterosomal shield distinctly expanded beyond lateral gland opening and bases of setae f2. Lateral edges of hysterosomal shield in anterior part not narrowing. Dorsal hysterosomal pouch absent. Distance between anterior margin of hysterosomal shield and setae si exceeds diameter of si bases. Striate pattern of idiosomal cuticle outside hysterosomal shield formed by long striae, with sclerotization, sclerotization shifted to posterior striae. 5-7 lines between setae se and si.. Distinct rudiments of vi absent. Setae si distinctly posterior se; exceed 1/2 of se, almost as thick as se. Diameter of si exceeds 1/2 of diameter of se. Setae c1 and d1-h1 uniform in length, microsetae. Setae c1 microsetae; situated posterior to anterior margin of hysterosomal shield. Setae c3 nearly spiniform, situated on soft cuticle. Setae d1 and e1 nearly uniform in length with h1. Setae d1 situated on hysterosomal shield. Sclerite between ia and d2 absent. Setae e2 subequal with d2, not touching hysterosomal shield. Lateral gland openings situated on hysterosomal shield. Setae 4b filiform. Setae 4b, g, and 4a without distinct rhomb-like widening, filiform. Setae 4b, pR I-II, sR III, wF IV, gT I-II, hT I-II, kT III, ra I-II, and wa I-II filiform. Posterior apodemes II and anterior apodemes III free. Anterior apodemes IV not interrupted, almost straight. Posterior apodeme IV present, connected to anterior apodeme III. Additional posterior sclerite of posterior apodeme IV absent. Conoids ps2 anterior to anterior transverse level of central suckers (ad1+2); anterior to ps1, situated outside outer level of ad1+2. Transparent margin of anterior suckers (ad3) without rough sclerotization. Suckers ad3 not enlarged, smaller than central suckers. Posterior and lateral borders of attachment organ not forming distinct frame. Sclerotized rudiment of anterior cuticular suckers present. Longitudinal hysterosomal sclerite present, long. Ventral hysterosoma smooth. Genual setae mG I-II bifid at tips, mG II shorter than femur II. Tarsal setae la I-II longer than famulus ε. Tarsal setae ra I-II not bifid, filiform. Tarsal setae wa I-II and s III filiform, needle-like, or widened basally but with attenuated end. Tarsal setae d I-II foliate. Tarsal setae d and f I-II almost symmetrical, d and f I not touching. Solenidion ω3 closer to f I than to ω1. Posterior condylophore present. Anterior condylophore I-II with distal bending. Seta d III situated shifted from tarsal base, distance distinctly exceeding diameter of d III alveolus. Leg IV not protruding posterior edge of hysterosoma. Tarsus IV not enlarged, shorter or less than 2 times longer than width of trochanter IV. Setae w IV thinner than d IV and distinctly shorter than leg IV, situated on middle of tarsus IV. Setae s IV present. Setae wF IV not protruding genu IV.
Other instars unknown.
Hosts. Ceratina sp. , Ceratina (Calloceratina) eximia (Apidae).
Distribution (Show map). Mexico: Oaxaca, San Luis Potosí, Veracruz (type locality), Yucatán; Costa Rica, Panama.
Etymology. Sodalis (=companious, friendly) is a Latin adjective.


Klimov, P. B. & B. M. OConnor. 2008. Morphology, evolution, and host associations of bee-associated mites of the family Chaetodactylidae (Acari: Astigmata), with a monographic revision of North American taxa. Miscellaneous Publications Museum of Zoology University of Michigan.199: 1-243.

Image Gallery
Sennertia sodalis, phoretic deutonymph, ex Ceratina sp., Mexico, BMOC 03-1008-055
mite (holotype)
Phoretic deutonymphs of the mite Sennertia sodalis dispersing on the propodeum of the samll carpenter bee, Ceratina eximia, Cost Rica, BMOC-96-0510-229
mites on host
Phoretic deutonymphs of the mite Sennertia sodalis dispersing on the propodeum of the samll carpenter bee, Ceratina eximia, Cost Rica, BMOC-96-0510-229
mites on host



B. OConnor and P. Klimov ©
Created: May 26, 2011
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