86 ME. ¥. SMITH ON NEW SPECIES 



2. Trypoxylon gracillimum. Smith, Proc. Linn. Soc. vii. p. 35. 

 Hab. Morty Island. 



G-en. Ceabeo, Fair. 



1. Crabro (Rhopalum) LiGNARius. C niger ; abdomine petiolato, 

 segmentis secundo tertio quartoque bimaculato flavis ; scapo, coUari, 

 tuberculis, scutelloque maeulis duabus flavis ; tibiis tarsisque ferru- 

 gineis. 



Female. Length 4i lines. Opake black ; the head large, wider than 

 the thorax, and subquadrate; the ocelli in a curve on the vertex; the 

 scape and a stripe on the mandibles yellow; the clypeus densely 

 covered with silvery pile ; the cheeks have a thin silvery pubescence. 



' Thorax : an interrupted line on the collar, the tubercles, and two spots 

 on the scutellum yellow ; the sides of the thorax with hoary pubes- 

 cence 5 wings subhyaline and iridescent ; the apex of the tibiae and 

 the tarsi ferruginous, the claw-joint rufo-piceous. Abdomen: petiole 

 black, the first segment with an ovate spot on each side, the two fol- 

 lowing segments with an oblong-ovate spot on each side ; beneath 

 immaculate. 



Ha6. Morty Island, 



Very closely allied to the Meffopodium Westermanni of Dahlbom. 



2. Crabro Bucephalus. C. niger; capite magno, ocellis triangu- 

 lariter ordinatis in vertice ; metathorace dorso longitudinaliter striato. 



Female. Length 3 lines. Black : head large, wider than the thorax, 

 subquadrate, smooth and shining; the ocelli in a triangle in the 

 centre of the vertex ; the clypeus and cheeks with a silvery pubes' 

 cence ; the scape yellow in front ; the mandibles ferruginous at their 

 apex ; the clypeus produced in the middle into a blunt tooth. An 

 interrupted line on the collar, the tubercles, two ovate spots on the 

 scutellum, the postscutellum, the base of the tibiae above, and the 

 basal joint of the tarsi pale yellow; the tarsi reddish brown; the 

 calcaria pale ; a smooth enclosed space at the base of the metathorax, 

 which is divided in the middle by a longitudinal channel which runs 

 to the apex of the metathorax ; the wings subhyaline and iridescent, 

 the tegulse rufo-testaceous. The abdomen smooth and shining, with 

 the apical segments slightly pubescent. 



Hah. Morty Island. 



G-en. MiMESA, BlmcTc. 



1. MiMESA carbonajiia. M. atra, leviter griseo pubescens; facie 

 argenteo pubescente ; metathorace rugoso. 



Male. Length 4^ lines. Black and shining, the disk of the thorax 

 and the abdomen with a chalybeous reflexion ; thinly sprinkled wdth 

 grey pubescence, which is most dense and long on the metathorax ; 

 the face covered vrith silvery pile ; the antennse fulvous beneath, the 

 scape black ; the palpi and mandibles yellow, the tips of the latter 

 ferruginous. Thorax: the metathorax coarsely rugose; the wings 



