ACRIDID,E. 715 



Female. Dingy tawny, stout. Head and prothorax with four 

 blackish irregular stripes. Head smooth, short, with some whitish marks 

 on each side; tip of the vertex truncate-conical ; front very thinly punc- 

 tured ; keels slight, slightly diverging towards the face, which they do not 

 reach ; a piceous lanceolate streak on each side between the eye and the 

 mouth. Eyes subelliptical, rounded oil the hind side. Prothorax finely 

 scabrous, with a nearly flat disk and with three slight keels ; transverse 

 impressed lines slight; fore border almost straight; sides and hind border 

 rounded. Prosternal spine pale testaceous, transverse, broadly notched, its 

 breadth more than twice its thickness. Legs with some piceous marks; 

 hind femora broad, as long as the abdomen, luleous beneath and on the 

 inner side, where there is a broad black stripe ; hind tibiae luteous, shorter 

 than the hind femora, irregularly streaked with black; spines black, luteous 

 at the base. Fore wings cinereous, shorter than the abdomen, with several 

 patches and spots formed by blackish veins; veins elsewhere ferruginous. 

 Hind wings pellucid. Length of the body 13^ lines ; expansion oi the fore 

 wings 18 lines. 



a. South Africa. Presented by Sir A. Smith. 



2. PLATACANTHUS CERVINUS. 



Foem. Cervinus, robustus ; caput longiusculum,fastigio piano transverse 

 subpentagonali subcarinato ; antennae piceae, gracillimce, basi pallidae ; 

 prothorax brevis, subtuberculatus, subcarinatus ; prosternum jugo 

 transverse latissimo ; femora postica lalissima, intus rufa, fascia 

 subapicali apiceque rufis ; tibiae postica rufae ; alee anticte cinereae, 

 basi cervinae, abdomine paullo longiores; alee poslicce diaphance. 



Female. Fawn-colour, stout. Head rather long; tip of the vertex 

 flat, transverse, subpentagonal, slightly keeled ; front thinly punctured, 

 with four very slight keels, which diverge towards the face. Eyes ferru- 

 ginous, subelliptical, much rounded on the hind side. Antennae piceous, 

 very slender, pale towards the base. Prothorax short, thinly and minutely 

 tuberculate, with a slight keel and with four slight transverse impressed 

 lines ; lateral keels indeterminate ; fore border nearly straight ; sides 

 slightly angular; hind border much rounded. Prosterual spine forming a 

 very broad transverse ridge, which occupies nearly all the space between 

 the fore COXEB. Abdomen reddish above at the base. Hind femora very 

 broad, as long as the abdomen, piceous at the tips, red on the inner side, 

 with a piceous subapical band on the upper side; hind tibiae red, a little 

 shorter than the hind femora, their spines with black tips. Fore wings 

 cinereous, fawn-colour towards the base, a little longer than the abdomen. 

 Hind wings pellucid; veins black, pale towards the base and along the 

 interior border. Length of the body 14 lines; expansion of the fore wings 

 20 lines. 



a. Australia. Presented by the Haslar Hospital. 



3. PLATACANTHUS INCLUDENS. 



Fo3m. Fulvus, gracilis, sublus testaceus ; caput et prothorax niqro 

 bilineata ; caput nigrum, vitta guttulari nigra, fastigio hexagonali; 

 antennae testacece; prothorax brevis, subcarinatus, margine postico 



