EUPLECTINI 69 



27 (26). Pronotal disc slightly flattened, and from an oblique point 



of view there is a just discernible elongate depression 



TRIMIOPSIS (in part) 



Pronotal disc with a well formed central fovea or foveoid de- 

 pression 28 



28 (27). Pronotum with a subbasal, transverse, arcuate sulcus 



EUPLECTUS (in part) 



Pronotum with two lateral foveae and a median foveoid de- 

 pression at base, these three areas not connected by a trans- 

 verse subbasal sulcus of any kind 



BARROEUPLECTOIDES, new genus 



29 (25). Posterior coxae not contiguous, either slightly or widely 



separated 30 



Posterior coxae contiguous, or so close that they are virtually so 31 



30 (29) . Posterior coxae slightly separated 43 



Posterior coxae widely separated, the first stemite appearing 

 between them as a transverse plate EUPSENINA (this genus 

 will key out here if the shape of the posterior coxae has 

 not been correctly diagnosed. It belongs in Brachyglutini). 



31 (29). Each elytron with a long, sharply defined, nearly entire dorsal 



stria on the disc, this stria extending for about three-fourths 



of elytral length TOMOPLECTUS 



Each elytron with either (a) a short dorsal stria, (b) a short 

 fusiform dorsal depression from discal median fovea, or (c) no 

 dorsal stria or depression 32 



32 (31). Elytral humeri dentate to denticulate or acutely prominent. . . 33 



Elytral humeri prominent or not, but never dentate or acute . . 34 



33 (32). Base of elytra simply foveate, without a transverse basal 



carina ACTIUM (in part) 



Base of elytra with a transverse carina parallel to the basal 

 elytral margin ACTINOMA 



34 (32). Pronotum with lateral foveae invisible from a strictly dorsal 



point of view 35 



Pronotum with the lateral foveae wholly or partially visible 

 from a strictly dorsal point of view 36 



35 (34). Integument pubescent, punctate to punctulate; subbasal, trans- 



verse sulcus continuing down flank of prothorax to end later- 

 ally each side in a fovea; these fovea are not visible from 

 above, and lie near or on the sides of the prosternum (PI. XI, 



7, 8) MELBA 



Integument glabrous, without punctures or pubescence; the 

 subbasal, transverse pronotal sulcus absent or represented 

 by a just discernible linear impression which ends on the 



sides of the prothorax in a vague depression 



EUPSENIUS (this genus 



