H'ljlovy of 'T'lfula Tritici. 109 



allliough extremely minute. The four laft joints are black, very 

 diftjnft, and much larger than the reft (y). 



3. penetrans. I. nigro-aeneus; abdomine atrc-casrulefcente, compreflb ; 

 ano truncate, aculeo fub-exferto (r). 



Corpus nigro-aeneum, nitidum. Antenncx nigra;, clavata:, thorace 

 breviores, acut^e. Alex: avenix, hyalinx ; fuperiores lineola me- 

 dia marginis craflioris nigra demum in difcum oblique incur- 

 rente, et puniSto rotundo definenti. Abdomen atro-csrulefcens, 

 fub-compreffum, ano truncate, aculeo fub-exferto. 



Longitudo corporis infra lineam. 



Triiicum frequentat fimul cum praecedenti, glumas aculeo brevi 

 penetrans ovula pofiturus. Maris oculi majores, pallidiores, 

 approximati. 



The clava of the antennae of this little infe6l confifts of four 

 joints fet clofe together (/); the laft is the largeft, and acute. We 

 could not with certainty determine whether its footftalk was jointed 

 or not. 



I owe the drawings of the antennas of the three laft infefts to 

 the accurate eye and pencil of the Rev. Peter Lathbury, of Wood- 

 bridge, F. L. S. a moft ingenious and intelligent naturalift. Thefe 

 Ichneumons (/) may be placed after Ichneumon fecalis of Linnaeus, and 

 Tipula Tritici after Tipula Pini of De Geer. 



(j) Tab. iv. fig. 9. c. (r) Fig. 10. (/) Fig. 1 1, a. 



(/) The remarkable variations in the form of the antennx in thefe three fpecies, un- 

 doubtedly of one genus, fufficiently prove that GeofFroy was wrong in feparating his 

 genus Eulophus, &c. from Ichneumon merely on account of that circumftance. H'ft. ab. 

 dts Inf. ii. p. Jii. pi. XV. fig. 3. 



I ftiall 



