62 NOTES ON CHALCIDI;E. 



Female. — Luteous. Mandibles tawny. Antennae slightly setose. 

 Abdomen sometimes tawny, tbinly setose towards the tip, which is 

 pale testaceous. Wings pellucid ; veins pale testaceous. Leugtb of 

 tbe body 2 — 2i lines. 



Worker ? — Testaceous. Mandibles tawny. Length 1 line. 



Genus IDARNES. 



I. transiens. Fcem. — Lutescens ; caput transversum ; antennae 

 fusca?, 10-articulatae, basi pallide flavae ; prothorax longi-conicus ; 

 petiolus brevissimus ; abdomen lanceolatum, thorace paullo longius ; 

 oviductus corpore plus duplo longior, basi tubiformis ; femora sub- 

 incrassata ; alae diaphanae, venis palhde flavis. 



Female. — Luteous, slender, shining, nearly smooth. Head 

 transverse, sbort, as broad as the thorax ; front erect. Eyes distinct. 

 Antennae brown, clavate, 10-jointed, pale yellow at the base ; first 

 and second joints long, slender; third and following short, transverse. 

 Prothorax elongate-conical, rather flat. Metathorax long. Petiole 

 very short. Abdomen lanceolate, a little longer than the tborax. 

 Oviduct setose, much more than twice the length of the body, tubi- 

 form and like the body in colour towards the base ; sheaths black and 

 with the usual structure from thence to the tip ; the tubiform part as 

 long as the abdomen. Legs short, stout ; coxae long ; fore femora 

 incrassated ; four posterior femora slightly incrassated ; tibiae with 

 two apical spines. Wings pellucid ; veins pale yellow ; ulna longer 

 than the humerus ; radius nearly as long as the ulna ; cubitus some- 

 what shorter than the radius, descending nearly directly to the disk. 

 Length of the body 1 line. 



This species has also been found in Ceylon by Dr. Thwaites. 



I. stabilis. Fa,m. — Aureo-viridis ; antennae nigrae, basi pallide 

 flavae ; oviductus corpore duplo longior, basi gracilis ; pedes pallide 

 flavi ; alae diaphanae. 



Female. — Golden green, much like the preceding species in 

 structure. Antennae black, clavate ; first joint pale yellow. Sheaths 

 of the oviduct black, thrice the length of the body, with the usual 

 structure, not tubiform towards the base. Legs pale yellow. Wiugs 

 pellucid ; veins pale. Length of the body \ line. 



In the structure of the apical part of the abdomen I. transiens 

 retains some likeness t8 Sycobia, which affinity is not observable in 

 I stabilis. 



