268 Mr. C. J. Gahan's additions to the 



To the previously known localities may be added 

 Mexico, Durango city, Aguas calientes city, Monterey in 

 Nuevo Leon, and Tula in Hidalgo {Hi'xje). 



Bates had already, with some doubt, but, as it proves, 

 correctly, referred a single example from Northern 

 Sonora to this species. The considerable series of ex- 

 amples since sent by Herr Hoge are mostly from Durango 

 city ; a few only from the other localities cited. These 

 specimens all agree in having the first antennal joint 

 and the femora red ; the two front pairs of tibise are 

 usually dark red, but are in some cases almost entirely 

 blackish ; the hind tibiae are generally more or less black. 

 The full number of elytral spots are usually present, and 

 of a fair size ; but one or both of the two antemedian 

 spots of each elytron may be absent or much reduced in 

 size. The prothoracic umbone is somewhat oblong in 

 shape, its sides, \vhich are sharply limited, being only 

 slightly convex in outline ; it is traversed along the 

 middle by a feeble groove or depression, so that its 

 surface is usually slightly concave from side to side. 

 Many of the Mexican specimens agree very closely in 

 every resioect with a Californian example in the British 

 Museum collection. In order to feel quite sure of the 

 identity of the sj)ecies, I have submitted a couple of 

 specimens to Dr. Horn for his inspection, and he has 

 kindly replied that they are without doubt to be referred 

 to the Tetraopes femoratas of Leconte. The Mexican 

 specimens come nearest, I think, to the varieties basalis 

 and oregonensis of Leconte, as distinguished by Dr. Horn 

 (op. supra cit.) ; and I have reason to believe that one or 

 more of the other Mexican species will, on comparison 

 with authentic North American specimens, prove to 

 belong to other varieties of femoratus. 



Mecas marmorata, sp. n. (PL XIL, fig. 7). 



Elongata, pube grisea fulvo-varia obtecta ; capite protlioraceqne 

 et elytris punctatis, his supra planis, medio leviter dcpressis ; 

 antennis {^) quam corpora paullo longioribus, articulis lo, 2o, 

 lloque nigro-fuscis, articulis 3o ad 7uni subtus cinereis, supra 

 testaceis vel fuscis, articulis 80 ad lOum omnino cinereis. Long. 

 10—13 mm. 



Hah. Mexico, Amula (GOOO ft.) and Xucumanatlan 

 (7000 ft.) in Guerrero (H. II. Smith). 



