884 
[February 
2. H. simplex, n. sp. 
Female .—Head subquadrate, black, finely and densely punctured, 
sparsely clothed with pale hairs; antennae short, black. Thorax black, 
finely and densely punctured, shining; metathorax longitudinally im¬ 
pressed on the disk; tegulae tinged with rufous. Wings subhyaline, 
apical half clouded; nervures fuscous. Legs black, with scattering 
pale pubescence, that on the tarsi beneath dense and yellowish. Ab¬ 
domen subovate, convex above, black, shining, minutely punctured; 
basal segment rounded in front; some of the segments have an obsolete 
marginal fringe of pale pubescence; ventral scopa yellowish-white. 
Length about 3 lines. 
Hah .— Connecticut. One specimen. Coll. Mr. E. Norton. 
Resembles the preceding species, but is distinguished at once by the 
much finer punctation, and by the rounded front of the basal segment 
of the abdomen. 
ANDRONICUS, nov. gen. 
Head transverse, as wide as the thorax ; ocelli placed in a curve on the vertex ; 
antennce () half as long as the thorax, scape rather long and robust, most slen¬ 
der at base, flagellum unequal, joints 2—5 dilated, joint 6 suddenly narrower 
and the following joints gradually attenuated to the tip which is pointed; man¬ 
dibles rather acutely bidentate at their apex. Labial palpi four-jointed, the two 
basal joints elongate, of equal breadth from the base of the first joint to almost 
the tip of the second joint which is acute, basal joint about half the length of 
the second, the two apical joints minute, of about equal length and placed at 
the side and near the apex of the second joint. Maxillary palpi four-jointed, 
the three basal joints rather long and about equal in length, apical joint slen¬ 
der, cylindric, pointed at its apex and about half the length of the third joint; 
lobe of the maxilla long, slender and moderately curved. Superior wings with 
one marginal and two submarginal cells, the first recurrent nervure uniting 
with the first transverse nervure, and the second recurrent nervure received 
by the second submarginal cell a little within its apex. Abdomen elongate, sub- 
linear, slightly narrowed towards the base; apex (% ) incurved. 
The specimen upon which I have founded this genus resembles in 
general form that of Chelostoma., but the maxillary palpi are fonr- 
jointed. The structure of the antennae is very singular, having some¬ 
what the appearance of the figure of an antennae given by St. Fargeau, 
Hymen. PL 26, fig. 6 bis. I have not been able to identify this and 
the two following genera with any that has been already established. 
A cylindricus, n. sp. 
Male .—Head black, minutely punctured; face below the antennae 
