CYDNIDAE OF THE WESTERN HEMISPHERE — FROESCHNER 645 



four, small marginal pegs; surface, except clypeus, with coarse, close 

 punctures. Antennal segments: I, 0.10; II, 0.02; III, 0.26; IV and V 

 missing. Labium reaching mesosternum. Labial segments: I, 0.19; 

 II, 0.23; III, 0.25; IV, 0.22. 



Pronotum : Length more than half width, 0.73 : 1 .24 ; anterior margin 

 wider than head, broadly, moderately concave, lateral angle cupped 

 behind eye; lateral margin straight and subparallel on basal half; 

 transverse impression obtuse, punctate; anterior lobe moderately 

 tumid, coarsely punctate laterally, subapically, along midline and 

 over most of disc of calli ; posterior lobe with crowded, coarse punctures, 

 except on dorsolateral face of umbones. 



Scutellum: Length-width ratio, 0.50:0.60. 



Hemely tron : Mesocorium discally virtually hnpunctate ; exocorium 

 closely and coarsely punctate for full width; costal margin narrowly 

 but distinctly ex-planate and recurved, width of explanate area nearly 

 equal to diameter of hind tibia. 



Propleuron : Prosternal carinae higher than labial II, ventral margin 

 distinctly concave. 



Legs: Anterior femur ventrally with straight, simple, oblique spine 

 near basal third; anterior tibia ventrally with very weak, obtuse 

 angulation medially; posterior femur ventrally with subapical spine 

 very short, oblique, simple, acute. 



Terminalia: Gonostylus as illustrated (fig. 290). 



Length of body: 2.21. 



Type data.— Holo type male (JCL) labeled "Horqueta, Paraguay, 

 45 miles E, Paraguay Riv.,I-27, 1934, Alberto Schulze." 



Discussion.— The unusual condition of the explanate costal margin 

 suggested the specific name proposed here. 



Amnestus forreri Distant 



Plate figure 291 

 Amnestus forreri Distant, 1893, p. 452 



Diagnosis.— The present species and cribratus differ from all other 

 species of Amnestus with five marginal pegs on jugum in having nu- 

 merous distmct punctures on the pronotal umbones and having most 

 of the disc of the calli coarsely and closely punctate similar to the 

 lateral parts of the anterior pronotal lobe; they may be separated 

 from each other by the shape of the prosternal carinae— cnfera/ws has 

 these structures concave ventrally with a strongly triangular lobe 

 anteriorly, while forreri has the ventral margin of these carinae vir- 

 tually straight. 



Description.— Based on two males. Elongate-oval, sides almost 



parallel. 



Color: Most of head, anterior lobe of pronotum, scutellum, and 



