BY F. W. GODING. 13 



The above description is but a translation of the one ijiven bv 

 Stal. The measurement is not mentioned. 



Type in Mus. Holm. 



Hdh. — New Holland (FaVjricius). 



ACANTIIUCUS, Stal. 

 1866, Hemiptera Africana, iv. p. 87. 



Prothorax elevated, rising vertical!}^ from the base, furnished 

 with an acute triquetrous horn on each side, above lateral angles; 

 posterior process slender, more or less sinuate, the median longi- 

 tudinal carina between and behind lateral horns briefly foliaceous 

 or elevated in a high tooth or horn. 



Tegmina with the corium furnished with five oblong apical and 

 two discoidal cells; costal cell extended beyond radial; the two 

 interior longitudinal veins destitute of a transverse venule near 

 base; clavus with two veins, gradually narrowed to apex. 



Wings with four apical cells. 



Scutellum with apex truncated, ending, on each side, in a little 

 tooth. 



Tibise and tarsi simple, not dilated. 



Type, Centrotus trispinife'i% Fairm. 



Synopsis of Species. 



1 (3). Dorsum of posterior prothoracic process furnished 



with an acute elevation behind lateral horns. 



2 (3). Posterior process far distant from the interior borders 



of closed tegmina, dorsum with a second elevation 

 which is a high, triangular, acuminate horn ; 

 apical cells of corium crescent-shaped, base curved 

 toward interior rujiventris. 



'6 (2). Posterior process touching interior borders of closed 

 tegmina throughout, with a second elevation an 

 obtuse angle; apical cells of corium straight. 



4 (5). First dorsal elevation an acute angle trispinifer. 



5(4). First dorsal elevation a slender spine graciUspinus. 



6 (1). Posterior prothoracic process not horned behind the 

 lateral horns, but the median carina is somewhat 

 elevated in an obtuse angle, or lightly foliaceous. 



