April 1S93.] 



PSTCHE. 



429 



PLATE 12. 



Fig. 1. — Liobiuium vittatum. Female. Nat- 

 ural size. 

 2. — Parts of same. Magnified. 

 2a. — Body. 



2d. — Eye eminence. Side view. 

 2c. — Eye eminence. Front view. 

 2d. — Palpus. Side view. 

 2e. — Claw of palpus. Side view. 



PLATE 14. 



Fig- i- — Liobunum ventricosum hyemale. 

 Immature. Natural size. 

 2.— Parts of same. Magnified. 

 2a. — Body. 



lb. — Eye eminence. Side view. 

 2c. — Eye eminence. Front view. 

 2d.— Palpus. Side view. 

 2e. — Claw of palpus. Side view. 



plate 13. 



Fig. 1. — Liobunum ventricosum (Wood), 

 male. Natural size. 

 2. — Parts of same. Magnified. 

 2a. — Body. 



2b. — Eye eminence. Side view. 

 2c. — Eye eminence. Front view. 

 2d. — Palpus. Side view. 

 2e. — Claw of palpus. Side view. 

 2f. — Maxillary lobe of second pair of legs. 



plate 15. 



Fig. 1. — Liobunum politum magnum. Fe- 

 male. Natural size. 

 2. — Liobunum politum. Parts of male. 



Magnified. 

 2a. — Body. 



2b. — Eye eminence. Side view. 

 2c. — Eye eminence. Front view. 

 2d. — Palpus. Side view. 

 2e. — Claw of palpus. Side view. 



DESCRIPTION OF A NEW AND INTERESTING PHASIID-LIKE 

 GENUS OF TACHINIDAE S. STR. 



BV C. H. TYLER TOWNSEND, LAS CRUCES, N. MEX. 



During the last year, I have received, 

 among several lots of flies from New 

 Hampshire, a number of specimens of 

 a tachinid s. str., which I at first mis- 

 took for a phasiid of the genus Hya- 

 lomyia. Upon examination, recently, 

 the distinctness of the form was at once 

 realized, but the great resemblance in 

 almost every detail save one was very 

 surprising. This one detail will, how- 

 ever, always be sufficient to distinguish 

 it, and that is the presence of macro- 

 chaetae on the abdomen, a character 

 possessed by no phasiid. 



From its extreme resemblance to 



Hyalomyia, I propose to call the new 

 genus Hyalomyodes. The species may 

 be known as H. iv'cedii, in honor of 

 Dr. Weed, in whose sendings my atten- 

 tion was first called to this interesting 

 form. 



Hyalomyodes nov. gen. 

 Head much like Hyalomyia; front verv 

 narrow, slightly widened at vertex, much 

 more widened toward insertion of antennae 

 at narrowest about one ninth width of head 

 in both sexes. Face widening from front at 

 same angle as latter, so that the two opposite 

 boundaries of the face and front diverge uni- 

 fonnlv from each other from the narrowest 

 part of the front to a point very near the oral 



