EXPLANATION OF PLATES. jj^ 



" ^- ^"^^^^^, insertion of raalpighian vessels (d.) in a male of 

 Rectum*''^*' ''' ^"°'^^°"'^- ^- ^mall intestine, c. 

 „ J>, 10, 11. Reproductive system in PA/«o<Anm, ^. 6" Testes 

 i'. Deferentia. c Vesicul^ pares, d, e\esicu]^lt 

 .^ rr^P "^^^^ . ^' *^triculus prae canali excretorio. 

 „ 12. J he ovaries of P. Statices, $. 



" 1^ Unfertilized ovary in $ newly transformed P. Pini. 



„ 14. i^nd ot one of the egg-sheaths. 



„ 15. Full-grown eg^. 



„ 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). 



" '^^' ^^'doubtfuVr ^^^^''^''^ receptacles of one side.? (Very 



" ^?' Tip of haustellum, in situ. PhlcBothrips. 



„ 24. End of labrum. ^^ 



„ 25. End of maxillary palpus. 



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

 membranous lining of labrum. ^"uuie 



„ 27. Labrum. 



„ 28. Labium. 



„ 29. Mandibles. 



„ 30. Maxilla of Idolothrips. 



" ol' ?r°^ of mouth, with emerging mandibles. 



„ 6Z. Mandible or tongue. 



„ 33. Mouth of Phlceothrips Pini, larva 



„ 34. Horny spots at base of do. 



