Curtis's British Entomologj/, 409 



of a new genus allied to Cucullia, but distinguished by its maxilla3, 

 wings, and abdomen being much shorter, its palpi being com- 

 pletely concealed by scales, the under side of the antennae very 

 hairy, and the anterior tibias shorter than the basal joint of the 

 tarsi. It is moreover peculiar in having two naked horny spines 

 attached to the extremity of the anterior tibiae, a conformation 

 which Mr. Curtis has never seen in any other species. 3. Mu- 

 tilla Ephipjnuniy $ and ?, the latter being the iV/, rufipes of 

 Fabricius. 4. Tabanus alpinus, a species new to Britain ; with 

 very detailed dissections of the complicated structure of the 

 mouth. 



In the twentieth number we are presented with, 1. Gyrinus 

 bicolor, Fab. (G. elongaius, Marsham). 2. Parnus impressus, 

 a new species from the author's cabinet. 3. Lobopiiora poly- 

 comaia, a new genus embracing the Seraphims of Collectors, the 

 Fhalcence hezapterata, sexalisuta^ &c. of Haworth's Lepidoptera 

 Britannica. 4. Acrida Bingleii, a new species. 



The twenty-first number embraces, 1. Chlcenius sukicollis, new 

 to this country. 2. Xanthia Centrago^ the Noctua Centrago 

 of the Lepidoptera Britannica. 3. Colletes fodiens ; Melitta*oc, 

 of Kirby's Monographia Apum Angliae. 4. Aneurus IcBvis, a 

 Cimicidous insect, separated from Aradus of Fabricius, in conse- 

 quence of the second joint of its antennaj being shorter than the 

 two succeeding ones, the rostrum shorter than the head, scutellum 

 broad and short, and the elytra destitute of nervures; the generic 

 name being derived from this latter circumstance. 



In these numbers Mr. Curtis has again in many instances given 

 under the respective genera their distribution into sections, to- 

 gether with the names of the British species referable to each. 

 He has even done more to assist the entomological student, by 

 furnishing him under Parnus with a short monograph of the 

 species found in this country, including two which had previously 

 remained undescribed. It would be adding much to the labour 

 of the author were he to continue his work on this plan, but it 

 would also materially increase its utility ; every plajte becoming 

 in fact, with its accompanying letter-press, a sufficient monograph 

 of the genus for the purposes of the British collector. 



