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Genus Dalquestia - Dalquestia Harvestmen

Dalquestia rothorum - male Dalquestia rothorum - male Dalquestia rugosa  - Dalquestia rugosa - female Halloween Harvestman - Dalquestia formosa Dalquestia formosa
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Opiliones (Harvestmen)
Suborder Eupnoi
Superfamily Phalangioidea
Family Globipedidae
Genus Dalquestia (Dalquestia Harvestmen)
Explanation of Names
named after Walter W. Dalquest
5 total species, 3 in US
Transverse rows of tubercles on abdomen; legs with distinct longitudinal rows of tubercles; Leg tibia angular in cross section; males with legs I and III enlarged
Dalquestia formosa - TX
Dalquestia rothorum - AZ
Dalquestia rugosa - southern CA
Rocky woodlands - e.g., rocky juniper woodlands in TX, rocky oak/chaparral in CA
Appear to mature in Fall & Winter. Adults in southern CA appear in DEC + JAN.
Print References
Cokendolpher, J.C. (1984) A new genus of North American harvestmen (Arachnida: Opiliones: Palpatores). In: Horner, N.V. (Ed.), Festschrift for Walter W. Dalquest in honor of his sixty-sixth birthday. Midwestern State University, Wichita Falls, Texas, pp. 27–43. (online PDF)

Cokendolpher, J.C. & Sissom, W.D. (2000) Further contributions to the study of Dalquestia (Opiliones: Sclerosomatidae). Entomological News, 111(4), 243–249. (online PDF)

Cokendolpher, J.C. & Stockwell, S.A. (1986) A new species of harvestman from Arizona (Arachnida: Opiliones: Palpatores: Dalquestia). Southwestern Naturalist, 31(1), 49–53. (online PDF)