Category:Diplurinae

From Dipluridae

Diplurinae Simon, 1889
Systematic
Order: Araneae
Infraorder: Mygalomorphae
Family: Dipluridae

Contents 1 Diagnosis 2 Description 3 Genera included 4 Key to the genera of Diplurinae 5 In synonymy 6 References

Diagnosis

Differs from all other subfamilies of Dipluridae by the presence of two rows of teeth on paired claws

Description

Two rows of teeth on paired claws; unpaired claw long, curved, bare. Maxillae with cuspules and broad serrula. Tarsi of males pseudosegmented; at least tarsi IV of females cracked ventrally. Leg formula 4123. Eye group about twice as wide as long. Tarsi of male palp short, with two similar lobes, aspinose. One prolateral row of teeth on cheliceral furrows. Carapace almost flat with short, straight, or recurved fovea. Clypeus absent or narrow and indistinct. Maxillae longer than wide with short or indistinct anterior lobe. Labium large, about two-thirds as long as wide, with few or no cuspules; labiosternal suture wide, deep. Sternum wide with small, oval or round, marginal sigilla. Legs elongate, generally spinose except for tarsi. Tibia I of males with one or two low spurs and megaspines (Trechona, some Diplura) or unarmed (some Diplura). Cymbium aspinose, divided into two short lobes; bulb pyriform, with elongate embolus circular in distal cross-section. Scopulae on tarsi I-IV dense (Trechona, some Linothele), thin but divided on tarsi I and II and more divided and thinner on tarsi III and IV (some Linothele), or sparse and interspersed by scattered setae (Diplura). Paired claws of all legs with two rows of short teeth situated proximally and low on claw; claws narrow (Diplura), or wider (Linothele, Trechona). Unpaired claws long, curved, bare. Palpal claw of females with one row of teeth on medial (some Linothele, Diplura) or proximal keel (Linothele, Trechona). Tarsi of males elongate and pseudosegmented; tarsi of females with medial ventral weakness (cracked) on at least leg IV (some Diplura) or all pseudosegmented (Linothele, Trechona, some Diplura). Posterior lateral spinnerets with three subequal segments or apical segment very long and slender (some Linothele.

Genera included

• † Clostes Menge, 1869 — fossil, Eocene Baltic amber
• † Cretadiplura Selden, 2005 — fossil, Early Cretaceous
• † Dinodiplura Selden, 2005 — fossil, Lower Cretaceous
• Diplura C. L. Koch, 1850 — South America, Cuba
• Harmonicon F. O. P.-Cambridge, 1896 — French Guiana, Brazil
• Linothele Karsch, 1879 — Venezuela, Colombia, Ecudaor, Peru
• Metriura Drolshagen & Bäckstam, 2009 - Brazil
• Trechona C. L. Koch, 1850 — Brazil

Key to the genera of Diplurinae

1. Maxillae with lyra ..........3
– Maxillae without lyra ..........2
2. AME>ALE; metatarsus I basally curved in males, erect setae right in front of the fovea present ..........Metriura
– AME<ALE; metatarsus I not basally curved in males, erect setae right in front of the fovea absent ..........Linothele
3. Lyra consisting of 50 or more clavate setae, forming a large black field diagonal prolateral on maxillae ..........Trechona
– Lyra consisting of less than 50 bristles, not forming a large black field diagonal prolateral on maxillae ..........3
3. Lyra consisting of hookshaped bristles; dense scopula present on metatarsi; tibia of pedipalps not incrassate and cymbium not significantly short in males ..........Harmonicon
– Lyra consisting of clavate setae; scopula absent on metatarsi (some); tibia of pedipalps incrassate (some) and cymbium rather short in males ..........Diplura

In synonymy

Achetopus Tullgren, 1905 = Diplura C. L. Koch, 1850 (Raven, 1985a: 74).
Eudiplura Simon, 1892 = Trechona C. L. Koch, 1850 (Raven, 1985a: 75).
Euharmonicon Mello-Leitão, 1920 = Diplura C. L. Koch, 1850 (Raven, 1985a: 74).
Evagrella Mello-Leitão, 1923 = Diplura C. L. Koch, 1850 (Raven, 1985a: 74).
Parathalerothele Canals, 1931 = Diplura C. L. Koch, 1850 (Schiapelli & Gerschman, 1968b: 185, sub Achetopus).
Prosharmonicon Mello-Leitão, 1938 = Diplura C. L. Koch, 1850 (Bücherl, 1962a: 261, sub Harmonicon).
Pseudohermachura Mello-Leitão, 1927 = Diplura C. L. Koch, 1850 (Bücherl, 1962a: 261, sub Harmonicon).
Taunayella Mello-Leitão, 1923 = Diplura C. L. Koch, 1850 (Raven, 1985a: 74).
Thalerothele Bertkau, 1880 = Diplura C. L. Koch, 1850 (Raven, 1985a: 159).
Uruchus Simon, 1889 = Linothele Karsch, 1879 (Raven, 1985a: 75).
Neodiplura F. O. P.-Cambridge, 1896 = Uruchus Simon, 1889 (Simon, 1903a: 964).
Subsequent: Neodiplura F. O. P.-Cambridge, 1896 = Linothele Karsch, 1879

References

• Raven, Robert J. (1985): The spider infraorder Mygalomorphae (Araneae): Cladistics and systematics. Bull. Am. Mus. nat. Hist. 182: 1-180.PDF