HALECIA.-— HIPPOMELAS. 7 



punctured. Thorax slightly narrowed in front, sparingly punctured on the disk, more 

 thickly and more strongly so at the sides (but not quite so closely as in H. beltii) ; 

 there is a shallow longitudinal impression in the middle of the front margin, and a 

 small fovea at the base; above the anterior angle is an olive-green spot; just above this 

 there is a very shallow impression ; and above the posterior angle is a similar impression, 

 which is almost united with the anterior one; these impressions are slightly tinted 

 with coppery. Elytra similar to those of H. beltii, but rather broader, and with the 

 striae much more deeply impressed and more strongly punctured, the interstices are 

 more convex and the dorsal ones more smooth ; the spots (seven on each elytron) are 

 placed as in H. beltii, but are of a deep purple-blue ; the fourth interstice unites with 

 the eighth at some distance from the apex, and is continued as a distinctly raised, deep- 

 blue costa nearly to the apex. The upperside of the femora and the tibiae are dark 

 blue ; the tarsi are blue-green. 



TRACHYCELE. 



Trachykele, Marseul, Abeille, ii. 1865, p. 149 . 



1. Trachycele blondeli. (Tab. I. fig. 8.) 



Trachykele blondeli, Marseul, Abeille, ii. 1865, p. 150. 

 Hab. Mexico. 



This very interesting insect is said to come from Mexico ; but there is some doubt as 

 to the correctness of this locality. There is a single example in the British Museum, 

 which is here figured, but without locality. 



GYASCUTUS. 



Gyascutus, LeConte, Trans. Ac. Phil. I860, xi. p. 189. 



The species of this genus occur in the southern parts of North America. I have 

 not seen any specimens from Central America : one species, however, is recorded as 

 having been taken during the Mexican-Border Expedition in Sonora ; and I therefore 

 include it here. 



X 1. Gyascutus caelatus. 



Chalcophora calata, LeConte, Proc. Ac. Phil. 1858, x. p. 67 \ 

 Gyascutus ceelatus, LeConte, Trans. Ac. Phil. 1860, xi. p. 190. 



Hab. Mexico, Ures, Sonora (Dr. Webb l ). 



HIPPOMELAS. 



Hippomelas, Lap. & Gory, Mon. ii. p. 92. 



I think it is to be regretted that this genus has been confounded with Psilo_ptera in 

 Lacordaire's ' Genera des Coleopteres,' and also in Gemminger and Harold's Catalogue ; 



