274 HOMOPTERA 



and tegmina, the exposed sides of the scutellum and the simple venation of the corium with straight 

 veins showing five apical and two discoidal cells and the fact that the hind wings have four apical cells. 

 Head subquadrate, wider than high, somewhat deflexed ; base arcuate and sinuate; eyes large and 

 ovate ; ocelli small, inconspicuous, farther from each other than from the e3'es and situated above a line 

 drawn through centers of eyes; inferior margins of gense rounded ; clypeus extending for half its length 

 below inferior margins of gense. Pronotum convex, gibbous, punctate; metopidium vertical, convex, 

 about as wide as high ; no suprahumeral horns; humeral angles large, heavy, blunt ; median carina 

 faintly percurrent; posterior process straight, tectiform, acuminate, touching the scutellum and the 

 tegmina and extending to a point just beyond the internal angles of the tegmina ; scutellum broadly 

 exposed on each side (in the type species bright yellow with black tip). Tegmina broad, semi-opaque 

 (in the type species ferruginous with yellowish markings); base narrowly coriaceous and punctate; veins 

 strong, simple and straight; five apical and two discoidal cells; apical limbus broad. Hind wings with 

 four apical cells. Legs simple, robust and more or less pilose; Iiind tarsi longest. 



Type maculiscutum Amyot and Serville. 



Geogpaphical distribution : Two species, both from Africa, are the only known representatives 

 of the genus. 



1. macnliscntnm Amyot and Serville, Hemip. 55o (1848). — Pl. 14, Africa, Senegal. 



fig. 238. 



2. w«//m- Walker, Ins. Saund. 78 (i858). South Africa, Cape of Good 



Hope. 



270. GENUS DINGKANA GODING 



Dingkana Goding, Mon. Aus. Memb. 9(igo3). 



Characters : Near the preceding genus and closely resembling it in general facies but with an 

 entirely diff^erent geographical distribution and distinguished by the much longer and strongly decurved 

 posterior process and the presence of three discoidal cells in the corium. Head subquadrate, strongly 

 punctate, twice as broad as high; base feebly arcuate and strongly sinuate; e^^es ovate; ocelH large, 

 conspicuous, about equidistant from each other and from the eyes and situated on a line drawn through 

 centers of eyes; inferior margins of genas sloping and sinuate; clypeus broad, extending for half its length 

 below inferior margins of gena:, tip pointed. Pronotum convex, gibbous, roughly punctate; metopidium 

 sloping, about as broad as high; median carina faintly percurrent; no suprahumeral horns; humeral 

 angles strong, triangular and pointed; posterior process long, slender, tectiform, strongly decurved, tip 

 acuminate and reaching to the end of the abdomen and nearly to the tips of the tegmina ; scutellum vvell 

 exposed on each side. Tegmina subhyaline, venacious; base coriaceous and punctate; veins strong, 

 simple and nearly straight, five apical and three discoidal cells; apical limbus broad. Hind wings wiih 

 four apical cells. Legs simple, long and slender; hind tarsi longest. 



Type borealis Goding. 



Geographical distribution : This genus is known only from the type species described from 

 Australia but these insects must be quite abundant as they are well represented in most collections from 

 the Australian region. 



I. borealis Goding, Mon. Aus. Memb. g (igoS). — Pl. 14, fig. 239. Australia,Queensland,Cairns, 



New Zealand, Tasmania, 

 New Guinea. 



