CYDNIDAE OF THE WESTERN HEMISPHERE FROESCHNER 455 



opening posteriorly on the peritreme, although the trough from the 

 opening does extend onto the mesal part of the lobe. 



One of the specimens from Texas was labeled as having been col- 

 lected on parsnip, Pastinaca sativa. Blatchley (1926, p. 78) reported 

 specimens as having been "swept from herbage in low, moist 

 meadows." 



Genus Pangaeus Stal 



Pangaeus St&l, 1862, p. 95. 



Homaloporus Uhler, 1877, p. 376. New synonymy. 



Diagnosis. — The unmodified terminal part of the peritreme coupled 

 with the presence of an impressed, subapical line which extends from 

 side to side on the pronotum will separate Pangaeus from all other 

 genera of Cydnidae. 



Description. — Size small to medium, oval, widest approximately 

 at or shghtly behind middle; dorsum much less convex than venter. 



Head (figs. 24, 46-49): Distinctly broader than long, dorsum 

 distinctly depressed to moderately convex; juga as long as or longer 

 than and more or less convergent in front of clypeus, \vith a fine 

 marginal carina above; submargin with one to six setigerous punc- 

 tures, or a complete row from eye to apex of jugum; eyes large, 

 moderately projecting; ocelli well developed, located on or behind a 

 line connecting hind margins of eyes; antennae 5-segmented, II 

 usually shortest, V longest; bucculae low, usually not as high as labial 

 II; labium reaching between middle coxae, II longest, slightly com- 

 pressed but not foliaceously lobed, IV shortest. 



Pronotum: Wider than long, distinctly narrowed from near base; 

 side margins carinate, submarginal row of 5 to 9 or 18 to 20 setigerous 

 punctures; anterior margin moderately to shghtly concave, with a 

 collum distinctly limited posteriorly by a sharply impressed line 

 extending from one anterior angle to the other (even when punctured 

 this line is distinct across its full width); transverse impression sub- 

 median, usually rather distinct and with a row of punctures; posterior 

 margin broadly, shallowly convex; all angles rounded. 



Scutellum: Longer than wide, triangular; apex narrowed, width less 

 than half length of membranal suture; disc sparsely to abundantly 

 punctured. 



Hemelytron: Corial areas well-defined; membranal suture straight, 

 lateral angle somewhat acute; costa with one to twelve setigerous 

 punctures; membrane not over two-fifths of hemelytral length, sur- 

 passing apex of abdomen. 



Propleuron: Impunctate or with few punctures in depression; pro- 

 sternal carinae low, distinct. 



Mesopieuron: Flattened; evaporatorium either entire (fig. 103) and 

 reaching uninterrupted in posterolateral angle of segment (subgenus 



