304 Dr. Malcolm Cameron’s Synoptic Table of 
119. Antennae testaceous, species pitchy . om was P LAO: 
— Antennae brown, species black, head bioaden than 
long. Elytra longer than broad, abdomen closely and 
finely punctured and oe throughout. Length 
I-8-2 mm. =. oo ao Pi longata; eer. * 
120. Very small fragile species, Heda square, elytra longer 
than broad. Abdomen finely and closely punctured 
and pubescent throughout. Length 1:5 mm. 
6 delicatula, Shp. 
— Larger and more robust, head broader than long. Ab- 
domen less finely and closely punctured especially at 
apex. <4, antennal joints slightly longer than in 9. 
6th ventral plate much produced but not narrowed. 
Very like fragilis but antennae testaceous and insect 
more depressed. (See also 133 fragilis.) Length 
yA OT - .  . 9 exumea, Shp. 
121. The whole upper snfacs doandl arial finely punctured 
and pubescent as in Oxypoda: black with brown 
elytra, completely dull. 3, 6th ventral plate rounded 
and produced. Length 2°3-2°3 mm. . . 11 fallax, Kr. 
— Species with normal puncturation and pubescence 122. 
122. Penultimate joints of antennae longer than broad 123. 
— Penultimate joints of antennae as long as broad or 
transverse 134. 
123. Elytra distinctly efitinte 124. 
— Elytra not or scarcely sinuate . 130. 
124. Head and thorax with metallic reflex . 125. 
— Head and thorax without metallic reflex 127. 
125. Elytra distinctly transverse 126. 
— Elytra scarcely transverse, distinctly fonpes hi thee, 
yellowish brown. Antennae dark, testaceous at 
base, the last joint not longer than the two preceding 
together. 3, 8th dorsal plate with 7 or 8 distinct 
teeth at posterior margin, the outer on each side the 
largest. Length 3°-5-4mm. . . . . 102 aquatica, Th. 
126. Elytra distinctly transverse, antennae dark, testaceous 
at base, last joint not longer than the two preceding. 
Facies of ayuatica but broader and more depressed, 
the elytra scarcely longer than the thorax. Punctura- 
tion of fore parts more rugose. 4, 8th dorsal plate 
more or less emarginate and more or less distinctly 
* T have examined a specimen of A. muiri, Shp., but am unable 
to perceive any characters to distinguish it from this insect. 
