CYDNIDAE OF THE WESTERN HEMISPHERE — FROESCHNER 595 



IV, 0.71(0.70-0.73); V, 0.82(0.80-0.83). Bucciilae higher than 

 labial II, abruptly terminated posteriorly; labium reaching posterior 

 half of mesosternum. Labial segments: I, 0.63(0.56-0.70); II, 

 1.05(0.96-1.10); III, 0.72(0.66-0.76); IV, 0.53(0.50-0.56). 



Pronotum: Length more than half width, 2.36(2.21-2.44) :4. 29 

 (4.10-4.52); anterior margin moderately concave; side margins entire, 

 gently narrowed from base, more abruptly so on apical third; trans- 

 verse impression obsolete to absent; with few punctures along trans- 

 verse impression, on middle of posterior lobe and sometimes behind 

 anterior emargination, remainder of surface impunctate. 



Scutellum: Longer than broad, 3.16(3.00-3.35) :2.61(2. 53-2. 69); 

 surface shining, punctured except at base and apex. 



Hemelytron: Corium and clavus finely but distinctly alutaceous; 

 exocorium and mesocorium mostly with very weak to obsolete fine 

 punctures, mesocorium also with two rows of coarser punctures 

 paralleling claval suture; clavus with one row and basal part of 

 another row of punctures; costa broadly refiexed, with two setigerous 

 punctures; membranal suture nearly straight, lateral angle weakly 

 produced; membrane surpassing tip of abdomen, length longer than 

 basal width. 



Propleuron: Shining, impunctate except near acetabulum and in 

 depression; prosternal carinae low, acute. 



Mesopleuron: Evaporatorium reaching lateral margin of segment; 

 lateral area impunctate. 



Metapleuron: Lateral edge of evaporatorium weakly concave; 

 lateral area impunctate. 



Sternites: Finely alutaceous, impunctate except in spiracular area. 



Legs : Moderately long. 



Length of body: 8.47(8.24-8.85). 



Type data. — Holotype female (USNM 64414) labeled "Colima, 

 Volcdn, Mex., L. Conrad." Paratypes, 3 females, as follows: 



Mexico: Volcdn de Colima, L. Conrad, 1 female (USNM). 

 Costa Rica: No exact locality ("la Vruca"?), No. 79, 1 female (Wien). 

 United States: Florida: Redlands, J. C. Lutz collection No. 86, 1 female 

 (JCL). 



DiscussiON.^ — The Florida paratype differs slightly from the other 

 two specimens in having the hemelytra slightly shorter (membrane 

 barely surpassing apex of abdomen) with the membranal suture 

 straighter and not prolonged at lateral angle. 



Subgenus Dallasiellus {Dallasiellus) Berg 



Dallasiellus Berg, 1901, p. 281. 



Diagnosis.- — Species of this subgenus may be recognized by the 

 presence of a complete dorsal carina on the margin of the head plus 



