EUBXTOMID.E. 13 



to the Sphegigasteridae and still nearer to the Eurytomidae, but, like 

 Axiraa, it is very remote from the centre of attraction round which 

 the other Enrytomidae are clustered. The mai'ks on the prothorax 

 correspond to somewhat similar marks on the prothorax of the 

 European species of Isosoma. 



A. rhophaloides. Mas. — Niger, cinereo subpubescens ; prothorax 

 callis duobus anticis lateralibus transversis luteis ; abdomen basi 

 rufum ; pedes lutei; alae cinereae, nigro venosae. 



Male. — Black, with slight cinereous pubescence. Prothorax with 

 a large transverse luteous callus on each side of the fore border. 

 Abdomen red towards the base ; the red hue occupying most space on 

 the under side. Legs luteous. Wings cinereous; veins black. 

 Length of the body 4 lines. 



Hong Kong. 



Genus EURYTOMA. 



Ratzeburg considers Eurytoma, Isosoma and Decatoma as one 

 genus, and it is difficult to identify the species which he describes as 

 new. All appear to be Eurytomae or Decatomas, and their names are 

 as follows : — E. flavovaria, flavoscapularis, Eccoptogastri, Abieticola, 

 Ischioxanthos, aciculata, striolata, costata, extincta and Pinetorum. 



E. insignis. — Mas. Nigra, fortiter punctata ; antennae submonili- 

 formes, thorace paullo breviores, articulis sublinearibus non dilatatis, 

 clava sublanceolata; petiolus longiusculus; abdomen glabrum,parvum; 

 pedes flavescentes, tibiis posticis femoribusque nigris basi apiceque 

 flavescentibus ; alae diaphanae, nigro- venosae. Fcem. — Antennae 

 thorace multo breviores ; abdomen therace paullo brevius. 



Male. — Black. Head and thorax largely punctured. Head broader 

 than the thorax. Antennae submoniliform, a little shorter tban the 

 thorax ; joints from the third to the seventh nearly linear, verticillate, 

 pilose, not dilated on one side ; club sublanceolate, very much longer 

 than the seventh joint. Petiole rather long. Abdomen compressed, 

 very much shorter and narrower than the tborax. Legs yellowish ; 

 femora and hind tibiae black, yellowish at the base and at the tips. 

 Wings pellucid ; veins black ; ulna thick, less than half the length 

 of the humerus ; radius very much shorter than the ulna, a little 

 longer than the cubitus. Length of the body If line. 



Female. — Antennae much shorter than the thorax. Abdomen a 

 little shorter than the thorax. Length of the body 2J lines. 



The ulna is darker and thicker than that of E. nodularis and of 



