572 SEREICOENIA. 



decumbent fulvous hairs, the breast with longer similarly-coloured hairs, the rest of the elytra finely 

 pubescent, the long marginal hairs black, except at the shoulders. Head coarsely, thickly punctate, the 

 eyes large and prominent; maxillary palpi slender, the apical two joints equal in length; mandibles 

 rather short, abruptly bent inwards at the middle ; antennae long and slender, joints 2 and 3 very short, 

 subequal, 4-10 elongate and subparallel, 4 three times as long as 3, 11 constricted before the apex. 

 Prothorax nearly twice as broad as long, rounded and slightly dilated at the sides anteriorly, with mode- 

 rately produced divergent hind angles ; the surface closely, somewhat coarsely punctate, the basal median 

 lobe longitudinally sulcate. Scutellum closely punctured. Elytra nearly three times as long as the head 

 and prothorax, and a little wider than the latter, moderately gibbous at the base, and gradually narrowing 

 posteriorly ; vaguely sulcate, with the interspaces very little raised, and closely, rather finely punctate, 

 the punctuation becoming sparser at the base. 

 Length 14, breadth 15 millim. 



Hab. Mexico, Teapa in Tabasco (II. H. Smith). 



One specimen. Allied to S. chevrolati, Guer., but differing from it in the very short 

 third joint of the antennas (this being nearly twice as long as the second in that species) 

 and the much shorter elytra, the latter closely and rather finely punctured and vaguely 

 sulcate, without distinct costee. The puncturing of the elytra is unusually close, except 

 at the base, and the third joint of the antennas is scarcely longer than the second. The 

 apices of the elytra are black. 



The less dilated thorax, the shorter third antennal joint, and the absence of the 

 coarse impressions at the apex of the elytra separate this species from S. signaticollis. 



27. Scaptolenus femoralis. (Tab. XXV. figg. 24, 24 a, 25, 6 , var.) 



<$ . Cebrio femoralis, Chevr. Col. Mex., Cent. ii. fasc. 8, no. 200 (Sept. 1835) (nee Lee.) 1 . 

 J. Scaptolenus femoralis, Chevr. Ann. Soc. Eat. Fr. 1874, pp. 509, 515, t. 1. fig. 5 (nee $ ) 2 . 

 cf . Cebrio flavipes, Sturm, in litt. 



Hab. Mexico (Salle, ex Sturm), Orizaba (Salle 2 ; coll. Oberihur, ex Chevr olat 1 ), 

 Jalapa (Hoge) ; Guatemala (Salle, Mus. Brit.) ; Costa Rica, Cache (Bogers) ; Panama, 

 Bugaba, Volcan de Chiriqui (Champion). 



Of this species we possess two male specimens only from Mexico ; but in M. Rene 

 Oberthiir's collection there is a fair series of males from that country, including what 

 appears to be Chevrolat's original type, from Orizaba. The female insect described 

 and figured by Chevrolat under the name S. femoralis is here referred to S. chevrolati, 

 We have, however, numerous males from Chiriqui, and also others from Costa Eica, 

 that are no doubt referable to S. femoralis. The males of this species are usually 

 black or piceous above, with the thorax lighter in colour in some specimens ; in the 

 two examples from Costa llica the thorax is fulvous. According to Guerin (Rev. Zool. 

 1844, p. 256), S. femoralis differs from S. chevrolati, in the male sex, in the deep 

 brownish-black colour of the upperside, the much broader thorax, especially in front, 

 and the much less elongate, less parallel elytra. These differences apply to the 

 specimens here referred to these species, but it must be remarked that two males only 



