270 



THE ENTOMOLOGIST. 



Gueiieei is generally recognized as a form of L. tcstacea, but 

 it might equally well be set down as a form of L. nickerlii. The 

 Lancashire specimens, in fact, certainly seem to connect gueneei 

 with nickerlii, and until it can be shown that these two can be 

 separated one from the other, and from the Lancashire Luperina 

 on structural differences in genitaha, I am inchned to accept all 

 three as forms of one species. 



If it should subsequently be established that Mr. Baxter's 

 Luperina is specifically distinct from both nickerlii and gueneei, 

 then it will have to be known as L. inccrta, Tutt, and I propose 

 to name the paler greyish specimens taken this year ab. haxtcri. 



Some figures of the moths are being prepared, and these, 

 together with drawings of Mr. Pierce's preparations of the geni- 

 talia, will be published in the 'Entomologist ' for December. 



THE OKDERS OF INSECTA. 



By D. Sharp, M.A., M.B., F.R.S., &c. 



The question of the number of Orders that should be adopted 

 in the Class Insecta has been much discussed, and a considerable 

 variety of views expressed about it. The subject has just been 

 treated by Handlirsch in his great work on Fossil Insects, and 

 it will no doubt be of interest to enumerate the Orders he adopts 

 for existing insects. They amount to no fewer than thirty- 

 five, viz. : — 



1 



2 



3 



4 



5 



6 



Arthropleona. 



Symphypleona. 



Dicellura. 



Rhabdura. 



Machiloidea. 



Lepismoidea. 



7. Gastrotheoidea. 



8. Orthoptera. 



9. Phasmoidea. 



10. Dermaptera. 



11. Diploglossata. 



13. Mantoidea. 



14. Blattoidea. 



15. Isoptera. 



16. Corrodentia. 



17. Mallophaga. 



18. Siphunculata. 



19. Hymenoptera. 



20. Coleoptera. 



21. Strepsiptera. 



22. Embioidea. 



23. Perlaria. 



24. Odonata. 



25 

 26 



27 

 28 

 29 



Plectoptera. 



Megaloptera. 



Piaphidioidea. 



Neuroptera. 



Panorpatae. 



30. Phryganoidea. 



31. Lepidoptera. 



32. Diptera. 



33. Suctoria. 



34. Hemiptera. 



35. Homoptera. 



12. Thysanoptera. 



A few words of explanation and comment may be acceptable 

 about this very formidable list. Nos. 1 and 2 are the two great 

 divisions of the old Order Collembola ; 3 and 4 are the Campodeid 

 forms, Japyx, Campodea, &c. ; 5, 6, and 7 are divisions of Thysa- 

 nura (7 being altogether doubtful), the old name Thysanura being 

 still used by Handlirsch as that of a " Class " composed of these 

 three Orders ; 8, Handlirsch limits the Orthoptera to the old 

 Saltatoria, treating each of the other great divisions (n'^. 9, 10, 

 11, 13, and 14 of our list) as a separate Order, and interpolating 



