CYDNIDAE OF THE WESTERN HEMISPHERE — FROESCHNER 501 



Discussion. — Dr. China's (MS) notes on the type enabled the 

 author to associate the name rubrifemur with the present species. 



This species and the other three that run into couplets 7 and 8 of the 

 key to species appear to be closely related but are represented by 

 very few specimens. Since two of these are known only from females 

 and two from males, perhaps more information will show them to be 

 the opposite sexes of only two species. This should not be especially 

 surprising in view of the amount of sexual dimorphism that occurs 

 within the subgenus. 



Pangaeus (JPangaeus) rugonotutn, new species 



Plate figure 73 



Diagnosis. — The numerous longitudinal rugae on the posterior 

 third of the calli (fig. 73) identify tliis form within the genus. 



Description. — Based on two females. Female: Oval, widest 

 behind midlength. 



Head: Length more than two-thirds width, 1.05:1.45; interocular 

 width, 0.95; anterior outline semicircular, clypeus as long as juga, 

 strongly narrowed apically; surface shining, impunctate; juga de- 

 pressed medially, with four submarginal punctures, two close-set in 

 front of eye and two more widely set distally; ocelli moderate, sepa- 

 rated from eye by space about three times transverse ocellar width; 

 jugum ventrally and maxillary plate, except posterior margin, polished, 

 impunctate. Antennal segments: I, 0.31(0.30-0.32); II, 0.24(0.23- 

 0.26); III, 0.41(0.40-0.42); IV, 0.47(0.46-0.49); V, 0.54(0.52-0.56). 

 Bucculae about half as high as labial II; labium reaching between or 

 just beyond middle coxae. Labial segments: I, 0.53(0.50-0.56); II, 

 0.76(0.76-0.77); III, 0.47(0.46-0.48); IV, 0.43(0.43-0.44). 



Pronotum: Length more than half width, 1.46(1.43-1.49) :3.07 (2.95- 

 3.20); anterior margin deeply, doubly emarginate; lateral margin 

 entire, curved from near base; transverse impression submedian, 

 depressed across full width, marked by row of small, close-set punc- 

 tures; anterior lobe distinctly punctate laterally, discally obsoletely 

 rugulose, posterior third of calli with numerous close-set, longitudinal 

 rugae extending into transverse impression; posterior lobe with few 

 widely separated small punctures, especially medially. 



Scutellum: Length little less than width, 1.75(1.69-1.82) : 1.96(1.89- 

 2.03); disc polished, with few, widely scattered punctures. 



Hemelytron: Clavus and corium shining; clavus impunctate or with 

 incomplete row of obsolete punctures; mesocorium with few punctures 

 in impressed line paralleling claval suture and sometimes basal half 

 of second such lines, elsewhere feebly or not punctured; exocorium 

 impunctate; costa slightly reflexed, with one setigerous puncture; 

 membranal suture straight, lateral margin very feebly or not pro- 



