FOSSIL FAUNA AND FLORA OF THE FLORISSANT SHALES 1 65 



RhyndiitidcB . 

 Subfam. Rhynchitince. 4 species, belonging to 3 genera, of which one 



is extinct. 

 Subfam. Isotheince. 11 species, referred to 6 genera, all extinct, the sub- 

 family itself being extinct. One of the genera also occurs in the strata 

 at Roan Mts., Colo., and another genus has been found at Green River, 

 Wyo., the species in each case being distinct from those of Florissant. 

 OtiorhynchidcB. 14 species, referred to 10 genera, of which six are extinct, 

 but one of these is merely a blanket genus to cover miscellaneous members 

 of this group, the affinities of which are uncertain. 

 CurculionidcB. 75 species, belonging to 36 genera, of which 9 are said to be 

 extinct. One of the extinct genera, Geralophus Scudd., has 9 species, and 

 is the most abundant type of Rhynchophora at Florissant. 

 Calandridce. 6 species, representing 5 genera, of which 3 are extinct. 

 Scolytidce. i species, of the modern genus Hylesinus. 

 AnthribidcR. 5 species, of as many genera, of which two are extinct. 

 Hymenoptera {^2i species described,' of over 230 found) 

 Apoidea (bees). 14 species, of 9 genera, of which two are extinct, while one is rep- 

 resented by an extinct subgenus ( ? genus) placed under Parandrena. The 

 modern genera are Halictus (2 species), Andrena (2), Dianthidium (i), 

 Anthidium (2), Ceratina (i) and Heriades (3). The details will shortly 

 be published elsewhere. 

 Fossores, etc. "About 30 species." I have described 12 wasps, belonging to 10 

 genera, of which 5 are extinct. The recent genera are Passaloecus, Hemipog- 

 onius, Tracheliodes, Hoplisus and Ammophila. There are two extinct 

 genera of TiphiidcB. I have also described an extinct genus of Vespidce, 

 with 3 species, and two species of Eumenidcs, referred to the modern genus 

 Odynerus. 

 Formicoidea (ants). "Perhaps fifty species." They will be studied by Dr. W. 

 M. Wheeler. One species {Ponera hendersoni Ckll.) has recently been 

 described. 

 Ichneumonidcs "perhaps 80" species. 



StephanidoR. I have described one, belonging to a new genus. 

 Braconida, Chalcididce, Cynipida, Chrysididce. "Probably 50 species" between 



them. 

 Tenthredinoidea. " 14 or 15 species. One, Atocus defessus Scudd., has been pub- 

 lished; it represents an extinct genus belonging to the LydidcB. 

 Siricida. One. 



Lepidoptera (9 published, of perhaps 16 found) 

 Rhopalocera (butterflies) 



■ Of these, 31 await publication. The large one referred to by Scudder as apparently a Bombus is not 

 suflBciently well presented for identification, but it is not a bee, and probably belongs to the Coleoptera. 



