EXPLANATION OF PLATES. ix 



Fig. 7. Position of the recliim, with relation to the terminal 



segments. P. Staliccs. 

 „ 8. Inflated insertion of malpighian vessels (d) in a male of 



P. Statiees. a. Duodenum, b. Small intestine, c. 



Rectum. 

 „ i), 10, 1 1 . Reproductive system in PA/^oMri/).?, $. b". Testes. 



b'. Deferentia. c. Vesiculae pares. d,e. Vesiculte im- 



pares. a. Utriculus pra canali excrelorio. 

 „ 12. The ovaries of P. Slatices, $ . 



„ 13. Unfertilized ovary in 9 newly transformed P. Pint. 

 „ 14. End of one of the egg-sheaths. 

 „ 15. Full-giown egg. 

 „ 16. Do. in another stage? 

 „ 17. Mouth with a salivary receptacle.' in situ. P. Pini. 



a. labrum. c. maxilla. 

 „ 18. Excretory canal of saliva glands ? 

 „ 19. The saliva gland .? 

 „ 20. The pair, (see fig. 16 of plate 7). 

 „ 21, 22. The two salivary receptacles of one side' (Very 



doubtful). -^ 



„ 23. Tip of haustellum, in situ. Phlaothrips. 

 „ 24. End of labrum. 

 „ 25. End of maxillary palpus. 

 „ 26. The labrum and maxilla in juxtaposition, y. Double 



membranous lining of labrum. 

 „ 27. Labrum. 

 „ 28. Labium. 

 „ 29. Mandibles. 

 „ 30. Maxilla of Idololhrips. 

 „ 31 . End of mouth, with emerging mandibles. 

 „ 32. Mandible or tongue. 

 „ 33. Mouth of Phlaothrips Pini, larva. 

 „ 34. Horny spots at base of do. 



