392 PROCEEDINGS OF THE NATIONAL MUSEUM vol. ni 



0.30). Labial segments: I, 0.45(0.43-0.50); II, 0.55(0.50-0.63); III, 

 0.43(0.40-0.46); IV, 0.31(0.30-0.33). 



Pronotum: Length-width ratio, L38(L30-L49):2.74(2.60-2.93). 



Scutellum: Length-width ratio, 1.75(L62-L89):L78(L62-L89). 



Length of body: 4.42(4.07-4.85). 



Type data. — Uhler gave the locality of the type (USNM) as 

 "Galveston Island, Texas." 



Specimens studied.— 38 males, 38 females. 



United States: Arizona: Globe, Huachuca Mts., Patagonia, Pinery Canyon 

 (Chiricahua Mts.); March, July. California: Coral Beach (Los Angeles Co.), 

 Hynes, San Diego Co., Saticoy; April, May, October. New Mexico: Mesilla 

 Park, Deining; August, December. Texas: Austin, Galveston, Padre Island, 

 Tyler, Victoria; February to May. 



Mexico: Distrito Federal: Pen6n Viejo; April, June. Mexico: Tejupilco; June. 

 Sinaloa: MazatMn, Ptosario; March. Sonora: Guaymas, Yavaros; July. Yucatdn: 

 Yucatdn. 



Discussion. — This appears to be a common species on the main- 

 land within its range. It is not yet known to occur on any of the 

 islands of the Caribbean Sea, thereby differing from the members of 

 the subgenus RhyUdoporus. 



Pearse's (1938, p. 239) note on this species, "in rubbish," in the 

 Mexican State of Yucatan, was accidentally entered under the family 

 name Fulgoridae. One of Pearse's specimens was seen during this 

 study. In the collection of the Museum of Comparative Zoology, 

 Harvard University, there is a specimen collected by W. M. Wheeler 

 and mounted with two ants, suggesting the possibility that they were 

 found in close association. The hemipteron is erroneously labeled as 

 Homoloporus congruus. 



Subgenus Rhytidoporus (Findalia) Jensen-Haarup, new status 



Findalia Jensen-Haarup, 1926, p. 52. 



Diagnosis. — The presence of but two submarginal setigerous 

 punctures on each jugum readily separates this subgenus from the 

 other two, each of which bears a row of submarginal setigerous 

 punctures on jugum. 



Description. — Head: Jugum with two submarginal setigerous 

 punctures, one immediately in front of eye, one near middle; vertex 

 with curved, obtuse carina between ocelli. 



Pronotum: Transverse impression absent; surface nearly impunc- 

 tate; side margins with but four submarginal setigerous punctures. 



Hemelytron: Membrane small, about one-fourth hemelytral length. 



Metapleuron: With distinct auricular process at osteole; evapor- 

 atorium reaching side margin of segment. 



