128 MB. smith's descriptions of htmenopterous insects 



ginous beneath. Thorax : the anterior margin of the prothorax, an 

 ovate spot beneath the wings, two narrow abbreviated lines on the 

 niesothorax anteriorly, the tegulae and a minute spot behind them, two 

 spots on the scutellum, and one arcuate line on each side of the meta- 

 thorax bright yellow; the legs ferruginous, the anterior tibiaj yellow 

 in front. Abdomen ; the apical margin of the petiole and of the two 

 following segments yellow. 

 Hab. Bachian. 



Gen. Ehynchium, Spin. 



1. Rhynchium hsemorrhoidale, Fabr. Syst. Piez. p. 259. 



Hab. Bachian ; Amboyna ; Dory ; Cape of Good Hope ; Malanca ; 

 Singapore ; India ; Java. 



Having had the opportunity of examining numerous specimens of this 

 species from all the above localities, I have found it to be most inconstant 

 in colouring : its varieties include the R. sanguineum, and R. parentissimum ; 

 the females from Bachian are black, with a little red on the head and pro- 

 thorax. 



2. Rhynchium metallicum, Sauss.Mon. Guepes Sol. p. 114. 

 Hab, India; Bachian; Sarawak. 



3. Rhynchium iridipenne. R. nigrum, capite thoraceque rude 

 punctatis ; alis fuscis et violaceo splendide micantibus. 



Female. Length 7 lines. Black ; the head and thorax rugose, the ab- 

 domen rather finely punctured ; the clypeus much produced and rather 

 widely emarginate at the apex. Thorax elongate ; the metathorax 

 truncate with the lateral margins rounded ; the wings fuscous, with a 

 splendid violet iridescence. Abdomen with a thin, short cinereous 

 pubescence. 



Hab. Amboyna. 



This insect resembles the JR. metallicum of Saussure, but is much more 

 elongate and more coarsely sculptured. 



4. Rhynchium rubropictum. R. nigrum, capite thoraceque rubro 

 variegatis ; alis flavis, basi nigris ; abdomine rubro fasciato. 



Female. Length 8i hues. Black ; the head and thorax closely and 

 rather finely punctured ; the head brick-red, black behind, and having 

 a black spot in front of the ocelli, and another in the sinus of the eyes ; 

 the antennae and mandibles red. Thorax : the prothorax, two oblique 

 stripes on the mesothorax, which unite a little before reaching the 

 scutellum, the latter as well as the tegulse and anterior legs, brick- 

 red ; the wings yellow, with their base black. Abdomen : opake- 

 black, with a red band on the apical margins of all the segments ; the 

 apical segment entirely red ; beneath black. 



Male. This sex differs in being smaller, in having the head black with 

 a narrow line on the inner and outer orbits of the eyes, and in the 

 clypeus being yellow ; the mesothorax entirely black ; otherwise, it is 

 like the female. 



