BIOLOGY AND ECOLOGY OF BAT FLIES (DIPTERA, STREBLIDAE) ON BATS IN THE GENUS CAROLLIA
BIOLOGY AND ECOLOGY OF BAT FLIES (DIPTERA, STREBLIDAE) ON BATS IN THE GENUS CAROLLIA
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DOI：
10.1093/jmedent/20.1.1
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发表时间：
1983-01-01
影响因子：
2.1
通讯作者：
FRITZ, GN
中科院分区：
文献类型：
--
作者：
FRITZ, GN
The biology and ecology of bat flies found on C. perspicillata were investigated in Heredia Province, Costa Rica. Only Trichobius joblingi, Speiseria ambigua and Strebla guajiro were found on Carolina. These streblids were absent from 9 spp. of bats in 7 other genera. Although streblids transfer readily among bats in a roost, flies had a clumped distribution on foraging bats. Female bats had significantly higher numbers of flies (3.5 .+-. 3) than did male bats (2.1 .+-. 2). The ratio of female to male flies was 1:1.3, 1:1.4, and 1:1.7 for T. joblingi, Speiseria ambigua, and Strebla guajiro, respectively. Pupiposition occurred between 1730 and 1930 h, coinciding with the time when bats leave their roosts. Pupae eclosed during the morning, providing teneral flies with maximum time for cuticle hardening and host searching. Mean pupal developmental times (in days) for caged T. joblingi, Speiseria ambigua and Strebla guajiro were 17.4 .+-. 1, 19.8 .+-. 0.66 and 18.8 .+-. 0.75, respectively; pupal mortality was 22, 48 and 62%, respectively. T. joblingi pupae monitored in a tree roost had 37% mortality. Streblids fed frequently and voided fecal droplets containing masses of intact red blood cells. When removed from hosts, fly defecation rates dropped to 0 after 1 h. Fed T. joblingi had a mean survivorship off the host of 2.79 U 0.88 h, whereas teneral flies lived significantly longer (4.0 .+-. 0.47 h). Mean survival time off the host for Speiseria ambigua and Strebla guajiro was < 7 h. Streblids copulated on the host, and males would often ride fully parous females. Laboulbeniomycete fungi were found on all 3 bat fly species; thus is the 1st record of them on New World streblids.
