372 CLASS VITl. 



mostly gold-green or purple-red, sometimes blue, just as the head 

 and thorax usually are), and which have caused them to be compared 

 with humming-birds. 



The first joint of the antennae is elongate ; at the second joint 

 they are bent geniculately. The females lay their eggs in the nests 

 of other hymenoptera, whose larvae are eaten by theirs. These 

 insects are protected from the sting of bees and other hymenoptera, 

 their natural enemies, by their hard integument ; and besides this, 

 they have the power of bending the abdomen under towards the 

 thorax, and so, like the Armadillos amongst the mammalia, of 

 contracting themselves into a ball. They form the transition 

 between the first and second divisions, and are joined to the first, 

 that of the aculeata, by HARTIG, because they are without the part 

 which he considers to be a second trochanter. 



Comp. on this family LEPELETIER, Mem. sur quelques espdces nouv. d'in- 

 sectes de la section des Hymenopteres porte-tuyaux, av. fig. col., Ann. du Mas. 

 vn. 1806, pp. 115 129. 



The borer, improperly named a sting, is described and figured by DE 

 GEER, Mem. p. I' Hist. d. Ins. n. pp. 834836, PI. 28, f. 1921, PI. 29, 

 figs, i, 2. 



Parnopes LATE. Maxillas and labium very long, linear, form- 

 ing a kind of promuscis inflected beneath the thorax. Maxillary 

 and labial palps very short, biarticulate. 



Sp. Pamopes carnea LATR., DUMER. Cons. gen. s. I. Ins. PI. 31, fig. 7 ; AH 

 RENS (GERMAR) Faun. Ins. Eur. Fasc. II. Tab. 10. This species has it. 

 habitat in the south of Europe, and lays its eggs in the nest of Bembex ros 

 trata; see LATREILLE, Ann. du Mus. d'Hist. nat. xiv. p. 415. 



Chrysis L. Labinm not in form of a promuscis. Maxillary 

 palps with five joints, labial triarticulate. 



a) Palps equal. 



Sub-genus Stilbum SPINOLA, (Stilbum and Euchrceus LATR.) 

 6) Maxillary palps longer than labial. 



Sub-genera : Cleptes LATR., Chrysis SPINOLA, Elampus SPINOU 

 Hedychrum LATR. 



Sp. Chrysis ignita L., FRISCH, Ins. ix. Tab. x. fig. i, SULZER, Die Kennz. 

 Ins. Tab. xix. fig. 121, Guv. R. Ani. ed. ill., Ins. PI. 116, fig. 6, glittering 

 with thorax green, and abdomen golden from above of a fire-red plaj 

 and having at its extremity four denticles. Chrysis cycmea L., PANXKI 

 Deutschl. Ins. Heft 51. Tab. 10, <fec. 



