8 ARKIV FÖR ZOOLOGI. BAND 14. N:0 21. 



certain characters in common with the paleotropical genera 

 Cylapofulvius Popp. and Rhinocylapidius Popp., but can 

 hardly be said to be allied to either of them and occupies 

 a rather isolated position in the subfamily. 



Xenocylapus nervosus n. sp. — Opaque, glabrous. Head 

 testaceous, cl3^peus, genae and a postociilar lateral spöt 

 fuscous, interocular space scarcely broader than an eye, an- 

 tennae fuscous, first joint paler in hue, its basal fourth 

 wbitish, second joint about three times longer than first, 

 the piceous rostrum with the first joint barely reaching 

 anterior margin of eyes, base of second joint paler. Pro- 

 thorax fuscous-black, the collar, lateral ledge, pronotal basal 

 börder, acetabular margin and three anteriorly subconfluent 

 vittae on the pronotal calli påle testaceous, the median vitta 

 percurrent, the lateral ones posteriorly abbreviated, pro- 

 sternal part of the collar a little broader than the pronotal 

 part, the posterior lateral part of the pronotal calli finely 

 transversely rugulose, pronotal basal börder with a transverse 

 row of extremely fine darker points. The testaceous meso- 

 scutum with a blek spöt on each side outside the whitish 

 sublateral keel. Scutellum testaceous, the paler median keel 

 bordered with black on each side. Meso- and metapleura 

 blackish with påle posterior margins. Corium including veins 

 and apical margin whitish, an oblong antemedian spöt to 

 exo-, meso- and endocorium, an oblong postmedian area of 

 exocorium and its cuneal area, posterior half of mesocorium, 

 an oblong subapical spöt of endocorium, and a broad claval 

 vitta brown, the dark postmedian areas of exo- and meso- 

 corium enclosing irregular whitish markings, membrane fuscous, 

 the veins, an oblong spöt in the interiör cell, a loop emitted 

 from this cell, and a fascia beween the loop and the exteriör 

 margin whitish. Abdomen fuscous-black, the lateral margins 

 and some transverse spöts near middle of venter testaceous. 

 Legs brown, two or three annulations to femora and tibiae 

 whitish. Length, $ 6 mm., incl. tegm. 6 mm. 



Amazonas (Fonteboa). — Mus. Stockholm. 



