DEVELOPMENT OF ALOUATTAMYIA-BAERI (DIPTERA, OESTRIDAE) FROM ILO HOWLER MONKEYS (PRIMATES, CEBIDAE) ON BARRO COLORADO ISLAND, PANAMA

The fecundity and development of larval stages of the cuterebrid bot f ly A, baeri were studied in an unusual host, remotely related to the p rimary host. Third-instar Alouattamyia baeri (Shannon & Greene) remove d from howler monkeys, Alouatta palliata, were allowed to pupate and t hen were cultured under controlled conditions. Eclosion occurred after 37.9 +/- 0.4 (mean +/- SE) (male) and 38.2 +/- 0.4 (female) d at 26 d egrees C. Five-day-old females were mated using a tethered flight tech nique and oviposited on ridged filter paper. The total egg complement was 1,399 +/- 243 (n = 2) eggs per female. Eggs were fully embryonated after incubation for 5 d at 26 degrees C. Eggs hatched when warmed in the palm of the hand. Hatching of eggs from an individual batch was a synchronous. Newly hatched larvae would not penetrate intact skin on a rabbit, Oryctolagus cuniculus L. Lan ae placed near the nares or on t he ocular conjunctiva migrated rapidly From view. Warbles containing l arvae were first observed on infested rabbits 5 d after infestation De velopment of larvae proceeded until day 39 after infestation, when nea rly mature 3rd instars were observed. None of the larvae survived to p upate.