143 
transverse and increasing gradually in thickness distad; club three- 
jointed, rather large, about as long as the funicle and obliquely truncate 
at apex. Mandibles narrow at apex with three more or Jess unequal acute 
teeth, the inner tooth smallest and the middle longest, sometimes con- 
Fig. 7. Hypergonatopus hawaiiensis. Mandible of female, interior and 
dorso-anterior views. 
siderably longer than the other two; base of mandible broad and ex- 
panded nearly in the same plane with apex. Palpi short, the maxillary 
pair four-jointed, the two middle joints about as long as thick, the bagal 
joint one and one-half to two times as long, the apical joint about three 
times as long; labial pair with three nearly equal joints, each about as 
long as thick. 
Thorax of about the usual size and robustness, the mesoseutum 
strongly transverse, twice or more wider than long; axillae short and 
transverse, meeting or nearly meeting at their inner tips; seutellum longer 
than wide, rounded at apex, and more or less longer than the seutum; 
propodeum short and declivous, but lengthening towards the sides, the 
spiracles minute and circular. Abdomen ovate, depressed or often more 
or less deeply sunken in behind the first tergite, nearly as wide at base 
as the thorax and about one-half to two-thirds as long; ovipositor not 
protruded and enclosed to the apex of the abdomen by the ventrites. 
Legs normal, the middle tibiae enlarging towards apex, the middle 
tarsi stout at base but tapering towards apex, the spur as long as the 
first tarsal joint. Wings either of the hemipterous type or fully de- 
veloped; in either case the marginal vein is elongate or usually about 
three or four times as long as the rather short stigmal vein, the post- 
marginal somewhat shorter than the stigmal or sometimes a little longer 
in the hemipterous wing. 
Seulpture throughout is excessively fine or microscopic, the fronto- 
vertex having extremely fine, shallow, thimble-like punctures; the face 
and cheeks much smoother or hardly perceptibly shagreened under high 
magnification; the mesosecutum with very fine scale-like reticulations, the 
axillae and scutellum with similar sculpture but nevertheless duller, 
although not opaque; the mesopleura anteriorly with very fine reticulate 
shagreening, but becoming much smoother on the posterior half; the 
abdomen entirely smooth and _ polished. 
