VARIETIES. 211 



elytra are very delicately striated ; the space between the se- 

 cond, third, and fourth striae is wider than in the following. 



Common in the neighbourhood of London. I have also 

 received it from Inverness, where it appears to be rare. 



Sp. 17. Not. substriatus. Angustior ,ceneo-7iiger : fronte striata, 

 thorace longiori, postice valdt attenuato, dense, et Icevis- 

 simepunctato, disco Icsvi, stilco dorsali transverse rugato : 

 elytris, striis quinque Icevissime punctatis, aplcibus pallidis, 

 tibiis antennarumque basi rufo-jjiceis. (Long. corp. 2g.) 



Narrow brassy black : head as wide as the thorax, the frontal sulci 

 not very deep : thorax rather long, considerably narrowed behind, 

 the margins very delicately, but thickly punctured, the disk indis- 

 tinctly wrinkled : elytra with six very delicately impressed punc- 

 tate striee, one next the suture, and five on the disk, of which the 

 third and fourth are close together : apex pale, pitchy-testaceous : 

 base of the tibia; and antennae the same. 



Allied to higuttatus, but rather smaller, and more elongate ; 

 the thorax is narrower and more attenuated behind ; the elytra 

 are more delicately striated. 



Halifax ; A. H. Davis, Esq. 



Sp. 18. Not. Quadripunctatus. Supra ceneus, nitidus ; fronte 



profundi striata ; elytris profunde punctato-striatis, plagd 



longitudinali nitidissima ad stituram, apice flavescentibus, 



punctisque duobus impressis. (Long. corp. 2 — 2^.) 



Not. Quadripunctatus, De Jean. Sp. Col. 2. 280. 3. 



Very much resembles N. higuttatus, but differs in having 



two rather deep punctures between the third and fourth 



striag, and a little above the middle of the elytra, higuttatus 



having only one. — ( Translated from De Jean s Description. ) 



Art. XX IL — Varieties. 



(Co7iii7medfromp.93.) 



14. Insensibility in Insects. — Sir, In 1828, I reared seve- 

 ral Gypsy moths from the caterpillars : as fast as the moths 

 appeared, I pinned them on a setting -board: some of the 

 males however got loose with the pins still in them, and joined 



