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CALIGULA HtBR. SAL3I0yi, A NEW HYBRID OF 

 SATUEXIIBAK 



By J. HKNRY WATSON. 



IN tlie Ti-dDsactions of the MuDcL'stei- Ento^iwloijintl Socirt;/, lOlD, I called 

 iittentiou to the ova obtained by Mr. Salmon from a pairing between C.jnjionica 6 

 awl C. Simla ?, both moths having been reared on hawthorn. At the same time I 

 nienlioMod that, the larvae of the two species were very similar, e.xcept tiiat C ."///da 

 went lighter in colour one stage in advance of C. Jajwnica. 



(alit/ttlu hyljl". saliiumi. 



Very few of the ova laid hatched out — about eight only — and of these larvae 

 bat four spun up, two being reared by Mr. Salmon and two by myself. Tlie 

 larvae were undistinguishable from jaj/o///ca or si/id/t, and were fed ou hawthorn. 

 One ? emerged August 7, 1911, and another in Mr. Salmon's possession on 

 August 2-1. 



It is interesting to note that both sj)ecimeus were unfertile. I have one cf 

 pui)a which api)ears to be deferring its emergence till next year. One larva of 

 Jlr. Salmon's died in cocoon. 1 dissected the first ? hatched ; its soft flaccid liody 

 told me there were no ova in the body, and this was verified on dissection. There 



