48 
Psyche 
[Vol. 94 
Discussion. The 4 large and polished pronotal convexities are 
distinctive. Also, the rough projections behind the eyes have not 
been seen in any other Praestochrysis. 
Praetochrysis spinula Bohart, new species. 
Holotype male. Length 7 mm. Body stout, blue green with exten- 
sive dark purple on vertex, notum, and terga, F-I green in front, 
wings light brown. Punctures medium coarse and fairly close on 
vertex and notum, coarse and separated by about a puncture diame- 
ter on terga. Head 1.5X as broad as long (fig. la); F-I 2. IX as long 
as broad (fig. Id), F-V 1.4X as broad as long; scapal basin rather 
finely punctate, punctures arranged in a somewhat crossridged pat- 
tern; TFC prominent, nearly straight, downturned laterally (fig. la), 
backward branches weak, midocellus not lidded; malar space 2.5 
MOD; subantennal space 0.8 MOD; pronotum as long as scutellum, 
no median groove; metanotum with a subtriangular, distally 
rounded, dorsally flattened mucro (fig. lc); mesopleuron with a 
well-formed scrobal sulcus, areolate below, episternal sulcus dis- 
cernible but weak; propodeal projection stout, sharply pointed, 
evenly convex behind; T-II without a midcarina; T-III rather evenly 
and strongly convex, pit row obsolete, lateral margin of III a little 
convex, 5 sharp and slender teeth, outer pair shortest (fig. lb); S-II 
spots rounded, touching (fig. le). 
Female. Unknown. 
Holotype male, Sri Lanka (DAVIS). 
Discussion. The long T-III teeth, obsolete pit row, medially 
straight TFC, and flattened mucro distinguish this species. The 
Taiwanese basilacuna Sugihara has similar T-III teeth but the pit 
row is better developed, TFC is medially incised, and the metanotal 
mucro is longitudinally furrowed. Also, it is a larger species, 9-13.5 
mm long. 
Notes on Oriental Praestochrysis 
While studying Oriental Praestochrysis, I have noted several 
characters of key value. The presence or absence of a metanotal 
projection is a prime distinguishing feature. A large such projection 
is often present in Praestochrysis (figs. 1, 3, 4, 5) as in basilacuna 
