226 Natural History Buli>etin. 



Prothorax twice as wide as long, armed at sides with three re- 

 curved spines, elytra with one discal line, antennae geniculate. 



Rhexius, Lee. 

 d^ Body depressed, antennoe thicker towards the apex. 



yi Tarsi with a single claw, antennal club three-jointed, vertex arcuately 

 impressed, not produced in front. 



Body broader, lateral margin of the pronotum crenate, prostemum 

 carinate, fourth dorsal segment not prolonged. 



Thesium, Casey, 



Form convex, not depressed, dorsal abdominal border moderate, 



slightly retuse, dorsal segments five, subequal, the fourth not 



prolonged, visible ventral segments five, the two basal ones 



longer. ..... Trimioplectus, Brendel. 



Form depressed, linear, abdominal border wide, retuse, the three 

 basal segments equal in length, the fourth prolonged, consist- 

 ing of two segmicnts united, ventrals six in female, seven in 

 male, of equal length. - - - Euplectus, Leach. 



Form depressed like Euplectus, prosternum carinate, the fourth 

 dorsal segment not prolonged, eyes of female rudimentary. 



EUTYPHLUS, Lee. 



Body slender, pronotum with lateral longitudinal grooves, pro- 

 sternum carinate, fourth dorsal not prolonged. 



F.\Li.scus, Casey. 



f^ Tarsi with two equal claws, body linear, antennal joints gradually slightly 

 larger towards the apex. Faronus, ^?/^e. 



Ceophyllus, Lccontc («'■', I hide, ov/jjw, a leaf). 



Antennal tubercles transverse, contiguous, antennae eleven- 

 jointed, palpi with the two terminal joints lamellate. Pubes- 

 cence short, appressed. Tarsi with two equal claws, anterior 

 femora each with three strong spines. Body elongate, not 

 compact. 



C. -MONiLis, Lcc. Cinnamon-brown, impunctate; length, 

 3.3 mm. Plate VI., Figs. 7, S and 9. Head from base to 

 frontal margin as long as the prothorax; width between (but 

 ex'cluding) the eyes, three-fourths that of the prothorax. Base 

 evenly rounded, tempora not prominent, as long as the eyes. 

 Frontal tubercles transverse, divided by a fine fissure which 

 ends in a deep, oblong impression one-third the length of the 

 head. Eyes not prominent, facets fine. Disk evenly vaulted. 



