88 
Psyche 
[March-June 
and again toward base of petiole but otherwise faint or absent; dor- 
sal carinae absent or at most faintly suggested above spiracle. Cas- 
ter: moderately elongate fusiform; 2nd tergite dully shining to mat 
with fine, granularly reticulate wrinkling and abundant, medium 
sized to large, mostly obscure, densely intercalated punctures which 
emit numerous short setae that in great part approach or equal the 
length of their interspaces; the following tergites with somewhat 
longer and denser setae that mostly equal or exceed the length of 
their interspaces. Ovipositor: sheathed portion 0.2 as long as fore- 
wing; straight, moderately stout, strongly compressed; nodus high, 
with a small but sharp notch ; dorsal valve in profile with a straight 
to slightly concave taper between notch and apex; ventral valve on 
tip with fine, inclivously oblique ridges; tip 0.26-0.3 1 as high at 
notch as long from notch to apex. 
Male*, unknown. 
Types: The holotypes and two paratypes are deposited in the 
collection of the Institute Miguel Lillo, San Miguel de Tucuman, 
Republica Argentina. One paratype has been donated to the Florida 
State Arthropod Collection (Gainesville, Florida, USA) and a 
fourth paratype is in the collection of Charles C. Porter (RFD 3, 
Cambridge, Maryland, USA). 
Discussion: Among South American species of its genus, Attach 
tucumana comes closest to the Araucanian A. f estiva, as shown by 
several common characters emphasized in the key. Nonetheless, that 
relationship is comparatively remote and tucumana has some features 
which set it apart from the other South American Anacis ; for ex- 
ample, its shorter notauli, shorter second radial abscissa, less elongate 
propodeum, weaker dorso-lateral and dorsal carinae of the first gas- 
tric tergite, and slightly shorter ovipositor. Indeed, the northwest 
Argentine and Araucanian populations of Anacis probably have been 
out of contact since the late Tertiary and early Pleistocene Andean 
uplift, although it may be surmised that this is an old genus which 
ranged throughout the climatically and biotically more uniform 
South America of Pre-Andean times. 
Worth noting also is the difference in abundance between the 
southern and northern Anacis. At least two of the southern species 
(A. f estiva and A. ruhripes ) are very common insects likely to be 
encountered in numbers almost any day during the growing season; 
whereas, A. tucumana only has been collected on five occasions. This 
circumstance coincides with the probable relict status of Anacis. 
Populations isolated in the Araucanian zone, where almost none of 
