138 Annals Entomological Society of America [Vol. V, 
dusky apically; rather longer than head and thorax together, not slender, 
seventh and neighboring flagellar joints about twice as long as wide. 
Clypeus transverse with deep fovea on either side. Malar lines indis- 
tinct, cheeks rather swollen, closely and evenly punctured. Mandibles 
bifid with dark teeth. Palpi rufous and rather long. 
Thoracic nodes sub-equal, shining though finely 
punctured. The pro- and meso-thorax about the same 
length medially. Separated by a rather indistinct 
suture. Prothorax rather sharply constricted anteriorly 
to form a well defined neck. Mesothorax quite flat in 
front of scutellar suture. Secutellum indicated by an 
obsolete tubercle. ‘‘Metathorax”’ strongly gibbous, 
with no indication of a carina. Legs clear ferruginous, 
somewhat more dusky than the thorax. 
Abdominal petiole as long as the ‘‘metathorax”’, 
only slightly expanded at the apex, with rather promi- 
nent spiracles; concolorous with ground color of remain- 
ing segments. Closely and evenly shagreened. 
Remainder of abdomen oblong oval 2—2!% times as - 
wide as the thorax, ferruginous, closely and evenly 
shagreened, and with a very sparse minute pubescence; 
second segment with an indefinite piceous basal band, 
third segment with a very conspicous broad black basal 
band. Third and following segments with narrow 
black apical bands varying much in intensity. 
Ovipositor somewhat shorter than the petiole. 
Sheaths dusky at the base and black at the apex. 
Observations. Described from 8 specimens 
Fig. 5. taken at Twining, Maryland, in March and April, 
Micromeson This is evidently closely related to M. lymense 
annulatum. 5. nov. but is readily distinguished by the absence 
of median furrows on the meso- and “‘meta’’-thorax. 
Type in the National Museum. 
Paratype in the Bussey Institution, Harvard University. 
Micromeson lymense sp. nov. 
Female 6-6.5 mm. A large conspicuous species, with head and 
thorax entirely fuscous. Abdomen fuscous with a conspicuous black 
base band on the third segment, and a less well defined similar band on 
the second segment. Mesothorax and ‘“‘metathorax’”’ medially sulcate. 
Head from above shagreened, dull, with a very sparse pubescence; 
not quite as broad as thick along the median line. Anterior, or facial, 
border straight, level with the eyes, margined occiput but little exca- 
vated. Antenne about 24-jointed, concolorous with the head, rather 
longer than the head and thorax together. Seventh and neighboring 
flagellar segments about twice as long as broad. Clypeus transverse 
