SPIDERS 



crouching on bare places in 

 Known also under Thomisus. 



fields and commons. 26 



22. Xysticus luctuosus, Blackwall. 



Cann Wood ; Bickleigh (G. C. B.). 

 Known also as Thomisus luctuosus. 



23. Xysticus erraticus, Blackwall. 



(O. P.-C.) 

 Known as Thomisus erraticus, Blackwall. 



24. Xysticus pint, Hahn. 



(O. P.-C.) 

 Known as Thomisus audax, Blackwall. 



25. Misumena vatia, Clerck. 



Ivybridge (G. C. B.) ; (O. P.-C.) 

 This species, one of the largest of the Thomisidae, 

 can be found in the blossoms of various woodland 

 plants, where it crouches amongst the petals on the 

 watch for its prey. The colour of the female is 

 yellow, with red lateral slashes, the male being much 

 smaller and almost black. Known also as Thomisus 

 citreus, Blackwall. 



Diaea devoniensis, O. P.-Cambndge. 

 Torquay (Hamlet Clark ; O. P.-C). 

 A single immature female taken many years ago. 



27. Diaea dorsata, Fabricius. 



Bickleigh ; Shaugh (G. C.-B). 

 A bright green spider with a large dull red-brown 

 central patch on the abdomen ; not uncommon on 

 herbage and amongst flowers. Known also as Thomisus 

 floricolens, Blackwall. 



28. Tibellus oblongus, Walckenaer. 

 Woolacombe (T. R. R. S.). 



A long, very narrow, dull white or straw-coloured 

 spider, often common amongst dry grass in many 

 different localities. They attain, however, their 

 largest size amongst the sedge grass and rushes in 

 swamps and bogs. The elongate form assists in their 

 concealment from foes as they squat close to the pale 

 rush stems and slender dry blades. Known also as 

 Philodromus or Thanatus oblongus. 



29. Oxyptila sanctuaria, O. P.-Cambridge. 

 Mount Batten, Plymouth (G. C. B.). 



A very rare and minute species. 



SALTICIDAE 



The spiders of this family may be recognized in 32 

 a general way by their mode of progression, con- 

 sisting of a series of leaps, often many times their 

 own length. More particularly they may be known 

 by the square shape of the cephalic region, and the 

 fact that the eyes are arranged in three rows of 4, 2, 2, 

 the centrals of the anterior row being much the 

 largest and usually iridescent. Those of the second 

 row are the smallest, while the posterior pair is 

 placed well back and helps to give the quadrate 

 character to the carapace. Otherwise these spiders 

 are simply specialized Clubionids, with two tarsal 

 claws and other minor characters possessed in common 

 with members of this latter family. 



They can be beaten from foliage or found amongst 

 herbage or under stones. The commonest, Salticus 

 scenicus, will be well known to all observers, running and 

 leaping on the walls of houses in the bright sunshine. 



30. Salticus cingulatus. Panzer. 



(O. P.-C.) 

 Known also as Epiblemum cingulatum. 



31. Salticus scenicus, Clerck. 

 Langstone ; Exeter (G. C. B.) ; Salcombe 



(T. R. R. S.). 38 



A black species with white lateral stripes. Known 

 also under Epiblemum and Calliethera. 



Euophrys frontalis, Walckenaer. 

 Salcombe (T. R. R. S.) ; Exeter (O. P.- 

 Known also under Salticus. 



-C). 



33. Euophrys petrensiSjCL. Koch. 

 Bickleigh (G. C. B). 



34. Ergane falcata, Clerck. 

 Bickleigh ; Langstone ; Clearbrook (G. C. B.). 



Common amongst dry leaves in woods. Known 

 also as Salticus or Hasarius falcatus. 



35. Heliophanus cupreus, Walckenaer. 

 Bickleigh (G. C. B.) ; Salcombe (T. R. R. S.). 



A shining black and coppery spider, found in some 

 abundance on the coast. Known also under Salticus. 



36. Heliophanus flavipes, C. L. Koch. 

 Salcombe (T. R. R. S.). 



37. Attus saltator, Simon. 

 Woolacombe (T. R. R. S.). 



Known also as Salticus floricola, C. L. Koch — 

 Blackwall. 



Attus pubescens, Fabricius. 

 (O. P.-C.) 

 Known also as Salticus sparsus, Blackwall. 



PISAURIDAE 



Spiders with eight eyes in three rows of 4, z, 2, 

 the small anterior eyes being sometimes in a straight 

 line, sometimes recurved, and sometimes procurved. 

 Those of the other two rows are situated in the form 

 of a rectangle, and are much larger than the eyes of 

 the anterior row. The tarsal claws are three in 

 number. 



Pisaura runs freely over the herbage, carrying its 

 egg-sac beneath the sternum, while Dolomedes (an 

 allied genus) is a dweller in marshes and swamps. 



39. Pisaura mirabilis, Clerck. 



Exeter (O. P.-C.) ; Salcombe (T. R. R. S.). 

 Known also a Dolomedes or Ocyale mirabilis. 



247 



