British Braronid/e. 271 



or tlu-ice the length of the abdomen. ^ ? . Length, ,? 2, $ 3 ; 

 wings, 4 — 5^ lin. 



Described from one male and two females. The male 

 differs in having the 2d segment entirely black above ; 

 the antennae are 27-jointed. Those of the females are 

 29- and 30-jointed respectively. In one the 2d segment 

 is margined with l^lack posteriorly. Belly pale at the 

 base. Second cubital areolet triangular, petiolated. 

 The species is next in size to Clausthalianns. 



I captured the 3 at Milford Haven, and one ? near 

 St. Albans ; the other is of unknown origin. Nees v. 

 Esenbeck records a pair taken by him at Sickershausen. 



2. Microdus Clausthalianus, Eatz. 

 Microdus ClaustJialianus, Eatz., Ichn. d. Forst., i., 58, 



pi. vii., f. 12, ? ; Eeinh., Berl. ent. Zeit., 1867, 



p. 354, 3 ? . 

 Black ; mandibles, palpi, and legs, riifo-testaceous, including the 

 trochanters ; coxae black, the anterior sometimes pitchy beneath ; 

 hind tibiae at the tips, and their tarsi, fuscous. Wings infumated, 

 squamulae black, nerviu'es and stigma fuscous. Antennae <? J 35- 

 jointed, rather longer than the bodj'. Mesopleuras smooth and 

 shining, rugulose only in fi'ont, and beneath the crenulate fovea. 

 Metathorax reticulato-ragulose, with vestiges of the usual carinas ; 

 evenly convex, and not, as in tiomidulus, gibbous behind the middle. 

 Segment 1 striolated ; 2 with a medial, transverse, arcuate, im- 

 pressed line, smooth and shining, Ulve the remaining segments. 

 Terebra as long as the body ; its valves setaceous. ^ $ . Length, 

 3 ; wings, 5| lin. 



Three males and five females are in Fitch's collection. 

 The species looks like a large tumidalus; but the squamulae 

 are black instead of rufous, the palpi wholly pale, the 

 orbits without a rufous spot ; the antennae have a few 

 more joints, and the metathorax is differently shaped ; 

 but the last character is difficult to seize, Eatzeburg 

 describes it as 3 lines long, w^hich is correct, but his fig. 

 represents it 2|- lines, or nearly the size of tnmididus, 

 raising a doubt whether the real Clausthalianns has been 

 used for the illustration. The rufous orbits of tninidnlns 

 are not a constant character, and probably the size of 

 this species and the colour of the squamuhu are the only 

 real means of discrimination. 



Two males and three females were bred singly from 



