Speeies of the American Genus Astylus. 349 



Head rather small; antennae short in both sexes. Protlioiax 

 transverse, rounded at the sides. Elytra moderately long, 

 without costa3 ; the apices, ^ ? , rather narrow, rounded, 

 feebly denticulate. 



(J . Ventral segment 5 deeply arcuato-emarginate, 6 sub- 

 conical, moderately long. 



Length 51-6, breadth 21-21 mm. ( (^ ? .) 



Uab. Ecuador (Rosenberg). 



One pair. Smaller than A. bourgeoisi, Kirsch ( = bisH<x- 

 guttatus, Gorli.), the head narrower, the antenntB much 

 shorter, the elytml markings very different, the six orange- 

 yellow spots (one of which is rot visible from above) 

 precisely similar in the two specimens seen. The male, 

 not dissected, doubtless has a bilobed tegmen. 



15. Asiyhus sexgultatus. 



Astylus sexguttatus, Kirsch, Abhandh Zool. Mus. Dresden, 1888-89, 

 no. 4, p. 11, t. 1. lig. 20. 



$ . Ventral segment 5 broadly, semicirculaily emarginafe, 

 6 grooved down the middle. Tegmen witli long^ narrowly 

 separated, rather broad lobes, which are ciliate at the tip. 

 Penis-sheath attenuate^ the apical portion beyond the aperture 

 narrow. 



Hah. (yOLOMBIA, Popayan and Jambalo [sec. Kirsch). 



There is a (J of this species in the Museum received in 

 1855, labelled with the MS. name A. bii/iacidalus, Clif., and 

 as from Guatemala, the locality being certainly inconect. 

 A brilliantj nigro-cseruleous insect, with six sharply defined 

 flavous spots on each elytron, arranged 1, 2, 2, 1. A. mi- 

 chaelisi, Pic (1908), from Theresopolis, Brazil, seems to be 

 Uiore nearly allied lo A. sexguttatus than to A. sexmaciilatus, 

 Perty, with which it is compared by its describer. 



16. Astylus luteoguttatus, sp. n. 



Moderately elongate, narrow and subparallel-sided ( (J), or 

 broader ( ? ), shining, jiilose, the hairs on the under surface 

 and legs cinereous; greenish-teneous, ihe elytra and ventral 

 surface often nigro-ca3ruleous, the latter with a spot at the 

 base, two others along the sides (the anterior one sometimes 

 obsolete), another, transverse, before the apex, and sometimes 

 two additional spots along the disc near the suture orange- 

 yellow or rufous, the basal joints of the antemise rufo- 

 maculate ; sparsely, finely, the elytra moderately coarsely 

 punctate. Head rather narrow, well developed behind the 



