CYDNIDAE OF THE WESTERN HEMISPHERE FROESCITNER 639 



Amnestus brunneus Signoret 



Plate figure 287 



Amnestus bninnetis Signoret, 1883, p. 370, pi. 10, fig. 194.— Uhler, 1886, p. 3.— 

 Lethierry and Severin, 1893, p. 75. 



Diagnosis. — Among the species with five marginal pegs on each 

 jugiim and the low, rounded prosternal carinae wliich are not higher 

 than labial II, brunneus may be characterized by the short clypeus 

 which only very slightly surpasses apices of juga and by the strongly 

 contrasting yellowish (in large part) coria with the dark brown or 

 brownish black pronotum and scutellum. 



Description.- — Based on one male and one female compared with 

 the type. 



Color: Head, pronotum and scutellum dark brown, contrasting 

 strongly with yellowish hyaline clavus and corium, latter with broad 

 apical margin weakly to distinctly fuscous; underside brownish, 

 legs tannish brown with apices of femora and tarsi yellow. 



Male: Elongate-oval, slightly widest behind middle. 



Head: Length more than three-fourths width, 0.40:0.52; inter- 

 ocular width, 0.32; anterior outline elongate, clypeus very slightly 

 surpassing apices of juga; surface shining, strongly punctate on bases 

 of juga and on interocular area; jugum with five marginal pegs. 

 Antennal segments: I, 0.11; II, 0.03; III, 0.23; IV and V missing. 

 Labium reaching between middle coxae. Labial segments: I, 0.16; 

 II, 0.22; III, 0.29; IV, 0.20. 



Pronotum: Length two-thirds width, 0.81:1.21; anterior margin 

 shallowly emarginate; lateral margin very shallowly emarginate sub- 

 basally; transverse impression moderately indicated, marked by row 

 of coarser punctures; anterior lobe weakly tumid, with two more or 

 less complete rows of coarse punctures subapically and laterally, 

 calli shining with few scattered, minute punctures, midline wdth 

 double row of fine punctures; posterior lobe, except umbones which 

 project to anterior lobe as a ridge, with numerous separated punctures 

 becoming finer posteriorly. 



Scutellum: Wider than long, 0.60:0.50. 



Hemelytron: With few punctures near apex; exocorium closely 

 and uniformly punctured over entire area. 



Propleuron: Prosternal carinae not higher than labial II, broadly 

 rounded in profile. 



Legs: Anterior femur with premedian, oblique, stout spine un- 

 equally furcate; anterior tibia vaguely, obtusely angled ventrally 

 near midlength; posterior femur ventrally with slender, oblique, 

 subapical spine about half as long as femoral height, dorsally with 

 distinct, subapical angulation. 



