AHSI~H; \C. I . An equittion based on weather diitit explained differences in capture counts of pine bark beetles trapped twice weekly for an entire year at a single infestation and contributed to the understanding of some ;tspects of beetle dynamics. The proportion ctf the beetles that reached the traps increased with maximum temperature and decreased with heavy rain. Production of adults tend...

Two new species of Oxytrechus Jeannel 1927 are described from the páramos of the Ecuadorian Andes in Pichincha province (Ecuador: Northern Sierra): O. osellai n. sp. from Cangahua at 3375 m a.s.l. and O. belloi n. sp. from Paso de la Virgen at 3515 m a.s.l.

Se describe un nuevo género y especie de Anobiinae (Coleoptera: Ptinidae), Austronobium flavus gen. n. sp. n., a partir ejemplares recolectados obtenidos plantas hospedantes en Chile central. entregan caracteres diagnósticos los taxones, incluido imágenes del adulto las estructuras genitales ambos sexos.

The paper gives information on the invasion of Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae) into north European part Russia. Asian ladybird is recorded for first time from Novgorod and Yaroslavl Regions. All records this alien species Russia Northern Caucasus are listed.

eastern rock nuthatch (sitta tephronota) and western rock nuthatch (s. neumayer) are two closely related and sympatric species in iran, which have been known as the classical case of character displacement since 1950. nevertheless, some questions related their niche partitioning is still unanswered. this study was conducted to determine the diet differentiation, as an important niche dimension,...

b a ckground: aquatic insects are the  major groups of arthropods that spend  some parts of their life cycle in the water. these insects play an important role for transmission of some human and animal diseases. there is few information about the aquatic insects fauna of iran. m e t hods: to study the aquatic insects fauna, adult, nymphal and larval collections were carried out from different h...

Loss of flight in Japanese carrion beetles is correlated with greater population subdivision and higher speciation rate. This reveals the complex relationship of trait evolution with dispersal power, range size and diversification.

erythraeus (zaracarus) coleopterus mortazavi, hajiqanbar & saboori, 2012 (acari: parasitengona: erythraeidae) was described based on a single specimen from kerman province, southeastern iran, associated with a scarabaeid beetle, cyphonoxia sp. (coleoptera: scarabaeidae). this species reports for the second time from stored grain (off host) in saqqez and baneh cities, kurdistan province, western...