GLXCYPHANA. 121 



96. Glycyphana horsfieldi. 



Cetonia horsfieldi, Hope* Grays Zool. Miscell. 1831, p. 25 ; 



Burm., Handb. Ent. iii, 1842, p. 34G. 

 Cetonia marginicollis, G. ^- P., Monogr. CeL 1833, p. 251, pi. 47, 



fig. 6. 

 Var. Glyciphana biargentata, Thoinson* Typi Cetonid. 1878, p. 26. 



Opaque velvety-black above, with the head, legs and lower 

 surface shining and very minutely and thinly setose ; the pronotum 

 completely encircled with a deep red marginal band, the pygidium 

 and last ventral segment red and each elytron ornamented with a 

 glistening silvery or golden triangular patch placed just behind 

 the middle, with its base reaching the outer margin. The outer 

 edges of the hind coxae are of the same colour. 



The species is long and narrow in shape. The head is rugosely 

 punctured, with the chjpeus not long, a little narrowed towards 

 the front and deeply notched. The protliorax is strongly trans- 

 verse, moderately and evenly punctured, rather narrow in front, 

 where it is very sloping on each side of the middle, with the sides 

 strongly and evenly curved, the hind angles obsolete and the base 

 very slightly emarginate in the middle. The seutellum is long and 

 narrow. The elytra are deeply punctate-striate, with the sides 

 strongly sinuated close to the sliouiders and the sutural angles not 

 sharp. The ijyfjidium is rather flat, opaque, and finely striolated 

 transversely, the metastenium is smooth in the middle and coarsely 

 striolated at the sides, and the abdomen is coarsely and not closely 

 punctured. The front tibia is armed with three sharp teeth. 



d . The front tibiae are narrower in front with the teeth rather 

 farther apart, and the hind tarsi are a Httle longer than those of 

 the female. 



Length 13-14 mm. ; breadth 6-6-5 mm. 



Nepal ; Sikkim : Mungphu ; Bhutan : Maria Basti ; Burma : 

 Bhamo ; Assam : Silhet, Manipur ; Bengal : Chota Nagpur ; 

 Ceylon : Pundaluoya, Ivandy. 



Type in the British Museum ; that of biargentata in coll. 

 E. Oberthiir. 



6r. horsfieldi has been recorded as frequenting the flowers of 

 Hibiscus. 



This species seems to occur throughout a large part of the 

 Indian area and, as might be expected, is highly variable, the 

 varieties being to some extent localised. The typical form (from 

 the Himalayas) is small and narro\\-, with rather small triangular 

 golden elytral patches. The Ceylon form is generally rather 

 larger and broader, with the golden patches rather large. 

 A similar form occurs at Chota Nagpur. 



A striking variety, of which the exact locality is not known, has 

 the golden area extending almost to the base and apex of the elytra. 

 This may be called var. auridenta. 



In the var. biargentata the red markings have disappeared. Its 

 precise habitat is also uncertain. 



