FAMILY TACHINID.E — THE TACHINIDS 471 



a broad postsvitural fascia; first abdominal segment wholly, the others 

 on the apical half, shining. Length, 8 mm. Genotype: — T. fasciata, 

 n. sp. (Panama). 



Microtownsendia, new genus 



Female. — Front as wide as the face; two pairs of orbitals; ocellars 

 moderately strong; outer verticals strong; cheeks extremely narrow; 

 face receding, the ridges bare; oral margin not produced; proboscis 

 short; palpi clavate; antennge reaching the oral margin, the second seg- 

 ment short; arista bare. Acrosticals and dorsocentrals 2-3; posthumeral 

 and posterior sublateral present; two sternopleurals; prosternum haired. 

 Apical cell ending a little before the wing-tip; third vein with two basal 

 bristles. Abdomen oval, the fourth segment elongate; discals absent, 

 each segment with marginals. Black, with cinereous white pollen; 

 mesonotum thinly pollinose and Aveaklj' vittate; bases of abdominal 

 segments narrowly pollinose; palpi yellow. Length, 3.75 mm. Geno- 

 type: — M. nitens, n. sp. (Panama). 



