bluuebunny/crossref_metadata_2025_split huggingface dataset:
NEW AUSTRALIAN SPECIES AND RECORDS OF THE PROMONTORII GROUP OF THE GENUS BEMBIX F. (HYMENOPTERA: SPHECIDAE: NYSSONINAE)
Authors: Evans Howard E. 
Published: April 2007

AbstractBembix eucla sp.n. and B. tangadee sp.n., belonging to the promontorii group, are described from Western Australia. Brief notes are presented on two other species of this group, B. buntor Evans and Matthews and B. goyarra Evans and Matthews. A key is presented to the males of the 12 species known from that sex.
IMMATURE STAGES AND LIFE HISTORY OF ENYTUS SP. (HYMENOPTERA: ICHNEUMONIDAE), A PARASITOID OF PERTHIDA GLYPHOPA COMMON (LEPIDOPTERA: INCURVARIIDAE)
Authors: Mazanec Z. 
Published: April 2007

AbstractThe egg, 3 larval instars and pupa of Enytus sp. a univoltine, primary endoparasitoid on the feeding larva of the jarrah leafminer Perthida glyphopa Common, are figured and its life history described. Single eggs laid in July and August hatch rapidly, but the caudate larva develops slowly, allowing the host to complete feeding, construct its cell and aestivate in the soil. The parasitoid's final instar larva destroys the host in March, April or May of the following year, spins a cocoon and pupates in the cell where ecdysis occurs. The species was found most frequently in areas of low host density.
EFFECT OF TEMPERATURE ON EGG DEVELOPMENT IN COPRIS HISPANUS L. AND BUBAS BISON (L.) (COLEOPTERA: SCARABAEIDAE)1
Authors: Kirk A. A. , Kirk G. 
Published: April 2007

AbstractDevelopmental thresholds of 7.2 and 11.1°C are reported for the eggs of the Mediterranean dung beetles Bubas bison and Copris hispanus respectively. Total day‐degrees for egg development were 169 and 117 respectively. Mortality of B. bison eggs was negligible up to 20°C, 50% at 25°C and 100% at 30°C. C. hispanus egg mortality was 45% from 15–30°C. B. bison oviposits throughout the cool mediterranean winter‐spring period and C. hispanus during the hot early summer period. Their eggs are well adapted to those conditions.
TOXICITY OF THREE AVERMECTINS TO INSECTICIDE SUSCEPTIBLE AND RESISTANT LARVAE OF LUCILIA CUPRINA (WIEDEMANN) (DIPTERA: CALLIPHORIDAE)
Authors: Hughes P. B. , Levot G. W. 
Published: April 2007

AbstractThe toxicity of 3 avermectins–ivermectin, abamectin and 4‐deoxy‐4‐epi (methyl amino) avermectin B1–to larvae of the sheep blowfly, Lucilia cuprina, was determined by in vitro bioassay. Mean LC50 values for the susceptible reference strain were between 0.0021 mg/L and 0.0028 mg/L for the 3 compounds. Similar values were obtained for 11 field populations. The organophosphorus/carbamate resistant strain had mean LC50 values between 0.0029 mg/L and 0.0067 mg/L. Despite this small difference between strains, the potency of the avermectins against both susceptible and OP/carbamate resistant larvae demonstrates their potential as insecticides for the control of flystrike.
THE IMMATURE STAGES AND BIOLOGY OF CHRYSONOTOMYIA SP.A (HYMENOPTERA: EULOPHIDAE), A PARASITOID OF PERTHIDA GLYPHOPA COMMON (LEPIDOPTERA: INCURVARIIDAE)
Authors: Mazanec Z. 
Published: April 2007

AbstractBiology of the polyphagous, multivoltine Chrysonotomyia sp.A, an internal parasitoid of the jarrah leafminer, Perthida glyphopa, is described and morphology of the egg, 3 larval instars and pupa figured. Most frequently the female parasitoid deposits a single egg into a non‐feeding larva at the end of instar 2 or a feeding larva of instar 3. The parasitoid egg and larva develop in the liquefied contents of the host and the pupa forms within the host's mine. In the laboratory, incubation of the egg and the development of the larva required approximately 6.5 d and the completion of the pupal stage an additional 32 d. In 1986 only 3.0% larvae were parasitised at a site where the leafminer was abundant and 17.0 and 23.3% at 2 other sites where densities were low. Parasitism was inversely correlated with host density and positively correlated with the mean weekly temperature.
THE IMMATURE STAGES AND LIFE HISTORY OF DIAULOMORPHA SP. (HYMENOPTERA: EULOPHIDAE), A PARASITOID OF PERTHIDA GLYPHOPA COMMON (LEPIDOPTERA: INCURVARIIDAE)
Authors: Mazanec Z. 
Published: April 2007

AbstractThe immature stages of the multivoltine, polyphagous, solitary or gregarious Diaulomorpha sp., an external parasitoid on larvae of the jarrah leafminer Perthida glyphopa, are figured and the life history described. Adult females seek out third and fourth instar host larvae feeding in mines, but prefer those of the least abundant and less active stage preparing to moult at the end of instar 3. The host is stabbed, an egg laid in the mine, and after hatching the parasitoid larva feeds on the dead leafminer. Duration of the life cycle in the field, strongly influenced by temperature, is approximately 30 days. In 1986 the parasitoid caused mortality to 5.3% of the feeding larvae at a site of high leafminer population density and 9.9% at another where the leafminer was scarce. Parasitism was inversely correlated with host density and positively correlated with mean weekly temperature.
KEYS TO THE IMMATURE STAGES OF SOME AUSTRALIAN CERATOPOGONIDAE (DIPTERA)
Authors: Elson‐Harris M. M. 
Published: April 2007

AbstractKeys to subfamilies of the fourth‐instar larva and pupa of some Australian Ceratopogonidae are provided. Keys for the Ceratopogoninae are extended to include 12 genera of fourth‐instar larvae and 15 genera of pupae.
A SECOND AUSTRALIAN SPECIES OF PHERBELLIA ROBINEAUDESVOIDY (DIPTERA: SCIOMYZIDAE)1
Authors: Knutson L. , Manguin S. , Orth R. E. 
Published: April 2007

AbstractPherbellia juxtajavana sp.n. is described. It is closely related to P. javana (de Meijere). The male and female terminalia and wings of both species are illustrated and their distributions are mapped. A character not previously used in the classification of Sciomyzidae, the vaginal apodeme, is described and illustrated. A key to the genera of Sciomyzidae in Australia is included.
MORPHOMETRIC ANALYSIS OF VARIATION IN NALA LIVIDIPES (DUFOUR) AND LABIDURA TRUNCATA KIRBY (DERMAPTERA: LABIDURIDAE)
Authors: Simpson G. B. , Mayer D. G. 
Published: April 2007

AbstractTwo male morphs occur in populations of Nala lividipes (Dufour), the black field earwig, and of Labidura truncata Kirby, the common brown earwig, distinguished by the presence or absence of a tooth at the mid‐point on each forceps branch. Multivariate morphometric analyses using discriminant function analysis applied to measurements of various body parts of wild‐caught specimens showed that the morphs were statistically separate in both species. In each species female size is intermediate to that of the 2 male morphs. The results are discussed on the basis of natural selection, and possible reasons given for the maintenance of 2 male morphs but only 1 female morph.
ANOPHELES ANNULIPES WALKER (DIPTERA: CULICIDAE) AT GRIFFITH, NEW SOUTH WALES. 1. TWO SIBLING SPECIES IN SYMPATRY
Authors: Foley D. H. , Bryan J. H. 
Published: April 2007

AbstractThe existence of 2 sibling species of An. annulipes at Griffith, NSW is confirmed. The 2 species have been designated as species A and species G. In laboratory produced hybrids, the larval polytene chromosomes are largely asynaptic. The 2 species differ at the malic enzyme and the α‐glycerophosphate dehydrogenase loci. No hybrid chromosomes were detected in the offspring of 103 wild‐caught females from an area of sympatry and 98.5% of 6630 specimens from the same area were identified as either species A or species G by electrophoresis.
ANOPHELES ANNULIPES WALKER (DIPTERA: CULICIDAE) AT GRIFFITH, NEW SOUTH WALES. 3. DISPERSAL OF TWO SIBLING SPECIES
Authors: Bryan J. H. , Foley D. H. , Geary M. , Carven C. T. J. 
Published: April 2007

AbstractIn a dispersal study, the time between release and recapture and rate of movement was similar in the sibling species Anopheles annulipes species A and species G. The weighted mean distance travelled was 1.2 km for species A and 1.3 km for species G. Various wing measurements were not correlated with flight performance. The maximum recorded flight was 5 km for species A and 1.5 km for species G.
REVISION OF THE AUSTRALASIAN GENUS POECILOHETAERUS HENDEL (DIPTERA: LAUXANIIDAE)
Authors: Schneider Margaret A. 
Published: April 2007

Abstract Poecilohetaerus Hendel is redefined and includes 14 species, 9 of them new: aquilus, balius, castaneus, convergens, incomptus, leucopus, nigrifrons, pinnatus and xanthopus. P. schineri Hendel and P. albolineatus Hendel are redescribed and diagnostic and distributional notes are given for P. punctatifacies Tonnoir and Malloch, P. ravus Schneider and McAlpine and P. trivittatus Schneider and McAlpine. A key to species is provided. The biology, collection localities and geographic distribution of the species are discussed.
THE EARLY STAGES OF GASTRIDIOTA ADOXIMA (TURNER) (LEPIDOPTERA: BOMBYCOIDEA) AND ITS FAMILY PLACEMENT
Authors: Common I. F. B. , Edwards E. D. 
Published: April 2007

AbstractThe monotypic genus Gastridiota Turner is transferred from the Eupterotidae to the Bombycidae. The immature stages of G. adoxima (Turner), here described and figured, provide characters in addition to those of wing venation, which support the transfer. The characters include the presence in the final instar larva of minute scattered secondary setae, paired extensible filaments on some abdominal segments and a dorsal horn on abdominal segment 8. The food plant family, Moraceae, is shared with many other Bombycidae. The native species of Bombycidae in Australia are briefly discussed.
APHIDS ASSOCIATED WITH DAMAGE TO BANANA PLANTS AND A CORRECTED IDENTITY FOR A BANANA MOSAIC VIRUS VECTOR (HEMIPTERA: APHIDIDAE)
Authors: HUGHES M. A. , EASTOP V. F. 
Published: April 2007

AbstractAn unusual observation of Rhopalosiphum rufiabdominalis (Sasaki) causing damage to a banana plant in a glasshouse is reported. The association of 3 other Rhopalosiphum spp. with damage to bananas is noted, including a name correction for an aphid reported by Magee (1940) as a vector of banana mosaic virus.
ESTABLISHMENT OF ACANTHOSCELIDES QUADRIDENTATUS (SCHAEFFER) AND A. PUNICEUS JOHNSON (COLEOPTERA: BRUCHIDAE) ON MIMOSA PIGRA IN NORTHERN AUSTRALIA
Authors: WILSON C. G. , FLANAGAN G. J. 
Published: April 2007

AbstractThe Mexican seed‐feeding bruchids Acanthoscelides quadridentatus (Schaeffer) and A. puniceus Johnson were released at 32 sites, in 6 Mimosa pigra L. infestations in the Northern Territory between 13 April 1983 and 3 December 1985. Both species established but their impact on M. pigra populations has been negligible. Field collections over a 6 year period showed that 0.8% of M. pigra seeds were destroyed by the bruchids, and that 97.8% of bruchids recovered were A. puniceus.
MYRMECIA CROSLANDI SP.N., A KARYOLOGICALLY REMARKABLE NEW AUSTRALIAN JACK‐JUMPER ANT (HYMENOPTERA: FORMICIDAE: MYRMECIINAE)
Authors: TAYLOR ROBERT W. 
Published: April 2007

Abstract Myrmecia croslandi sp.n. from southeastern mainland Australia, formerly referred to as Myrmecia (pilosula) n = 1, is one of several sibling species related to M. pilosula Fr. Smith. It has the chromosome numbers n = 1 or 2; 2n = 2, 3 or 4.
EFFECT OF TEMPERATURE ON DEVELOPMENT, SURVIVAL, LONGEVITY AND FECUNDITY OF TRISSOLCUS OENONE DODD (HYMENOPTERA: SCELIONIDAE)
Authors: JAMES DAVID G. , WARREN GLEN N. 
Published: April 2007

AbstractThe effect of temperature on the rate of development of Trissolcus oenone was determined by rearing individuals on eggs of Biprorulus bibax Breddin under a range of constant temperatures (12.5–5.0°C). Rates of development changed in a linear fashion over a wide range of temperatures. The lower developmental threshold was estimated to be 12.4°C and an estimated 165.5 degree‐days were required for egg‐adult development. Survival of developing parasitoids ranged between 60–90% at most temperatures. Wasps produced progeny at all temperatures between 15–35°C and total production of offspring ranged from 55.9–163.1. Greatest fecundity occurred at 17.5, 22.5 and 25°C. Longevity did not differ between virgin and mated females and was greatest at 17.5°C (46.7 d) and least at 32.5°C (11.7 d).
REVISION OF THE AUSTRALIAN TROPIDOCEPHALINI (HEMIPTERA: DELPHACIDAE: DELPHACINAE)
Authors: DONALDSON J. F. 
Published: April 2007

AbstractAustralia has 2 genera and 4 species of Tropidocephalini: Pseudembolophora macleayi Muir, Tropidocephala dryas Kirkaldy, T. eximia (Kirkaldy) and T. neoamboinensis Muir; all are redescribed. T. hamadryas Kirkaldy is synonymised with T. dryas. A key to these genera and species is given.
EFFECTS OF DELAYED MATING ON THE REPRODUCTION OF PECTINOPHORA SCUTIGERA (HOLDAWAY) (LEPIDOPTERA: GELECHIIDAE)
Authors: WALKER P. W. 
Published: April 2007

AbstractAt 25°C, virgin female Pectinophora scutigera were paired with a single virgin male of the same age < 1, 10, 20 and 30 d after eclosion. Delayed mating significantly reduced the proportion of females laying fertile eggs, the total number of eggs laid per female, and the duration of oviposition, but did not affect the preoviposition period, percentage egg hatch, or the “effective” longevity of females (number of days from eclosion to last fertile egg laid). The number of first instars produced per female was reduced by 40.2, 55.7 and 65.9% when mating was delayed for 10, 20 and 30 d, respectively. The results are discussed in relation to the control of P. scutigera by mating disruption with synthetic sex pheromone.
NOTES ON PHYLLOCNISTIS CITRELLA STAINTON (LEPIDOPTERA: PHYLLOCNISTIDAE) ATTACKING FOUR CITRUS VARIETIES IN DARWIN
Authors: Wilson Colin G. 
Published: April 2007

Abstract Phyllocnistis citrella Stainton occurred throughout the year at Darwin in the Northern Territory and attacked more than half of the new leaves produced on 4 varieties of citrus. A mean of 5.9 eggs per leaf was recorded, with 32.7% on the upper surface. Only 5.2% of larvae pupated, with most succumbing to crowding. During the hottest months the life cycle was completed in 14–18 days. Citrus paradisi Macfadyen (var. Marsh's seedless grapefruit) was the most susceptible of the citrus varieties examined.
TWO NEW GENERA OF HARPACTORINAE (HEMIPTERA: REDUVIIDAE) FROM NORTHERN AUSTRALIA
Authors: Malipatil M. B. 
Published: April 2007

AbstractTwo new genera, Undiareduvius (type species U. aquilonius sp.n.) and Gorareduvius (type species G. westraliensis sp.n.) are described and illustrated from northern Western Australia and the Northern Territory and are placed in the subfamily Harpactorinae. U. aquilonius has been observed to gather sticky exudate from the leaves of the grass Triodia (which it frequents) on its centrally swollen fore tibia, presumably to assist prey capture. The relationships of the new genera with other Australian harpactorines are noted.
SOIL TEXTURE AND THE DISTRIBUTION OF ANTITROGUS PARVULUS BRITTON, LEPIDIOTA CRINITA BRENSKE AND L. NEGATORIA BLACKBURN (COLEOPTERA: SCARABAEIDAE) IN SOUTH QUEENSLAND SUGARCANE FIELDS
Authors: Cherry R. H. , Allsopp P. G. 
Published: April 2007

AbstractThirty sugarcane fields located on different soil types in southern Queensland were sampled for the melolonthine canegrubs Antitrogus parvulus Britton, Lepidiota crinita Brenske and L. negatoria Blackburn. Soil parameters (sand, silt, clay, pH) were also measured for each field. Correlations between the relative abundance of the canegrub species and soil parameters were determined. Distinct soil preferences were shown among 2 of the 3 canegrub species. A. parvulus abundance was positively correlated with clay and silt content and negatively correlated with sand content. L. negatoria abundance was positively correlated with sand content and negatively correlated with clay and silt content. L. crinita abundance showed no significant correlations with sand, silt, or clay content. The abundance of none of the 3 species showed any significant correlation with soil pH.
OCCURRENCE OF SEXUAL MORPHS OF THERIOAPHIS TRIFOLII (MONELL) F. MACULATA (HEMIPTERA: APHIDIDAE) IN THE FIELD
Authors: Milne Wendy M. , Wellings Paul W. 
Published: April 2007

AbstractThe seasonal incidence of sexuales of spotted alfalfa aphid in field collected material is reported. This is the first record of these morphs in Australia and is important as the probability of new biotypes may be increased.
CHLOROPHYLL FLUORESCENCE KINETICS AS A MEASURE OF STRESS IN PLANTS INFESTED WITH APHIDS: IMPLICATIONS FOR STUDIES OF RESISTANCE
Authors: Blanco L. R. , Adamson H. Y. , Hales D. F. 
Published: April 2007

AbstractFast chlorophyll fluorescence kinetics are shown to be an early indicator of plant stress caused by aphid feeding. We report results for barley infested with Sitobion nr fragariae and for susceptible and resistant lucerne cultivars infested with spotted alfalfa aphid Therioaphis trifolii (Monell) f. maculata and pea aphid Acyrthosiphon pisum (Harris). The method has potential in rapid assessment of plant susceptibility or resistance, and of aphid phytotoxicity, and may be equally applicable to studies of plant stress caused by other sucking insects, by mites and by plant pathogens.
DEVELOPMENT OF SCELIO BIPARTITUS KIEFFER (HYMENOPTERA: SCELIONIDAE) IN DIAPAUSE EGGS OF GASTRIMARGUS MUSICUS (F.) (ORTHOPTERA: ACRIDIDAE)
Authors: Baker G. L. , Dysart R. J. 
Published: April 2007

AbstractTwo new developmental pathways were found in Scelio bipartitus parasitising diapause eggs of Gastrimargus musicus in a temperate region; overwintering as pharate adults within the host egg to emerge in spring; and overwintering as larvae with development to the adult stage and emergence in late spring. A third pathway, nondiapause development to the adult stage in late summer and emergence in autumn was observed for the first time in a temperate region. Parasitism rates ranged from 4.3–11.7% in the first year of an outbreak to 61.5–87.5% in the second (final) year. In Queensland, G. musicus occasionally overwinters as nymphs and oviposits in spring. Overwintering by S. bipartitus as pharate adults is a possible adaptation to this host developmental pathway.
DAILY TRAP CATCHES OF TWO EARWIG (DERMAPTERA) AND THREE CRICKET (ORTHOPTERA) SPECIES IN CENTRAL QUEENSLAND
Authors: Simpson G. B. , Mayer D. G. , Robertson L. N. 
Published: April 2007

AbstractDaily light trap catches of Nala lividipes (Dufour), Labidura truncata Kirby (both Dermaptera: Labiduridae), Teleogryllus oceanicus (Le Guillou), Lepidogryllus comparatus (Walker), and L. parvulus (Walker) (all Orthoptera: Gryllidae) from 1 September 1986 to 31 August 1989 at Emerald were recorded. In 1986/87 and 1988/89 more N. lividipes, L. truncata and Lepidogryllus spp. were trapped than in 1987/88. More T. oceanicus were trapped in 1988/89 than the previous 2 years. More females than males were trapped for each species, and for the Dermaptera, more major than minor males. Significant (P < 0.01) regressions of numbers caught were obtained for all species using a multiplicative logistic curve utilising average air temperature and wind‐run as the independent variables, except for T. oceanicus where average temperature alone was suitable. Daily catch numbers for these species are interpreted and discussed from the prediction equations. Further sampling of the Lepidogryllus spp. and N. lividipes over a wider range of ecosystems is suggested. Field sampling should be done concurrently to correlate relative and absolute population estimates.
MONITORING BLACKFLY (DIPTERA: SIMULIIDAE) PESTS
Authors: Ballard J. W. O. , Elder R. J. 
Published: April 2007

AbstractBlackflies are common biting insect pests following flooding in northeastern Australia, yet there have been few attempts to quantify the severity of an outbreak. Two tent‐trap designs and human‐bait collections were used to estimate the numbers of Austrosimulium pestilens Mackerras and Mackerras and A. bancrofti (Taylor) s.l. females seeking a blood meal following flooding of the Fitzroy River near Rockhampton in 1991. A statistical model was constructed to predict changes in the number of trapped, and presumably host‐seeking flies, and to generate an equation relating tent‐trap captures and human‐bait collections. Tent‐traps placed in the open collected five flies in 32 min, the equivalent human biting rate of about 1/min. We suggest this is a threshold level at which control measures should be introduced to reduce the threat to humans.
FURTHER DESCRIPTIONS OF IMMATURE STAGES OF AUSTRALIAN CULICOIDINI (DIPTERA: CERATOPOGONIDAE) WITH A REVISED KEY TO PUPAE
Authors: Elson‐Harris M. M. , Murray M. D. 
Published: April 2007

AbstractPupae of four species of Culicoides (C. multimaculatus Taylor, C. oxystoma Kieffer, C. sigmoidus Lee and Reye and C. waringi Lee and Reye) are described and included in a revised key to pupae of 31 species of Culicoidini. The fourth instar larva of C. waringi is also described.
TWO SPECIES OF ACROCLISOIDES GIRAULT AND DODD (HYMENOPTERA: PTEROMALIDAE) PARASITIC ON TRISSOLCUS BASALIS (WOLLASTON) (HYMENOPTERA: SCELIONIDAE), A PARASITOID OF NEZARA VIRIDULA (L.) (HEMIPTERA: PENTATOMIDAE)
Authors: Clarke A. R. , Seymour J. E. 
Published: April 2007

AbstractTwo species of hymenopterous parasitoids in the genus Acroclisoides are recorded as parasitoids of the scelionid egg parasitoid Trissolcus basalis, an introduced biological control agent of Nezara viridula, the green vegetable bug. This is the first time that hyperparasitoids have been reportedly associated with N. viridula.
RESISTANCE TO DELTAMETHRIN IN BOOPHILUS MICROPLUS (CANESTRINI) (ACARINA: IXODIDAE) IN NEW CALEDONIA
Authors: Brun L. O. 
Published: April 2007

AbstractA strain (S) of Boophilus microplus collected from the east coast of New Caledonia was compared with a strain (R) from the west coast for resistance to deltamethrin. The R strain was significantly more resistant than strain S with a 5.7 fold resistance factor determined at the LD50 using the larval packet technique. This is the first report of synthetic pyrethroid resistance in B. microplus in New Caledonia.
TOXICITY OF ORGANOPHOSPHORUS INSECTICIDES TO FOURTH‐INSTAR LARVAE OF CHIRONOMUS TEPPERI SKUSE (DIPTERA: CHIRONOMIDAE)
Authors: Stevens M. M. 
Published: April 2007

AbstractCommercial formulations of chlorpyrifos, trichlorfon, malathion, diazinon, temephos, fenthion, chlorfenvinphos and chlorpyrifos‐methyl were bioassayed at 25 ± 1 °C against fourth‐instar larvae of the rice bloodworm, Chironomus tepperi. Chlorpyrifos was the most toxic, with an LC50 of 1.3 ppb. The relative order of LC50s in ppb was (LC50 values in brackets); chlorpyrifos (1.3) < chlorpyrifos‐methyl (2.5) < temephos (2.8) < chlorfenvinphos (6.0) < malathion (8.4) < diazinon (35.5) < trichlorfon (67.4) < fenthion (159.4). All compounds are sufficiently toxic to be effective against C. tepperi in the field, but the results suggest that some insecticides, particularly chlorpyrifos, are being applied at excessive rates.
A LABORATORY ASSAY FOR ASSESSING THE SUSCEPTIBILITY OF DAMALINIA OVIS (SCHRANK) (PHTHIRAPTERA: TRICHODECTIDAE) TO AVERMECTINS
Authors: Rugg D. , Thompson D. R. 
Published: April 2007

AbstractA bioassay suitable for the determination of dose responses of the sheep body louse, Damalinia ovis, to avermectins is described. The inclusion of wool/skin substrate resulted in approximately 90% survival of controls over the 48‐h test period. Ivermectin and abamectin were highly effective against D. ovis, and similar responses of pyrethroid‐susceptible and resistant strains indicated that there was no cross‐resistance to ivermectin.