Laelaps agilis Koch. Yen-an f'u, Shensi. 



Several specimens taken from Mus confucianus luticolor, a rat 

 related to the common sewer rat, on which Laelaps agilis usually 

 occurs. These specimens cannot be separated from the above 

 species, though in some respects they differ slightly. 



Lepidoptera and Neuroptera. 



By A. DE C. SOWERBY. 



1. Mycalesis gotama. Several specimens. Very common, especially on loess 



hill tops. 



2. Mycalesis sericus. Several specimens. Also very common. 



3. Lethe rohria. Several specimens. Common. 



4. Athyma sulpitia. Two specimens. Very rare. Found only amongst bushes 



on hill side. 



5. Callerebia phyllis. Common in loess gullies near Yen-an Fu, Shensi. 



6. Melanargia halimede var. montana. Rare. 



7. Pararge deidamia. Very common everywhere. 



8. Apatura here. Common only in valley-bottoms near Yen-an Fu, Shensi. 



9. Argynnis aglaia. Not very common. 



10. Grapta c. aureum, var pryeri. Common. 



11. Chrysophanus dispar ? and $ . Very common. Recorded from Kansu by 



Potanine. 



12. Lycaena argus ? and S • Common everywhere. 



13. Sericinus telamon. var. telamon. Very common in certain valleys of Eastern 



Kansu. 



14. Sericinus telamon, var. greyi. Less common. Inhabits same district as 13. 



15. Colias hyale. Very common everywhere. 



16. Papilio machaon. Comparatively common. A few specimens caught in 



well watered valleys. 



17. Gonepteryx rhamni. A yellow leaf-like butterfly. Fairly common in valleys. 



18. Leucophasia sinapis, var. sinensis. Rare. Very few specimens seen, 

 ig. Pieris cisseis. Very common. 



Amongst the commonest of the dragonflies which were collected were 

 various species belonging to the genus' Matrona. These beautiful insects, as 

 stated elsewhere,* abounded in the watery valleys of Eastern Kansu. 



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