MORGAN HEBARD 



47 



proximal portion of abdomen, shining cinnamon brown, shading in remaining por- 

 tion of abdomen to blackish brown. Cerci prout's brown. 



Length of body, 8.5; length of pronotum, 2.35; width of pronotum, 3; length of 

 tegmen, 8.4; width of tegmen, 2.8; length of caudal tibia, 3.2; length of caudal 

 tarsal joints, 2.8 mm. 



The type is unique. 

 Chromatonotus lamprus«3 new species (Plate III, figures 6 and 7.) 



This handsome species is closely related to C. notatus (Brunner), 

 differing strikingly only in having the pale margin of the pronotum 

 cephalad much narrower, all but the costal field of the tegmina 

 rather strongly suffused, not having the tegmina with humeral 

 trunk strikingly darker than the remaining portions and in the 

 very differently specialized male genitalia. 



Compared with C. injuscatus (Bruner), these species are seen 

 to be larger, with pale marking caudad on disk of pronotum strongly 

 transverse, not subcircular with a ray extending cephalad, as is 

 normal in that species. 



Type. — cf ; Tabernilla, Canal Zone, Panama. ]\Iay 14, 1907. 

 (A. Busck.) [United States National Museum.] 



In addition to the generic characters described, we would note the following. Size 

 (averaging) larger than in infuscatus, slightly smaller than in 7wtati(s. Interocular 

 width equals length of first antennal joint. Ocellar spots large and conspicuous. 

 Enlarged fifth (distal) joint of maxillary palpus equal in length to third joint, 

 slightly longer than fourth joint. Wings with greatest width of anterior field 

 about one-fourth its length; intercalated triangle nearly as wide as deep. 



Supra-anal plate feebly transverse, length three-quarters proximal width, free 

 margins straight convergent to distal portion, which is less decidedly chitinous, sup- 

 plied with long hairs, broadly rounded but with a minute median emargination. 

 Cerci small, elongate and slender (ten to eleven joints), the sutures well marked, 

 the lateral margins of the joints nearly straight, but each (from six to ten) distinctly 

 narrower than its predecessor; dorsal surface flat; ventral surface of each joint 

 strongly convex with \'ery narrowly cingulate lateral margins. Concealed geni- 

 talia: paired plate beneath supra-anal plate highly specialized; sinistral half chit- 

 inous, flattened against wall of anal orifice, with a small slender process, with apex 

 sharply rounded, situated below base of cercus and directed caudad; dextral half 

 developed into two lobes with apex of each produced in an elongate aciculate pro- 

 jection, these parallel and directed mesad."' 



*^ From Xafxirpoi = handsome. 



" In males of the closely related notalus the dextral half is developed into a single lobe 

 supplied with numerous short sharp teeth. 



MEM. AM. ENT. SOC, 4. 



