Males of Zophobas aff. confusus and Nyctobates gigas (Tenebrionidae) collected in the State of Pernambuco, Brazil, were studied through conventional staining, C-banding, silver nitrate impregnation (AgNO₃), and the base specific fluorochromes CMA₃ and DAPI. Z. aff. confusus was found to have 2n = 20 (9+Xyp) while N. gigas exhibited 2n = 18 (8+neoXY). Large pericentromeric blocks of constitutive...

Invasion by large populations of the litter-dwelling darkling beetle Luprops tristis Fabricius (Coleoptera: Tenebrionidae) following the short spell of summer rains during April, and their extended state of dormancy is a regular event in rubber plantation habitats in south-western India. Strong smelling secretions of the beetle cause blisters on skin of human beings. Such secretions appear defe...

Three new taxa, endemic of Sardinia, are described in the genus Asida Latreille, 1802: Asida (Asida) dryas sp. nov. (type locality: Capoterra, Gutturu Mannu), A. (Asida) anachoreta sp. nov. (type locality: Gonnosfanadiga, Punta Cammedda), and A. (Asida) solieri caroli ssp. nov. (type locality: Morgongiori, Is Benas). Additional systematic, distributional and ecological data are provided for som...

The knowledge on ovigeny in parasitoids is important for basic studies on physiology and applied biological control. The ovigeny pattern and type of ovariole of the parasitoid Palmistichus elaeisis Delvare & LaSalle (Hymenoptera: Eulophidae) were studied in newly-emerged females at seven, 14, 24 and 48 h intervals after their emergence from Tenebrio molitor L. pupae (Coleoptera: Tenebrionidae)....

The red flour beetle, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) has had a long association with human stored food and can be a major pest in anthropogenic structures used for the processing and storage of grain-based products. Anthropogenic structures are fragmented landscapes characterized by spatially and temporally patchy resources. Here we investigate the ability of female T....

The juvenile hormone analog methoprene, and the chitin synthesis inhibitor novaluron, were evaluated by exposing late-stage larvae of Tribolium castaneum (Herbst) or Tribolium confusum (Jacqueline DuVal) (Coleoptera: Tenebrionidae) to it. The larvae were exposed to it in food material, on concrete, on plywood, and on floor tile. Larvae of T. castaneum were more susceptible than T. confusum larv...

Для территории Республики Татарстан впервые составлен список адвентивных и синантропных жесткокрылых (Insecta: Coleoptera), который включает 56 видов из 21 семейства. 19 были отмечены в регионе за последнее десятилетие. Наибольшее число таких относятся к семействам Dermestidae – 9 видов, Cryptophagidae 7, Tenebrionidae 5, Latridiidae 4. 5 Omonadus floralis, Atomaria lewisi, Cryptophagus punctip...

The majority of insects use serine proteinases like trypsin and chymotrypsin as main enzymes to digest their food [1]. These types of peptidases develop their maximum activity under alkaline to neutral pH conditions [2]. In some insect groups the intestinal lumen is acidic and the digestion switched to cysteine-like proteinases such as cathepsin D or L [3,4]. Some Coleoptera groups (e.g. Bruchi...