140 THE entomologist's RECORD. 



on August 27th, 1910 {Ent. Rcc, xxiii., p. 35), and of which I have 

 received a female taken by Signer F. Cremona at the Cedars of 

 Lebanon (6,400 feet) at the beginning of August, proves to be a form 

 of Henprria serratulae. I have had no acquaintance with H. fierratnlae 

 in Europe, and so cannot say whether these Syrian specimens are 

 close to the ordinary Central and East European form. They seem 

 to ine to be nearer to the fine H. aerratidae figured in Lep. Coiiip., 

 vol. iv., plate iv., by M. Culot, from specimens in M. Ch. Oberthiir's 

 collection. Will readers of the Knt. llec. note that all my records of 

 H. alveiis at Ain Zahalta and elsewhere in Syria refer to this form of 

 H. serratiilae. 



Finally may I note that Dr. Chapman informs me that an examin- 

 ation of the genitalia of a Uesperia, taken by me at the Cedars of 

 Lebanon, in company with Miisehampia proto, on August 28th, 1910, 

 proves it to be H. annnricanKx. The specimen resembles on the 

 upperside M. Charles Oberthiir's figure of var. fabressei (Lep. Comp., 

 IV., pi. Ivii., fig. 519), being an " enlarged and exaggerated " form of 

 H. ariiioricanm. The underside, however, does not show the tendency 

 to rust colour remarked by M. Oberthiir in Southern and littoral 

 specimens, but is of the usual marbled greenish-olive tint with un- 

 usually well developed Avhite bands. 



Cteniopus sulphureus, L- A Study in Masculine Mutability. 



By W. E. SHAEP, F.E.S. 



That the male sex in insects is generally more susceptible to 

 variation than the female is well known to most Entomologists, and a 

 striking instance of this principle as operative in Nature has recently 

 been brought to my notice by Mr. Donisthorpe in the case of the 

 Hetei'omerous beetle Cteniopim HulpJiiireus, L., an insect often 

 abundant in localities near the sea and occasionally in more inland 

 districts, and widely distributed throughout the country. 



Of 47 specimens of this beetle, which Mr. Donisthorpe had kindly 

 allowed me to examine from his own and the "Bates" collection, I 

 find 21 are $ and 26 J examples. 



In the former hardly any variation in colour can be detected. They 

 are generally of the dull testaceous yellow which is the normal 

 coloration of the species — some \ery slightly darker, in which case 

 thorax and elytra are concolorous, some slightly lighter, in which the 

 thorax appears rather more ferruginous than the elytra, the palpi 

 brown or testaceous with the last joint black. The sculpture of the 

 thorax, however, varies slightly, especially in the strength of the 

 lateral basal impression. Seidlitz indeed dift'erentiates under the 

 varietal name (/ilnts the form — " prothorax foveis oblongis basilibus- 

 baud argute impressis," but the distinction seems hardly sufficiently 

 constant or important to justify its recognition as a varietal character. 



The males, however, were very difierent, out of the 26 examples 

 examined only 4 were completely normal. The remainder may be 

 arranged under the following varietal names. 



Palpi and antenna? quite black, head dark. 



1. Thorax and elytra normal in coloration. <? palpalis, Seid. 



2. Thorax and head dark brown or black. 



(a) Elytra normal. J snliihitratits, Gmel. {hicolor, F.) 



(/>) Elytra grey brown. J vnirinus, Hbst.. 



