Opiliones

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Opiliones

(also Phalangida), an order of arthropods of the class Arachnida. The body length is 1–22 mm. The animals resemble spiders, but unlike the latter, they have a segmented abdomen joined to the prosoma by a broad base. The first pair of oral extremities are chelate chelicerae that lack poison glands; the pedipalps are short. The walking legs are very long and slender and may be easily torn off. Breathing is by means of tracheae. Of the more than 2,400 species, 72 are found in the USSR. The arthropods live on the forest floor, under the bark of trees; they are often found on fences and various other structures. The animals are nocturnal predators.

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Two new species of Opiliones from Southern Siberia and Mongolia, with an establishment of a new genus and redefinition of the genus Homolophus (Arachnida: Opiliones: Phalangiidae).

New record of the genus Homolophus (Opiliones: Phalangiidae) in Turkey and SEM studies on its morphology

Early lineages of Gonyleptidae (Arachnida, Opiliones, Laniatores).

Reproductive behavior of Chavesincola inexpectabilis (Opiliones, Gonyleptidae) with description of a new and independently evolved case of paternal care in harvestmen

In view of this, the present paper is the first that concentrates on the comparison of the phenology of Opiliones at different elevations, as well as on the seasonal and altitudinal variation in species composition in Lefka Ori (White Mountains) on Crete.

Phenology of Opiliones on an altitudinal gradient on Lefka Ori Mountains, Crete, Greece

2002 for the phylogenetic placement of Cyphophthalmi) is interesting because if the composition of defensive secretions is of any phylogenetic use, its ancestral state in this group could be used to polarize the characters higher in the tree and to optimize the ancestral state of the defensive substances in Opiliones.

The chemical defenses of a stylocellid (Arachnida, Opiliones, Stylocellidae) from Sulawesi with comparisons to other Cyphophthalmi

Various arachnids (Acari, Opiliones, Scorpiones, and Araneae) were assembled for this survey and assessed for infection with Cardinium.

Widespread infections by the bacterial endosymbiont Cardinium in arachnids

2007b), in addition to a recently published book on Opiliones (Pinto-da-Rocha et al.

On the endemic Sri Lankan genus Pettalus (Opiliones, Cyphophthalmi, Pettalidae) with a description of a new species and a discussion of its diversity

Large prosomal exocrine scent glands, also called defensive or repugnatorial glands, are an important synapomorphic character of Opiliones (Martens 1978).

Unusual organization of scent glands in Trogulus tricarinatus (Opiliones, Trogulidae): evidence for a non-defensive role

La fauna de escorpiones y opiliones (Arachnida) de la provincia de Cordoba.

Description of Zabius gaucho (Scorpiones, Buthidae), a new species from southern Brazil, with an update about the generic diagnosis

Arachnids are generally considered to be primarily nocturnal, although there are exceptions among representatives of the orders Araneae, Solifugae, and Opiliones (Cloudsley-Thompson 1978; Foelix 1996; Punzo 1998; Hoenen & Gnaspini 1999).

Activity pattern of the Neotropical harvestman Neosadocus maximus (Opiliones, Gonyleptidae): sexual and temporal variations

Patrones zoogeograficos de los Opiliones argentinos (Arachnida: Opiliones).

Distribution of Geraeocormobius sylvarum (Opiliones, Gonyleptidae): range modeling based on bioclimatic variables

It is a curious question why it took so long for such a book to appear on the third most diverse order, Opiliones.

Harvestmen: the Biology of Opiliones

The putative Pennsylvanian arachnid order Kustarachnida--with effectively only one valid species--is a misidentified harvestman and has thus been included in the Opiliones data.