Tegenaria

Tegenaria atrica E Female silk and cuticle elicit courtship behavior in males Prouvost etal., 1999... 

Tegenaria domestica s Male orientation towards female silk Roland, 1984... 

Tegenaria parietina S Males exhibit courtship on empty female webs Krafft, 1978... 

Similar investigations with the related species Tegenaria pagana and Tegenaria domestica (Trabalon et al., 1997) determined that males of both species reacted to attractive females with longer contact times compared with that for unattractive or solvent-washed females. The response was species specific, and when pentane extracts were partitioned between pentane and methanol, most of the activity was found in the methanol fraction. The methanol fractions contained fatty acids and their methyl esters and showed quantitative differences between the two physiological states of the females with respect to myristic acid, methyl palmitate,... 

Pourie, G. and Trabalon, M. (2001). Plasticity of agonistic behaviour in relation to diet and contact signals in experimentally group-living of Tegenaria atrica. Chemoecology 11 175-181. 

Prouvost, O., Trabalon, M., Papke, M. and Schulz, S. (1999). Contact sex signals on web and cuticle of Tegenaria atrica (Araneae, Agenelidae). Archives of Insect Biochemistry and Physiology 40 194-202. 

Table 16.2 Wax components from cuticle o/Tegenaria sp. (Agelenidae) (Trabalon et al 1996, 1997 Prouvost et al., 1999).

Tegenaria atrica (Koch) silk and cuticle Prouvost et al., 1999 Pourie and Trabalon, 1999a, 1999b, 2001 Pourie etal., 2005 Trabalon et al., 1996,1998, 2005... 

Tegenaria domestica (Clerck) silk and cuticle Roland, 1984 Trabalon et al., 1997... 

Trabalon, M., Bagneres, A.-G. and Roland, C. (1997). Contact sex signals in two sympatric spider species, Tegenaria domestica and T. pagana. J. Chem. Ecol., 23, 747-758. 

Trabalon, M., Niogret, J. and Legrand-Frossi, C. (2005). Effect of 20-hydroxyecdysone on cannibalism, sexual behavior, and contact sex pheromone in the solitary female spider, Tegenaria atrica. Gen. Comp. Endocrinol., 144,60-66. 

Trabalon, M Pourie, G. and Hartmann, N. (1998). Relationships among cannibalism, contact signals, ovarian development and ecdysteroid levels in Tegenaria atrica (Araneae, Agelenidae). Insect Biochem. Mol. Biol., 28,751-758. 

Tegenaria agrestis (hobo spiders) are found in Europe and the Pacific Northwestern United States. T. agrestis is brown with gray markings and 10 mm in length. Hobo spiders are found in wood-piles, basements, and moist areas. 

Representative Genera Latrodectus Loxosceles Argiope Chiracanthium Lycosa Phidippus Tegenaria... 

Argiope, Chiracanthium, Lycosa, Phidippus, Tegenaria agrestis There are some brown spiders that somewhat resemble the Brown Recluse to the layperson. Without proper identification, it is often not possible to immediately diagnose a brown recluse spider bite. Complicating the diagnosis further is the fact that there are several other species of spiders that can cause a necrotic skin lesion, although not as severe. 

Tegenaria agrestis The initial bite of the hobo spider may be painless and unnoticed. It is the most similar to the brown recluse. Induration surrounded by erythema may be present within 30 min. A blister formation typically follows within 15-35 h. About... 

Argiope, Chiracanthium, Lycosa, Phidippus, Tegenaria agrestis... 

C. Other spiders. Bites from most other spider species are of minimal clinical consequence. As with many arthropod bites, a self-limited local inflammatory reaction may occur, and any break in the skin may become secondarily infected. Bites from a few species can cause systemic symptoms (myalgias, arthralgias, headache, nausea, vomiting) or necrotic ulcers (eg, Phidippus spp and Tegenaria agrestis). 

Sulfate Guanosine 5 sidfate C10H13N5O8S 363.307 Isol. from the venom of the spider Tegenaria agrestis. 

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