some allied Genera of HymenojHerous Insects. 241 



Hyft'ia. Dr. Nees von Esenbeck has however regarded its cha- 

 racters merely as specific ones. 



Evan'ia, in its restricted state, comprises several species very 

 closely allied together, and the name of Evan'ia appeiidiga.stcr 

 having been indifferently applied to them, much confusion has 

 been thereby occasioned. Latreille endeavoured, but unsuccess- 

 fully, to rectify the error, which was accomplished by Illiger. 

 Mr. Curtis however, followed by Mr. Stephens, has again renewed 

 the confusion, by giving the fuscipcs of Illiger {appcnd'igaster, 

 Latr.) under the name of JIavicornis — (describing it as possessing 

 rufous antennas) — and by giving the tcev'/gata of Latreille as 

 identical with the Linnaean appcnd'igaster ; whilst the Marquis 

 Spinola has reversed the synonymy, by giving fusc'ipes and ap- 

 pendigaster as identical, and Levigata as distinct. Fabricius 

 gives, as the localities of Evan'ia appendigaster, Southern Europe, 

 Cape of Good Hope, and New Holland ; and Mr. Curtis adds 

 America, Jamaica, the Isle of France, Spain, and England, evi- 

 dently confusing the true laevigata and aj^pendlgaster, and proba- 

 bly several other species. 



Sp. 1 . Evan'm appendigaster, Linn. (Sphex a.). Illiger, N. ab Esen., 

 Curtis, Stephens, nee Latreille nee Spinola. 



In the Linnaean cabinet the specific ticket of E. appendigaster 

 is attached to a black insect, with the face neither punctured nor 

 striated ; the mesothorax nearly smooth, with only a very few 

 punctures scattered about the scutum, with an impressed oblique 

 line on each side, and a shorter straight one between it and the 

 base of the wings ; the peduncle of the abdomen is also slightly 

 contracted before the lip, the sides immediately in front of the 

 contraction being slightly flattened out. It is also smooth, being 

 neither punctured nor striated. 



I have carefully examined specimens from England, Germany, 

 the Island of Mauritius, Mozambique, and Brazil, amongst which 

 I cannot perceive any character to warrant their specific separation. 



Sp. 2. Evania Icevigata, Latreille, Olivier, Illiger. 



The Marquis Spinola gives Mexico, New Orleans, Brazil, the 

 Cape of Good Hope, Egypt, Greece, Sardinia, Coromandel, and 

 New Holland, as places from which he has received E. Icsvigata. 



Sp. 3. Evania fuscipes, Illiger. 



Syn. Ev. appendigaster, Latreille, Oliv., Jurine, Panzer. 

 Ev.Jlavicornis, Curtis, Stephens. 



