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TEN i TREE TER F cin. Se m 
MR. HENRY WALTER BATES ON PHASMIDÆ. 327 
BACILLUS ASPERICOLLIS, n.sp. Femina. Cylindricus, tenuis, pallide luteus; capite 
elongato, haud convexo, lateribus parallelis ; antennis subuliformibus; mesonoto 
dorso levi, lateribus fortiter granulatis, metathorace sublevi; abdomine apicem 
versus attenuato, stylis analibus rectis compressis, operculo brevi; pedibus modice 
elongatis, inermibus.—Long. corp. 2” 10°; cap. 13"; anten. 21"; prothor. 157; 
mesothor. 54” ; metathor. 7" ; abdom. 1" 52^" ; styl. anal. 3”. 
Head elongate, thick, scarce perceptibly narrowed behind, eyes not at all prominent ; 
pallid, dingy-ochreous, with a dusky line on each side behind the eyes. Antenne with 
the basal and second joints depressed (not so wide as the others) the rest thick and 
gradually tapering to the apex. Mesothorax smooth, with the exception of the edge 
of the mesonotum on each side, which has a row of rather sharp, raised granules ; these 
continue also along the edges of the metanotum, but are there much less prominent, and 
remain of the same colour as the thorax, namely dingy pallid ochreous. Abdomen 
smooth, very tapering at the tip, which is furnished with two moderate-sized, com- 
pressed and straight analstyles. "The genital opereulum is very short, similar to that of 
Bacillus Peristhenes (Westw. Cat. plate viii. fig. 2), and scarcely passing beyond the com- 
mencement of the eighth ventral segment. A short anal segment or plate is visible at 
the apex of the terminal (ninth) dorsal segment of the abdomen. Legs moderately short 
(like B. Rossii), and quite unarmed. 
Hab. This insect, which is possibly the female of B. gramineus, is also from Natal. 
BACILLUS GUENZII, n.sp. B. filiformis, levis, inermis, luteo-viridis, meso- metanotoque 
lateribus nigro lineatis; capite oblongo, supra plano; antennis 16-articulatis, meso- 
thorace longioribus; abdomine ante apicem paulo dilatato, segmento dorsali termi- 
nali apice emarginato, segmentis genitalibus fortiter tumidis; stylis analibus bre- 
vibus, rectis; pedibus modice elongatis, inermibus (mas).—Long. corp. 2” o 
anten. 8” ; mesothor. 6” ; metathor. 43°”; abdom. 1” 3”, (Plate XLIV. f. 14 a.) 
Bacillus Guenzii belongs to the same group as B. gracilipes, Stellenboschus, and 
natalis (Westw.). It appears to be most nearly allied to B. Stellenboschus, but differs at 
once from this species by the shortness and linear form of the anal styles. | 
Head oblong, very slightly narrowed behind, sides behind each eye with a longitudinal 
furrow, surface-plane dingy-yellow, dusky on the crown, and with a dusky line on each 
Side; eyes very prominent; antenne 16-jointed, rather more slender than in the allied 
species, basal joint flattened and tumid beneath at the apex. : Pronotum uneven. Meso- 
and metanota with a black streak on each side, dorsal surface (in dried example) red. 
Abdomen filiform, with the three terminal segments of nearly equal length; antepenulti- 
mate dilated towards the apex, dilated sides (together with those of the penultimate) 
deflexed ; apical segment scarcely convex, angles rounded off, tip emarginated in the 
middle; genital segments much inflated, but not reaching beyond the tip of the penulti- 
mate dorsalsegment. Anal styles short, straight, scarcely visible beyond the tip of the 
abdomen. Legs moderately elongated, intermediate pair short (fore leg NL: inter 
mediate 1” 4”; posterior 1" 9”). 
Hab. Natal: from the collections of M. Guenzius. 
