Rothscbild. — NEW STEPHAKOCIUCUS 
181 
A NEW SPECIES OF STEPHÁN0C1RCUS FROM CHILE 
BY THE 
HON. N. C. ROTHSCHILD, M. A., F. L. S. 
Stephanocircus Wolffsohni, spec. nov. 
Head: — The helmet resembles that cf the three known 
American Stephanocircus^ but is narrow, and bears a comb 
of but 11 or 12 spines. The central spines of this comb are 
rounded at their tip, the seventh spine from beneath being 
the longest, the width of the helmet measured from the 
base of this spine equalling the length of that spine. 
There is a comb of five genal spines, the uppermost spine 
being narrow. The first segment of the maxillary palpus 
is but little longer than the second. The rostrum nearly 
reaches to the apex of the fore coxa. The first segment 
of the antenna is less than twice as long as it is broad, 
the second segment also being shorter than in the other 
American species. 
Thorax: — The pronotum has a comb of 15 pointed spi- 
nes. The dorsal bristles in the posterior row of the meso- 
and metanotum are somewhat longer than the lateral ones 
