y/ 



247. 

 ATTAGENUS TRIFASCIATUS. 



Order Coleoptera. Fam. Dermestidse Lat.y Leach. 

 Type of the Genus Dermestes Pellio Linn. 

 Attagenus Lat., Leach, Sam. — Megatoma Herb. — Dermestes Linn., 

 Fab., Lat., Marsh. 



.Antenna inserted before the eyes, on each side the nasus, longer 

 than the head in the males 3 pilose, 11 -jointed, 1st and 2nd 

 joints robust, the former oval, the latter globose, the 3 following 

 slender, subquadrate, 6th, 7th and 8th, cup-shaped, the re- 

 mainder forming a very long robust and velvety club, the 9th 

 and 10th joints cup-shaped, the terminal one elongate-ovate in 

 the male (G), subovate in the female (6a). 



Labrum transverse, oval and pilose ; pubescent at the anterior 

 margin which is very thin (1). 



Mandibles small, subquadrate, externally pilose, the apex of one 

 crenated, forming 4 little teeth ; of the other simple ; internal 

 margin membranous below the middle (2). 

 Maxillae terminating in a very long and cleft lobe, thickly ciliated 

 with long curved hairs. Palpi longer than the maxillae, pilose, 

 4-jointedj basal joint small, 2nd large obovate truncate, 3rd 

 much shorter, obovate, 4th the longest, elongate-ovate, atte- 

 nuated to the apex (3). 



Mentnm large, subquadrate, anterior margin rounded. Labium 

 transverse, emarginate pubescent. Palpi remote, triarticulate, 

 basal joint small, 2nd obtrigonate, 3rd much larger elongate- 

 ovate (4). 

 Males smaller than the females. Head small nutant, with an Ocellus 

 on the crown. Eyes small globose and lateral. Nasus narrowed, 

 subquadrate. Thorax v;ith the posterior margin sinuated, the lobe 

 in the centre and the angles acute. Antepectus not produced over 

 the mouth. Scutellum minute. Elytra oval, scarcely broader than 

 the thorax. Wings ample. Legs short. Thighs and Tibiae com- 

 pressed, pubescent, the latter producing spiny bristles on the external 

 side; spurs very short. Tarsi 5 -jointed, basal joint small and ob- 

 scure, the 3 following subquadrate, in the anterior pair (5) ; basal 

 joint as long as the 3rd and 4th united in the others (of), terminal 

 joint long. Claws long slender and bent. 



Trifasciatus Oliv. — Fab. Ent. Syst. 1. pars 1. p. 228. n. 7. 



Pale black, shining, minutely punctured, and covered with de- 

 cumbent hairs. Antennae black. Thorax with the posterior 

 margin covered with yellowish shining hair, forming a black 

 square spot on the lobe. Elytra with 3 transverse sinuated fer- 

 ruginous bands, covered with ochreous pubescence, the 2 pos- 

 terior interrupted by the suture ; a small spot on each side at 

 the base and one at the apex ochreous also. Underside clothed 

 with yellow pubescence. Tibiae inclining to castaneous. Tarsi 

 and Claws entirely of that colour 3 the basal joint of the former 

 very small. 



In the Cabinet of the British Museum. 



