230 Mr. W. F. Kirby on Species of Phasmid 
Promachus spinosus, sp. 0. 
Long. corp. 91 millim. 
Female.—Reddish brown; antenne darker, about as long 
as the head and thorax ; head fully as long as the prothorax ; 
a groove on the hinder half, curving off into two shallower 
depressions in front to the base of the antenne; the head is 
covered with short spines or warts above, and there is a broad 
slightly dentated spine on each side about the middle; pro- 
thorax with two broad slightly diverging spines on an eleva- 
tion in front and a strong ridge with a bifid elevation in the 
middle behind ; there is also a row of three broad spines on 
each side and some smaller ones; the hindermost is twice as 
long as the others and dentated; mesothorax with a large 
elevation at one third of its length, in front of which are three 
diverging carine; behind this is a strong carina rising into a 
transverse ridge behind, the middle of which is occupied by 
another bifid prominence; the surface is studded with small 
scattered warts, and there are three large spines in front above 
the lateral line and two more below, above the middle coxa, 
the larger ones being again surrounded and studded with 
shorter spines and warts; metathorax with a strong carina 
and a large spine on the middle and behind ; below the median 
line there is a large cluster of spines in front of the hind coxe ; 
abdomen with the first six segments transverse, the remainder 
tapering ; with a longitudinal granular carina, rising into a 
simple spine at the extremity of each segment, which slopes 
laterally to the base of a short spine on each side; near the 
front of each segment is an acute oblique spine on each side, 
and along the lateral line runs a row of short spines. On the 
eighth segment the terminal spines on the median line end with 
a strong raised ridge extending along nearly the whole length of 
the segment. The median spines, except the last ridge, are 
usually marked with black, and the ovipositor is also black. 
The legs are strongly ridged and are moderately spined along 
the carinz on the femora and tibie. The femora, except at 
the base and tip, and a great part of the tibiz and tarsi are 
blackish. Body beneath testaceous, nearly smooth, with only 
a row of spiny warts running along each side of the meso- 
thorax and abdomen. 
Legs rather short, femora rather shorter than the tibie. 
First four joints of the tarsi short, diminishing in length, the 
fifth as long as all the others. Antenne slightly pilose; scape 
as long as the third joint, but much thicker than the short 
second joint, which again is thicker than the third. 
Hab. Rossel Island, Oct. 18. 
