The genus Serrocerus of Kugellan was originally formed I 

 believe to contain Dorcatoma, as well as the species at present 

 under consideration ; and as it was established nearly 40 years 

 since in Schneider's Magazine, I have restored his name, which 

 alludes to the serrated antennas. 



Since my "Guide " was published, I find that it is the first, 

 and not the second species, that I possess. 



1. S. pectinatus Fab. — Curt. Brit. Ent. pi. 375. var. — Pariz. 6. 



9. — striatus Kug. P — rufipes Mars. 62. 5. var. 



I have seen specimens smaller, and others larger, than the 

 outline figured in the plate. The coloured one is a variety, for 

 the elytra are generally of an uniform pitchy black. Sometimes 

 3 or more of the basal joints of the antennae are rufous, and 

 the thighs are occasionally dusky. 



It inhabits old wood, especially oak. I took one on some 

 paling at North Mimms, Hertfordshire, in which county I be- 

 lieve it is not uncommon ; and Mr. Marshall found it in some 

 abundance in the decayed parts of large old posts near Bridge- 

 north in Shropshire, the beginning of last June. 



I doubt whether the true P. serratus of Fabricius has been 

 discovered in England: at first I thought it might be the male 

 of the above insect ; but Mr. Marshall having taken both sexes, 

 he decided that point. I have never seen a British specimen 

 of the Fabrician P. serratus^ which is probably not the 35. 9. of 

 Panzer, for Fabricius says his insect is smaller than P. Dor- 

 catoma {Dorcatoma Dresdensis\ and I shall give his charac- 

 ters that the student may judge for himself. 



2. S. serratus Fab. Supp. 73. 5. — ater or serratus Panz. 35. 9 ? 

 " BlacJc, elytra striated. Smaller than the preceding (P. Dor- 

 catoma). Head inflexed. AntenncE very much serrated, very 



Jlabellate, black. Thorax smooth, with the margin deflexed.'* 

 Fab. 



The rufous tibiae and tarsi of Marsham's D. riifipes, the 

 length of which is 1^ line, and even the name intimates that it is 

 not the same species as the P. ater or serratns. His descrip- 

 tion was no doubt taken from a variety of P. pectinatus, with 

 the thighs and antennae fuscous, the base of the latter, the legs 

 and feet rufous. 



In the early editions of Panzer his fig. 35. 9. is named P. 

 ater, but he has since altered it to serratus : it is better there- 

 fore to adopt the Fabrician names, considering the doubt which 

 is attached to Panzer's figure. 



The Plant is Viburnum Lantana (Way-faring Tree). 



