Mites in host, Honey bee tracheal mite (Acarapis woodi); A. woodi mites, internal parasites of Apis mellifera (common honey bee), visible in bee. Acarapis woodi: beekeeping: Diseases: is caused by the mite Acarapis woodi that gets into the tracheae of the bee through its breathing holes or spiracles in. Acarapis woodi kills by clogging the breathing tubes of the bees and the normally elastic trachea becomes brittle and stiff, and flight muscles atrophy. The effects.
|Published (Last):||24 January 2015|
|PDF File Size:||17.95 Mb|
|ePub File Size:||7.12 Mb|
|Price:||Free* [*Free Regsitration Required]|
Taxonomy Tarsonemus woodi Rennie, Type species Tarsonemus woodi Rennie, Metapodosomal venter with 2 pairs of setae 3a, 3b 3c, 4b absent Figs. Wcarapis setae between trochanters IV 4b absent Figs.
Solenidion on tibia I present Figs. Cheliceral stylets long, nearly straight, extruding from gnathosomal capsule anteriorly Figs.
Acarapis | Bee Mite ID
Prodorsal trichobothria absent Fig. Claw I present, not enlarged Fig. Ambulacrum I developed Fig. Leg IV stubby, with 5 setae Fig. Tegula distinct, broad Fig.
Prodorsum with 2 pairs of setae v1, sc2 Fig. Femur and genu III fused Fig. Tarsus I with single claw Fig. Seta on trochanter IV present Fig. A dichotomous key is available in Delfinado-Baker and Baker, b.
This genus is associated with honey bees Apis mellifera, Apis cerana, and Apis dorsata. Acarapis woodi Rennie, has been found on all three of these bee species. Acarapis externus Morgenthaler in Morison, has been found on Apis mellifera and Apis cerana, and Acarapis dorsalis Morgenthaler, has been found only on Apis mellifera.
Acarapis woodi mites are usually found in the large tracheal tubes wooddi the mesosoma Figs. Detection of the mites requires dissection of the bees. Development and mating take place in the tracheae and newly mated females migrate from the tracheae of their original host to tracheae in a newly emerged young adult bee. Host-seeking mites attach themselves to bee hairs and then move onto younger bees.
Texas Invasive Species Institute
Clustering of bees wooei the winter greatly facilitates cross-infestation. Mite males are seldom found outside the tracheae. Females lay a single large egg at a time, probably one egg per day during the first two weeks of the host’s life. The egg hatches into an active feeding larva.
Nymphs are pharate, developing inside the larval skin. Adults emerge about 11 days after oviposition. This pattern of development is similar to that of other tarsonemid mites.
Acarapis woodi mites pierce the bee tracheae and air sacs with their chelicerae and feed on the hemolymph, possibly impairing bee respiration.
This lowers the bee’s ability to use wing muscles.
As a consequence, bees cannot keep their cluster warm in winter. Overwintering bees die when crawling out of colonies. In warmer climates, bees will survive, but the mites can pass on harmful viruses. The mite also can weaken drones and queens. Acarapis woodi is responsible for significant colony losses throughout North America. A heavy mite load causes diminished brood area, smaller bee populations, looser winter clusters, increased honey consumption, lower honey yields, and, ultimately, colony demise.
In temperate regions, mite populations increase during winter, when bees are confined to the hive making it easier for mites to move between bee hostsand decrease in summer when bee populations are highest. In subtropical climates, the cycle is similar, even though bees are not so confined after Royce, ; Sammataro et al.
Acarapis woodi | WindowBee™
Two other species, Acarapis dorsalis and A. Permanent associated exclusively with bees or their close relative, wasps; cannot live without these hosts Temporary some life stages are associated with bees, while others are not Facultative or opportunistic can complete entire life cycle without bees or their close relative, wasps.
Acarapis woodi All acagapis live inside the bee tracheal system where they feed on the bee hemolymph. Inseminated females emerge from the tracheae, attach to the host bee hair, and then move onto acarrapis younger bee on contact. On the new bee, mite females enter tracheae and lay eggs.