502 LIST OF HOMOPTEROUS INSECTS. 



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16. Pterygia exaltata, Fem. 



Nigra ; prothorax aspertis, punctatus, spinosus, guinque-comutus ; 

 cornua dtui antica majora erecta parallela ; cornu posticum 

 ahdomen superans^ tricarinatum, ferrugineo varium ; tarsi 

 Jlavi ; alcB anticcB fusccB, ferrugineo guttata, apice alhido 

 maculatcB ; alcB fosliccE cinerece. 



Black : face conical, concave : eyes large : fore-chest very 

 roughly punctured, beset with short spines, with a slight ridge in 

 front, armed above the head with two oblong, upright parallel horns 

 which are convex on the outer side anl^ concave on the inner side ; 

 behind them there is a smaller horn, and a still lower one rises at 

 one-third of the distance between the latter and the tip ; hind part 

 convex, spindle-shaped, extending beyond the tip of the abdomen, 

 with three ridges, partly ferruginous : tarsi yellow : fore-wings dark 

 brown, roughly punctured for half the length from the base, with 

 some ferruginous dots in the disk, and a whitish spot at the tip ; 

 hind-wings gray. Length of the body 2 lines ; of the wings 3 lines. 



a. Brazil. Presented by John Miers, Esq. 



17. Pterygia varia. 



Ferruginea ; prothorax fiaviis , ferrugineo varius, bicornutus, fascia 

 obliqua fiavo-alha utrinque omatus ; cornu anticum supra 

 caput erecturn, apice dilatatum ; cornu posticum abdomen su- 

 perans, compressum, serratum, subundulatum ; pedes fulvi ; 

 alcB anticcB fulvo varice. 



Body ferruginous : front transverse, with an indistinct middle 

 ridge, slightly convex on each side, very concave where it joins the 

 epistoma, its length rather more than half its breadth ; epistoma con- 

 vex in front, a little dilated on each side, a little longer than broad : 

 fore-chest yellow, ferruginous here and there, armed above the head 

 with a short horn which is curved backward, slightly compressed at 

 its base, widened and quadrilateral at its tip where the compartments 

 are semi-ovate and slightly concave ; behind it and a little beyond 

 its tip is an upright conical protuberance ; from thence a compressed 

 serrated and slightly undulating horn extends beyond the tip of the 

 abdomen ; an oblique yellowish-white band extends from the fore- 

 chest to the breast on each side between the eye and the shoulder 

 where there is a large yellow knob : legs tawny ; fore-wings lan- 

 ceolate, punctured, ferruginous, partly tawny: hind-wint>s almost 

 colourless. Length of the body H hne; of the wings 2 lines. 



a. Columbia. From Dr. Cuming's collection. 



