NEW BRITISH SPECIES NOTICED IN 1859. 117 



Lacord. Monog. des Coleopt. subpentam. d. 1. Fam. 



des Phytophages, i. 138, 24 (1845) ; Steph. Illustr. 

 , Brit. Ent. Mand. iv. 272, 10 (1831), Man. Brit. Col. 



282, 2205 (1839), but not of his collection ; Redtenb. 



Faun. Austr. Ed. ii. 881 (1858). 

 Very nearly allied to D. Lemnce, from which it differs in 

 its more sombre colouring, in having the prothorax trans- 

 verse, the anterior angles more pronounced and slightly 

 reflexed and without tubercles, and the base of the elytra, 

 from the humerus to within a short distance of the suture, 

 thickly strewn with punctures. 



Taken near Glasgow by Mr. Constantine. 

 35. Symbiotes latus, Redtenb. ; Waterhouse, Proc. Ent. 



Soc. 3 January, 1859, Zool. 6391 (1859); E. W. 



Janson, ibid, and Proc. Ent. Soc. 7 February, 1859, 



Zool. 6470 (1859). 

 Symbiotes latus, Redtenb. Faun. Austr. Ed. i. 198 



(1849, Ed. ii. 371 (1857) ; Gerstaeck, Mon. Endom. 



400, 1. (1858). 

 The most obvious difference between the genera Symbiotes 

 and Mycetaea is in the proportions of the ninth joint, or 

 first articulation of the club, of the antennas, which in Sym- 

 biotes, is fully thrice the width of the preceding (8th), 

 Avhereas in Mycetcea, it exceeds it by one-half only ; more 

 recondite distinctions exist in the form of the labium, max- 

 illa?, and terminal joints of the palpi, on which, having already 

 elsewhere pointed them out, I will not here again enter. 



The present insect, when viewed cursorily, bears so great a 

 resemblance to Mycetcea hirta, that it may possibly be con- 

 founded with it in some of our collections ; its superior size 

 and more parallel elytra, however, could scarcely escape 

 notice, and lead to its detection. 



