262 



Agetinus. . 



Of this genus Lef evre described the sides of the prothorasr 

 as angularly undulated, and the tibiae as simple. But even 

 on many specimens of the typical species the sides of the pro- 

 thorax are evenly rounded in the middle ; evidently Black- 

 burn regarded the sides of the prothorax as of minor import- 

 ance, as in aequalis they are not at all angulate in the middle. 

 In suhcostatus the tibiae are strongly ridged, but the four 

 hind ones are not notched near the outer apex (as in 

 Rhyparida, Tomyris, etc.) ; but on several species (including 

 aequalis) here referred to the genus, the front tibiae are con- 

 spicuously notched, so that they cannot be regarded as 

 simple. Of the other species referred by Lef evre to the genus 

 I am regarding Gelnjjtera genicidata as a true GeJoptera 

 (although it is very close in many respects to suhcostatus), 

 and as but doubtfully synonymous with corinthius; CoJaspis 

 jugularis is also regarded as belonging to Gelopfera; Colaspis 

 australis may be almost anything from its description. In 

 the majority of species the elytra have several oblique impunc- 

 tate spaces, and on a few of them these are moderately 

 elevated, giving a subcostate appearance to those organs. The 

 front margins of the prosternal episterna are oblique and' 

 usually quite straight, the flanks have fairly large punctures, 

 usually sharply defined, but occasionally partly obscured by 

 shagreening. All have edentate femora. On all of them the 

 second and third joints of the antennae are subequal, or the 

 second is slightly (sometimes distinctly) the longer, the five 

 apical joints are stouter than the five preceding ones, and 

 the eleventh is usually about once and one-fourth the length 

 of tenth. The colour of the legs is sometimes variable. 

 Aequalis, ohliquus, and admirahilis are very different in 

 general appearance to suhcostatus, and should it be eventu- 

 ally decided to regard the genus as forming a section only 

 of Geloptera, it may be desirable to generically separate them. 

 Following is a table of the species: — 



A. Elytra strongly convex along middle. 



a. Greatest elevation of elytra distinctly near 



base ohliquus 



aa. Greatest elevation not distinctly near base. 

 b. Some punctures on apical slope of elytra 



transversely confluent admirabilis 



bh. No punctures transversely confluent there aequalis 

 A A. Elytra gently convex. 



B. Medio-apical punctures of prothorax longi- 

 tudinally confluent confluens 



BB. Punctures at apex not so confluent. 

 C. Prothorax with a conspicuous impunctate 



median line on basal half cicatricosus. 



