( eet. 7) 
AntTenn&-Jornts in Tracuysceris——Mr. H. J. Carrer 
showed a microscopic slide prepared to demonstrate that the 
antenne of the genus 77vachyscelis have eleven joints, and not 
ten as hitherto described. 
Mr. Carter having made some further observations, also 
contributed the following note :— 
ON THE AUSTRALIAN SPECIES OF TRACHYSCELIS. 
“In a late microscopic observation of the antenne of 7’ nigra, 
mihi, I noticed a marked discrepancy from Pascoe’s tabulation 
of the species (Ann. and Mag., v, 1870, p. 95). In that table, 
Trachyscelis is differentiated from the other genera of the 
tribe by the main distinction ‘ ten-jointed antennx.’ More- 
over, in a footnote, Pascoe refers to Du Val as the ‘only author 
oo 
pa. 
Antenna of Trachyscelis nigra, Carter. 
who has given the correct number of antennal joints’ (Gen. 
Col. d’Europe, ili, p. 288.) In reference to his figure (Pl. vii, 
fig. 352b) I have failed to detect the moniliform structure of 
the club, and the basal joint is much larger and curved almost 
ata right angle. It must be recollected however that the 
whole antenna is not larger than the point of a fine needle. . 
M. Du Val himself says, ‘ Nos auteurs récents, et M. Mulsant 
lui-méme, donnent tous onze articles aux antennes des 
Trachyscelis, mais ils ne peuvent avoir contrélé ce nombre avec 
soin, car les antennes en question n’offrent évidemment que dix 
articles distincts et articulés. M. Emile Blanchard (Regne An. 
de Cuvier, Edit. Masson, i, pl. 50, p. 4) a fait mieux. Dans le 
dessein du reste en tout trés mauvais, quil a donné de 
Vantenne du 7’. aphodioides, il a répresenté la massue comme 
offrant six articles.’ On referring to Latreille, the founder of 
