CYDNIDAE OF THE WESTERN HEMISPHERE — FROESCHNER 543 



12. Costa with one setigerous puncture; male with apex of genital capsule dis- 



tinctly V-emarginate unisetosus, new species (p. 567) 



Costa with two to four setigerous punctures; male with apex of genital 

 capsule not V-emarginate 13 



13. Clypeus with two subapical setigerous punctures; size smaller, length of 



body 3.7-4.5 laeviculus (Berg) (p. 564) 



Clypeus without subapical setigerous punctures; size larger, length of body 

 4.8-5.5 inconspicuus, new species (p. 562) 



Tominotus albicostns, new species 



DiAGNosis.^ — The creamy white costa plus the imicolorous pronotum 

 will separate this species from all other Cydnidae known to occur in 

 the Western Hemisphere. 



Description. — From a single specimen. Female: Broadly oval. 



Head: Length about tw^o-thirds width, 1.26 :1.80; interocular width, 

 1.28; juga rounded, forming a semicircle, as long as clypeus, latter 

 with two subapical setigerous punctures; jugum with a complete, 

 submarginal, depressed row of coarse setigerous punctures giving rise 

 to long hairlike setae and stout pegs; surface slightly convex, weakly 

 rugose radially, punctate only toward margins; ocelli small, separated 

 from eyes by space about four times an ocellar width; jugum ventrally 

 and maxillary plate (except posteriorly) impunctate. Antenna! seg- 

 ments: I, 0.36; II, 0.33; III, 0.35; IV, 0.40; V, 0.46. Bucculae lower 

 than labial II; labium reaching between middle coxae. Labial seg- 

 ments: I, 0.60; II, 0.76; III, 0.70; IV, 0.46. 



Pronotum: Length less than half width, 1.99:4.26; anterior margin 

 broadly and deeply emarginate ; lateral margins entire, not emarginate, 

 with about thirty setigerous punctures in a single, submarginal row; 

 transverse impression slightly behind midlength, obsolete, marked by 

 an irregular band of slightly coarser punctures ; anterior lobe impunc- 

 tate discally, a few distinct punctures anteriorly and a wide band of 

 them laterally, surface finely alutaceous except on impunctate calli; 

 posterior lobe weakly and finely alutaceous, with fine, irregular punc- 

 tures over most of width. 



Scutellum: Wider than long, 2.87:2.36; finely alutaceous; with 

 numerous irregular, crowded punctures, except basally. 



Hemelytron: Clavus and corium alutaceous; clavus with irregular, 

 partly confluent punctures; corium with numerous punctures, thece 

 more abundant in two rows paralleling claval suture and on exocorium ; 

 costa with twelve setigerous punctures; membranal suture bisinuate, 

 lateral angle slightly acute; membrane longer than basal width. 



Propleuron: More or less alutaceous, punctured anteriorly, in de- 

 pression and in lateroposterior angle. 



Mesopleuron : Evaporatorium separated from posterior margin of 

 segment for nearly full width; lateral area with few distinct punctures; 

 posterior margin entire. 



