Mr. H. S. Bagnall on new Thysanoptera. 253 



EXPLANATION OF THE PLATES. 



Plate II. 



Fiy. 1. Psechrus torvus inverted below web, which here crosses a dry 



mountain torrent. X yV 

 Fiy. 2. Pgeckrus torvus web edge on, to show the tubular retreat deuied 



by Simon, also its slightly arched nature. 



PLA.TE III. 



Fit/. 3. Argiope anasuja; young- resting on lacework stabilimentum. 



X 1. 

 Fig, 4, Argiope anasuja ; web with full x stabilimentum on Opuntia. 



A 4. 



Plate IV. 



Fiy. 5. Argiope anasuja; stabilimentum with only one stroke of X, 



spider rolling - up a fly. X 3. 

 Fig. 6. Cyrtophora cicatrosa within domed web. x h. 



Plate V. 



Fig. 7. Cyclosa sp. ? (Ceylon) with stabilimentum as diameter (broken) 



bearing spider aud cocoons. Web against aloe-leaf. 

 Fig. 8. Araueus nauticus resting by day on bark of a cypress-tree, x 3. 



Plate VI. 



Fig. 9. (Ediynatha retusa ; turret at mouth of burrow, x 1. 

 Fiy. 10. Nilgiri Barychelid ; turret at mouth of burrow, x 5. 

 Fiy. 11. Ayelena inda ; web on aloe-bush, showing cocoon-case within. 



[All the Plates are from photographs taken by the Author.] 



XXV. — Brief Descriptions of new Thysanoptera. — X.* 

 I3j Richard 8. Bagnall, F.L.S. 



Suborder T E R E B it A N T I A. 



Family JEolothripidse. 

 jdEolothrips fulvicollis, sp. n. 



? . — This species very closely resembles the common 

 holarctic species A. fasciatus, L. The following differences 

 are evident in the material at my disposal : — 



The pronotum, instead of being of the same colour as the 

 head and body, is much lighter, being of a yellow to 

 yellowish-brown colour. The fore-legs are only present in 



* Continued from Ann. & Mag. Nat. Hist. ser. 9, vol. i. p. 221 (1918). 

 Ann. (£• Mag. N. Hist. Ser, 9. Vol. iv. 19 



