218 Mr. T. Vernon Wollaston on 
Long. corp. lin. circa 1}. 
Hab.—Maderensis (Mad.); in sylvaticis editioribus ad 
S. Ant. da Serra, tempore vernali A.D. 1870, sat copiose 
repertus. 
Obs. Species 7. flavomarginato affinis, sed nisi fallor 
certe distincta. Differt corpore angustiore, oblongiore, 
graciliore, ac paulo depressiore, sensim minus nitido sed 
omnino dilutiore (magis rufescente), capite preecipue 
minus obscuro; prothorace paululum magis quadrato 
(i. e., postice sensim minus angustato); elytris ad latera 
magis parallelis, subdepressioribus, ac multo profundius 
striatis, magis concoloribus (7. e.,1n limbo minus evidenter 
testaceis); antennis pedibusque sub-longioribus et sub- 
gracilioribus. 
Several examples of this Trechus were taken by myself 
during April and May of 1870, at S. Antonio da Serra, 
in the intermediate elevations of Madeira,—in company 
with the 7’. flavomarginatus, which is so universal within 
the wooded districts of that island. There can be no 
doubt, I think, that the species is perfectly distinct from 
(although closely allied to) the latter,—being not only 
narrower, slenderer, and more oblong, but likewise per- 
ceptibly less shining, and altogether more diluted, or 
rufescent, in hue (the head being especially redder); its 
prothorax also is just appreciably squarer, or less narrowed. 
behind ; its elytra are straighter, or more parallel at the 
sides, a trifle flatter, and much more deeply striate, as 
well as more concolorous (there beimg less trace of a pallid 
margin); and its limbs are, if anything, somewhat longer 
and slenderer. It was far from uncommon throughout 
the 8. Antonio da Serra region ; the majority of my spe- 
cimens having been captured by sifting dead leaves and 
refuse in, and near, the laurel woods. 
(Sp. 160) Trechus quadricollis. 
This species was founded, in 1854, upon a single example 
which was captured by myself in the autumn of 1847 at 
the Curral das Romeiras—on the mountains above Fun- 
chal; and I have already more than once expressed my 
conviction that further material was greatly needed, in 
order to determine as to whether or not it is a mere state, 
or local variety, of the 7’. custos. During the past winter 
