CYDNIDAE OF THE WESTERN HEMISPHERE — FROESCHNER 385 



3. Head broadly rounded, semicircular or slightly truncated apically (fig. 52) ; 

 pronotal disc immediately behind anterior emargination with a single row 

 of a few (usually two to seven) coarse punctures between setigerous punc- 

 tures posterior to inner angle of eyes indentatus Uhler (p. 387) 



Head less broadly rounded (fig. 53) ; pronotum immediately behind anterior 

 emargination with many (about 15) coarse punctures between setigerous 

 punctures barberi, new species (p. 395) 



Rhytidoporus (_Rhytidoporus) barberi, new species 



Plate figures 53, 194 



Diagnosis. — This new species, here described from a single male, 

 may be characterized by the presence of ocelli and the numerous 

 (about 15) punctures immediately behind the anterior emargination 

 of the pronotum. The short, mesally projecting dorsal spine of the 

 gonostylus also separates this from the males of other known species. 



Description.— Male: Only specimen known. Oval. 



Head: Wider than long, 1.13 : 0.70; interocular width, 0.66; margins 

 of paracl3T)ei less broadly rounded (fig. 53). Antennal segments: I, 

 0.16; II, 0.23; III, 0.26; IV, 0.36; V, 0.43. Surface shining, with few 

 weak, radiating rugae, three or four moderate punctures anterior to 

 and between ocelli. Labial segments: I, 0.46; II, 0.56; III, 0.46; 

 IV, 0.40. 



Pronotum: Nearly twice as wdde as long, 2.34 : 1.23; anterior lobe 

 with moderate, subapical impression bearing about 15 distinct punc- 

 tures, and with several punctures laterally; transverse impression 

 obsolete, marked by an irregular row of close-set, moderate punctures; 

 posterior lobe with a few scattered punctures discally; side margins 

 with six setigerous punctures. 



Scutellum: Length and width equal, 1.43; irregularly and dis- 

 tinctly punctured over surface except at base and apex. 



Hemelytron: Shining, discal area with numerous fine punctures and 

 several coarser ones scattered over full length; clavocorial suture dis- 

 tinctly impressed, bordered by two complete rows of distinct, coarse 

 punctures; limiting impressions of radial veins punctured; clavus with 

 a more or less regular row of distinct punctures on basal half; costa 

 with one setigerous puncture, membrane hyaline, faintly yellowed, 

 with a median brownish cloud; longer than basal width, surpassing 

 apex of abdomen by about one-third its length. 



Terminalia: Gonostylus as illustrated (fig. 194), mesal dorsal tooth 

 short, edge posterior to it deeply concave. 



Length of body: 4.10. 



Type data.— Holotype male (USNM 64425), "St. Croix, V. I., 

 H. A. Beatty, No. 741/1937." 



Discussion. — This specimen bore a label of H. G. Barber as 

 "Aethus sp. ?, near indentatus." Because of this finely studied con- 



501991—60 4 



