640 PROCEEDINGS OF THE NATIONAL MUSEUM vol. iii 



Terminalia: Gonostylus as illustrated (fig. 287). 



Length of body: 2.08. 



Female: Similar to male, but without secondary sexual modifica- 

 tions. 



Head: Length-width ratio, 0.40:0.50; interocular width, 0.32. 

 Antennal segments: I, 0.13; II, 0.04; III, 0.22; IV, and V missing. 

 Labial segments: I, 0.16; II, 0.23; III, 0.29; IV, 0.20. 



Pronotum: Length-width ratio, 0.84:1.22. 



Scutellum: Length-width ratio, 0.44:0.56. 



Length of body: 2.10. 



Type data.— None of the three specimens from the Signoret 

 collection (Wien) bears a type designation, but all are from Mexico 

 and bear labels indicating that Signoret had determined them as 

 this species. Thus, these may be accepted as the type series because 

 Signoret listed the original locahty simply as "Mexique." The 

 specimen labeled "Bilimek" is here designated lectotype. 



Specimens studied. — 3 males, 2 females: 



Mexico: No exact locality, I male, 1 female (Wien). Coricavaca, 1871, 

 Bilimek, 1 male (Wien). San Luis Potosi, July 17, 1947, intercepted on orchids 

 at Laredo, Tex., 47-9428, 1 female (USNM). Oaxaca, Mav 13, 1938, R. Green- 

 field, 1 male (USNM). 



Discussion.- — Several discrepancies between Signoret's specimens 

 of hrunneus and his published work may be pointed out here: clypeus 

 actually slightly surpasses juga; anterior pronotal lobe has median 

 punctures concentrated in a broad, median line, not in two rows; 

 there are no setigerous punctures across calli; pronotal transverse 

 impression more nearly median than shown; metapleuron not showing 

 the complicated "fold" pattern depicted anterior and lateral to the 

 peritreme; and mesocorium has several obsolete but noticeable 

 punctures apicall3^ 



Amnestus championi Distant 



Plate figure 286 

 Amnestus championi Distant, 1893, p. 453. 



Diagnosis. — Among those species of the genus with five pegs on the 

 margin of each jugum, this one may be recognized by the closely 

 punctate umbones and the subbasal fuscous spot on the corium. 



Description.- — Color: Head, pronotum, and scutellum dark brown 

 to black, shining, somewhat paler along free edges of head and 

 pronotum; clavus and coria translucent yellow, latter with distinct 

 fuscous spot near base and usually faint clouding along apical margin ; 



