No. 466] GENUS DIADASIA. ; 743 
N 
w 
* 
in 
Apex of abdomen bidentate 
. Abdomen above with much black tay on dud r PPE hind ne 
second 5 ; ; i ‘ X 
Abdomen aisé Mibi black bor : 6. 
Large ; at least 13 mm. long ; apical teeth et doian nee ‘and 
divergent . bituberculata (Cresson), 
Smaller ; about 10 mm. bos: apical teeth of abdomen small and close 
together 
: m 
Hind tibie dide bat ER not ERBEN NE bud joint “ak hind 
tarsi dark ferruginous, long, slender, and curved, its apex not produced, 
the hair on its inner side orange ; maxillary palpi not fringed with hair, 
except a little tuft at the end of second joint; teguls light rufous 
sumichrasti (Cresson). 
Hind tibize greatly swollen, narrowing to a very slender base, shaped 
something like a wine-bottle ; basal joint of hind tarsi dark, not so long, 
with black or dark fuscous hair on inner side 
5. 
. Tegulz dark but decided red; second jubinargindi cali S eed 
above; hair of mesothorax white . afflicta (Cresson). 
Tegulz piceous : second ipm o cell icd narrowed above ; hair 
of mesothorax and scutellum gray . afflicta perafflicta Cockerell. 
6. Basal joint of hind tarsus ending in a long process; species covered 
with gray hair; iege er with no Tee of "UE hairs, but second 
joint ciliate . : 
Basal joint of hind tarsus not ending i in a ie process ; 8. 
7. Larger forms . : . australis (Cresson). 
Smaller, down to about Io mm. ind : darrai rinconis (Cockerell). 
8. Very large, about 16 mm. long . megamorpha Cockerell. 
Rather large, length over 10 mm., the ee more or less ochrace- 
ous on thorax, sometimes quite fulvous ; facial eh longer than 
broad . ^ : à i à : e. 
Small, ques Tus on io mm. . x : À ; 10. 
‚9. Hair of thorax more or less fulvous . ; i nido (Cresson). 
Hair of thorax paler . ; enavata var. densa (Cresson). 
10. Abdomen above shining m nass hairy, not banded ; face broad, 
orbits little converging below (distinctly less than in diminuta 
nitidifrons Cockerell. 
Abdomen hairy, the hind margins of the segments banded 
diminuta (Cresson). 
Abdomen covered with appressed white tomentum 
spheralcearum Cockerell. 
D. albovestita Provancher, I have not seen. It was described 
from the female; length just over 8 mm,, flagellum reddish 
beneath, tegulae brownish, margins of abdotinal segments pale 
yellow and covered with dense whitish pubescence ; apex red- 
i 
