126 
tibize bidentate externally, &c. A specimen of this species was also 
brought from Ayer’s Rock by the Horn Exploring Expedition of 
1894. 1 
POGONUS HYPHARPAGIOIDES, 7. sp. 
Male. Oval, robust; head large, convex ; prothorax a little 
broader than long, not sinuate on sides before base, apex and 
base of equal width (1°5 mm.); elytra striate, the strie simple, 
obsolete near base, a short striole at base of first interstice, third 
interstice tripunctate. 
Testaceous. Head smooth, convex, broad across base, widely 
and feebly impressed on each side between antenne ; clypeal 
suture distinct ; clypeus large, truncate; eyes convex, not promin- 
ent, lightly enclosed behind. Mandibles stout, hooked at apex; 
scrobe with a setigerous puncture towards apex. Labrum trans- 
verse, subtruncate (very lightly emarginate), sexsetose on anterior 
margin. Mentum with a short wide emarginate median tooth, 
Palpi: maxillary with penultimate joint a little longer than 
apical, incrassate ; apical joint dilatate about basal third, nar- 
rowed to apex (apex obtuse); labial with penultimate joint long, 
narrow ; apical joint shorter than penultimate, subcylindrical, 
dilatate in middle, narrowed to apex, subtruncate. Antenne 
rather short, subfiliform ; first four joints cylindrical ; first much 
thicker than others, about as long as third; second shorter ; 
seven apical joints of about equal length, compressed ; three 
basal joints glabrous (a few long setz at apex of third). Pro- 
thorax a little broader than long (2 x 2:1 mm.), widest a little 
before middle, smooth, convex ; anterior margin truncate; base 
roundly truncate ; sides lightly rounded ; anterior angles obtuse, 
very close to head ; basal angles obtuse; border narrow and re- 
flexed on sides, thick and not reflexed on base, a short projecting 
prominence on each side just before basal angles bearing the pos- 
terior marginal puncture ; marginal channel very narrow, passing 
evenly round each basal angle; median line linear, lightly im- 
pressed ; lateral basal impressions near each basal angle, wide, 
round, shallow, a wide, transverse impression connecting them. 
Elytra convex, short, oval (4:5 x 2°38 mm.), widely and evenly 
rounded at apex; base truncate, much wider than base of pro- 
- thorax; three inner stris strongly marked on disc, fourth and 
fifth very lightly marked, sixth and seventh obsolete; the striz 
obsolete, or very faint, towards base, and faint on apical declivity ; 
eighth stria deeply impressed, diverging from margin some dis- 
tance behind shoulders ; three inner interstices a little convex in 
middle of length, ninth wide, convex, punctate on course of 
eighth stria; border narrow ; basal border with posterior margin 
sloping forward on each side to humeral angles. Legs light ; 
