( 250 ) 



not (|uite reachiug a lateral marjrinal aiitemeJiaii spot, behiinl tho lateral arm the 

 cross is rouiidedly sinuate, the sinus extending to second stripe, ajiex of cross 

 eraarginate at suture, the angles produced laterad into a narrow undulating band, 

 which reaches lateral margin ; a large apical spot in sutural angle, snbtruncate 

 on discal side. Mesosternal epimeruiu and a lateral apical sjiot on metasternum 

 creamy. Legs black, femora and base of tibiae rufous. 



Length, 6 mm. 



Ilab. Cali, Colombia, November— December 18'.i4 (W. Rosenberg). 



1 ?. 



10. Gymnognathus editha spec. nov. 



?. Similar to dorsonotatus (1839), Fahrs. Rostrum shorter and broad, less 

 narrowed basad ; mesial carina short, abbreviated in middle of rostrum, jiroduced 

 backwards, disappearing between eyes. Prothorax much shorter than in rhrso- 

 notatus, half as broad again as long, longitudinally plicate on disc, with three 

 clayish vittae, mesial one narrowing frontad, lateral one extending from basal 

 angle obliquely forward, being continuous with the lateral dorsal vitta of the head 

 and rostrum ; lateral carina short, angle obtuse, liut not rounded. Elytra shorter 

 than in dorsonotntiis, clayish grey area similar, but not widened out behind, being 

 expanded between first and fourth stripe and posteriorly rounded on each elytrum, 

 a straight brown line on suture from basal third of elytra, behind the clayish grey 

 area a triangular sutnral spot of the same colour, contiguous with the area or 

 separate, its hinder angles produced laterad ; a thin obli([ue autemediau lateral 

 streak ; apical spot small or absent. IVgidium and anal ventral segment truncate, 

 angles slightly dentiform, the former with a narrow clayish grey mesial vitta. 

 Underside pubescent grey, yellowish clay at sides. Antenna of S rufous beneath, 

 ])rolonged, reaching at least basal third of elytra. 



Length, 5 to 7 mm. 



Hab. Jatahy, Goyaz. 



A series. 



The prothorax of this species is similar to that of r/tticoUis (1806) Jord., but 

 in that species the bidentate p3-gidium is clayish, with a brown mesial vitta, and the 

 last abdominal segment is rounded. 



~ii. Gymnognathus martha spec. nov. 



? . Pygidium and anal sternite rounded, the former white with a small black 

 lateral spot. Black, densely pubescent white ; legs rufous, tarsi and tip of tibiae 

 black. Rostrum a little longer than broad, slightly widening apicad, black-brown 

 at sides ; mesial carina distinct at base, not reaching beyond middle, and not 

 extending to occiput. The latter with small black-brown mesial spot. Prothorax 

 as long as broad, convex, plicate, disc black-brown in anterior half, this colour 

 occupying one-third of apical margin, the area widening behind, gradually more 

 shaded with white, on the posterior half of the disc the black colour shining 

 through the white pubescence ; a mesial basal patch and a smaller lateral one 

 more densely pubescent white, continued beyond carina ; dorsal carina convex at 

 sides; lateral angle 90", but tip rounded off; lateral carina not extending to 

 middle. Elytra with a broad brown-black unteapioal transverse baud, reaching 

 from side to side, sinuous in front, deeply bisiuuate behind on each elytrum ; a 

 subbasal discal round spot fuscous, the brown-black colour shining through the 



