■932 MR. G. A. K. MARSHALL ON [Dec. 11, 



Six species of Cyclomus iiave been described previously, and the 

 following synoptic table may help to distinguish thera : 



1. (2.) ' Third tarsal joint not hilobate ; scrobes broad and deep, 



reaching- right up to the eyes, their edges continued so as 



to form the ocuhir orbits C. simiis Wied. 



2. (1.) I Third tarsal joint strongly bilobate ; scrobes foveiform 



apically, very shallow or even obsolescent behind, being 

 continued as faint oblique lines well below the eyes. 



3. (4.) Prothorax broad, quite plane, with a deep excision on each 



side about middle C. planicollisVer. 



4. (3.) I Prothorax convex, sides not excised. 



5. (14.) ! El3ftra with the alternate intervals elevated or tuberculate. 



6. (9.) Eyes situated on the superior margin of forehead ; pro- 



thorax not, or only obtuselj', carinate. 



7. (8.) ; Rostrum with a narrow central furrow C Soops Boh. 



8. (7.) ! Rostrum without a central furrow C. languidtis Boh. 



9. (6.) Eyes lateral ; rostrum without a furrow. 



10. (11.) Prothorax without a central carina; eyes subpedunculate. 



C. eminith(s ]5oh. 



11. (10.) i Prothorax with a verj' distinct narrow central carina ; eyes 



prominent but never subpedunculate. 



12. (13.) Tubei'cles on elytra bearing long erect setae ; legs covered with 



very long tine hairs C. dast/pus Germ. 



13. (12.) Tubercles on elytra with very short depressed sette; legs 



with short recumbent pubescence C. algoensis, sp. nov. 



14. (o.) I Elytral intervals all perfectly smooth and of equal height. 



' C simplex, sp. nov. 



C. simus Wied. has been redesciibed by Pascoe (Ann. N, H. 

 (5) XX. p. 354, 1887) under the name of Exaetocleres scabrijjennis. 



MYORRHmUS LONGSTAFFI, Sp. nov. 



Long. 3l-3f, lat. 2-2i mm. 



Colour entirely black, uniformly and faii-ly densely covered 

 with light green scaling and closely set with short suberect pale 

 setfe. 



Head shortly conical, densely squamose ; eyes depressed and 

 closely approximated. Rostrum elongate, as long as head and 

 prothorax, strongly and regularly curved, compressed dorsally 

 towards base (there being a broad lateral furrow from the 

 antenna to the eye), but flattened and slightly spatulate at the 

 apex ; upper surface not gibbous at the insertion of the antennse, 

 but with a short shallow central furrow at that part, basal portion 

 punctate and squamose, apex and under sxirface bare shiny and im- 

 j)unctate ; colour black. Antennce inserted about middle of rostrum, 

 black, with the base of scape dark ferruginous ; scape moderate, 

 slightly curved, gradually clavate and as long as funicle without the 

 club. Prothorax transverse, truncate at base and apex, the latter 

 shallowly constricted and much narrower than the base, sides 

 strongly rounded, broadest about middle ; vipper surface evenly 

 convex, with fine shallow punctuation concealed by the scaling. 

 Elytra short, subglobose, their sides strongly rounded, broadest 

 before middle ; upper surface convex with fine distinctly punctured 

 strife, the intervals smooth and impunctate. Legs feiTuginous 

 brown, the femora darker ; the latter with green scaling, tibise 

 with depressed whitish seta3. 



