1 6 PSYCHE [February 



resembles a large letter H. Wings hyaline, veins margined with brown. Length, 

 19 mm. 



$ . Face and front reddish brown except the upper triangular portion of the 

 latter which is bright red. Eyes minutely pubescent, ocelligerous tubercle very 

 conspicuous. Pile of the thorax larger than in the female but the stripes less clearly 

 defined. Abdomen a uniform reddish brown and the markings on the third and 

 fourth segments less distinct; the brown margins of the veins are also less pro- 

 nounced. Length, 17 mm. 



The 9 collected by Mr. Albert P. Morse, at Wellesley, Mass., is in the New 

 England collection of the Boston Society of Natural History. The $ marked ''N. 

 Y.," (Osten Sacken), is in the Museum of Comparative Zoology, Cambridge. This 

 peculiar species, with unicolorous eyes, prominent ocelligerous tubercle, and non 

 excised antennae, connects more closely Therioplectes and Tabanus. Dedicated to 

 Mr. C. P. Whitney of Milford, N. H., an enthusiastic student of the Tabanidae. 



Anastoechus nitidulus Fabr. 



Anasloec/ii/s barbatiis Osten Sacken, Western Dipt. Hull. U. S. Geo). Sur. III. 

 252, 1897. 



The distribution of this species in North America is somewhat peculiar. Baron 

 Osten Sacken based his description chiefly on specimens from Wyoming, Colo- 

 rado and California and also records a specimen from Nantucket collected by Mr. 

 S. H. Scudder, the middle of September. Several years ago I received from the 

 late Andrew Bolter for determination a specimen also taken at Nantucket. Speci- 

 mens have also been collected by Mr. Samuel Henshaw. Recently in going over 

 a collection of Diptera from Mr. A. P. Morse, I was interested in seeing several 

 specimens from Provincetown, Mass., collected Sept. 8, 1890, and Sept. 5. 1891. 

 Aside from the Massachusetts records I know of no other captures east of Wyoming 

 and Colorado. It is apparently common throughout the Rocky Mts. and Pacific 

 States. I have specimens from Phoenix, Ariz., and Ellensbuig, Wash., while 

 Messrs. Viereck and Rehn collected it in numbers in the Sacramento Mts., New 

 Mexico. Mr. Coquillett (Trans. Amer. Ent. Soc. XXI 110) considers A. burbntiis 

 O. S. a synonym of A. nitidulus Fabr. of Europe. 



Opsebius pterodontinus Osten Sacken, Perl. Entoni. Zeit. XWIl. 299, 

 1883. 



Opsebius agelcnae Melander, Fntom. News, XIII, 180, 1902. 



In looking over the collection of insects at the Peabody Museum, Salem, Mass.. 

 I was somewhat surprised to see a specimen of this species bearing the following 

 label: "Massachusetts, Packard Coll." The specimen ha\'ing been exposed to 



