112 Ohio Naturalist. [Vol. 1, No. 7 



DESCRIPTION OF NEW SPECIES OF STRATIOMYID^ WITH 



NOTES ON OTHERS. 



Jas. S. Hine. 



In a collection of several species of Stratiomyidae from Ohio, 

 and a number of western species, I find something which may be of 

 interest to students of the family. 



Specimens of Allognosta fuscitarsis. Say, show some degree of 

 variation in the extent of the pale color on the disc of the abdomen. 

 Some of the females liave tlie abdomen nearly or wlioUy black. 

 Specimens of A. obscuriventris, Loew, have the body entirely black; 

 the legs are darker and the form is considerably smaller than fusci- 

 tarsis. Both species are common at Columbus during May. 



Ptbcticus (Sabgus) trivittatus, Say. 



A species of Plecticus taken abundantly at Cincinnati by Chas- 

 Dury agrees so well with Say's Sargus trivittatus that I cannot con- 

 vince myself that it is anything else. Specimens when first taken 

 agree more closely with Say's description than the same specimens 

 do after they have been in the cabinet awhile and have become dry. 

 The green color that Say mentions is present in some while others 

 are yellowish or brownish. The broad, dusky band that Say de- 

 scribed as appearing on the basal part of each abdominal segment 

 beyond the second is conspicuous, being of greatest extent on the 

 fifth and sixth. 



EUPARYPHUS MAJOR n. Sp. 



Female, length 9mm. Head yellow; vertex, a wide stripe from 

 vertex to mouth, widened at antennae and spreading out on the 

 cheeks in the region of the mouth, antennae and occiput, black ; eyes 

 hairy. Thorax shining; apical two-thirds of scutellum including 

 the spines, an irregular spot each side between the scutellum and 

 base of the wing, four longitudinal lines abbreviated behind, a tri- 

 angular spot befere the base of the wing, and two spots beneath it, 

 bright yellow. There is also a minute yellow spot on each side of 

 tlie thorax posterior to the lower corner of the eye, the yellow mark- 

 ings on the disc of 'the thorax extend for one-fifth of their length 

 behind the transverse sutui'e, while those on the sides extend from 

 tlie humerus to the transverse suture. The femora except at base 

 and apex are black, and the last three tarsal joints ai'e brown, re- 

 maining parts of the legs are yellow; wings hyaline, veins dull yel- 

 low, halteres bright yellow. Abdomen black; a spot under the scu- 

 tellum, a spot each side on the lateral part of the seconll segment. 



