108 Eev. T. A. Marshall's monograph of 



4. Sigalphus ohscurellus, Nees. (PL IV., fig. 5). 



Sigalphus ohscurellus, Nees, Mag. Ges. Berl., 1816, 

 p. 252 ; Mon., i., 270, <? ? (nee Hal., Thorns.). 



Less intensely black than caudatus ; legs piceous, fore tibiae 

 entirely, and the others at the base more or less, rufescent or 

 testaceous ; antennae ? shorter than the body, 22 — 23-jomted, 

 those of the S' somewhat longer than the body, 23 — 25-jointed ; 

 mouth entirely black ; carapace tripartite, segments 1 — 3 rimulose ; 

 segment 3 of the 3' sometimes more faintly, but hardly shining. 

 Stigma black. Terebra 5 somewhat decurved at the apex, as long 

 as the abdomen, or sometimes a little shorter. Length, 1 — 1:^; 

 wings, 2| — 3 hn. 



This species has a different habit from caudatus and 

 floricola, more easily seen than described. It is of a 

 duller black, broader in proportion, if not longer ; the 

 abdomen is more convex, the rimulosity of the 3d seg- 

 ment coarser and more constant ; even in the <? that 

 segment cannot be called shining, more commonly it is 

 as much sculptured as the two preceding ; the mandibles, 

 palpi, and stigma are black, or nearly so. Nees says 

 that the 3d segment of the J" is more rimulose than that 

 of the ? , and he gives as a var. a 3 with that segment 

 nearly smooth ; examples of both are among those 

 before me. 



Six males and five females were bred, on Sept. 9th, 

 from Gymnctron noctis, Hbst., on toadflax, by Bignell ; 

 and several of both sexes by Billups on March 16th — 

 19th from the cabbage-galls formed by Ceuthorrhynchus 

 sulcicollis, Gyl. Cornelius bred S.Jiavipaljns, Wesm., 

 from Gymuetron antirrhini, G^erm. (Stett. Zeit., 1863, 

 p. 117). 



5. Sigalphus pallidipes, Nees. 



Sigaljjhtis pallipes, Nees, Mag. Ges. Berl., 1816, p. 251, 



pi. vii., f. 2; Mon., i., 270; Cur., Farm. Ins., 



364 ; (? ? . 

 Triaspis fulnpcs (Cur.) Hal., Ent. Mag., iii., 127, S ? ; 



Sit/al^tlius fulripes, Eatz,, Ichn. d. Forst., ii., 



26, ? . 

 Brachistes fagi, Ratz., lib. cit., iii., 28, (3" ? . 



Black, pubescent, legs rufous; antennae of the ? 23-jointed, as 

 long as the body, stout ; of the S' 22-jointed, longer ; abdomen 

 short, ovate, dilated behind, anus obtuse ; carapace subbipartite, 



