CATALOGUE OF 



head, and there extends to the tip of the vertex. Head smooth ; tip of the 

 vertex flat, hexagonal ; front thinly punctured, with four strongly-marked 

 keels, which diverge slightly towards the face. Eyes lurid, elliptical. 

 Antennae testaceous. Protborux finely scabrous, slightly widening hind- 

 ward ; keel very slight, interrupted by the distinct transverse impressed 

 lines; fore border and sides slightly rounded; hind border slightly 

 elongated and angular. Prosternal spine slender, slightly acute. Abdo- 

 men whitish testaceous, with a narrow ferruginous band on the hind border 

 of each segment. Hind femora as long as the abdomen, with whitish 

 "angular bands on each side; hind tibiae a little shorter than the hind 

 femora, their spines white, with black tips. Fore wings cinereous, as long 

 as the body; veins ferruginous. Hind wings pellucid, pale yellow towards 

 the base and along the interior border. Length of the body 14 15 lines ; 

 expansion of the fore wings 32 34 lines. 



a, 6. Oajaca. From M. Salle's collection. 



ACRIDIUM MAEGINALE. 



Mas. Luteum, sat r obits turn ; fastigium breve, transverse subellipticum ; 

 frons scabra ; antenna nigrce, basi lutece ; prothorax brevis, aspere 

 sealer, vix carinatus, postice sublatescens, margine antico vix inciso ; 

 prosterni spina crassa, subacuta ; abdomen nigrum, basi fasciisque 

 dorsalibus rufis, apicejtavo ; pedes nigro vittati, tibiis posticis nigris 

 testaceo unilineatis ; ala anticoe pallide fuscce, corpore paullo 

 breviores ; alee postica cinerece, fusco marginatce. 



Male. Luteous, rather stout. Head smooth; tip of the vertex short, 

 transversely subelliptical, with two excavations; front scabrous; keels 

 slight; inner keels slightly converging towards the face; outer keels 

 slightly diverging. Eyes elliptical, dark red, rather prominent. Antenna 

 black, Inleous at the base. Prothorax short, roughly scabrous, slightly 

 widening hindward ; keel hardly indicated; transverse impressed lines 

 well defined; fore border very slightly notched in, the middle; sides and 

 hind border rounded. Prosternal spine thick, slightly acute. Abdomen 

 black ; dorsum with red bands, wholly red towards the base ; tip yellow. 

 Femora and four anterior tibiae striped with black; hind femora shorter 

 than the abdomen; hind tibiae black, with a testaceous line on the outer 

 side, a little shorter than the hind femora ; hind tarsi black, with a yellow 

 line on the outer side. Fore wings pale brown, a little shorter than the 

 body ; veins pale luteous. Hind wings cinereous-hyaline, broadlyi brown 

 at the tips, and narrowly brown along the exterior border; veins 

 black, red towards the base and along the interior border. Length of the 

 body 13 lines ; expansion of the fore wings 27 lines. 



a. Para. From Mr. Bates' collection. 



ACRIDIUM MACULIFEEUM. 



Mas. Testaceum, sat validum ; fastigium convcxum, antice attenuatum ; 

 prothorax brevis, punctatus, vix carinatus, piceo sexvittatus, postice 

 lutescens ; prosterni spina longa, gracilis, obliqua, compressa, meso- 

 slernum non a (.ting ens ; abdominis latera nigro nolata ; femora pos- 

 tica nigro extus trimaculata, intus bimaculata ; alee anticce cinerece, 

 testaceo venosce, corpori (tquilongce. 



