May, '09] ENTOMOLOGICAL NEWS. 199 



Black ; mouth part, mandibles, tegulae, apex of femora and legs below 

 rufo-ferruginous. Wings yellowish hyaline ; venation ferruginous. Face, 

 clypeus, thorax (more especially the pectus) with fulvous hair and pubes- 

 cence. Dorsal abdominal segments along the apical margins of segments 

 1-4 with silvery pubescence. Base of first abdominal segment with long 

 gray hairs. Tibiae and tarsi with golden hair. Pygidium with black and 

 reddish bronze colored hair. Venter with a few long bristle-like reddish 

 hairs. 



Hab. Boulder, Colorado, August 26, 1906 (S. A. Rohwer). 

 Eyes in life lemon-yellow. A , Van Cortlandt Park, N. Y., 

 July 25, '03, bearing numbers 25902 and 724 Public Museum, 

 Milwaukee. 



This species is nearest to T. praedatpr Fox, but it differs as 

 follows : the anterior margin of the clypeus does not have two 

 lobes in the middle, the scutellum is not impressed, the meta- 

 notum is more strongly furrowed, the abdomen is broader at 

 the base, the pubescence of the pygidium is not nearly so 

 bright, the pubescence of the head and thorax is not bright 

 golden, and the wings are slightly yellowish. 



It is also related to T. calcaratus Fox, but the fourth and 

 fifth antennal joints are equal, the scutellum is not impressed, 

 furrow of the metanotum is stronger, there is no fovea on the 

 metanotum, the longer spur of the hind tibiae is not so long, 

 pubescence of the pygidium not golden, etc. 



The medial produced portion of the clypeus is not strong, 

 and at first this was mistaken for a variety of T. crassiis Fox, 

 but the metanotum is without a "pyriform fovea" at the apex, 

 and there are four silvery bands on the abdomen instead of 

 three. 



The New York specimen has the middle tooth of the cly- 

 peus more distinct, but otherwise seems to be the same. 



Tachytes birkmanni n. sp. 



9- Length 10 mm.; length of anterior wing 7 mm. Anterior margin 

 of the clypeus broadly, slightly produced in the middle ; the produced 

 portion is rounded, entire ; at the side of the produced portion are two 

 rather small teeth ; clypeus punctured with large, somewhat irregular 

 punctures. Front and vertex closely punctured ; furrow from anterior 

 ocellus to base of antennae ; ocellar area parted by a strong furrow ; occi- 

 put seen from behind depressed by the strong medial line. Distance be- 

 tween the eyes at the top greater than the length of antennal joints 2 + 3, 



