226 Arthur M. Lea : 



Chrts^omelidae. 



Mr. Davey sent a small species of Agetinus as from a nest 

 of Iridomyrmex nitidus, but such a typically leaf-eating species 

 was almosit certainly there by accident. In sending it he wrote, 

 " This was surrounded by ants, and though not in the nest 

 projier, was roofed over by the ants." 



Erotyllidae. 

 Tritomidea tos?naniae, n.sp. (Fig. 26.) 



Black, some parts diluted with red, appendages reddish 

 castaneous ; shining and glabrous. 



Elliptic, moderately convex. Head immersed in prothorax 

 up to the eyes, widely transverse ; with rather dense but small 

 punctures ; clypeal suture deep on sides, but feeble across 

 middle. Antennae short, club three jointed, its first joint 

 small but distinctly transverse, the others considerably large 

 and more transverse. Prothorax fully twice as wide as long, 

 sides strongly rounded, and very narrowly margined, apex semi- 

 circularly emarginate and much narrower than base, the latter 

 Avith a large scutellar lobe, but outside of this straight to the 

 margins ; punctures as on head. Scutellum minute. Elytra 

 with outlines continuous with those of prothorax, and with 

 similar margins, widest at about basal fourth, thence regularly 

 rounded and decreasing in width to apex ; finely striate, the 

 striae with very feeble punctures, and the two on each side 

 of the suture were very feeble ; the interstices with small but 

 fairly distinct punctures. Epipleurae moderately wide at the 

 base, becoming very narrow posteriorly. Prosternum wide and 

 smooth, hinder apex gently incurved to middle and feebly longi- 

 tudinally impressed. Intercoxal process of mesosternum about 

 thrice as wide as long. Metasternum slightly longer than two 

 following segments combined, with minute but fairly distinct 

 punctures ; episterna veiy narrow. Abdomen with first segment 

 slightly longer than second and third combined, these equal in 

 length, and each slightly longer than fourth, fifth very slightly 

 longer than third. Femnra rather short, and stout; tibiae 



