2 ARKIV FÖR ZOOLOGI. BAND 14. N:0 31. 



first, third considerably longor than second, fourth longer 

 than second, but shorter than third. Pronotum with a rather 

 short erect pilosity, lateral margins straight, basal margin 

 also straight, oblique in front of elytral base, the disc rather 

 coarsely and densely punctate, excepting the impunctate 

 confluent calli which have a round median impression 

 posteriorly. Scutellum rather convex, less distinctly punctate 

 than the pronotum but with a similar pilosity. Corium and 

 clavus very thickly and rather finely punctate, very finely 

 pubescent, cuneus more than twice longer than broad. Legs 

 very long, före and middle femora narrowed toward apex, 

 hind femora linear, as long as elytra, hind tibiae as long as 

 body including elytra, first tarsal joint longer than the others 

 together. Length, 4,5 mm., incl. tegm. 6 mm. 



Upper Amazonas (Oliven^a). — Mus. Stockholm. 



Remarkable by the very long antennae and legs. The 

 length and structure or the rostrum cannot be seen in the 

 carded type. 



Cylapus ruficeps n. sp. — Slightly shining, above 

 fuscous-black, beneath black, head rufous, corium with a 

 large triangulär subpical dull black area which anteriorly 

 reaches nearly to middle of costal margin and posteriorly 

 occupies the whole width of the corium, coUar and extreme 

 basal margin of pronotum, apex of scutellum, a vitta reaching 

 from middle to apex of clavus, two spöts of corium immedi- 

 ately before the dull black area (the outer one larger, 

 obliquely transverse, the inner one smaller, obliquely longi- 

 tudinal), apical margin of corium, basal margin of cuneus, 

 posterior börder of metasternum,metapleura (including orificia), 

 base of venter and a fascia to its last two segments white; 

 antennae, rostrum and legs black, last two antennal joints 

 fuscous, base of third antennal joint and an annulation just 

 behind middle of tibiae påle yellow. the annulation of the 

 hind tibiae very much broader, extended almost to their 

 apices. Head seen from before much higher than broad, 

 eyes strongly raised above vertex, their vertical diameter 

 half the length of genae, vertex twice broader than an eye, 

 front pubescent, antennae almost twice the length of body 

 (incl. elytra), first joint as long as pronotum and head 

 together and one-half longer than width of head, gradually 



