438 Mr. Claude Morley on Tryplionides schizodonti. 



Bassus peronatus, Marshall. 



E. M. M., xii (1876), p. 194, % 



Shining, punctulate, black. Head, transverse and broader than 

 thorax ; face deplanate and not centrally canaliculate. Antennas 

 as long as the body, infuscate, testaceous beneath. Thorax nitidu- 

 lous; mesosternum fulvous ; metathorax rugose with distinct area?, 

 areola elevated and acutely margined. Scutellum convex, testaceous 

 with its centre and two elongate lateral marks infuscate. Abdomen 

 shining, with all the segments narrowly white apically, and not 

 transversely impressed ; basal segment broad, depressed, and sub- 

 contracted in front, with carina? extending a little beyond its centre. 

 Legs fulvous, hind ones stout ; hind femora infuscate with their 

 tibiae, except basally, and tarsi black. Wings with tegulae white ; 

 areolet wanting ; nervellus intercepted far below the centre. 



Length, 6 mm. 



This species is said to be closely related to B. pedor- 

 atorius, differing therefrom in its immaculate pleura? and 

 metathoracic costse. I very strongly suspect, however, 

 that it represents the unknown $ of B. strigator, Fab. 



England ; bred from Nematus cadderensis (cf. E. M. M., 

 xii, p. 127). 



I have quite failed to discover where Bassus pipizx, 

 Gir.j is described ; it is mentioned as parasitic upon Pipiza 

 nodiluca in one of that author's posthumous works (cf. 

 Laboulbene in Ann. Soc. Fr., 1877, p. 408). Dr. Giraud's 

 memoirs are numerous, extending from 1854 to 1871 

 according to Mocsary, but this species is not mentioned in 

 the Annales from 1852 (when he joined the Society) to 

 1872, nor do I find it in the Zoological Record ; it may 

 appear in one of his contributions to the Verh. Wien. 

 z. b. Ver., but it is more probably a MS. name (cf. Mar- 

 shall, Bracon. d'Europ. i, 199). 



January 3rd, 1906. 



