202 THE CANADIAN ENTOMOLOGIST. 



rugose ; sides smooth except behind, posterior surface margined by a 

 carina which is emarginate above, the enclosed area punctate only on the 

 sides. Segments of abdomen with smooth posterior margins, first segment 

 more coarsely punctate, apical segments with transverse median row of 

 black hairs, black hairs on sides and on venter ; second segment nearly as 

 long as broad; ventral segments with apical margins also impunctate; legs 

 with white hairs, tibial spurs two-thirds of metatarsus. Wings with second 

 discoidal more than twice as long as broad, third cubital much longer than 

 broad, receiving the second recurrent vein at the middle, second cubital 

 longer than the first. Male similar to 9 ; more slender and scutellar spots 

 often absent ; clypeus wholly white ; basal area of metanotum with two 

 submedian carinae, the whole metanotum more hairy than in female. In 

 the female the last dorsal segment is roundedly produced at tip, basal half 

 before the row of bristles coarsely punctate, beyond extremely finely 

 punctate. In the male the last dorsal segment is coarsely punctate, black- 

 haired, a median carina on apical half; the curved apical spine lying in a 

 groove of the tip and barely visible. 



Length Ç 20 mm., ^ 16 mm. 



From Palmerlee, Arizona (Biederman). 



In markings this is close to Epomidiopteron juli of South America, 

 but differs in markings from E. elegafitulum as well as in sculpture and 

 structure. 



Thynnid^ 



Glyptometopa eureka, n. sp. — Reddish yellow throughout ; smooth, 

 but with distinct, rather large, sparse punctures, and sparsely clothed with 

 long white hair. Antennae 12-jointed, no longer than width of head, first 

 segment longest, punctate in front ; practically no clypeus, the antennae 

 close down to the margin ; mandibles long, broadest near tip where they 

 are angulate on inner side and thence concave with a minute tooth to the 

 acute tip. Head flat above, nearly twice as wide as long, a curved punc- 

 tate groove on each temple, not fringed with hair ; many punctures 

 between eye?, a few on vertex behind. Pronotum three times as broad as 

 long, but little punctured ; the mesonotum shorter than pronotum, the 

 pleura strongly produced in a vertical ridge fringed with erect white hairs. 

 Metathorax about as long as the prothorax and mesothorax together, 

 broadest behind where the sides are rounded, sparsely coarsely punctate 

 all over, the posterior surface sloping. Abdomen as long as head and 



