Acarologia 

About: Acarologia is an academic journal published by EDP Sciences. The journal publishes majorly in the area(s): Acari & Acariformes. It has an ISSN identifier of 0044-586X. Over the lifetime, 2465 publications have been published receiving 19323 citations. The journal is also known as: Acaralogia.

Some observations on the chaetotaxy of the caudal body region of gamasine mites (Acari: Mesostigmata), with a modified notation for some ventrolateral body setae

Abstract: On passe en revue la chaetotaxie de l'opisthosoma des Gamasina holotriches suite a l'hypothese voulant que ces acariens possedent six segments opisthosomatiques embryonnaires. En se servant d'acariens Ascidae comme exemples, on modifie la notation des quelques poils ventrolateraux posterieurs de l'opisthosoma

Oviposition of Boophilus microplus (Canestrini) (Acarida: Ixodidae). I. Influence of tick size on egg production

Abstract: Egg production by females of Boophilus microplus (Can.) was shown to be proportional to initial weight of the females; small ticks were found to be less efficient in producing eggs than ticks in the optimal weight range of 160-300 mg. The duration of the oviposition period varied with temperature, the peak occurring early in the cycle. Eggs laid at the beginning and end of the oviposition period (10% of the total) took longer to hatch and were not as viable as eggs laid during the peak. The length and breadth of the eggs did not vary markedly throughout the oviposition period but the weight decreased towards the end of the cycle.

The concept of life types in Tetranychinae. An attempt to classify the spinning behaviour of Tetranychinae

Abstract: Life patterns of thirty-one spider mite sp.ecies in Japan were observed and categorized in three basic !ife types , including severa! subtypes, using characteristics of spinning behaviour, structure of web as weil as other habits. A little web (LW) !ife type, which in eludes four subtypes was recognized in four genera, namely Aponychus, Eurytetranychus, Panonychus and Yezonychus. Many species of Tetranychus and Eotetranychus, and a few of 0/igonychus, Panonychus and Schizotetranychus are accommodated in a category of complicated web type (CW) , which includes five subtypes. The third !ife type is characterized by a web nest (WN); it has five subtypes, and is found in the genera . Eotetranychus, Schizotetranychus and Oligonychus. It is postulated that the relationship between mite genus and leve! of !ife type complexity agrees with Tetranychinae phylogeny as proposed by GUTIERREZ et al. (1971). Relationships between host plants and spider mite !ife types operating on them indicated that polyphagous mites which live on unstable, annual host plants have only a single !ife type. This may be related to their mode of !ife as r-strategists. The !ife types of mites living on stable host plants, on the other hand, were quite diverse. Significance and problems of classification of !ife types in Tetranychinae, and relationships between the !ife types and !ife histories are also discussed.

Life history and life table of Phytoseiulus persimilis Athias-Henriot.

Abstract: The life cycle of P. persimilis was determined under a diurnal temperature cycle of 58 to 83° F to be as follows: The adult female, after a preovipositional period of 3.0 days, laid an average of 2-4 eggs per day for 22.3 days. During the preovipositional and ovipositional periods the females consumed 7·3 and 14.3 eggs of T. urticae, respectively. After ceasing to oviposit the females lived an average of 7.1 days during which each consumed 3·9 eggs per day. The incubation time was 3.1 days. Both male and female larval stages lasted 1.0 day. The larvae did not feed. The male and female protonymphal stages lasted 1.7 and 1.6 days, respectively. During this time both males and females ate an average of 4-4 eggs of T. urticae. lfale and female deutonymphal stages lasted 1.7 days, during which time the deutonymphs ate 6.0 eggs. Total developmental time for males was 7·5 days and for females, 7.4 days. Each sex ate an average of 10.5 eggs during development. From the life history data, a life table was constructed. The intrinsic rate of increase was 0.219 individuals per female per day. The population multiplied 44-4 times in a generation time of 17.32 days. These statistics form one of the important components in an appraisal of the ability of this predator in the control of tetranychid prey.