.Mi:i;l>TK' VARIATION. [I-ART i. 



in tin- position ni.-irk.'d \' in the Scheme and having precisely 

 ill.- r.-lation> tli.-]-.- shewn. Sji.-eimen first described by KRAATZ, 

 (i.. /;.//. ent. //.. L873, \>. 4:! ti- 9. I am greatly indebted in 

 I i Kraal/. t'r an opportunity of examining it. 



7:}7. Carabus marginalis : penultimate joint of left hind tarsus is en- 

 larged .-mil pre-eiit- two articular surfaces, a proximal one on the 

 \enir.-d -urfac... and another at tin- apex. The latter bears the normal 

 last joint with it-cla\\-. 1'Yom the proximal art i.-ular surface arises a 

 thick joint .shorter than the normal last joint, hearing at its apex ttm 

 li,i'n* of ( -la\\ - Bel l-a.-k to bark, as in the Position V. .Specimen recle- 

 scril.ed from KI;A ATX. <;.. l>> "t. ''lit. Zt., 1880, xxiv. p. 344, PI. n. tig. -'.'. 



7:;^ Carabus granulatus ,-/. l.-t't posterior tibia bearing an amor 

 phous rudiment nt' two extra tarsi arising from the ventral surface of 

 its apex. Tin- ap.-\ of the tiljia is produced at the dorsal border to 

 tonn an irregular process which bears a tarsus of normal form but 

 reduced si/e and immediately ventral to this tarsus is a pair of til>i;d 

 -pur.-. N'eiitral t.. the-c spurs is another deformed pair of spurs and 

 IH-|OW them aLcain is a deformed ,'5-jointecl rudiment which probably 

 i -,.|,i -,. -ents two tarsi. Ventral to the rudiment of the extra tarsi is 

 a third deformed pair of -purs. It was not possible to recognize the 

 .surface- of the tarsal rudiment, but the presence of two extra pairs of 

 spurs indicates plainly that the extra parts are morphologically of double 

 structure: and as the spurs indicate the morphologically ventral sur- 

 faces, it follows that the surfaces adjacent in the extra tarsi are 

 ilm-sitl. This specimen was originally described by Dr L. Vox HEYDEX, 

 who was so good as to lend it to me for examination, see Deut. enf. Zi., 



li^Sl. XXV. p. 11 II. _//,/. I'll. 



739. Prionus coriarius (Longicorn): three legs in region of right 

 posterior leg. The proximal relations not quite clear and hence it is 

 not easy to di-tin-ui-h the normal. Presumably it was the most dorsal. 

 This leg was of normal form but of reduced size and it wanted the 

 claw-joint. Internal to it, arising by a double coxa, trochanter and 

 f.-mur, were the other two le--. The remoter was a normal right, but 

 the nearer was a left leg of reduced size, slightly crooked and lacking 

 three apical tarsal joints. The compound femur was just as in No. ""><'>. 

 The normal leg must either have been the most dorsal or the most 

 ventral. If the former, th" extra parts are in the Position V; if the 

 latter, they are in the Position 1), but in this event the normal would 

 be compounded with one of the extra legs. [Kedescribed from descrip- 

 tion and figure gi\ en liy KI;\I 8E, Sitzb. inif. Fr. Bert., 1888, p. 14">. //'//.] 



74-0. Melolontha vulgaris ? (Lamellicorn) : right posterior femur bears a suj)fi-- 

 mimrniry pair of limbs having a double tibia in common. The supernumerary 

 part- an- nitln-r smaller than the normal ones. [The position of origin and 

 symmetry, according to tin- tigure, must have been approximately V.] KOI.KE, H. 



.1., Xiilunr. }l'iii-li<'iix., Isv.i, p.. p. It', 1 .), ti^r. 



74], Carabus perforatus - : from thr ventral or plantar surface of the 5th tarsal 

 joint of Irt't hind leg project an extra pair of claw-joints compounded in Position V. 

 ca.-li braiing a pair ..f daws, set back to back. This is a diagrammatic case, well 

 and clearly d.-sciili.-d by aSHUBS, .!/'/<>//. (',,/,,.;<., 1835, p. 54, Tab. IX. 



