COLLECTED AT BACIIIAN, KAISAA, ETC. lOo 



the peduncle incrassate, rounded anteriorly and truncate behind, with 

 two acute upright spines ; the striation curves round the node in front 

 and is transverse behind ; the apical margins of the second and follow- 

 ing segments narrowly pale testaceous. 

 Hub. Dory. 



This species resembles P. (/eometrica, but is very distinct. We are now 

 acquainted with more than a dozen of these striated species of Ponera, all 

 differing in the direction and depth of the striation, which is in each ex- 

 tremely beautiful. 



7. PoNERA SIMILLIMA. P. fusco-bruunea ; capite postice fusco-nigro ; 

 oculis ovalibus, hirtulis ; ocellis distinctis ; alis hyalinis ; abdoraine 

 elongato, apice pallide testaceo. 

 Worker. Length If line. Darkish brown, some individuals reddish- 

 brown ; the head dark fuscous and semi-opake above the insertion 

 of the antennae ; the head anteriorly, the mandibles, antennae, and 

 legs ferruginous ; the eyes ovate, placed in the middle at the sides of 

 the head. Thorax oblong-ovate, the metathorax obliquely truncate. 

 Abdomen : the scale of the peduncle incrassate, vertical ; its superior 

 margin slightly emarginate ; a constriction between the first and 

 second segments ; the apex pale testaceous. 

 Hab. Dory. 



This minute species very closely resembles the P. contractu of Europe ; 

 it differs principally in having the eyes situated in the middle of the sides 

 of the head, in the European insect they are smaller and placed forward at 

 the base of the mandibles ; the form of the scale is different, and the body 

 is finely pubescent ; there is a species from Brazil, P. ruficornis, very like it. 



Gen. Ambltopone, Erichs. 



1. Amblyopone castaneus. a. ferrugineus, nitidus punctatus; capite 

 antice longitudinaliter striato ; margine interno mandibularum con- 

 fertim dentato. 



Worker. Length 44 lines. Ferruginous ; head wider than the thorax, 

 slightly rounded at the sides, and emarginate behind, finely and 

 distinctly punctured above, anteriorly it is longitudinally striated ; 

 the anterior margin fuscous ; the antennje short and stout ; the fla- 

 gellum clavate ; the mandibles with a row of short, stout, acute teeth 

 on their inner margin ; the head has a few scattered erect hairs. 

 Thorax : the prothorax subglobose, strongly punctured in front ; tlie 

 mesothorax short and transverse ; the metathorax oblong, parallel, and 

 punctured ; the apex transversely striated ; the legs short, stout, and 

 pubescent. Abdomen : the basal segment strongly punctured, the 

 second and following segments delicately and veiy sparingly so ; the 

 first and second segments deeply constricted at their margins ; the 

 apex pointed and pidjcscent, the pubescence ferruginous. (Plate L 

 fig. 6.) 



Hab. Bachian. 

 LINN. PEOC. — ZOOLOGY, SUPPLEMENT. 8 



