20 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 123 



reported: Mexico: Durango: "Ciudad in Durango, 8100 feet." 

 United States: Arizona: Cochise Co.: Chiricahua Mountains, July 

 20, 1950, July 1936, and June 24; Pine Creek, Chiricahua Mountains, 

 June 24, 1897; Rustler Park, 8000-9000 feet, Chiricahua Mountains, 

 July 20, 1950. Maricopa Co.: Phoenix. 



Haematochiton maderi (Delkeskamp), new combination 



Figures 9, 10 



Triplax maderi Delkeskamp, 1957, p. 114. 



Diagnostic description: Coloration of head and elytra black. Over- 

 all shape elongate-elliptical; two ends of body about equally para- 

 bolically rounded; length 2.1 times the width. Eyes small, finely 

 faceted, but coarser than in Triplax. Ocular striae terminating at 

 antennal insertions, the epistoma immarginate. Antennae extending 

 to procoxae, club 4-segmented, about twice as long as wide, densely 



Figure 9. — Haematochiton maderi 

 (Delkeskamp), new combina- 

 tion: underside of head. 



clothed with setae of moderate coarseness; segment 3 of stem about 

 equal in length to segments 4 and 5 together. Maxillary palpi ter- 

 minal segment width to length ratio about 1:1 (fig. 9), semicircular, 

 without brush. Mention moderately large. Terminal labial palpi 

 segments more cylindrical than in Triplax. Postmandibular lobes of 

 moderate development (fig. 9). Pronotum subtrapezoidal, apical 

 width about one-fifth less than the basal width, sides subparallel for 

 about one-half distance nearest base. Pronotum yellow with six black 

 spots, two of these are in one-fifth of the pronotum behind apex, the 

 others are evenly transversely spaced medially. Pronotum margined 

 basally, and laterally, immarginate apically between the eyes. Pro- 

 notal angle pores moderately small and relatively shallow. Elytra 

 margined basally. Scutellum subcordate. Body below similar to 

 Triplax with the following exceptions: the prosternal lines along the 

 coxal inner edges are strong, straight, and subparallel; metasternal 

 coxal lines absent; abdominal coxal lines short. Coloration: elytra 

 and head black; pronotum yellow with six black spots, two of these 

 at one-fifth of the protonum behind apex, the other four evenly trans- 

 versely spaced medially; the following ferrugineous: antennae, under- 

 side of head (medially), legs, mesothorax, metathorax, and abdomen 



