LOCUSTID^. 427 



lobis faleralibus longis Inincatis ; cerci lanceolati, subarcuati ; styli 



lineares ; pedes robusii, breviusculi, spinnsuli ; alee antiea\laliuscul<s, 



femoribus posticis plus duplo lonyiores, casta subrolundata, niurgine 



interiore fere recto; aim posticce diaphan(E,apiee reticulata:, paullo 



longiores. 



Male. Testaceous, very sleiicler. Head elonjiate, a litUe naivower 



than the fore border of ibe prothorax ; keel lanceolate, acute, slightly 



furrowed, a little narrower than the first joint of the antennie; front flat, 



very oblique, hardly extending between the eyes. Eyes tawny, prominent, 



nearly round. Prothorax very thinly tuberculate, with a tuberculate keel 



and with two transverse impressed lines; fore border and hind border very 



slightly angular ; lateral lobes elongated, truncated. Supra-anal lamina 



furrowed. Cerci lanceolate, slightly curved. Subgenital lamina with two 



slender linear styles. Legs stout, rather short, with very minute spines; 



hind femora five-twelftbs of the length of the fore wings ; hind tibiae with 



spines on two of the fore keels. Fore wings rather broad, very minutely 



reticulated, shorter by one line than the hind wings; costa slightly 



rounded; interior border nearly straight; transverse veins between the 



scapular aud the costa ramose towards the base, simple towards the lip ; 



scapular and externo-niedial diverging very slightly from each other beyond 



the middle ; areolets large, regular; interno-medial vein and branch of the 



externo-medial parallel to each other, not forked. Hind wings pellucid, 



minutely reticulated at the tips; veins whitish. Length of the body 



9 lines ; expansion of the fore wings 25 lines. 



Nearly allied to A. carinatum, but the prothorax is much less 

 keeled. 

 a. Ceylon. From the Rev. Mr. Wenham's collection. 



10. Aprion porrectum. 



Mas. Pallide Jlavescente viride, gracile ; capitis carina lanceolata, sul- 

 cata ; antenncB validcc, prothorax subluberculattts, margine antico 

 rotundato, lateribus subrotundalis, margine postico valde rotundato ; 

 cerci cylindrici, graciles ; pedes robusti, spinosi ; ala aquilongcE ; 

 alcE anticcB lata, femoribus posticis plus duplo longiores, costa basin 

 versus subrolundata ; alee poslicce diaphance. 



Male. Pale yellowish green, slender. Head a little narrower than the 

 fore border of the prothorax ; fore part shining, very oblique; keel of the 

 vertex lanceolate, furrowed, much shorter than the first joint of the antennae 

 and not more than half its breadth ; front conical between the sockets of 

 the antennae. Filth joint of the palpi clavate. Eyes brown, round, very 

 prominent. Antennie stout. Piothorax slightly tuberculate, with an 

 indistinct loiaglludinal and two strongly marked transverse impressed lines ; 

 fore border rounded ; sides slightly rounded ; bind border much rounded. 

 Supra-anal lamina elongate. Cerci cylindrical, slender. Subgenital 

 lamina long, slender, with two long styles. Legs stout; femora with two 

 rows of spines, those on the outer side much larger than those on the inner 

 side ; hind femora less than half the length of the fore wings ; four anterior 

 tibiae with two rows of small spines ; hind libiie quadrilateral, with spines 

 on three keels, those on the lower keel very small. Wings of equal length. 



