64 LUCANIDiE. 



The anteniife of the male are extremel}' slender. The 

 mandibles of the female are not flattened but compressed 

 laterally, very strongly curved and bifid at the end. Those 

 of the male arc flattened and in Avell-developed specimens 

 extremely long. The clyi)eal jjrocess of the female is more or 

 less semicircular, that of the male produced. The front tibia 

 of the female is sharply toothed laterally, that of the male 

 is not, or only microscoincally, toothed. Tlie tip in both 

 sexes is simple and not forked. 



This is a well-marked genus more nearly related to Dorms 

 than to Lucanus. It is characterized es])ccially by the 

 simply acuminate tip of the front tibia. The dissimilarity 

 between the two sexes both in size and form is remarkable. 

 Another generic name, Cydomynatinns, has been introduced 

 by Dr. Bidit r for C. strigiceps and related forms on account 

 of the oblique scratches at the sides of the head in well- 

 developed males, but, since these are absent in females and 

 small males, its adoption would obviously entail difficulty 

 which it is desirable to avoid. This applies equally to Cyclorn- 

 mafdhis of Nagel. 



Key to the Species of Cyclommatns (males). 



Houd not dark, scarcely metallic ; pronotum 



without dark lateral patch ■■strigiceps, Wostw., p. ()4. 



Head dark, strongly metallic ; pronotum 



with dark lateral patch albersi, Kraatz, p. (Ki. 



Key to the Species (females). 



Upper surface very closely punctured, not 



.shining strigiceps, Westw.. p. (U. 



Upper surface shining, not very closely 



punctured albersi, Kraatz, p. Ofi. 



IS. Cyclommatus strigiceps. (Plate V, fig. 11.) 



Lucaniis strigicejis Westw., Cabinet of Oriental Entomology, 1848, 



p. IS, pi. 8, fig. 5. 

 Lucanus multidentatus Westw.,* op. cit. p. 17, pi. 8, fig. 3. 



Orange-yellow or rusty-red, with the front and hind margins 

 of the ]ironotum, the scutelhun, inner and outer edges of the 

 elytra, the antcnnse and tarsi black or very dark. The 

 pronotum may also have a dark longitudinal median stripe. 

 Parts of the upper and lower surfaces of the male and th(> 

 sides of the metasternum of the female slightly suffused with 

 a greenish metalhc lustre. 



$. Rather reddish in colour with the sides and middle line 

 of the ])ronotum darker. The shoulders of the elytra are 

 also dark and tliere may be a vague indication of a longitudinal 

 dark line along the middle of each. 



Tlie head is coarsely and rugosely ])unctured, with a ])air of 

 / 



