NO. 1938. THE DIPTEROUS FAMILY PHORIDJE—MALLOCH. 425 



apex, spinipes has four spines on almost the dorsal surface, the 

 upper being at near the basal third, and three on the antero-dorsal 

 surface, one below the basal third, one below the middle, and one 

 at near the apex. There are also two serial spines on the fore tibia 

 in spinipes instead of only one as in caliginosa. 



Type. — Hartford, Connecticut. Four specimens from Moscow, 

 Idaho, and one specimen from Columbus, Ohio. 



Genus PARASPINIPHORA, new name. 



The name, Spiniphora, I used ^ for this genus being preoccupied I 

 propose the above alteration as substitute. 



TABLE OF SPECIES. 



1. Thorax red or yellow 10. 



Thorax black 2 . 



2. Halteres black, hind tibia with three spines, one at basal third and one at apical 



third on antero-dorsal surface, and one at middle on antero-ventral surface, as 



well as 7-8 email setulae on postero-dorsal surface strobli, p. 425. 



Halteres yellow 3. 



3. Wings with a dark spot at base of fourth vein, mid tibia with two ventral 



spines maculata, p. 426. 



Wings unspotted 4. 



4. Scutellum with pale hind margin, a series of four spines on postero-dorsal surface, 



and one at basal third and one at near apex on antero-dorsal surface on hind 



tibia scutellata, p. 426. 



Scutellum unicolorous 5. 



5. Mid tibia with two or three strong spines in addition to the usual three, hind 



tibia with antero-ventral spines spinosissima, p. 426. 



Mid tibia with only the usual three spines 6. 



6. Hind tibia with an antero-ventral spine at middle 7. 



Hind tibia without antero-ventral spine 9. 



7. Thorax black or reddish, never yellow, with two pairs of dorso-central 



bristles bergenstammi, p. 426. 



Thorax with only one pair of dorso-central bristles 8. 



8. Hind tibia with only three spines trispinosa, p. 427. 



Hind tibia with eight spines spinulosa, p. 429. 



9. Hind tibia with two spines and three end spurs bohemanni, p. 427. 



Hind tibia with four spines and two end spurs excisa, p. 427. 



10. Hind tibia with about 16 transverse rows of short bristles on dorsal surface. 



multiseriata, p. 428. 

 Hind tibia without such short bristles 11 . 



11. Hind tibia without ventral spine erythronota, p. 428. 



Hind tibia with ventral spine 12. 



12. Hind tibia of male with three spines, of female with seven or eight, .dorsalis, p. 429. 

 Hind tibia in both sexes with 5 spines slossonse, p. 428. 



PARASPINIPHORA STROBLI Becker. 



A species as yet unrecorded from America; the characters given 

 in table ought to distinguish it. It is the only species in the genus 

 with dark halteres. 



> Jour. Nat. Hist. Soe. Glasgow, 1909, vol. 1, 1909, p. 27. 



