52 
Psyche 
[March 
deum: spiracle 1.4 as long as wide; basal trans-carina almost straight 
medially; apical trans-carina represented sublaterally by strong, 
broadly cuneate cristae but interrupted on median 1/3 of propo- 
deum; median longitudinal carinae well defined throughout and 
enclosing a very narrow, parallel-sided area-basalis and a broader 
but also long and parallel-sided combined areola and median apical 
area; pleural carina obsolete; surface shining, apicad of basal trans- 
carina with more numerous very large puntures that are moderately 
sparse on area dentipara but which become denser and mingled 
with longitudinally biased to reticulate wrinkling on areola, median 
apical area, and latero-apical area. First gastric segment: petiole 
with a sharply triangular lateral expansion at base; postpetiole 0.6 
as wide at apex as long from spiracle to apex. Second gastric ter- 
gite: smooth and highly polished with scattered tiny punctures 
emitting short, sparse setae. Succeeding tergites: with denser tiny 
punctures and setae which in part equal or exceed the length of 
their interspaces. Ovipositor: sheathed portion 0.51 as long as fore 
wing; tip 0.15 as high at nodus as long from nodus to apex, dorsal 
valve with a very long and slightly concave taper between nodus 
and apex. 
TYPE: In collection of Henry K. Townes, 5950 Warren Rd., Ann 
Arbor, Michigan, 48105. 
RELATIONSHIPS: Texana resembles the Mexican and Guatema- 
lan B. hwnerosa (Cushman, 1931, p. 51-52, fig. 4 on p. 4) but dif- 
fers in that the occipital carina reaches the hypostomal carina below 
(becomes obsolete below in humerosa ), because the propodeum 
anteriad of the apical trans-carina is punctured on the area denti- 
para and longitudinally rugose medially (polished before the apical 
trans-carina in humerosa ), in the well-defined, elongately rectangu- 
lar areola (in humerosa the apical trans-carina is acutely angled 
forward medially and a single median longitudinal carina reaches 
forward from the vertex of the angulation to the basal trans-carina), 
and in having the apical margins of gastric tergites 2 and 3 narrowly 
black (no black on apical margins in humerosa ). 
From the other Mexican Bicriste/la, B. univittata (Cresson), tex- 
ana differs because the occipital and hypostomal carinae join in a 
weak declivity (instead of being separated by a broad, deep depres- 
sion), by its shorter temple (0.21 as long as eye at upper 1/3 vs. 0.38 
in univittata ), and by its longer epomia, medially longitudinally 
wrinkled (instead of mostly smooth and polished) mesopleuron. 
