CYDNIDAE OF THE WESTERN HEMISPHERE — FROESCHNER 437 



Pronotum: Length about half of width, 0.88(0.86-0.92) : 1.65(1.57- 

 1.67); anterior margin deeply, simply emarginate; lateral margins 

 straight and subparallel on basal third, posterior angle hidden by 

 swollen lateral portion of posterior lobe, submarginally with six 

 setigerous punctures bearing short, fine setae; transverse impression 

 weak but distinct across full width, medially expanded posteriorly 

 and anteriorly between calli as punctate basin (fig. 67) ; anterior lobe 

 with strong punctures laterally and subapically, with scattered minute 

 punctures on calli; posterior lobe distinctly punctate across full 

 width, usually with much finer punctures between. 



Scutellum: Longer than wide, 1.25(1.20-1.33) : 1.00(0.93-1.03) ; sur- 

 face shining, and, except basal angles, with numerous large and small 

 punctures. 



Hemelytron: Clavus and corium polished; clavus with row of punc- 

 tures double at base ; mesocorium with two complete rows of punctures 

 paralleling claval suture, elsewhere with numerous distinct punctures; 

 exocorium more densely punctate than mesocorium; costa flattened 

 and punctate, without setigerous punctures; membranal suture 

 weakly sinuate, lateral angle feebly produced; membrane variable; 

 longer than basal width in macropterous forms and shorter than basal 

 width in brachypterous forms. 



Propleuron: Anterior convexity alutaceous, with crowded small 

 punctures on anterior half; depression with several coarse punctures. 



Mesopleuron: Evaporatorium usually extended into posterolateral 

 angle but not reaching lateral margin of segment; lateral area with 

 numerous coarse punctures. 



Metapleuron: Terminal lobe of peritreme large, reaching almost to 

 convex lateral margin of somewhat limited evaporatorium; lateral 

 area with numerous coarse punctures. 



Legs: Anterior tibia with five or six stout spines on dorsal margin. 



Sternites: Medially alutaceous and minutely punctate, laterally 

 with numerous close, coarse punctures and longitudinal rugae. 



Terminalia: Genital capsule shining, or weakly alutaceous, punc- 

 tate, more densely so laterally, apical margin straight; gonostylus as 

 illustrated (fig. 210). 



Length of body: 3.60(3.46-3.74). 



Female: Similar to male. 



Head: Length-width ratio, 0.59(0.54-0.70) :0.81 (0.73-0.91); inter- 

 ocular width, 0.52(0.46-0.63). Antennals: I, 0.15(0.14-0.17); II, 

 0.21 (0.20-0.23) ; III, 0.21 (0.20-0.26) ; IV, 0.29(0.26-0.33) ; V, 0.37(0.33- 

 0.40). Labials: 1,0.19(0.17-0.21); II, 0.38(0.36-0.41); III, 0.29(0.24- 

 0.33); IV, 0.26(0.24-0.30). 



Pronotum: Length-width ratio, 0.87(0.83-0.97) : 1.64(1.53-1.89). 



Scutellum: Length-width ratio, 1.27(1.18-1.46) :0.97(0.91-1. 10). 



