640 DESCRIPTIONS OF PLATES. 



the two posterior of which again furcate, b b, The anterior processes, a a, The 

 posterior with their furcate branches **. 



[No. 3,] Portions of the skeleton of Buprestis mariana. Fig. 1 , Prothorax 

 from beneath. A A, Reflexed margin of the pronotum. B, Prosternum. 

 b b, The small round plates which correspond to the anterior wings of the 

 scapula in Carabus and Dyticus. Fig. 2, The same from the front, a a, The 

 jugularia which lies in the membrane of the neck. Fig. 3, Prosternum from 

 the side. The internal processes are small, and stand forwards, g, The same 

 from within, a a, these processes. Fig. 4, Upper view of the meso- and 

 metathorax. Fig. 5, The same from beneath. Fig. 6 8, Mesosternum and 

 scapulae in their natural situation, b, Mesosternum (E E). Fig. 7, Anterior 

 wings of the scapula? (D D). Fig. 10, Metathorax from within to exhibit the 

 quadridentate process, b b, The anterior teeth, a a, The posterior. Fig. 11, 

 The same from the side. Fig. 12, Meso- and metathorax of Hister cadaverinus 

 seen from beneath. S, First abdominal segment. Fig. 13, The same from 

 above. 



PI. X. [No. 1,] Fig. 1, Parts of the skeleton of Geotnqws nasicornis. Fig. 1, 

 Pronotum from beneath, the prosternum is removed, a a, The reflexed margin. 

 Fig. 2, Prosternum from beneath. Fig. 3, The same from the side, a, The 

 internal processes. Fig. 4, Meso- and metathorax from above. Fig. 5, Meso- 

 sternum with the scapulae. E, Mesosternum. D D, Ala anterior scapula). 

 D* D*, Ejusd. ala posterior. Fig. 6, Meso- and metathorax from below. 

 Meso- and metasternum are here connate. Fig. 7, Mesosternum from within. 

 a a a, The three points of the processus internus. Fig. 8, The internal process 

 from the side, a a a, The three points. [No. 2j Skeleton of Cctonia aurata. 

 Fig. 1 , Meso- and metathorax from above. Fig. 2, The same from beneath. 

 Fig. 3, Prosternum and scapulae seen from the front. Fig. 4, The connate 

 sternum from within. a a, Proc. intern, mesosterni. b, Proc. intern, metast., 

 each consisting of two divaricating lamellae, between which the nervous cord 

 lies. [No. 3,] Skeleton of Hydrophilus piceus. Fig. 1, Pronotum from beneath. 

 Fig. 2, Prosternum ditto. Fig. 3, Mesonotum from above (the letter G is here 

 wrong). Fig. 4, Metanotum from above. Fig. 5, Sternum from without. 

 Fig. 0, The same from within. a, The internal processes of the mesosteruum 

 which ascend to the scapulae, b b, Wings of the processus internus metasterni. 

 Fig. 7, The same from the side, a a, The pro. int. mesost. ascending as far as 

 the scapulae, b b, Both wings of the processus internus metast. d, This process 

 itself, e, A thin horny lamella which lies beneath the proc. g, An externally 

 visible aperture which indicates the point of division between the two parts of 

 the connate sternum. Fig. 8, Parapleurae from the inner surface, with the 

 tendon of the large extensor of the wing, a, The plate-shaped distension. 



