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voG02.. | PROCEEDINGS OF THE NATIONAL MUSEUM. 363 
oblongam, minutun. Caputthorace paullo angustius. Ocelli distantes 
Antenne capite cum thorace longiores; 8-articulatw; articulo Imo, 
elongato; 2do, parvo, obconico; stio, 4to, et 5to, minimis, singulo 
ramum elongatum supra emittenti; 6to longo, tenui, apice supra 
ramum emittenti; Tmo, paullo breviori; ultimo, magno, oblongo-ovato. 
Thorax ut in Encyrtis formatus, scutello magno subrotundato. Ale 
antic nervo subcostali, cum costa spatio parvo conjuncto, et ad 
apicem ramum parvum clavyatum et curvatum emittente. Pedes sat 
longi atque graciles, intermedii ut in Kneyrto formati. Tarsi 5-artieu- 
lati pulvillo magno. Abdomen parvun, ovatum, subdepressum; apice 
subacuminatum. Mas. 
“Species unica mili adhue cognita. 
“ Tetrachemus diversicornis Westw. 
“ Caput nigro-eeneum, vertico tenuissime et transverserugosum. <An- 
tenne nigrie, pilose. Thorar eneus, scabriculus; tegule pices. Ab- 
domen nigricans. Pedes nigricantes, geniculis rufescentibus, tarsis 
piceis, calcaribus etarticulo basali pedum intermediorum, luteis. Long 
corp. $ lin.; expans. alar.1 lin. Habitat in quercetis apud Sylvam 
Coombe, die 3tio Julii, 1835, captus.” 
TANAOSTIGMA Howard. 
The following description of this genus and its sole species is copied 
from Insect Life, Vol. 111, No. 4, November, 1890, pp. 147-149: 
“ Male.-—Resembles somewhat closely Tetracnemus Westwood. An- 
tenne 11-jointed+2 ring-joints; scape with a slight expansion below, 
the expansion faintly serrate; pedicel one-third as long as scape, nar- 
rowed at base; joints 1, 2, 3, and 4 of the funicle (not counting ring- 
joints) each with a single long hairy dorsal apical ramus, each ramus 
bent forward and reaching to baseof club; joints 1 and 2 short, subequal 
in length, and considerably broader than long; joint 3 one-third longer 
than 2; joint 4 rather more than twice as long as 3; joint 5 rather more 
than three times as long as 4, gradually widening towards tip; joint 6 a 
little longer than 4, gradually widening from 5; club oval, somewhat 
flattened, twice as long as joint 6 of the funicle and slightly wider, joints 
plain. Face sunken in and shriveled in death; ocelli forming a straight 
line. Mesocutum with a faint transverse, slightly oblique impressed line 
just anterior to and almost parallel with the scuto-scapular furrow, and 
connected with this by a faint median longitudinal impressed line; scapule 
just meeting at tip,the mesoscutellum therefore pointed anteriorly, rounded 
posteriorly. Wings hyaline, not ciliate; marginal vein long; postmar- 
ginal less than one-third as long as marginal; stigmal «a trifle more than 
twice as long as postmarginal and descending almost vertically into the 
wing, the club bending abruptly outwards. Abdomen very short, 
almost truncate behind. Middle tarsi short, two-thirds the length of the 
short tibie; mesotibial spur rather slender for this group, but longer 
than the first tarsal joint and acutely pointed. 
