CYDNIDAE OF THE WESTERN HEMISPHERE — FROESCHNER 489 



considered a tentative but practical step. Rather than have these 

 unidentified names carried indefinitely on lists of unidentified species, 

 the author believes it desirable to associate them as closely as possible 

 with some known form. They are thus still available if further study 

 shows their distinctness, but are not dangling uncertainties. The 

 female type of stali is almost identical with the male of laevigatus 

 except that the ocelli are slightly larger and separated from the eye 

 by a space not quite three times a transverse ocellar width, and has 

 one posterior tibia with four and one with five spines on posteroventral 

 margins. 



The large size and uninterrupted mesopleural evaporatorium of 

 buchanani permits its comparison with only two species — aetJiiops and 

 laevigatus. The original description and notes on the type of buchanani 

 show that it cannot be aethiops because the ocelli are too small and too 

 widely separated from the eyes. Comparison with laevigatus yields 

 nothing in the available information to contradict the placement of 

 buchanani under that species as defined by the author after a study of 

 the type. Therefore, buchanani is so synonymized here. 



Pangaeus {Pangaeus) moestiis (St&l) 



Plate figure 229 



Aeihus moestus St§,I, 1860, p. 13.— Walker, 1867, p. 153. 



Pangaeus moestus Sthl, 1876, p. 19. — Lethierry and Severin, 1893, p. 70. 



Pangoeus [!] maestus [!] Signoret, 1882, p. 257, pi. 9, fig. 114. 



Diagnosis. — Among those species of the subgenus with one sub- 

 marginal setigerous puncture anterior to each eye and the posterior 

 tibia of the male unmodified, this species can be delimited by the 

 presence of two setigerous punctures on the costa and the corium 

 being polished. 



Description. — Based on one male. Male: Oval, widest behind 

 midlength. 



Head: Length two-thirds width, 0.88:1.31; interocular width, 0.80; 

 anterior outline a full semicircle, clypeus as long as juga, strongly 

 narrowed apically; surface shining, impunctate, with obsolete, radiat- 

 ing rugae; jugum with single submarginal puncture near eye; ocelli 

 moderate, separated from eye by more than twice transverse ocellar 

 width; jugum ventrally and maxillary plate, except basal margin, 

 polished, impunctate. Antennal segments: I, 0.26; II, 0.26; III, 

 0.36; IV, 0.41; V, 0.52. Bucculae about half as high as labial II; 

 labium attaining base of middle coxae. Labial segments: I, 0.44; 

 II, 0.70; III, 0.56; IV, 0.34. 



Pronotum: Length more than half width, 1.56:2.85; anterior margin 

 shallowly emarginate; lateral margin almost straight on basal half, 

 with five setigerous punctures submarginally; transverse impression 



