1889. 279 



2 (1) 3rd and 4th joints of antenna black. 



3 (6) let and 2nd joints of antenna? entirely yellow. 



4 (5) Mesosternum in the $ with two long curved horns in front, in the ? with 



a pair of small tubercles. Membrane generally incomplete . . 



2. affinis, Schill. 



podagricus, Thorns. 



5 (4) Mesosternum simple in both sexes. Membrane generally complete... 



3. adjunctus, D. & S. 



decoratus, Thorns. 

 Thomsoni, Reut. 



6 (3) 1st and 2nd joints of antennse not entirely yellow. 



7 (8, 9) 1st and 2nd joints of antennse yellow, the former black at the base (at least 



on the under-side), the latter with a well-defined black ring at the 

 apex. Prosternum in front with a shallow diffuse punctuation. Meso- 

 sternum simple in both sexes. Membrane generally incomplete... 



4. neglectus, n. s. 



affinis, Leth. p. 



8 (7, 9) 1st joint of antennse yellow-red, frequently suffused with brown, 2nd joint 



black or blackish, its basal third or half yellow-red, the limits of each 

 colour not sharply defined. Prosternum in front closely and deeply 

 punctured. ' Mesosternum in the $ with two long curved horns in 

 front, in the ? with a pair of small tubercles. Development of the 



membrane various 5. punctatus, n. s. 



affinis, Leth. p. 



9 (8, 7) Antennse black, the 2nd joint very narrowly yellow at the base. Meso- 



sternum simple in both sexes. Membrane always complete... 



6. decoratus, Halm. 

 ericetorum, Leth. 



In the matter of nomenclature I have followed the 3rd edition of 

 Dr. Puton's Catalogue. 



No. 1 is a rare species, arid its specific distinctness seems to be 

 regarded as less questionable than that of the others. Examples of 

 No. 2 sometimes occur in which the 3rd and 4th joints of the antennse 

 are yellow-brown instead of black, and these have been mistaken for 

 pictus, from which they may be separated by the presence of the 

 mesosternal horns ; such examples, however, which are possibly the 

 result of immaturity, are not of sufficiently common occurrence to 

 invalidate the antennal characters laid down in the foregoing table. 

 A similar colour variety of No. 3 would present greater difficulty, but 

 I think that the exceptionally slender unicolorous antenna? of the true 

 pictus would serve to distinguish it. 



No. 2 is common by general sweeping. I have seen but one spe- 

 cimen with the membrane complete, this is a female in coll. Saunders. 



No. 3 I introduce on the strength of Mr. Douglas' statement 



