1895.] Entomology. 763 
parts of the larva are introduced for comparison with those of other 
Carabids. The mandibles are long and curved, with a very strong 
tooth near the base, this tooth being pectinate on the inner margin and 
provided on the side with many short bristles. Still nearer the base of 
the mandible than the tooth is a bunch of long slender hairs. The 
maxillz have only the basal joint left in my preparation—this is heavy 
and very spiny, bearing near its inner tip a bristle-tipped tubercle. 
The mentum is broader at tip, the palpi with bristly basal and naked 
second joint. 
CHLENIUS SERICEUS Forst. 
Larva of a greenish-black color with bronzed luster, head reddish, 
feet testaceous becoming piceous in the vicinity of the claws. 
Form elongate, slightly convex above, more flattened beneath, taper- 
ing to both ends but more distinctly posteriorly. The ninth abdom- 
inal segment bears two processes or filaments about equal in length to 
the rest of the insect. 
Head narrowed behind the eyes and slightly constricted into a neck ; 
anterior to and between the eyes the upper surface is concave and with 
two very distinct longitudinal impressed lines. Beneath the surface is 
convex but with a distinct longitudinal groove and a large anterior tri- 
angular impressed space, the middle of which is slightly elevated. The 
upper and lower surfaces are both very finely granulate, the former 
with some distinct rugæ and punctures in addition. Hairs are visible 
only under a strong lens and are few in number. 
Ocelli six, about a raised spot back of the antennz. 
Antenne four-jointed, bristly, the first joint long, the second shorter, 
third a little longer than the second and bent near the tip. The fourth 
is scarcely half as long as the third and fusiform in shape. 
Mandibles long, curved, armed below the middle with a strong tooth 
which is directed inwards and downwards; still nearer the base is a 
small bunch of hairs which lie against each other so closely as to 
simulate a spine and can only be resolved into components by the use 
of a high-power objective. This little bunch is, without doubt, the 
homologue of the large brush found in the larva of Cychrus elevatus. 
Maxillze with long stout basal joint bearing a few long spines and 
numerous more delicate hairs; inner lobe two-jointed, the basal joint 
the longer and stouter. Palpus four-jointed, first joint short and thick, 
second more slender and about twice as long, third about equal in 
length to the second, but more slender, fourth very small. Besides the 
palpus and inner lobe, the maxilla bears on its basal joint, just near the 
base of the lobe, a small bristle-tipped appendix of a single joint. 
52 
