MR. HENRY WALTER BATES ON PHASMIDA. 329 
The genus Linocerus of G. R. Gray (Synopsis Phasm. p. 20) appears to be the same as Ramulus, 
and the name will take precedence if the genus is adopted. 
BACTERIA CYRTOCNEMIS, n. sp. B. cylindrica, viridis, calamum viridem simulans; 
eapite valde convexo, vertice spinis duabus armato ; thorace inermi ; abdominis seg- 
mento dorsali ultimo apice emarginato; operculo vaginali angustato, depresso, ab- 
dominis apicem haud superante; stylis analibus brevibus, rectis; pedibus valde an- 
gulatis, modice elongatis, femoribus intermediis curvatis prope basin spinis foliaceis 
binis utrinque armatis (fæm.).—Long. corp. 5”; anten. 3"; mesothor. 1" 3; me- 
tathor. 103”; abdom. 2" 6”. (Pl. XLIV. f. 10.) 
Head with the crown much raised, the front part of the elevation having two strong 
and short, acute spines directed obliquely forwards. Thorax unarmed. Abdomen cylin- 
drical to the apex ; the apical segment equal in length to the preceding, its apical edge 
triangularly emarginate; the vaginal operculum narrow, not at all convex, pointed at 
the tip, and not passing the apex of the abdomen; anal styles short, straight, obtusely 
pointed. Legs moderately stout, scored between the raised lines, which are strongly 
elevated and compressed ; the fore and hind legs are elongated and simple; the middle 
femora are strongly curved, and have, at one-fourth their length from the base, on each 
side, a flattened expansion divided into two tooth-like points. The basal joint of all 
the tarsi is much elongated. The colour of the entire insect is pale green, and in life it 
bears the closest resemblance to a stalk of grass, or rather the midrib of a palm-leaflet. 
Hab. One example, taken at Ega on the Upper Amazons. 
BACTERIA LATICAUDA, n.sp. B. cylindrica, tenuis, glabra, olivaceo-viridis, capite pro- 
thorace pedibusque rufescentibus ; capite inermi ; abdominis segmentis tribus apica- 
libus dilatatis, segmento ultimo apice late emarginato; stylis analibus brevibus, 
rectis, filiformibus; pedibus elongatis, femoribus quatuor posticis apice subtus bi- 
spinosis et denticulatis (mas).—Long. corp. fere 5"; anten. 4" 3" ; mesothor. 1" 3”; 
metathor. 1021"; abdom. 2” 5”. (Pl. XLIV. f. 112.) 
Head oval, scarcely convex, unarmed, reddish. Antenne very long, dusky. Meso- 
and metathorax dark green, very smooth, and slightly shining, scarcely enlarged at the 
insertion of the legs. Abdomen dark-green, light-brown towards the apex; the three 
apical segments of nearly equal length (the apical one the shortest), each being about 
half the length of the sixth segment ; the seventh is strongly dilated from base to apex ; the 
eighth is of greater width, its sides being only moderately deflexed and its angles rounded ; 
the ninth or terminal segment is less broad, and of nearly square shape, but convex 
above, its front edge broadly excised, its margins smooth, not thickened, and its angles 
prominent but obtuse; the anal styles do not project beyond the sides of this segment, 
. but are pendent, short, and nearly straight; the terminal ventral segments are very 
gibbous. The legs are long, slender, and of a reddish hue ; they are unarmed, with the 
exception of the apical part of the four posterior femora, which, beneath, are furnished 
with a row of denticulations, two of which are larger than the rest, and spiniform ; the 
basal joint of the tarsi is quite simple, being neither compressed nor crested. 
Hab. One example, taken at Ega on the Upper Amazons. 
VOL. XIV. 9 A 
