408 SHarp—On New Zealand Coleoptera. 
patrum. This interesting form may, if an intermediate should be discovered, prove 
to connect the genus Syrphetodes with Pseudopatrum; though one or two inter- 
mediate links as regards the antennary orbits and eyes are required before we are 
warranted in considering this affinity as established. 
Periatrum helmsi, n. sp.—Oblongum, haud depressum, supra planulatum, 
fuscum, opacum, tenuiter setosum; elytris ad latera et apicem irregulariter tubercu- 
latis; antennis pedibusque testaceis. Long. 7 m.m. (Plate xut., fig. 5.) 
Antenne with third joint one and a-half times as long as the second, a little 
thickened from the fifth joint to the extremity, the terminal joint being the largest. 
The upper surface is obscurely sculptured in the form of very minute asperities, 
quite irregularly placed; there is an irregular longitudinal depression along the 
middle of the thorax more free from sculpture than the rest of the surface. The 
thorax is rather broader than long, moderately emarginate in front, the sides a 
little narrowed behind, the outline irregular, the hind angles nearly rectangular. 
The scutellum can scarcely be distinguished. The wing-cases are parallel-sided, 
and their outline behind becomes quite irregular on account of the nodules; there 
are also two irregular transverse series of nodules extending across the declivous 
apex. The very broad basal portion of the pseudepiplure bears large shallow 
punctures. 
Greymouth. Helms, No. 376. 
APTHORA. 
Apthora glabritarsis, n. sp.—Oblonga, parallela, nigerrima, nitida; prothorace 
fere impunctato, margine laterale posterius crasso; elytris seriatim subtiliter punc- 
tatis. Long. 12 m.m. 
Antenne short, black; each joint from the third to the tenth a little shorter and 
broader than its predecessor; the penultimate joints strongly transverse ; terminal 
joints large, obtuse; epistome very deeply notched in front, so as to be quite 
bilobed; thorax about one-third broader than long, its surface with distant, exces- 
sively minute punctures. The serial punctures of the elytra are fine, but distinct 
and very regular; there is a short series on the sutural interval near the 
scutellum ; the interstices impunctate. The tarsi are short and thick, and remark- 
able on account of their freedom from pubescence or setz, all that can be detected 
being a very few placed on the inner face of the tarsus, not on the sole. The only 
example found is no doubt a male; it has the hind tibize denticulate internally 
below the knee, and the hind margin of the posterior femora and trochanters set 
with flavescent pubescence. 
Picton. Helms. This is an interesting insect on account of the peculiar tarsi: the only other species 
of the genus has much more slender feet, with a little pubescence beneath. 
