Vol. xxiii] 



ENTOMOLOGICAL NEWS 



215 



A Fossil Raphidia (Neur., Planip.). 

 By T. D. A. COCKERELL, Boulder, Colorado. 



A well-preserved anterior wing of Raphidia was found by my 

 wife in the Miocene shales of Florissant, Colorado, at Station 

 23. It is about 12.75 mm - l n S an d 3-75 broad. On comparing 

 it with the type of R. e.rhumata Ckll., I find that it corresponds 

 very closely in appearance and structure, but in Rohwer's ta- 

 ble (Amer. Jonrn. Science, xxviii, 534) it runs to R. mortua 

 Roh., from which it differs by the larger size, darker venation, 

 the greater number (nine) of cross-veins in the costal area, 

 subcosta joining costa much less than length of stigma from 

 stigma, and some other details. It differs from R. e.rhumata 

 principally as follows : 



(a.) Only two cells on costa beyond stigma (three in ex- 

 h uma to.) 



(b.) Second cross-vein connecting radial sector with media 

 a considerable distance basad of forking of sector, as in K. 

 mortua (jointing base of fork in e.vhumata) . 



(c.) Fifth branch of radius forked at end, though fourth 

 is simple (both simple in exhumata}. 



Thus the new fossil seems intermediate between R. e.rhu- 

 mata and R. mortua; it may be known as R. exhumata var. a, 



