EPOMIDIOPTEEON.— TIPHIA. 239 



E. sumichrasti with the tarsi and fore tibiae reddish ; but in other respects it does not 

 agree with the male here described. 



8. Epomidiopteron saussurei. 



Nigrum, nitidum ; alis fulvo-hyalinis, nervis testaceis, costa nigra. $ . 

 Long. 5-6 miliim. 



Hab. Mexico, Tierra Colorada in Guerrero 2000 feet (H. H. Smith). 



Head shining, sparsely haired, covered with large, widely separated punctures. The 

 scape of the antennae shining, almost glabrous ; the flagellum with a fuscous pile. The 

 top of the pronotum at the base transversely carinate ; the base with large, widely 

 separated punctures ; the apex impunctate. The mesonotum and scutellum with large 

 scattered punctures. Median segment finely rugose ; the apex crenulated ; the trian- 

 gular area with some irregular striae at the base ; the central keel does not reach the 

 apex. The pro- and metapleurae deeply excavated ; the former finely, closely striolated 

 at the bottom, the latter more strongly striolated at the apex. Abdomen very shining, 

 bearing very shallow, fine, widely separated punctures ; the sides, the fifth segment, 

 and the ventral segments fringed with white hairs ; the pygidium at the base coarsely, 

 at the apex finely, punctured and reddish, the basal part with long fulvous hair. The 

 tibiae and tarsi thickly fringed with silvery hair ; the tarsal spines and the apical joints 

 of the tarsi reddish ; the calcaria white. The third cubital cellule at the top and 

 bottom shorter than the first and second cellules united ; the second recurrent nervure 

 received shortly before the apical third of the cellule. 



This little species differs from the others here described in having the third cubital 

 cellule at the top and bottom shorter than the first and second cellules united. 



TIPHIA. 



Tiphia, Fabricius, Ent. Syst. ii. p. 223 (1793) (part.). 



Comparatively few species of this genus have been recorded from the Nearctic or 

 Neotropical regions. The species are closely allied, and show no great difference in 

 structure and hardly any in coloration, being all black, with the tibiae and tarsi and the 

 apical abdominal segments clothed with white or fulvous hair. Two of our species 

 approximate to Paratiphia in having the basal segment of the abdomen carinate ; and 

 another has the first transverse cubital nervure present, but it is not quite so long as 

 in the typical Paratiphia. None of these species, however, have the area on the 

 median segment triangular. 



