226 Timehrr. 
rufous ; wings fuscous violaceous, the anterior pair much paler ; the Ist and 
3rd abscissa of radius equal in length; the Ist roundly curved at the base, 
the 3rd slightly broadly rounded towards the costa ; the 2nd one-fourth of its 
length and scarcely half of the length of the space between the recurrent 
nervures. Pubescence broadly pyriform, as long as wide, its apex laterally 
bluntly shortly dentate; the apical half irregularly longitudinally striated, 
the middle weakly striated and punctured. Ocelli in a curve, the hinder 
separated from each other by a slightly greater distance than they are from 
the eyes. Base of thorax transverse, margined. Apical third of mesonotum 
with 2 wide furrows. Apex of post-scutellum gradually narrowed to a round- 
ed point. Sides of metanotum marginea, a blunt wide tooth shortly above 
the middle. 1st abdominal segment longish cup-shaped, shortly pedunculated, 
the 2nd as wide as long, not much narrowed at the base. The puncturation 
on the scutellum is weaker and sparser than it is on the mesonotum, on the 
post-scutellum it is stronger, on the sides of the metanotum still stronger. 
Pro and mesopleure strongly punctured, the upper part of the latter obliquely 
striated. Metapleure irregularly obliquely striated, finely, obscurely so below. 
Female. Length 23mm. 
Montezumia striatifrons, sp.n. 
Black, with blue reflections, which are more distinct on the pleure ; both 
wings deep fuscous violaceous, the stigma and nervures black, Ist and 3rd 
absciss of radius equal in length, the 2nd fully one fourth of their length, and 
fully one half of the length of the space between the recurrent nervures. 
Clypeus closely punctured all over, but more strongly so above, the apex de- 
pressed in the centre, transverse. Vertex irregularly punctured and more 
or less stiiated, the front closely, strongly longitudinally striatea. Ocelli in 
a triangle. Base of thorax transverse, margined. Apical half of scutellum 
depressed in the centre. Apex of post-scutellum broadly roundly narrowed. 
Sides of metanotum broadly rounded, the sides of apical three-fourths forming 
an elongated depression rounded on outer side, the inner, next to the central 
keel transversely striated. 1st abdominal segment cup-shaped, a pedicle 
twice longer than wide, at the base ; the apex with a longish, wide furrow ; the 
2nd is wider than long, slightly narrowed at the base laterally, above depressed. 
Female. Length 23 mm. 
There are no longitudinal furrows on the mesonotum ; there is a distinct 
crenulated one on the mesopleure bordering the upper basal half. Ventral 
surface of Ist abdominal segment weakly punctured. 
Montezumia rodwayi, sp.n. 
Black, the scutellums, metanotum except the base and centre narrowly 
and the sides and apices of the abdominal segments and the sides and 
base of the Ist ventral yellow, the lines on the Ist wider than on the 
others ; wings fulvous hyaline broadly ‘n front to the stigma, the radial 
and cubital cellules tinged with fuscous, the h’nder part almost clear 
hyaline, the costa and st°*gma rufo-fulvous, the nervures darker coloured ; 
the Ist abscissa of rad’us nearly as long as the 3ra, which is roundly curved 
