PDA

View Full Version : Family Tetragnathidae (Long jawed orb-weavers)



Arosa Hya
08-06-2016, 04:29 PM
https://upload.wikimedia.org/wikipedia/commons/9/96/Leucauge_cf._decorata_(Family_-_Tetragnathidae).JPG

http://c8.alamy.com/comp/AWTT4W/tetragnatha-montana-a-family-tetragnathidae-a-long-jawed-stretch-spider-AWTT4W.jpg
http://bugguide.net/images/cache/XQ3/RKQ/XQ3RKQJRYKK070YQG0DQI01R3K1RMQL0QQL0P0R0P0JRXQFRMQ YRSQDR60Z09000W0Q0E0H0QQJRKQCR0QZ07Q.jpg
http://bugguide.net/images/cache/IKV/KGK/IKVKGKBK0K30EQA02QA08QV0KKPKRK10SK9KZK9K2QA08QT01Q T06QWKPQT0PQLSXKRS2QB0UQVKVQHSWQAKGK9K.jpghttp://bugguide.net/images/cache/FR7/QOR/FR7QORIQWRW0CQ70CQ50OQ80OQ70BRFKTQG0JQHQCQG0JQW0R0 60DRU0CRU0K00Q00KQQ020Q0KQORN0K07QTRQQ3R.jpg





Identification Characters:



1. Tibia and meta-tarsus 1 & 2 without pro-lateral row of spines.
2. Sternum not wider than long, Posterior coxae not widely separated.
3. Posterior spinnerets present, not shorter than anterior.
4. Posterior spinnerets shorter and thick.
5. Anal Tubercle small, not fringed, ocular group not compact.
6. Tarsi of the usual type, Labium longer than wide, legs not very long.
7. With 8 Eyes.
8. Anterior row with 4 eyes.
9. Tarsi with 3 Claws without claw tufts.
10. The 6 spinnerets not in a transverse row, But of the usual arrangement.Tracheal spiracle in the usual place in front of the spinnerets.
11. Eyes group not forming a Hexagon, and clypeus much lower. Abdomen not pointed and legs without conspicuous spines.
12. Tarsus 4 not provided with comb of serrated Bristles.
13. Tarsi without Trichobothria.
14. Clypeus in most lower than the height of the median ocular area. Eyes Homogeneous.
15. Epigastric furrow between lung slits Procurved. No Boss on chelicera . In most cases Chelicerae large & Powerful .