CYDNIDAE OF THE WESTERN HEMISPHERE — FROESCHNER 471 



punctures; membranal suture nearly straight, lateral angle weakly 

 produced; membrane longer than basal width, distinctly surpassing 

 apex of abdomen. 



Propleuron: Shining, with few punctures in depression and antero- 

 ventral angle; prosternal carinae less than half as high as labial II. 



Mesopleuron: Evaporatorium reaching posterior margin for more 

 than half its length ; lateral area rugopunctate. 



Metapleuron: Evaporatorium with lateral margin straight; lateral 

 area with row of obsolete, broad punctures adjacent to edge of evap- 

 oratorium. 



Legs: Posterior femora not tuberculate ventrally. 



Sternites: Shining, with few punctures and longitudinal rugae 

 laterally. 



Length of body: 5.57(5.45-5.78). 



Type data. — Holotype female (USNM 64422), "Brownsville, 

 Texas, Wickham, col. C. F. Baker." Paratypes as follows: 



Texas: Brownsville, 1929, 1 female (USNM); 25 miles southeast of Harlingen, 

 Sept. 21, 1945, E. Hardy, nest of Neoloma niicropus BD., 1 female (JAS). 



Discussion: The subapical transverse impression of the pro- 

 notuni, while distinctly punctured, is, nevertheless, complete from 

 one side of the pronotum to the other. 



Pangaeus (Homaloporus) rugiceps HorvdJh 



Plate figures 48, 221 



Pangaeus rugifrons Signoret (nee Herrick-Schaeffer, 1839, p. 97, a synonym of 



Pangaeus bilineatus), p. 252, pi. 8, fig. Ill, 1882. 

 Pangaeus rugiceps Horvdth, p. 236, 1919. 



Diagnosis.' — At present, this is the only species in the subgenus 

 with a single submarginal setigerous puncture in front of an eye. 



Description. — Male: Oval, widest at or slightly behind midlength. 



Head: Length more than two-thirds width, L17(L10-L26) :L59 

 (L52-L70); interocular width, 0.99(0.95-1.06); anterior outline an 

 elongated semicircle, juga longer than apically narrowed clypeus and 

 nearly or quite contiguous beyond it; juga impunctate, with strong, 

 mostly transverse rugae, submarginally with one setigerous puncture 

 anterior to eye; ocelli moderately large, separated from eye by space 

 somewhat greater than transverse ocellar width; jugum ventrally in 

 large part rugopunctate; maxillary plate polished, impunctate. 

 Antennal segments: I, 0.28(0.26-0.30); II, 0.29(0.26-0.32); III, 0.39 

 (0.36-0.43); IV, 0.42(0.42-0.44); V, 0.46(0.44-0.49). Bucculae about 

 half as high as labial II, labium reaching between middle coxae. 

 Labial segments: I, 0.52(0.48-0.56); II 0.84(0.80-0.93); III, 0.64 

 (0.60-0.68); IV, 0.46(0.40-0.50). 



