DASOYLLIDAE. 173 



tlic; claws are tootlied at base (except in Acneus), simple at tip. 

 tirueriu describes tbe claws of Dieraiiopselaphus as trideiitate 

 from viewing the claws obliquely. 



Acneus is further reuiarkaljle in having the antennas of Ihc 

 male flabellate, the fourth joint having a short branch, joints f)-])) 

 short with a very long slender branch, the last joint long and 

 slender resembling the branches of the preceding joints. 



The genera of this tribe are as follows : — 



Prosternum of mo(I(n-at(; width not depressed l^etween the coxse ; claws 



toothed at base; ; aiiteiiiKV sinii>h'. 



Tarsi slender, fourth joint sniaHer than the third and not prohmged 



beneath the fifth. Ectopria. 



Tarsi slightly dilated, joints 2-3-4 feebly emarginate, the fcmrtli 



slightly prolonged beneath the fifth. Dicranop.selaphus. 



Prosternum narrow depressed between the cox;e ; claws slightly broadei- 



.it base 9 or toothed '^ ; antennfe ^ flabellate. Acneus. 



The fir.st two genera have each one species in the Atlantic 

 region, the third, one in California. 



Tribe IV.— IIEB.ODI\I. 



Hoinotinies elongate, usually oval species, of varied color, 

 covered with a very deciduous pul)eseeuce ; the clypeal suture is 

 not visible; the last joint of the labinl ])ali)i is frequently inserted 

 at the side of the preceding joint, and not at the apex as in other 

 insects. The thorax is usually very small; the prosternum in 

 front of the coxas is very short, and not visible between them. 

 Tlie anterior coxaj are long, oblique, and conical, and lap over a 

 {jortion of the middle coxte ; the hind eoxnl plates are strongly 

 ililated internally. Tibiae sulcate externally, usually with small 

 spurs, in Scirtes with longer ones. Tarsi with the fourth joint 

 larger than the third, bilobed; claws simi)le. The antenna^ of 

 the male of Prionocyphon dincoideus have the joints 4-10 fur- 

 nished on each size with a cylindrical appendage longer than tiio 

 joint. The fifth ventral segment is roundcMJ at tip. 



Our genera are separated in the following nuuiner: — 



Third joint of the labial palpi arising from \\n\ sidt? of the second. 

 Posterior femora normal, tibial spurs moderate. 



First joint of antenna; expanded, posterior tarsi lint above a7id bicari- 

 nate. Prionocyphou. 



First joint of antennae not expanded. 



