OF NEW ENGLAND. 133 



cal ; a single slender tibial spur ; tarsi consisting of a single 

 clavate joint equalling the tibia in length, much swollen at 

 the tip, where no claws can be discovered ; the hind tarsi 

 are longer, very slender, two jointed, the terminal one being 

 bulbous. The pair of terminal stylets inserted in the four- 

 teenth and terminal joint of the body are a little more than 

 one half the length of the body. Tho whole body, espe- 

 cially the abdomen is partially covered with long setose 

 scales, which project from the side of each ring. In color 

 the body is pale grayish. 



In their movements these infinitesimal larvae were very 

 active, as they scrambled over the surface of the body of 

 the parent or of the glass slide, holding their caudal setaa 

 nearlv erect. 



Notes on a new species of Anthophorabia parasitic on the 



Leaf-cutting Bee, and a new genus of Myrmarides 



probably parasitic on the former. 



In Westwood's " Introduction to the Modern Classifica- 

 tion of Insects," we find the following notices of chalcid 

 parasites on wild bees and wasps. " Pteromalus apum 

 is parasitic gregariously in the nest of the mason bee. A 

 brood of Encyrtus varicornis was obtained by Esenbeck 

 from a cell of Eumenes coarctata. Reaumur has described 

 and figured (Mem. vi. pi. 20, fig. 2, and pi. 21, fig. 3,) a 

 species of Chalcis, which is parasitic in the nests of the 

 American wasp (Epipone nidulans) and which he regard- 

 ed as the female of that wasp." Westwood also mentions 

 that Monodontomerus lives in the nests of Osmia, the ma- 

 son bee 5 and on the authority of Audouin states that the 

 same genus is also " parasitic in the provisioned nests of 

 Odynerus, Anthophora and Osmia. The male has most 

 singular antennas, and minute rudiments of wings, so that 

 it does not quit the cell.' 7 



Newport* has given us many new details of the history 

 of the wild bee parasites. He states that the larvae of 

 Monodontomerus are flat, very hairy, and spin silken co- 



* On the Anatomy and Development of certain Chalcidce and Ichneu- 

 monidao. Trans. Linn. Soc. Vol. 21, 1855. 



