FAMILY TACHINID.T: THE TACHINIDS 467 



Coloradalia, new genus 



Male. — Front wide, the frontals not strong; ocellars long, reclinatc; 

 checks one-third as wide as eye-height ; face strongly retreating, the 

 ridges bristled on almost their whole length; middle of face deeply 

 sunken, the oral margin not produced; antennae almost as long as the 

 face, the second segment short; pro])oscis short, palpi clavate; eyes 

 with short hair. Acrosticals and dorsocentrals 3-3, the acrosticals not 

 strong; posterior sublateral weak, the posthumeral hair-like; two sterno- 

 pleurals; presternum concealed. Apical cell ending a little before the 

 wing-tip ; third vein with two basal l)ristles, one of them long; first 

 vein bristled on its whole length. Abdomen elongate oval, very deep, 

 the genitalia large, but normally mostly concealed; discals and mar- 

 ginals on segments two to four. Black, cinereous poUinose; the meso- 

 notum and front with yellowish tinge; apices of segments less thickly 

 pollinose. • Length, 5 mm. (lenotype : — C. ocellaris, n. sp. (Colorado). 



Lasionalia, new genus 



Male. — Related to Townsendina, n. g., but the apical cell is closed, 

 the i)osterior sublateral present, etc. Eyes bare; front narrow, widen- 

 ing anteriorly; ocellars long; outer verticals not developed; cheeks 

 almost half as wide as the eye-height; parafacials with a complete row 

 of bristly hairs and a second partial row on the upper half; ridges bare; 

 face strongly retreating, the oral margin scarcely produced; proboscis 

 short, the palpi slightly clavate; antennae not reaching to the vibrissae, 

 the second segment somewhat shorter than the third; arista bare. 

 Acrosticals and dorsocentrals 2-3; posterior sublateral present, the 

 posthumeral absent; two sternopleurals; prosternum bare. Apical cell 

 ending a little before the wdng-tip, very short petiolate; third vein with 

 one 07' two basal bristles. Abdomen elongate-oval, each segment with 

 discals and marginals. Black, yellowish cinereous pollinose; palpi yel- 

 low; tibia' rather reddish. Length, 5.5 mm. Genotype: — L. cinerea, 

 n. sp. (Minnesota). 



Oxynopsalia, new genus 



Female. — Front of moderate width; two pairs of orbitals; ocellars 

 long; outer verticals well developed; cheeks narrow; face strongly reced- 

 ing, the oral margin not produced; ridges bristled on more than the 

 lower half; proboscis short; palpi clavate; antenna; reaching to the oral 

 margin, the second segment somewhat elongate; arista bare. Eyes short 



