of Heteropterous Hemiptera. 369 
medium retrorsum sensim humilioribus; pronoto rude punctato, 
callo transverso antico et angulis posticis subelevatis levigatis, mar- 
gine antico quam margo posticus paullo breviore, longitudine quam 
latitudo postica + minore ; scutello fortiter triradiatim calloso- 
rugoso, ad latera punctato ; elytris fere a basi sensim rotundatis 
et subampliatis, sutura clayi distincte biseriatim punctata; pedi- 
, bus subcrassis, tibiis apice et tarsorum articulis subclavatis. 
Q. Long. 4, lat. 14 m.m. 
Apparently allied in some respects to N. helveticus, H.-S. 
As yet rare, only two specimens having been taken. These 
were beaten from trees (one in May, the other in July), some 
miles apart, high up in the mountainous district. 
16. Nystus caenosulus, Stal. 
Nysius coenosulus, Stil, 1. c. 243, 59. 
The specimens which I refer to this species do not alto- 
gether agree with Stal’s description, as the scutellum is only 
black in part, the apex of the second joint of the antenne 
and the inner vein of the corium are not markedly dark, the 
mesosternum is sulcate, and the whole animal is more hairy. 
Still I think that they are properly referred here. N. cano- 
sulus is peculiar to the Hawaiian Islands. 
Rather common on and about a small plant that grows in 
sandy places on the sea-shore. 
17. Pamera nigriceps, Dall. 
Rhyparochromus nigriceps, Dall. List, ii. 577. 47. 
A common species on low plants and under stones &c., but 
not occurring below about 1000 feet above sea-level. This 
species is reported also from the Philippine Islands, Taiti, 
and New Zealand. The last-mentioned locality is on the 
authority of Dr. Mayr (‘ Novara’ Hemiptera, p. 128) ; and I 
think it is just possible that a mistake may have occurred, 
though Dr. Mayr is so good a hemipterologist that I have 
much hesitation in suggesting this. ‘The reasons I have for 
thinking there may be a mistake are these :—Dr. Mayr records 
nigriceps from New Zealand under the name Plociomerus 
nigriceps, with the remark that it seems to unite the charac- 
ters of both Paromius and Plociomerus. Paromius, it may 
be mentioned, is synonymic with Pamera in part. Now there 
is a New-Zealand Plociomerus (which I have described under 
the name P. Douglas’) which very much resembles Pamera 
nigriceps, and which, if Dr. Mayr had only Mr. Dallas’s 
description of the latter species (written when it alone was 
known) before him, it is not difficult to imagine that a mis- 
Ann. & Mag. N. Hist. Ser. 5. Vol. i. 25 
