introduction: linguatula serrata is a zoonotic parasite, belonging to the class pentastomida. the major aim of this study was to evaluate the impact of sodium chloride (nacl) and heat on survival time of linguatula serrata nymphs. materials & methods: thirty nymphs (10 in triplicate) were separately transferred to plastic tubes, containing different concentrations of nacl solution (2%, 5% and 1...

Insect herbivores that are tended by ants exhibit a range in host plant use from specialists to extreme generalists. Potential factors that may inßuence relative suitability of different host plants include the presence or absence of ants and the size of aggregations formed by nymphs feedingonahost.WeusedamembracidÐantmutualism to testwhetherpresenceof ants or aggregation size (from 20 to 320 n...

Introduction: Linguatula serrata is a zoonotic parasite, belonging to the class Pentastomida. The major aim of this study was to evaluate the impact of sodium chloride (NaCl) and heat on survival time of Linguatula serrata nymphs. Materials & Methods: Thirty nymphs (10 in triplicate) were separately transferred to plastic tubes, containing different concentrations of NaCl solution (2%, 5% and...

For many insect species, group living provides physiological and behavioral benefits, including faster development. Bed bugs (Cimex lectularius L.) live in aggregations composed of eggs, nymphs, and adults of various ages. Our aim was to determine whether bed bug nymphs reared in groups develop faster than solitary nymphs. We reared first instars either in isolation or in groups from hatching t...

The current study investigated the biology of nymphs of the first and second instars of Argas (Persicargas) miniatus. Nymphs were deprived of food for 15, 30 or 60 days and held at 27 ± 1 °C and 80 ± 10% relative humidity (controlled conditions) or at room conditions of temperature and relative humidity. Nymphs of first instar deprived of food for 15 or 30 days molted to second and third instar...

Trunks of 83 trees in a mixed deciduous forests in Maryland were sampled for the presence of nymphs of the blacklegged tick, Ixodes scapularis Say, and the lone star tick, Amblyomma americanum (L.). Although one or more nymphs of either I. scapularis or A. americanum was found in leaf litter and substrate < or = 1 m from the bases of 47% of the trees sampled, a total of 6 I. scapularis nymphs w...

Mature colonies of the Formosan subterranean termite, Coptotermes formosanus Shiraki, like most other termite species, produce a reproductive caste in the form of nymphs that subsequently give rise to alates. Temporal production of nymphs in C. formosanus was monitored in monthly collections from four Þeld traps in New Orleans, LA. Nymphs were present throughout the year with peak numbers obser...

We analyzed the effect of predation and parasitism by the native dryinid Haplogonatopus hernandezae as a natural enemy of the rice pest Tagosodes orizicolus under controlled conditions in an insectary in Costa Rica. We found no change in the proportion of T. orizicolus nymphs that were fed upon, parasitized, and that showed no apparent damage throughout the adult stage in H. hernandezae, which ...