of vertex slightly divided by middle sulcus, tegmina wide and without a pale band in its basal half .....
Description.--Large size, short head, wide round eyes, fastigium
verticis as wide as or slightly wider than scapus of antennae, in contact with fastigium
frontis, fronto-genal carinae very indistinct.
- Foveolae triangular hardly reaching the fastigium
of vertex; mesosternal interspaces hardly wider than long or narrow than long ........................
In the descriptions below the following conventions were adopted for specimen measurements: body length: the distance from apex of fastigium
verticis to posterior margin of tenth abdominal tergite; tegmen: the visible distance from base of tegmen to the apex in lateral vew; hind femur: the distance from base of hind femur to the apex of genicular or kneelobe.
The projection running from the face to the fastigium
verticis was more acute in L.
Slender, compressed, rather long-legged, pale delphacid with distinctive longitudinal dark brown to black stripes on face and several maculations on thorax and abdomen Head narrower than pronotum (1: 1.4).Vertex in dorsal view short and narrow, a little longer than wide, about 1/3 of its total length projecting beyond the anterior margin of eyes, posterior compartments as long as anterior one, with shallow depressed areas marked on both sides, lateral margin ridged and slightly elevated above eye; submedian carinae arising near anterior margin of the eyes, near to lateral carinae, meeting shortly before the fastigium
, delimiting a very shallow, small sub-apical areola continued into a simple nonfurcatedmedian carina; angle of vertex to frons: ca 85-90[degrees].
Diagnosis.--Body with integument slightly or strongly tuberculate and granulated; antenna longer than head and pronotum together; head conical, irons incurved; fastigium
of vertex elongate-angular and sloping forwards; frontal ridge weak, strongly constricted below lateral ocelli; eyes convex; ocelli small.
The head is large conical, frons long-ovoid, vertex arched, steeply sloping between compound eyes, fastigium
of vertex small, deeply furrowed, lying between dorsal margins of antennal scrobae.
Frons parallel-sided, median carina forked near fastigium
, arms closely approximated onto vertex.
According to Ragge (1962), the genera Drepanophyllum Karsch, 1890, Stenamblyphyllum Karsch, 1896, Debrona Walker, 1870, and Tetraconcha Karsch, 1890 are a fairly well-defined group of African Phaneropterinae, in which the fore tibiae are biconchate and the fastigium
of the vertex has a steeply sloping or vertical sulcus.
of vertex nearly twice as broad as long; carinula of vertex absent, frontal ridge divergent downwards with moderately deep sulcus.