2 
Psyche 
[March 
inally considered to be of uncertain systematic position, 1939, p. 148) 
and for S. danforthi Darlington. Banninger incorporated the new 
subgenus into his earlier key to the subgenera of Scarites (1937, 
pp. 123-128) and provided a key to separate the species. 
Scarites subgenus Antilliscaris Banninger 1949, p. 136 
Diagnosis: head: large, 37-59% of length of elytra. Man- 
dibles: median carnassal regions large, basal molar area small with 
complex of interdigitating cusps, dorsal surface smooth. Eyes: small, 
height 30-50% of height of mandible. Antennae: long to very long 
for a Scarites , segment 4 similar to apical segments, dorsal and ventral 
setose areas with rough microsculpture and pair of narrow lateral 
glabrous regions without setae, sides flattened but not as distinctly as 
in segments 5-1 1. Segment 3 circular in cross section with apical ring 
of setae as well as a number on the apical 2/3 of the dorsal surface 
and a few setae, including some very large ones on the ventral sur- 
face (Fig. 13). Frontal plate grooved. Pterothorax : metasternum 
and metepisternum short, L/W of episternum 0.87-1.3, elytra fused 
together and to mesanotum, wings reduced, shorter than metanotum 
in mutchleri. Lateral edge of mesotibia with one large spine. Mete- 
pimeron: slender, pleural suture very faint externally; epimeron-elytra 
interlocking mechanism absent. 
Distribution : montane rain forests of Puerto Rico. 
Key to the species of S. (Antilliscaris) and 
to S. (?) darlingtoni Banninger 
1. Mandibles with series of striations on dorsal surface (Fig. 7) .... 
darlingtoni 
1' Mandibles: dorsal surface smooth (Figs. 6, 10, 11) 2 
2. Elytral intervals 1,3, 5 and 7 with setiferous punctures. Dorsal 
surface of head with 15 setiferous punctures. Antennae short, ex- 
tending about to posterior border of prothorax, L/W of segments 
6-10 less than 1.1 (Fig. 8) danforthi 
2' Only elytral interval 3 with setiferous punctures. Dorsal surface 
of head with 6 or fewer setiferous punctures 3 
3. Antennae extending to mesocoxae, L/W of segments 6-10 between 
1.3 and 1.6 (Fig. 9). Slight impression at posterior end of scrobe. 
Lateral margin of pronotum with 5-6 pairs of setiferous punc- 
tures, L/W 0.80. Total length 12-18 mm mutchleri 
3' Antennae extending to first abdominal sternite, L/W of segments 
6-10 between 1.8 and 2.3 (Figs. 11, 12). Deep pit at posterior 
end of scrobe. Lateral margin of pronotum with 3 pairs of seti- 
