MACROTOMA. 35 



Genus MACROTOMA. 



Macrotoma, ServiSe, Ann. Soc. Ent. Fr. i, p. 137 (1882) ; Lacord. 



Gen. Coleopt. viii, p. 97 (1869). 

 Prinobius, Mulsant, Ann. Soc. d'Agric. Lyon, v, p. 207 (1842). 



Type, M. serripes (Fab.), Serv., a West-African species. 



Range. African and Oriental Regions, and Mediterranean Sub- 

 region. 



d . Head somewhat elongated behind the eyes ; clypeus de- 

 pressed, limited above by an arcuate impression ; anteuniferous 

 tubers not distant from each other, the narrow concave space 

 between them impressed with a median groove ; eyes not deeply 

 emarginate in front ; mandibles vertical or oblique, straight at 

 base, incurved at tip, each with one or two teeth on inner edge. 

 Antennae either longer or shorter than the body, usually asperate or 

 denticulate near the base, 11-jointed ; first joint stout, somewhat 

 compressed, third elongated and thickened, at least as long as the 

 two succeeding joints united. Pronotum rather strongly deflexed 

 at the sides, especially just before the middle, with its lateral 

 edges brought close to the outer angles of the acetabula and to the 

 prosternal sutures. Each edge armed with a series of short spines 

 or teeth. Elytra much more than twice as long as their width 

 across the base, rounded at the apex, usually dentate at the 

 suture. Legs rather long, more or less spinose beneath ; tarsi 

 long, with the first joint narrow and much longer than the second. 

 Intercoxal process of prosternum not strongly raised, flattened 

 and horizontal behind. 



$ . Antenna? shorter, with the first and third joints much less 

 thickened and not asperate ; lateral edges of prothorax more 

 strongly spined and more convergent in front ; legs shorter. 

 less asperate and spinose, the first joint of the tarsi relatively 

 shorter. 



In the species of our second section that correspond to the genus 

 Prinobius of Mulsant, the male differs further from the female by 

 the nature of the puncturation of the pronotum, prosternum, 

 mesosternum and the sides of the metasternum. 



I. No marked sexual difference in the puncturation of the prothorax, 

 mesosternum and metastemum. 



30. Macrotoma fisheri, C. O. Waterh. A. M. N. H. (5) xiv, p. 382 



(1884). 



J . Reddish brown, with the head, basal three joints of the 

 antennas and the front legs neai-ly black, the middle and hind 

 legs and all the tarsi piceous, the elytra yellowish brown but of a 

 darker colour at the base ; hind breast clothed with fulvous- 

 yellow pubescence. Head opaque, strongly and closely punctured 



