516 



MKKISTH VARIATION. 



[PART i. 



ally a j>"ir of dubs, a right and a left, compounded together. 



Tin- hi.-tol.i-y i.f tin' -upenimnerary lamelke is just the same as 





8 7 6 



Fin. 171. Geotrupet ti/i>)m-tn;. No. 794. Left antenna bearing a compounded 

 f i-lnli-i. ml, mr, morphological left and right of the extra parts. (The 

 property of Di Ki.mt/.i 



that nf tin- imnnal lamella-, all being covered with pubescence. 

 Tin- form of the compound eleventh joint is somewhat irregular. 

 The extra parts are in the Position A of the Scheme. Specimen 

 kindlv lent l.\ hi KIJAATX, and first described and figured by 

 him in Deut. ent. Zt., I.SSD, xxxin. p. 221, fig. 13. 



7!i.">. Melolontha hippocastani ^ having supernumerary parts of 

 double structure upon both the right and the left antenna. 



///;//// Antenna. Third joint elongated, thickened and pre- 

 -'ntin- t\\i articular surfaces; of these one is terminal and hear- 

 a normal antenna IT club, while the other is dorsal and bears a 

 >u|ierniinieraiT double club. This structure has the form shewn 

 in tin- drawings. Fig. 17-"), A, shews its appearance when looked 

 at t'rnni abnve, B shews the structure when seen from below and 

 externally. It consists of seven pieces shaped like half-funnels, 

 tit ted into each other. 



c. 



3 (bearing 

 normal riant i 

 Clubf y 1 



Km. 17-''. Mflnloiitliii lii]>]><><-ii*t<nii. No. 795. D, view of tlie whole head and 

 ant. IIII.T :ifii r vos Hi M'i N. C. view of right antenna. B, detail of right antenna 

 from below. A, detail of the same from above. 



