DIAPERINI NORTH OF MEXICO — TRIPLEHORN 429 



Types.— Holotype male, USNM 66050: Nogales, Ariz., Aug. 28, 

 1906, F. W. Nunenmacher. Paratypes: 5, same data (CAS); 1, 

 same data (Minn); 2 same data (KSU) ; 6, Nogales, Ariz., Sept. 25, 

 1906, F. W. Nmienmacher (CAS); 1, Nogales, Ariz., Aug. 24, 1906, 

 F. W. Nunenmacher (CAS); 1, Nogales, Ariz., Aug. 12, 1906, F. W. 

 Nunenmacher (CAS); 2, same data (USNM); 3, Patagonia, Ariz., 

 June 6, 1936, M. Cazier (CSS); 41, Baboquivari Mts., Ariz., F. H. 

 Snow (UKan); 5, same data (CAT); 2, same data (MCZ, H. C. Fall 

 collection); 1, Chiricahua Mts., Ariz., July 22, 1953, DJ and JNK 

 (OSU); 116, Chiricahua Mts., Ariz. July 9, 16, 23, 30, Aug. 7, 15, 

 1959, DJ and JNK (OSU, CAT, BMNH, UMMZ). Also examined: 

 1 specimen, Albuquerque, N. Mex. Aug. 1919, Long (CAS). 



Platydema inquilinuni Linell 



Plate 5 (Figs. 35, 36) 

 Platydema inquilnum Linell, 1899, p. 183. 



Description. — Elongate elliptical, moderately convex, dark red- 

 dish brown, feebly shining. Head with clypeus very large, trape- 

 zoidal, posterior angles but narrowly separated from eyes, epistomal 

 margin truncate; eyes coarsely faceted, broadly but shallowly emargi- 

 nate anteriorly, slightly convex dorsally, sunken below surface of 

 head medially, separated ventrally by about 1.5 (1.3-1.6) times the 

 longer axis of one eye; antennane, mouthparts, and legs concolorous 

 with dorsal surface; antennae short, not extending posteriorly beyond 

 pronotal base, terminal segment sometimes slightly lighter than those 

 preceding; terminal segment of maxillary palpus narrowly oval, 

 attenuate apically, obliquely truncate at tip; mentum conspicuously 

 bearded with coarse hairs, especially in males; entire head surface finelj^ 

 and densely punctate. Pronotum transverse, about tv>dce as broad 

 as long, sides feebly arcuate, rather strongly convergent from base to 

 apex, margins finely beaded, not at all expanded; apex truncate, base 

 broadly bisinuate; apical angles obtuse and narrowly rounded, basal 

 angles abruptly acute, slightly overlapping humeral angles of elytra; 

 entire surface finely and densely punctured. Elytra with lateral 

 margins evenly arcuate, bead fine and slightly reflected ; striae scarcely 

 impressed, finely punctured; intervals flat on disc, rather strongly 

 convex laterally and apically, finely and rather densely punctured. 

 Ventral surface of pronotum flat, edges thickened, finely and rugosely 

 punctured ; prosternal process prominent, swollen in front of anterior 

 coxae, weU developed between them, sulcate on each side of middle, 

 acute and prolonged behind but deflected apically in a broad arc; 

 metasternum with a few minute, widelj^ scattered punctures; pleural 

 sclerities and abdominal sternites more coarsely and densely punc- 



767-659—65 6 



