594 Transactions.—Zoology. 
triarticulata ; retractiles. —Prothorax lateribus subtus impressis. 
Coxe sat distantes. Tarsi 4-articulati, articulo basali sat elongato, 
subtus setoso. Facies generis Tarphii. 
I propose this generic name for two species which have extremely the 
appearance of Tarphius, but differ therefrom by the 8-jointed antennal 
club and the more elongate basal joint of the tarsi. I have little doubt 
that these insects have the habits of Tarphius, and will require to be sought 
among the dead leaves and decaying vegetable matter of the New Zealand 
woods and forests. The two species before me, though they look extremely 
like one another at first sight, show, on examination, structural differences 
that leave me no doubt that numerous other species will be found in New 
Zealand.  Enarsus bakewellii, Pascoe, is a very interesting allied form ; but 
ts appearance indicates very different habits, its tarsi have the second and 
third joints much more developed, and I believe the trophi will show 
important differences, 
Syncalus optatus, n sp. 
5. oblongo-ovalis, eonvexus, piceus, antennis pedibusque rufis; setis 
elongatis, erectis adspersus, et cum pube depressa inwqualiter ves- 
titus ; tibiis setosis. Long. corp. 41 m.m. 
Antenne short, red, with the basal joints pitehy ; first joint elongate and 
exposed ; third longer, but much more slender than second ; fourth a good | 
deal shorter than third, but longer than fifth ; eighth small, but trans- 
verse; ninth and tenth abruptly broader ; ninth not quite so broad as tenth, 
both of them strongly transverse; eleventh joint large, about as broad as 
tenth. Labrum large and exposed ; last joint of maxillary palpi elongate 
and rather slender. Antennal cavities directed straight backwards along 
the inner margin of the eye. Eyes large, convex, without sete. Head 
coarsely sculptured, so as to appear covered with flattened tubercles, 
Thorax with the sides a little rounded and narrowed towards the front ; 
the anterior angles acute and prominent; the sides behind the ‘middle 
almost straight, so that the well-marked hind angles are about rectangular ; 
the base on each side much sinute ; its surface is covered with an exudation 
which conceals the irregularly distributed tubercular sculpture; and it 
bears some erect sete, Elytra very convex, without tubercles, sprinkled 
with nnmerous long upright sete, and also bearing some fine, greyish, 
depressed sete, which are distributed in irregular patches ; the sculpture 
which apparently consists of rows of coarse punctures) is concealed by an 
exudation. Tibia bearing externally a row of long sete. Tarsi with the 
basal joint about as long as the two following ones together ; the second and 
third are small; the fourth is slender, and rather longer than the other 
three together, 
