INSECTA HYMENOPTERA. 171 



The bifurcation of the " metasternum," noticed by Spinola, was found by the 

 author in all true jEV##/<ewith perfect wing-cells. HyptiassaA.Brachygaster,Qn^ie 

 other hand, present a simple projection. Between E. esppendiffasteranA Icevryata 

 a difference also exists in the form of the marginal cells ; and to the latter 

 species belong E. appendigaster, Blanch., as $ , and E. Desjardinii, Blanch., 

 as $ . Lastly, the author describes two other new species, E. Poeyi, from 

 Cuba, and E. Sennllei, from St. Domingo. Both belong to the subgeuus 

 Ili/l>tia, which the author strangely terms " Hyptiam" probably because 

 Illiger incidentally applies the name in the accusative. (Fu. Etr. ii. p. 82 ; 

 ..." genus . . . , quod Hyptiam voco.") The opinion that E. thoracica, 

 Blanch., is identical with E. rufpes, F., as expressed by the author (1. c.), is 

 afterwards retracted by him. (Ilev. Zool., 1844, p. 39.) 



CHALCIDITKS. The descriptions of the Chalcidites collected by Darwin 

 have been continued by Walker in the 'Ann. of Nat. Hist.' (vol. xi.) From Con- 

 ception there are eight species (p. 30), viz. oneeaciiotLampro/atus, Gastran- 

 rixl ,-n.s, Pteromalus, Derostenus, Closterocerus, Bellerus, Halid. (a new genus 

 belonging to the Eulophidse, with 12-jointed?, slender, moniliform, verticil- 

 late-pilose antenna;, the last three joints of which form a spindle-shaped 

 club), and two species of Tetrastichus, Halid. (&c.) From Lima (p. 115) we 

 have one species each oiDieyclus, Paehylarthrus, Pteromalus, Entedon. The last 

 is indicated as a new genus Horismenus, Halid., without, however, its cha- 

 racters being distinctly given. From the Island of Chonos (p. 184) are one 

 species each of Lamprotatus, Pteromalus?, Entedon, Closterocerus. From 

 Coquimbo (p. 185), 2 Lamprotatus, 1 Gastrandstrus, 1 Platyterma or Ptero- 

 ii/t/h'x, 1 Tetrastichus. Li the twelfth volume (p. 45), two more new species 

 are added: Tlioracantha Latreillei, Guer., from Brazil; and a Micromelus, 

 from Mount Wellington. 



The Chalcidites collected by Guilding, in St. Vincent's Isle, have 

 been described by the same (Ann. Nat. Hist, xii, p. 46), viz. one species each 

 of Decatoma, Pteromalus, Lelaps, Idarnes, Encyrtus, Euplectrus, Papliagus. 

 The three new genera, Lelaps, Halid., Mantes, and Papliagus are more par- 

 ticularly described, but the author has not expressed himself as to their 

 systematic position. 



The same author has also communicated the elaboration of the 

 Chalcidites collected byE. Doubleday and R, Forster, in East Florida, in the 

 'Ann. de la Soc. Eut. de Fr.' (2 ser. i, p. 145) : 1 Smiera, 2 Hockeria, 1 Or- 

 -,,11/,-nx, 2 Callimone, 5 Eurytoma, 1 Micromelus, 4 Lamprotatus, \Pacliyneuron, 

 2 Norbanus, (a new, but no further described genus), 1 Metopon. 



Lastly, the same author has given descriptions of various new species 

 (Ann. Nat. Hist, xii, p. 103) : Isosoma hordei, Harr. ; parasitic in Cecidohii/i,/, 

 in North America; I. Laothoe, from Edinburgh; Perilampus Entellus, in 

 Ohio; Callimone Aea, from New York; Trichogramma Carina, from the Forest 

 of Fontainebleau. 



