[October 
24() 
pleura is not described as livid between the blackish stripes, and its 9 
hind tarsi are said to be “ yellow in the middle,” no traces of which 
color are discoverable in the tarsi of 9 consohruius. But externus is 
said, when compared with frafernus, to have “ its terminal abdominal 
segments very much more dilated, so as always to prevent any confu¬ 
sion between the two species,” and consobrimts, when placed side by 
side with fraternus^ exactly resembles that species in the structure of 
its terminal abdominal segments. 'Ind. The 9 of externus is known 
and described, yet no mention is made of the remarkable and conspicu¬ 
ous yellowish thorns on the 9 vertex which are found in 9 ' consohri- 
ims. Srd. The posterior femora of externus % 9 ^^0 said to have, be¬ 
sides the short promiscuous spines, “ an external series of spines of 
which a dozen are successively longer,” whereas in % 9 consohrinus 
there is not only an external, but a distinct internal series also, but 
slightly shorter than the external ones. 4^/i. Neither the description 
(p. 412) nor the figure (Plate 21, fig. 2) of the % abdominal appen¬ 
dages of externus precisely agree with those of consohrinus; still the 
differences in their structure are not fundamental. The vulvar lamina 
agrees exactly, and the % genitals pretty closely, so far as they are 
figured. 
G. quadricolor n. sp. Pale green. Head with the occiput ciliated above 
with black hairs and regularly rounded in a circular arc of 45°, so as to be cut 
off nearly throughout by a line drawn from the top of one eye to the top of the 
other. All between the occi 2 :)ut and front black. Vesicle of the vertex loftily 
cariniform, transverse, scarcely emarginate in the middle, and curving down¬ 
wards very suddenly at the sides towards the eyes. Upper surface of tlie front 
with a. basal black band, parallel with its anterior edge except that it is acutely 
emarginate laterally at i of its entire width. Labium pale livid green, the ex¬ 
terior margin of its lateral lobes yellowish : back of the head blackish, but 
along the lateral margin of the eyes with a large, ill-defined, elongate, yellow 
s 2 )ot. Prothorax black, with the anterior lobe and a small double spot on the 
jiosterior lobe yellow, and a double diseoidal spot and a large lateral one green. 
Dorsum of thorax with the stripes black; the carina green only half-way from 
its jiosterior bifurcation to its tip, elsewhere black. The two median stripes 
confluent, gradually wider in front, squarely truncate in front, not attaining 
the anterior margin by ^ a millimetre, but narrowly confluent along the front 
of the antealar sinus with the antehumeral. The antehumerals wider, their 
sides parallel in front but converging behind, nearly twice as near to the me¬ 
dians behind as they are in front. The humerals as wide as the medians, and 
wider behiffd than in front, separated in front from the antehumerals only by 
a narrow green line, and confluent with them for a short space at | the distance 
