534 PROCEEDINGS OF THE NATIONAL MUSEUM vol. los 



Whether Ligyrodes might be retained as a subgenus must be decided by 

 a complete revision of the genus. 



Bothymis sallaei (Bates) 



Ligyrus sallaei Bates, 1888, p. 318. 

 Ligyrodes sallei Casey, 1915, p. 184. 

 Ligyrodes aztecus Casey, 1915, p. 184. 

 Ligyrodes propinquus Casey, 1915, p. 183. 



Length 18 to 23 mm., width 10 to 12 mm. Obloug, convex, 

 shining, dark red-brown to piceous. Clypeus apically bidcntate, the 

 uptm*ned, triangular teeth usually contiguous at base, surface moder- 

 ately rugose, not as finely or closely as in relictus (Say), Head 

 slightly concave and similarly rugose back of the very widely inter- 

 rupted frontal carina which does not extend to the lateral margins, 

 the two parts directed posteriorly as in relictus but appearing more 

 as blunt tubercles; basally smooth with a few fine punctures between 

 and above the eyes. Pronotum convex, apically angulate at middle 

 but without tubercle and depression, sides evenly arcuate, margined, 

 anteriorly convergent, base sinuate witliout margin; surface with 

 rather evenly distributed fine or moderate punctures which become 

 coarser at sides and toward posterior angles, generally separated by 

 two or more diameters, possi])ly a little finer and not as close as in 

 relictus. Scutellum v/ith a few scattered very fine punctures. Elytra 

 only slightly wider behind, punctiu'es as in relictus but not as coarse. 

 Pygidium without scabrous sculpture except very narrowly at base in 

 the male, coarsely punctate throughout, closely at base and sides, 

 separated by less than their diameters, gradually sparser and finer 

 apically. Underside anteriorly moderately hairy, the prostcrnal 

 process back of the anterior coxae with a round, convex, smooth, 

 shiny part in front set off from a posterior, flat, dull, smooth posterior 

 part bordered b}^ stifi" hau-s. Anterior tibia smooth outside the 

 longitudinal row of coarse, setigerous punctures, a small, distinct, 

 extra tooth between the second and third large teetJi; male claw 

 segment swollen, the anterior claw broad and abruptly bent at base. 

 Aedegus distinct (see fig. 5a) . 



liECTOTYPE: British Museum (Natm-al History). 



Type locality: Almolonga, Mexico. 



Specimens examined: 151. 



Distribution: Southern Texas and Mexico. vSee map {f:^. 3). 



UNITED STATES: Texas: Brownsville, Del Rio, Dimmit Co., Ilarlingen, 

 Hidalgo Co., Houston, Kingsvillo, New Braunfels (Comal Co.), Robstown 

 (Nueces Co.), Weslaco. MEXICO: Chihuahua: Tcxcoco. Coahuila: La 

 Babia (Tanque de Malone), Mosquiz (Rio Sabinas). Federal District: 

 Mexico City. Guerrero: Teloloapdn. Mexic6: Chapingo. More los: Cuer- 

 navaca, Teguesquitengo. Nayarit: Jalisco, Tepic. Nuevo Le6n: Monterrey. 



