1909] ROHWER — FOSSIL CEROPALIDE OF FLORISSANT, COL. 25 
Length of second cubital cell on cubitus —. : : : . 1122. 
Length of third cubital cell on radius ; : ; : : ; 2 S06 
Length of third cubital cell on cubitus : ; ; : : ; Se: 
Distance from second recur. n. to third tr. cu. . : ; : . oe avo: 
Length of the second tr. cu. ; ; ‘ : s . = § 306 
Distance of the first recur. n. from first Wecely: ee : ; : : s itaill 
Habitat: — The tertiary shales of Florissant, Colorado; at station 11 (the north 
end of Fossil Stump Hill). Named after Mrs. W. P. Cockerell who collected the 
specimen in 1907. ‘Type in the University of Colorado. 
This species is at once distinguished from the other fossil species of Florissant 
(Salius florissantensis (Ckll.), S. seuddert (CkIl.) and Agenia saxigena Ckll.) by 
the larger second cubital cell, the different color of the wings and body and the larger 
size (Salius florissantensis Ckll. is 15 mm. long). ‘The short wings should help in 
determining this species. A search through the literature and among the species in 
my collection fails to bring to light any species closely related to this one, that is 
at present known to inhabit the Rocky Mountain Region. It does however show 
that species similarly colored, and similar in some other respect are to-day found in 
the Atlantic states and in Mexico. Such allies are Agenia congrua (Cress.), Agenia 
longula (Cress.) and Agenia accepta (Cress.). The venation resembles that of 
Pseudogenia montivaga Cam. from Mexico as figured in the Biol. Centr. Am. Hy- 
menoptera, Vol. ii, plate 10, fig. 9. 
SALIUS SENEX Nn. sp. 
2. Length about 14 mm.; length of the anterior wing 9.6mm. Form robust. 
Head of the usual subtransverse type. Sculpture subtle; postscutellum not strongly 
if at all obliquely striated; metathorax transversely wrinkled. Legs rather robust; 
more or less spinose. Abdomen stout, a little longer than the head and thorax 
united. Stigma distinct; radial cell reaching the costa; second cubital cell very 
small, almost quadrate; second recur. n. received by the second cubital basad of 
‘the middle; third cubital cell large, wider below, receiving the second recurrent a 
little beyond the basal third; first discoidal long, longer than the first cubital; 
transverse median beyond basal as far as the length of the basal below the cubitus. 
Color ferruginous, apparently without black markings. Wings hyaline, with a cloud 
below the stigma, but not in the radial cell; venation brownish. ‘The following 
measurements are in #4: — 
Length of the stigma : ; 5 : : : ; ; : + S00: 
Breadth of the stigma : ; : : : : : : : a LS Ae 
