NEW LACEBUGS—DRAKE AND RUHOFF 127 
Gonycentrum engistum, new species 
Ficure 2 
Description: Small, obovate, brachypterous, stramineous brown, 
with head dark brownish fuscous, calli black, marks on pronotum and 
elytra fuscous and located as shown in figure 2; antennae dark brown, 
with fourth segment black; legs brownish with some fuscous; body 
beneath dark blackish fuscous. Length (brachypterous female) 2.80 
mm., width 1.25 mm. 
Head broad, punctate, with two pairs of short, stout, blunt, testa- 
ceous spines in front of eyes; bucculae wide, long, areolate, with apices 
scarcely meeting in front. Antennae moderately long, third segment 
sparsely clothed with pale setal hairs, fourth segment moderately 
clavate, with pale pubescent hairs; segmental measurements: I, 12; 
II, 6; III, 56; 1V, 16. Antenniferous tubercles pale, rounded in front, 
concave within. Labium long, brownish, extending a little beyond 
metasternum; sternal laminae of rostral sulcus wide, whitish testa- 
ceous, wider and biseriate on metasternum, open behind. Legs rather 
short, sparsely provided with pale setalike pubescence. Meta- 
thoracic scent glands without distinct orifice on each metapleuron. 
Hypocostal lamina narrow, uniseriate. 
Pronotum depressed, reticulately punctate, unicarinate; calli deeply 
impressed, impunctate; median carina raised, uniseriate, the areolae 
small, becoming indistinct posteriorly; lateral carinae absent; collum 
broad, finely reticulate; paranota narrow, mostly uniseriate, biseriate 
opposite calli; posterior margin subangulate. Scutellum small, not 
concealed. 
Elytra strongly convex, meeting in a straight line behind scutellum; 
costal area narrow, uniseriate; subcostal area wide, sloping convexly 
downward, six or seven areolae deep opposite base of discoidal area; 
discoidal and claval areas united and not clearly separable from each 
other, nearly two-thirds as long as elytra, six to seven areolae deep in 
greater part, with apical border obtusely angulate, apex of basal 
angle located near the inner boundary. Boundary veins separating 
discoidal (including clavus) and subcostal areas and between sutural 
and subcostal areas distinctly raised. Male and macropterous form 
unknown. 
Type: Holotype (brachypterous female), Mount Lamington, New 
Guinea, May 1937, USNM 65110. 
Remarks: The holotype of G. engistum is illustrated in figure 2. 
The unicarinate pronotum and shorter discoidal areas separate at 
once this species from other members of the genus described from 
the East Indies and Australian Region. 
