24 



Tritici, a new species of minute Tipulidae is recorded, together with that of its para- 

 site Ichneumon Tipute, a species belonging to Latreille's genus Platygaster. 



6. 'A Continuation of the History of Tipula Tritici,' in a letter to Thomas 



Marsham, Esq., Treas. Linn. Soc. Linn. Trans, v. pp. 96 — 111. Head 

 February 5th, 1799. 



The economy and transformations of Cecidomyia Tritici are here further elucidated 

 (although the male still remained unobserved), and descriptions are added of three 

 parasites which keep it in check, namely, 1. Ichneumon inserens (Encyrtus sp P) 

 2. I. Tipula (Platygaster Tipulce), and 3. I. penetrans (Macroglenes penetrans, Westw. 

 fam. Chalcididce). 



7. ' Observations upon certain Fungi which are parasites of the Wheat.' Linn. 



Trans, v. p. 1 12. Read February 5th, 1799. 



8. ' Some Observations upon Insects that prey upon Timber, with a short His- 



tory of the Cerambyx violaceus of Linnaeus.' Linn. Trans, v. pp. 246 — 

 260. Read Nov. 5th, 1799. 



The introductory part of this paper contains a summary of the habits of the xylo- 

 phagous insects belonging to the different orders of insects (subsequently dilated into 

 one of the most interesting chapters of the ' Introduction to Entomology ' ), which is 

 followed by a more precise detail of the economy of the Cerambyx (Callidium) viola- 

 ceus, Linn., observed by Mr. James Trimmer of Old Brentford, in fir timber of 

 English growth. Figures of the insect in its different states, and of the method of its 

 attack upon timber are added. 



9. ' Monographia Apum Anglia? ; or an attempt to divide into the natural genera 



and families such species of the Linnaean genus Apis as have been disco- 

 vered in England, with descriptions and observations. To which are pre- 

 fixed some introductory remarks upon the class Hymenoptera, and a Sy- 

 noptical Table of the nomenclature of the external parts of these insects, 

 with plates.' 2 vols. 8vo., pp. xxii, 258 and 38S. Ipswich, 1802. 



The title page sufficiently explains the object of this treatise on the British species 

 of bees, which may justly be said to be the most perfect monograph hitherto published 

 on any extensive group of insects. The introductory portion of the first volume, com- 

 prises a general survey of the views entertained by preceding authors concerning these 

 insects, both as regards their structure and classification, and a description of all the 

 different parts of the body of the perfect insect. This is followed by a very elaborate 

 account of the various " genera and families, or orders," or as we are now accustomed 

 to term them, families, sub-families and genera, their structure and habits, with a 

 description of the fourteen plates of outlines, etched by Mr. Kirby himself, illustrating 

 the sectional characters of these groups (the last of which contains figures of the 

 Pediculus Melittas and Stylops Melittae). The second volume is occupied with the 

 description of the species of bees, namely, 1 11 Melittae (Andrenidas), and 110 Apides 

 (Apidee), and is illustrated with four plates of the perfect insects, containing fifty co- 

 loured figures. 



It is very worthy of remark that precisely at the period when this work was 

 published, Latreille was engaged upon a treatise upon the same insects, which ap- 



