] 12 Mr. W. S. Dallas's Note on the 



outer margin about the middle. Body beneath and legs yellow ; 

 the apex, and sometimes the whole of the abdomen, is reddish. 

 Antennae yellowish, or greenish at the base, with the two apical 

 joints brown. Length 6 lines. 



In the male, the anal plate is large and distinctly denticulated 

 on the posterior margin, where it also bears two strong brushes 

 of hairs ; in the female the basal plates are transverse, forming an 

 irregular oval, and much larger than the apical ; the intermediate 

 plates are nearly as large as the apical and reach their posterior 

 margin ; the central plate is larger than in the other^species, and 

 appears to be divided longitudinally. 



Amyot (Ann. Soc. Ent. Fr.) refers the Cimexagathinus, Fab. to 

 this species, but it is evident both from the description given by 

 Fabricius in the " Entomologia Systematica" and the figures quoted 

 by him in the " Systema Ryngotorum," that the insect described is 

 identical with Cimex griseus, Linn. 



A specimen of this insect stands in the Linnaean collection with 

 the name Cimex inter stinctus attached to it. I am inclined to 

 think, however, that it has been placed there by Linnaeus in error, 

 probably some time after the publication of his description of that 

 insect, for it is impossible to make it agree in any respect with 

 the characters given in the " Fauna Suecica." I have referred the 

 Cimex inter stinctus, as a synonym, to the Cimex griseus, with which 

 Linnaeus says it agrees in size, appearance and colour, differing 

 only, in fact, in having the upper surface of the abdomen red, with 

 the base black, instead of entirely black. 



b. Basal joint of the antennae not passing the apex of the head. 



Sp. 3. Acanthosoma Uturatum. 

 Cimex lituratus, Fab. E. S. iv. 114, 134 (1794), and S. R. 170, 

 84 (1803); Wolff, Ic. Cim. 14, tab. 2, fig. 14 (1800); Panz. 

 F. G. 40, 19 ; Fall. Mon. Cim. 44, 4 (1807), and Hem. Suec. 

 24, 4(1829). 

 Acanthosoma picta, Newman, Ent. Mag. i. 287 (1833). 

 Acanthosoma Uturatum, H. Schaff. Nom. Ent. 57 and 94 (1835) ; 



Kolen. Mel. Ent. iv. 60, 188 (1846). 

 Acanthosoma clypeata, Burm. Handb. ii. 361, 7 (1835). 

 Saranus, Amyot, Ann. Soc. Ent. Fr. 2me. ser. iii. 458, 75 



(1845). 

 Above pale green, thickly and rather finely punctured, with a 

 broad red band along the inner and apical margins of the coria- 

 ceous portion of the elytra, and sometimes a reddish band across 

 the posterior portion of the thorax. The red portion of the 



