106 Rev, T. A. Marshall's monograph of 



stouter than those of the <y . Wings hyaline, stigma hlack ; 

 according to Ratzebui'g, the stigma of the $ is testaceous, but this 

 must have been some accidental peculiarity, perhaps in an im- 

 mature specimen. There are other trifling discrepancies in the 

 descriptions of authors, but the species is distinct from all others 

 by the length of the terebra in the $ . The ^ appears not to differ 

 fi-om that of the following species, and Wesmael remarks that had 

 it not been for the difference of the terebra, he should have united 

 his floricola with caudatus. 



Reared from Orchestes quereiis, L., which mines in oak- 

 leaves, by Nordlinger at Grand Jouan, in Brittany. On 

 June 6th, at Neustadt Eberswalde, Ratzeburg found the 

 cocoons in the blisters formed upon oak-leaves by that 

 Curculio. These cocoons are brown, 1 line long, and 

 semitransparent, resembling in miniature those of the 

 Tachinidce, minus the spiracles. A similar cocoon was 

 found by Reissig in oak-leaves rolled up by the larva of 

 Halias quercana, Hiib. Curtis bred several females from 

 the stems of barley containing the pupse of Oscinis 

 rastator, Cur. S. v. Vollenhoven assigns a different 

 origin to this insect, regarding it as a parasite of Tortrix 

 hypericana, SnelL, perhaps erroneously. 



2. Sigalphus jioricola, Wesm. 



Triaspis ohsmrellus, Hal., Ent. Mag., iii., 126, 3" ? ; 



Thoms., Opusc. Ent., vi., 1874, p. 562 (nee Nees). 



Sigalphus floricola, Wesm., Nouv. Mem. Ac. Brux., 



1835, 'p. 208, c? ? . 

 Very like the preceding. Legs black, fore femora at the apex, 

 fore tibiae, middle and hind tibiae at the base, rufescent. Antennae 

 2 19 — 21-, <? 20 — 22-jointed. Terebra ? not longer than the 

 abdomen. Length, f ; wings, 1^ lin. 



The length of the terebra is the only tangible difference 

 between this and caudatus ; the males seem absolutely 

 identical. The average size of floricola is somewhat 

 less, and the antennae appear a trifle shorter. In 

 adjusting the synonymy I have been guided by the 

 following considerations: — 1. Haliday and Wesmael 

 certainly had in view the same species, being the one 

 that so closely resembles caudatus. 2. Both writers are 

 of well-known accuracy, yet here we find them at 

 variance, Haliday considering the species to be ohscurellus, 

 Nees, and Wesmael regarding it as undescribed. The 



