( 294 ) 



being ronndedly impressed in figuratus witli ari ochraceoiis tiit't in fiont of the 

 rather deep groove, and sliallowly impressed in Irwcipeiniis with a yeHowish 

 mesial stripe. 



Hab. Surinam, type ; Jatahy, (ioyaz. 



One pair. 



110. Phaenithon nigritarsis spec. nov. 



J ? . Black or brown, legs somewhat rut'escent ; pygidinm, nuderside of body, 

 and legs densely pubescent grey ; tarsi and tip of tibiae black ; upperside brown, 

 marked with grey — namely, a broad mesial vitta on rostrum and head, occupying 

 the whole frous, abrujitly narrowed on occiput, which bears a brown ])atch on 

 each side ; on protonnm a thin iiiterrui)ted or abl)reviated mesial strij)e, dilated 

 at the carina, a broad lateral area continuous with the grey underside, bi- or 

 trisinuate, including a round brown spot ; scutellnm ; on elytra an anchor-shaped 

 basal mark common to both, extending along basal margin to side-margin and at 

 suture a little beyond basal fourth, this mark deeply rounded-excised laterally ; 

 from this brown sinus two processes project basad, the grey basal band being 

 here bisinuate (it is sinuate again at the shoulder); behind the large sinus the 

 grey mark widens out laterad, on the suture it is sinuate ; an oblique series of 

 three spots from before middle of lateral margin obliquely backwards to disc, the 

 two lateral spots confluent in one of our specimens, the dorsal spot situated in 

 the tilth interspace more or less elongate ; at apex of each elytrum a large 

 half-moon, touching suture, except at apical angle, anteriorly obliquely truncate 

 at suture, deeply sinuate in middle and less deeply laterally. 



Rostrum shallowly emarginate. Frons with a very thin mesial carina which 

 is hardly visible under the dense pubescence. Antenna short, segments T and 8 

 broader than long, club short in both sexes, 10 four times as long as broad, 

 11 rounded, hardly as long as broad in cJ, feebly acuminate, broader than long 

 in ?. Prothorax more than half as broad again as long, convex, not impressed 

 mesially, finely rugulose, carina closer to base than in sem/qn'seua, almost evenly 

 concave above, obliipiely flexed forward at side, the lateral oblique portion not 

 longer than the scutellnm. Elytra similar in shape to those of semigriseus, 

 punctate-striate, finely griinulose. Pygidium rounded-triangular, longer than 

 broad, mesially feebly convex in 6. Antecoxal part of jirosternum about one- 

 fourth the width of the coxa. Mesosternal process vertical, flat, rounded-truncate, 

 apex feebly curved backwards. Abdomen of J somewhat flattened, anal segment 

 emarginate in both sexes. 



Length, 6 mm. 



Ilab. Costa Rica (Biolley), ti/jie ; h>ierra de Durango, Mexico. 



'■ISS,\ 'i. 



Differs from semigriscus in the broad mesial vitta of the head, the shorter 

 club of the antenna, the entirely black tarsi, etc. 



111. Phaenithon similis spec nov. 



c? ? . Close to nigritarsis in colour and structure, more elongate. Vitta of 

 rostrum and head touching eyes on frons, then gradually narrowed posteriorly, 

 yellowish grey. Yellowish grey sides of pronofum including a largo brown spot 

 which is mostly connected with the lirown disc ; lateral carina continued to 



I 



