CHARLES W. HOOKER. 125 



Tliyreodoii snowi Vier.* 

 Thyreodon snowi Viereck, Trans. Kans. Acad. Sci., XIX, p. 313, 9 ..1905. 



Black ; antennce orange with scape brown ; head. legs and -margin of 

 the niesonotutn and niesopleurce 7nore or less brownish ; wings fuscous, 

 with a broad bare yellow area in the middle of the anterior half of the 

 posterior pair. 



Length, 25 mm. 



Black ; eyes and cheeks brownish ; antennae orange with the scape 

 and pedicel brown ; head somewhat broader than in tnorio ; the face 

 more even, closely and densely punctured, giving a rugulose appear- 

 ance, except along the eye margins where the punctures are distinct ; 

 antennae with 61 joints ; the scape and pedicel together a little longer 

 than the first joint of the flagellum ; clypeus sparsely and deeply punc- 

 tured ; cheeks shining, distinctly and closely punctured. 



Thorax with anterior border of the mesonotum and border of the 

 mesopleurae more or less brownish ; mesonotum shining, distinctly and 

 closely punctured, especially on the anterior margin, where the punc- 

 tures are so close as to give a rugulose appearance ; parapsidal fur- 

 rows distinct, rugose, forming a V and not reaching the posterior border; 

 scutellum closely punctured, with an acute carina ; mesopleurae closely 

 punctured and nearly rugulose below, smooth and polished above ; 

 metathorax rugulose, the sides closely punctured behind, with a median 

 transversely striate groove ; wings fuscous, not as dark as in morio, 

 with a broad bare yellow area in the middle of the anterior half of the 

 posterior wings ; neuration nearly as in tnorio, with the nervellus broken 

 well above the middle. 



Four anterior legs with their terminal trochanters, femora, tibiae, 

 and tarsi almost entirely, and the posterior tibiae and tarsi brownish 

 testaceous ; middle and posterior legs with the apical joint brown. 



Abdomen with petiole smooth and shining, sparsely and minutely 

 punctured ; the segments as in tnorio, clothed with inconspicuous 

 pubescence, blackish or brownish on the dark portions, golden yellow 

 on the pale portions. 



I have not seen the type or a specimen of this species, and 

 can only give the original description slightly rearranged. 



Type. — 9 . University of Kansas. 



This species is closely related to T. morio and its sub- 

 species transitionalis , and may perhaps prove to be only a 

 subspecies, but as I have not seen the type or a specimen I 

 give it specific rank. 



Distribution. — Wallace county, Kansas, 3,000 feet, June. 



* Named in honor of the late Prof. F. H. Snow. 



TRANS. AM. ENT. SOC, XXXVIII. 



