British Species of the Genus Gyrophcsna. 249 



Sp.? 6* . 



In Dr. Power's collection is a single S specimen of a Gyro- 

 phcena, which is perhaps new and undescribed ; its chief characters 

 are : — oblong ; testaceous ; head, posterior outer angles of elytra, 

 and 5th abdominal segment, pitchy : head glossy (scarcely aluta- 

 ceous), gently convex, and with largish scattered punctures, ex- 

 cepting along the mesial line : thorax moderately transverse, the 

 anterior angles obtuse, the posterior rounded, the sides gently 

 rounded, narrowly margined behind ; the surface with fine, but 

 rather widely scattered, punctures throughout ; the two discoidal 

 rows of punctures obsolete, being represented only by two in 

 each row, and these on the hinder part of the thorax : elytra, 

 taken together, considerably broader than long ; and with the 

 whole surface very finely and very thickly punctured, and pretty 

 densely pubescent. 



Male with four short ridges on the 6th abdominal segment, and 

 the 7th segment furnished with four longish, slender processes, all 

 terminating in the same transverse line ; the middle pair sub- 

 approximated ; and immediately above these, on the upper surface 

 of the segment, are two small, almost tuberculiform processes — 

 these (unlike the other processes) do not project beyond the apex 

 of the segment. 



In the male characters, it will be seen, this species approaches 

 very nearly to G.fasciata (= G.congrua, Er.) and G. gentilis, but 

 it differs from both in having the thorax furnished with minute 

 scattered punctures throughout, and in the punctures of the dorsal 

 rows being obsolete. In having the antennae entirely pale, and 

 the elytra thickly and finely punctured, it agrees with G. gentilis, 

 but it is of smaller size (being equal in bulk to G.fasciata) and 

 wants the transverse depression which is seen near the posterior 

 margin of the tliorax of G. gentilis. In Dr. Power's insect we 

 perceive the usual impressed line immediately witliin the posterior 

 margin of the thorax (placed, however, nearer to the margin itself 

 than in G. gentilis), and immediately within this line the thorax is 

 convex, whilst in G. gentilis there is a shallow depression border- 

 ing the impressed line. The abdomen is less broadly margined at 

 the sides, moreover, than in G. gentilis. It remains to be seen 

 whether these distinctions are specific. 



7. G. lucidula, Erichs. Kaf. Mark Brand. 369, 5. 



Gen. et Spe. Staph, 187, 10. 



Kraatz, Ins. Deutschl. Staphyl. p. 359, sp. 8. 



Black, the legs and basal joints of the antennae tesiaceoud, the 



