r 46 



ENTOMOLOGY. 



A/iis cyenea. Kirby. 

 Inhabits Euiope. 



Subdivision 2. 



Labrum longer than broad, inclined perpendicularly ; 

 porrect beneath the mandibles, elongate, quadrate. Man- 

 dibles strong; porrected, with the apex bidentate, in 

 some; trigonate,and often multidentate, in others. 



* Labial palpi with the three first joints continuous, 

 the fourth inserted under the external apex of the 

 third. 



Genus DCLII. Roimiitf.s. Spinola, Latr. 



Mandibles triangular. Maxillary palpi six-jointed. 



S/i. 1. Quinc/ucsfiiiwua. 



Jio/ihUcs (/uini/ius/unosa. Spinola, Latr. 



Genus DCLIII. Chei.osto.ma. Latr. 



Ans. Linn. Villers, Kirby. (** c. 2. y). 



Hyi.jeus. Fabr. 



Antiiophora. Illiger, Fabr. 



Anthiuilm. Panzer. 



Trvciiusa. Jurine. 



Mandittles (of the females) arcuated, their apex biden- 

 tate or furcate, porrect, internally hairy. Maxillary 

 palpi three-jointed. 



The bodies of the insects composing this genus are 

 very long, slender, and cylindiic. The belly of the male, 

 near the anus, is concave, and covered with down ; and 

 at its base is a horn or protuberance. When asleep, they 

 roll themselves up like an armadillo, the horn or protu- 

 berance fitting into the anal cavity. They nidificate in 

 posts and rails. The males usually repose in the centre 

 of a flower. 



•S/,\ 1 . Florisomnis. 



Hijlaus Jlorisomnis. Fabr. Panzer. 



A jns Jlorisomnis. Linn. 



Chclostoma Jlorisomnis. Latr. 



Inhabits Euiope. The female is A/iis maxillosa of 

 Linne and Kirby ; Hyleus maxillosus of Fabricius. 



** Labial palpi with the third joint inserted obliquely 

 on the external side of the second, near to the apex. 



Genus DCLIV. IIeriades. Spinola, Latr. 



Apis. Linn. Kirby. (** c. 2. -/). 



Anthophora. Fabr. Illiger, Klug. 



Anthidium. Panzer. 



Trachusa. Jurine. 



Labial palpi with the second joint longer than the first. 

 Body very long, cylindric. 



This genus, in habit and in economy, resembles Chc- 

 lostoma ; the males are often taken asleep in flowers; 

 their abdomen is then doubled, so that the tubercle with 

 which its base is armed fits into the cavity near the anus. 



S/i. 1. Truncorum. 



IIeriades truncorum. Spinola, Latr. 



Anthofihora truncorum. Fabr. Illiger. 



Inhabits Europe. 



Genus DCLV. Stems. Panzer. 



Apis. Kirby. (** c. 1/3). 



Anthophoka. Illiger. 



Megachile. Latr. VValck. 



Trachusa. Jurine. 



Gyrodroma. Klug. 



Labial palpi with the second joint not longer than the 

 first. Maxillary palpi two-jointed ; the first joint longest. 

 Mandibles strong. Abdomen convex above, smooth be- 

 low, and scarcely hirsate. 



8fi. 1. Atcrrima. 



iStelis aterrima. Panzer, Latreille; 



Inhabits Europe. 



Genus DCLVI. Anthidium. Fabr. Panzer, Klug 

 Latreille. 



Apis. Linn. Geoff. Schaeffcr, Kirby. (*» c. 2. /3.) 



Anthophora. Illiger. 



Megachii.e. Walckenaer, Spinola. 



Trachusa. Juiine. 



Labial palpi with their second joint not longer than the 

 first. Maxillary palpi One-jointed. Abdomen of the fe- 

 males, below, very hairy; above, convex, incurved ; the 

 base broadly truncate. Mandibles broad, multidentate. 



The anus of the males of this genus is always aimed 

 with spines. 



S/i. 1. Manicatum. 



Anthidium manicatum. Panzer, Latreille. 



A/iis manicata. Kirby, Linn. 



Inhabits Euiope. 



The following interesting account of the economy of 

 Anthidium manicatum, is extracted from Kirby's Mono- 

 grafihia. " Linnaeus," says he, " observes, upon this bee, 

 in arboribus cavis nidos construit ; but he takes no notice 

 of the materials of winch the nidi were made. This de- 

 ficiency has been supplied by Mr James Trimmer and 

 Sir Thomas Cullum. The former of these gentlemen 

 some time since informed me, that having had frequent 

 opportunities of watching the motions of Anthidium mani- 

 catum, and finding that the female constantly attended 

 stachys gcrmanica, agroslcmma coronaria, and other wool- 

 ly leaved plants which grew in his garden, he was curi- 

 ous to know the reason of this preference. It was not 

 long before his curiosity was gratified ; and he discover- 

 ed that it was the wool which covers the surface of the 

 leaves of these plants, that was their attraction ; for he 

 observed the little animal, with her strong " mandibular," 

 scraping it off with great industry and perseverance ; 

 and while these were thus employed, rolling it up, with 

 her fore legs, into a little ball ; making, all the time, a 

 considerable hum. The use to which she applied the 

 material thus collected, Mr Trimmer could never disco- 

 ver; we only conjectured that she employed it in the 

 construction of her nest. Our conjecture is almost turn- 

 ed into certainty by the following account given by my 

 ingenious friend Sir Thomas Cullum, to Mr Marsham, 

 of a nest which he found made of similar materials. He 

 thus expresses himself, in a letter to that gentleman. " I 

 observed, in a lock of one of my garden gates, that the 

 key did not turn easily round ; and upon looking into the 

 key-hole, I saw something white. 1 bad the lock taken 

 off, and it was completely full of a downy substance, con- 

 taining the pupa of some bee, I conclude. Upon exa- 

 mining the downy substance, I am certain it is the fine 

 pappus or down from the Anemone sylvestris, of which I 

 had two plants in my garden. I have preserved the 

 whole as I found it ; but the bee has not yet made its ap- 

 pearance in its perfect state. I shall watch their progress, 

 and send them to you or to Mr Kirby." This letter is 

 dated October 10, 1800. Sir Thomas has since had the 

 goodness to send me the nidus ; the pupae are still qui- 

 escent, (April 2. 1801), and will probably be not disclo- 

 sed till after Midsummer. Upon comparing it with the 

 anecdote which I have just related of this bee, I cannot 

 help being of opinion, that it is the nidus of that species. 

 It is with some hesitation that I venture to differ from so 

 accurate an observer as Sir Thomas Cullum ; but it ap- 

 pears to me that the wool which envelopes the nest and 

 the cells, is scraped from the leaves of one of the first 

 mentioned plants. I gathered some leaves of Agros* 



