168 
Psyche 
[September 
Length 4. 3-4.9 mm., width 0.8-0. 9 mm. Habitat, Bolivia. 
Head transverse; front feebly convex, shining, densely, 
finely, shallowly punctulate, the punctures becoming micro- 
scopically ocellated and more densely placed posteriorly and 
laterally. Pronotum seven-eighths as wide as long, widest at 
the prominent anterior angles, five-sixths as wide at base, surface 
transversely convex, finely punctate, median line impunctate. 
Scutellum large, twice as wide as long, one-fifth as wide as elytra, 
surface shining with transverse postmedian elevated line and 
posterior marginal stria. Elytra as wide as pronotum at anterior 
angles, three times as long as wide, shining, punctate-striate, 
intervals impunctate, apices separately rounded. Male with 
last sternite longitudinally broadly concave and strongly tumid 
at sides near apex, hind femora armed with tooth at middle of 
upper carina of inner edge: female with depressed and elevated 
areas of last sternite more feeble. 
Type, allotype, and one paratype No. 26488, U. S. N. M. 
Described from a male and two females collected with scale 
insects in hollow swellings at fork of twigs of Cordia alliodora 
Ruiz and Pavon (probably var. boliviano, Chodat and Vischer) 
near Huachi, on the Rio Beni, approximately latitude 15°40' 
south longitude 67°20' west. 
II. A NEW MICRODON FROM PANAMA. 
By Wm. M. Mann, 
National Zoological Park, Washington, D. C. 
Dr. Wheeler has recently given me two pairs of an interesting 
Microdon from Panama. The species is apparently new and a 
description follows. 
Microdon wheeled, new species. 
Female. Length 8 mm. 
Form rather long and slender. Color testaceous, with the 
ocellar tubercle, pronotum, sides of vertex, metanotum and tip 
