1881.] NEW AFRICAN RHYNCHOTA. 271 



referring most exhaustively to the type species, are too minute if 

 applied to the whole of the allied species of the genus, failing 

 (especially in Tropicorxjpha) in the structural characters of the 

 antennae and rostrum. 



IIalyomorpha versicolor, n. sp. (Plate XXXI. fig. 1, $ .) 



Above pale luteous, irregularly punctured, and shaded with 

 fuscous. Head luteous, with the lateral margins, posterior margins 

 of central lohe (which are angulated and widened to base), and a 

 small curved streak on inner margin of eyes black ; obscurely 

 transversely striate ; lobes subequal in length. Antennae, S, cas- 

 taneous, third, fourth and fifth joints with the apices pitchy and 

 subequal in length ; $ , second joint pitchy, third castaneous, pitchy 

 at apex (remainder mutilated). Pronotum with the anterior por- 

 tion pale levigate; posterior margin of this space very strongly 

 sinuated, basal half clouded with fuscous and strongly punctate ; 

 the lateral margins are ampliated and reflexed, with the anterior 

 angles toothed behind the eyes, lateral angles subprominent and 

 obtusely rounded. Scutellum with a small pitchy callosity in each 

 basal angle, strongly punctate, with some obscure pitchy marks at 

 base, lateral margins, and apex. Corium strongly punctate, clouded 

 and mottled with dark fuscous, and with a small levigate space on 

 disk near apex ; membrane hyaline, with a short transverse pitchy 

 line near base. Abdomen above red, connexivum ochraceous, with a 

 black line at base and apex of each segment. Underside of body 

 somewhat paler ; legs irregularly marked with fuscous or pitchy. 

 Rostrum just passing posterior coxae, with the apex black. 



Long., fS , 13 millims., lat. pronot. ang. 7. 



Long., 2,17 milhm., lat. prouot. ang. 9. 



Hab. Nyassa (Farler). 



It is probable that the difference in size between the sexes is less 

 than that observed between the only two specimens I possess or 

 have seen. This very distinct species, in the structure of the pro- 

 notum, is most aUied to H. refiexa, Sign. 



Tyoma porrecta, n. sp. (Plate XXXL fig. 2.) 



Fuscous, sparingly but coarsely punctate ; head more finely 

 punctate. Antennae ochraceous, with the second joint longer than 

 the third, subequal with the fourth, fifth slightly the longest, and, 

 excepting base, fuscous. Pronotum somewhat verrucose on anterior 

 portion "lateral angles acutely straightened and produced ; apices 

 pitchy, with extreme tips reddish orange ; lateral margins of pronotum 

 and head obscurely black ; margins of connexivum strongly and ob- 

 tusely spinous. Body beneath much darker. Legs pale ochraceous ; 

 apices of femora, bases and apices of tibiae pale castaneous. Rostrum 

 ochraceous, reaching posterior coxae. 



Long. 9 millims., lat. pronot. ang. 6. 



Hab. Camaroons {Rutherford). 



Allied to T. cryptorhynclia. Germ., the South- African and only 

 other known species of this pecidiar and distinct genus, from which 



