PTINIDiE. — DORCATOMA. 337 



robust, the six following extremely minute, and the three terminal 

 ones composing nearly half the entire length, stout, and in some 

 cases produced internally into slight rays. 



Sp. I. Dresdensis. Ovalis, convexa, nigra, antennis pedibusque ritfis, elytris 



margine bistriatis, oculis integris. (Long. corp. 1 — 1^ lin.) 

 Do. Dresdensis. Herbst.—Steph. Catal. 141. No. 1424. 



Oval, convex, black : thorax very convex, truncate anteriorly, with the deflexed 

 angles much produced, the sides nearly straight, the posterior margins sinuate- 

 rounded, with the angles obtuse: elytra finely punctured, with the apex 

 rounded ; the lateral margin of each with two parallel deeply punctate strife : 

 legs and antennae rufo-ferruginous : eyes entire. 



Very rare: it has been found in Suffolk, and near London. 

 " Taken in a window, by Mr. Kirby."— Marsham MSS. " Cob- 

 ham, 19th August, lSSO. 1 ' — A. Cooper, Esq. 



Sp. 2. Bovistfe. Suhglobosa, nigra, antennis pedibusque fusco-piceis, elytris 



margine substriatis, oculis sulco divisis. (Long. corp. 1^ lin.) 

 Do. Bovistae. Ent. Hefte.—Steph. Catal. 141. No. 1425. 



Subglobose, black, punctulate : thorax very convex, truncate and narrowed an- 

 teriorly, broad behind, the posterior margin sinuated : elytra broader at the 

 base than the thorax, dilated laterally, the sides with two nearly entire striae, 

 and a third about half the length at the base : legs and antennae pitchy- 

 fuscous : eyes divided by a deep sulcus nearly into two parts. 



Also very rare : I have hitherto seen but three specimens : one 

 of which was found near London, the others near " Windsor and 

 Spitchweek." — Dr. Leach. 



Sp. 3. rubens. Globosa, ferruginea, thorace postice rotundato, elytris margine 



tristriatis, oculis integris. (Long. corp. lg lin.) 

 Do. rubens. Ent. Hefte, ii. 103.pl. 3.f. 12. 



Globose, ferruginous : thorax very short, rounded behind, the posterior angles 

 obliterated, the disc slightly dusky: elytra broad, punctured, the lateral 

 margin with three entire longitudinal striae ; the humeral callus rather pro- 

 minent : antennae rather short, pale testaceous : legs ferruginous : eyes entire. 



My own example of this singular insect — which recedes from the 

 type of the genus — the only one which] I have seen, was found about 

 five years since " in an old tree, Regent's Park." — Mr. Lumlcy. 



