10 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 10/ 



11. 



MOLORCHUS MINOR. 



Order Coleoptera. Fam. Cerambycidae LaL 

 Type of the Genus Necydalis Umbellatarum Linn. 



MoLOBcnus Fab. Necydalis Linn., Lat. 



AntenruB inserted in a notch in the eyes, somewhat setaceous, 

 varying in length, first joint thick, second very small, third and 

 following long, cylindric and rather clavate. 

 Labrum very minute, hairy and dilated very much in front, cor- 

 diform. (1.) 



Mandibles short, triangular, slightly hooked. (2.) 

 Maxilla crustaceous at the base, with 2 coriaceous lobes, the 

 external one the largest, regularly ciliated. (3. a.) Palpi 2, the 

 first 3 joints small, the last thick, ovoid, compressed and trun- 

 cated. (3. b.) 



Mentum broad, convex at the sides, emarginate before. (4. a.) 

 Lip coriaceous, 2-lobed. (4.b.) Palpi 2, inserted before the 

 lip, short, 3-jointed, formed like the others. (4. c.) 

 Head sloped oj" before. Thorax without spines, nearly orbicular. Body 

 elongate, narrow, subcylindric. Elytra abbreviated, gaping at the 

 apex. Wings longer than abdomen, not concealed, but folded upon 

 and covering the abdomen when at rest. Anterior legs shortest, 

 posterior longest; thighs very much clavate. Tarsi 4-jointed, spongy 

 beneath, the third joint deeply divided, the last rather long, termi 

 noted by 2 claws. (5. a fore-leg.) 



M. MINOR Linn. Syst. Nat. 2. 641. 2. 



M. dimidiata Fab. Ent. Syst. 1. 1, pars 2. p. 357. 3. 



Black, shining, pubescent. Head and thorax minutely punc- 

 tured, the latter cylindric, oval-truncate, having 2 longitudinal 

 shining lines near the centre. Elytra dark chesnut, with an 

 oblique light spot upon each : the tips thicker and darker. Wings 

 fuscous. Antennae ferruginous. Legs bright chesnut, the thighs 

 clavate towards the joint and black. Tibise hairy. 

 In the Cabinet of the Author. 



The genus Necydalis of Latreille ought probably to be divided: 

 I have therefore adopted Fabricius*s generic name for the 



Fig. 3.— Facsimile of page from first edition. 



