Aceria tulipae (K.) is responsible for important crop losses of garlic in all production areas around the world. However, very little is known about its development in relation to temperature and relative humidity (r.h). Laboratory rearings from egg to adult stage were done on pieces of the apical part of young garlic leaves. These leaf pieces were placed in aluminium dishes floating on water or put on a solid hygroscopic salt in closed plastic trays. Rearing done in dark incubators at constant temperatures (10°C to 458C) and with different r.h (25% to 75%) at 15°C and 258C showed that: i) the shortest development time occurs at about 258C; ii) the upper lethal temperature and the development threshold for the eggs are respectively estimated about 458C and 68C; iii) a r.h close to 100% is required for a high percentage of egg hatching, but water condensation on leaves is harmful. Host transpiration has an important regulatory effect on humidity conditions favouring mite survival. E E Lindquist, M W Sabelis and J Bruin. World Crop Pests 6. Elsevier Science BV. Pop I. 1961. Die Strichelvirose des Weisens in der Rumänischen Volksrepublik. Phytopathology Zeitung 43:325-336. Razvyazkina G M. 1966. Biology and feeding specializations of grass mites of the family Eriophyidae. In Trudi V Vse-Soyuzniy Sovyeshchaniye po virusnim boleznyam rastenii [The Works of

Abstract:To contribute to the knowledge of beetles (Coleoptera) of the mountainous region of Morocco, Talassemtane National Park (Western Rif, Chefchaouen district, Morocco) was surveyed. This is an exceptional protected area of the Mediterranean Intercontinental Biosphere Reserve (RIBM). The inventory was made using different traps combined with active searching periodically during 2013 and 2014. Among numerous species belonging to various families, the darkling beetles (Tenebrionidae) represent one of the major groups, in terms of diversity and heritage value. Thirty five species were identified, two species are new records to Morocco, and two other species, which were hitherto only known by the type specimens, have been rediscovered

1. The limited dispersal and the high trophic requirements of flightless saproxylic beetles makes them good indicators of spatial and temporal continuity. Few studies have been conducted on these species, and the two main studies produced contradictory results. Knowledge is thus lacking on this fauna, but before performing experiments to assess their value as indicators, it is important to know how and when they can be sampled.2. Sieving litter and Berlese extraction in six oak woodlands showed that sampling 10 trees per forest is sufficient to capture 97.2% of the fauna present.3. Two stands were surveyed at monthly intervals for 2 years to determine the species phenology. All the species were present throughout the year. Variation in abundance was only observed in four out of 11 species. Spring and fall were shown to be the best periods to survey them in the litter. No significant variation in abundance was observed between the two sampling years. This fauna thus appears to be very stable over time.4. Certain climate parameters, high humidity (little sunshine and rainfall several days before sampling) may result in the beetles being more abundant in the litter at certain times. For efficient sampling, long periods of fine weather should thus be avoided.