330 ME. G. BOWDLER BUCKTON ON UNDESCEIBED OE 



as to reloted g-cnera. In the last work an attempt has been made to classify the family 

 as it is at i^resent known. 



The ' Biologia ' above alluded to of course only deals with the American insects. 

 Prof. Ign. Bolivar has obligingly forwarded to the writer specimens from the Musee 

 d'Histoire Naturelle de Madrid, and the writer has also received examples of unnamed 

 species from the Musee Belgique. These form the siibjects of the present memoir. 



P.HYNCHOTA-HOMOPTERA. 



Membracis micans, sp. n. (Plate 21. fig. 1.) 



Pronotum foliate and flattened laterally ; metopidium rising perpendicularly above the 

 eyes. Colour pale stramineous, shining like mica, with a pale brown fascia reaching 

 from each shoulder to the thin upper edge, succeeded by tw^o other interrupted fasciae, the 

 latter carried to the posterior end. Legs pale ochreous ; fore legs slightly spatvilate with 

 brown claws. Tegmina hyaline with yellow neuration. Twelve si^ecimens at my 

 disposal were pretty constant in their colouring. 



Prom the Belgian Museum. Collected by M. Van Voixem. Size 9x6 millimetres. 



Membracis vergens, sp. n. (Plate 21. fig. 2.) 



Bather large. Colour a dull coal-black. Seen in profile, with a bright ochreous band 

 which extends backwards from above the eyes on the metopidium to the dorsal edge ; 

 this forms a waving stripe on a black ground. Metopidium rather overhangs the head. 

 Legs black and slightly spatulate. 



Sah. Sta. Caterina. 



Coll. Camilie, Van Voixem. Size 12 x 6 millimetres. 



Hamma nodosum * (genus et species nov.). (Plate 21. fig. 3.) 



Pronotum turgid and prolonged into a knot-like sinuous process, furnished with 

 numerous small spines. This serpentine appendage is continued free from the dorsum, 

 and is nearly as long as the tegmina. These last are short, each furnished with a broad 

 corrugated limbus and with a brown coarse neuration. Metopidium high and crested. 



H. nodosa is of a concolorous shining coal-black. The tegmina are ochreous and 

 diaphanous at the tips. Legs black, except the hind pair, which are rufous. The 

 posterior process is contorted into segmental knots. 



Hub. The Kameroons, W. Africa. Size 4x2 millimetres. 



Allied to Sphongophorus. 



MiCROSCHEMA MUCRONATA, sp. n. (Plate 21. fig. 4.) 



Larger. Pronotum rising perpendicularly from the frons into a pointed dorsal process, 

 obtvise in the outline and continued as a straight line to the sharp posterior apex. 

 Suprahumerals rather short and divergent. Colour bright red, with punctured dots. 



* "Afi/ia, a knot. 



I 



