of some Coleopterous Larve, Sfc. 39 



chocolate-coloured mud. We never found them under the bark, 

 which was an asylum, however, for another interesting beetle, the 

 Dnjophthorus Lymexijlon, and amongst the dead leaves at the 

 base of the tree was secreted the beautiful Carabus splendenx. 

 The capture of these insects adds to my pleasing recollections of 

 a winter at Pau, where I could enjoy my favourite pursuits, even 

 in the depth of winter and early spring, owing to the mildness of 

 the climate and the splendid sun ; and my rambles were rendered 

 agreeable and profitable by the society of scientific friends, espe- 

 cially of Mr. Charles Delaronzee, a most zealous Entomologist and 

 intelligent young man, to whom I am indebted for a knowledge of 

 the Prostomis and its economy. He has since been elected into 

 the Entomological Society of Paris, to become a valuable member 

 of that excellent institution, and, I doubt not, he will be an honour 

 to his country, 



I will close this notice by stating, that when I had the pleasure 

 of visiting M. Leon Dufour, at St. Sever, in the spring of last 

 year, amongst many other interesting objects, he showed me some 

 aquatic larvee which had been alive two yeai's, specimens of which 

 I now exhibit. He had never succeeded in rearing them, nor had 

 he any idea of their origin, beyond taking them from a brook upon 

 some stones. Having attentively studied them, I am inclined to 

 believe they are the larvae o? Hclophorus granulans, Linn. I hope 

 my estimable friend will eventually succeed in obtaining the 

 beetles, and will add their history to the numerous and valuable 

 discoveries he has made in insect economy. 



EXPLANATION OF PLATE V. 



Fig. 1. Larva of Velleius dilatatus, Fab.; * natural length. 



Fig. 2. Underside of head; 2 o, the antennae. 



Fig. 3. The clypeus. 



Fig. 4. A mandible. 



F'ig. 5. Maxillary palpus. 



Fig. 6. Mentum, labium and palpi. 



Fig. 7. Apex of abdomen ; 7 a, theproleg; 7 6, the styles. 



Fig. 8. A leg; 8a, the coxae; 8 6, trochanter; 8c, femur; 8 d, tibis ; 



8 e, the claw. 

 Fig. 9. Larva of Athons rhombeus, Oliv. 

 Fig. 10. Upper side of head; 10a, mandibles; 10c, apex of maxillae and 



palpi; lOd, labium and palpi; lOe, antennae. 

 Fig. 11. Apical segment of abdomen ; upper side. 

 Fig. 12. The same, in profile ; 12 a, the proleg. 



