NEW LACEBUGS—DRAKE AND RUHOFF 129 
entirely biseriate. The tricarinate pronotum separates socium from 
the species described above. 
Genus Ulmus Distant 
Ulmus Distant, Trans. South African Phil. Soc., vol. 14, p. 425, 1904. 
Ulmus engaeus, new species 
Figure 4 
DescrirTION: Small, rather broadly ovate, elytra strongly convex, 
brownish testaceous, with dark fuscous marks as depicted in figure 4; 
body beneath dark fuscous, with lateral sides blackish. Legs brownish 
testacous, with femora brownish fuscous. Antennae brownish 
testaceous, first two segments brown, fourth segment black. Length 
2.60 mm., width (elytra) 1.50 mm. 
Head long, longly produced in front of eyes, grayish fuscous with 
spines testaceous, armed with six spines, the occipital pair absent; 
bucculae long, wide, areolate, extending anteriorly beyond apex of 
clypeus, open in front; antenniferous processes small, rounded in 
front, concave within. Antennae long, very slender, shortly thinly 
pubescent; segmental measurements: I, 12; II, 7; III, 60; IV, 16. 
Labium long, brownish with dark apex, extending a little beyond base 
of rostral sulcus; sternal laminae of sulcus areolate, ends not meeting 
behind. Hypocostal laminae wide, long, areolate. Metathoracic 
scent glands with ostiole and a narrow, long, obliquely upright (slightly 
tilted backward) ostiolar sulcus on each metapleuron. Legs 
moderately long, moderately slender, with femora slightly thickened. 
Pronotum depressed, areolate, unicarinate; median carina 
percurrent, foliaceous, mostly uniseriate, biseriate in highest part, 
without indication of lateral carinae; calli blackish, impunctate; 
collar long, raised anteriorly, composed of three, transverse rows of 
areolae; paranota wide, with outer margin sinuate, widest near 
middle, toothed at lateroposterior angle; hind margin of pronotum 
truncate. Scutellum small, visible. 
Elytra in repose distinctly ovate, very little longer than abdomen 
(brachypterous), costal area moderately wide, horizontal, biseriate; 
subcostal area very wide, mostly six areolae deep, sloping obliquely 
downward, with two to four, transverse, adventitious veins; clavus 
and discoidal areas fused, not clearly separable from each other, with 
two or three raised, oblique, traverse, adventitious veins, the discoidal 
part extending backward considerably beyond middle of elytra. 
Hind pair of wings wanting. Macropterous form unknown. 
