66 ME. smith's desceiptions of hymenoptebous insects 



the thorax, quadrate, strongly punctured, with the vertex smooth and 

 shining. Thorax coarsely punctured and produced anteriorly into 

 elevated tubercles ; the scutellum elevated ; the metathorax coarsely 

 punctured. Abdomen smooth and shining. 



The male exactly agrees with the female in colour and form, but has 

 more red joints at the base of the antennae, and has no annulus at their 

 extremity ; the posterior legs are rufo-fuscous. 



Hab. Makassar. 



Gen. Agathis, Latr. 



1. Agathis penetrans, a. flavo-ferruginea ; antennis nigris; alis 

 flavo-hyalinis, apice fuseis. 



Female. Length 4i lines. Reddish yellow, with the eyes, flagellum, 

 and ovipositor black ; the scape ferruginous ; the face finely punc- 

 tured, with a deep fossulet on each side of the clypeus. The thorax 

 with two oblique lines on the mesothorax, which meet at the base of 

 the scutellum — between these are two longitudinal grooves ; the scu- 

 tellum prominent ; the metathorax coarsely reticulated ; the posterior 

 tibiae and tarsi wanting ; wings yellowish hyaline, slightly fuscous 

 towards their apex, and brilliantly iridescent, the nervures pale tes- 

 taceous, the costa ferruginous. Abdomen smooth and shining. 



2. Agathis rugifrons. A. nigra ; palpis, pedibus anterioribus et 

 intermediis ferrugineis ; alis fuseis, basi hyalinis. 



Male. Length 31 lines. Black ; the labrum, mandibles, palpi, anterior 

 and intermediate legs, pale ferruginous ; the face coarsely punctured, 

 with a deep fossulet on each side of the clypeus ; the vertex and 

 thorax anteriorly with large, deep punctures ; the metathorax with 

 three central broad grooves which have a few transverse carinae ; the 

 sides of the metathorax, and the posterior legs, densely covered 

 with short glittering hoary pubescence ; the wings fuscous, with their 

 base hyaline, the nervures and stigma black. The abdomen smooth 

 and shining. 



Fam. CHEYSIDID^, Leach. 



Gen. Sttlbum, Spin. 



I. Stilbum splendidum, Fabr. Syst. Piez. p. 170, 1. 

 Hah. Celebes ;Aru; Java; Bengal; Madagascar; Senegal; Gambia; 

 Cape of Good Hope, Port Natal. 



Gen. Chrtsis, Latr. 



1. Chrysis AFRICANS. C. viridi-cyanea, purpureo variegata; capite 

 thoraceque confertissime punctatis; abdominis segmentis apicalibus 

 dentibus sex armatis. 



Length 5 lines. The head and thorax green, the former with the front 

 blue and a black stain between the ocelli ; the thorax with dashes of 



