204 [September, 



SO that there are only three cubital-cells, of which the second is very- 

 long, and receives both the medial nerves, and (c) the humeral cell 

 crossed (as in Em2)h/fus, Taxonus, &c.) by an oblique nerve. Three 

 o£ our species belong to the genus Loderiis, of Konow, in which the 

 eyes (when the face is viewed from in front) appear very long and 

 narrow, with a slightly concave inner margin, and reach nearly to the 

 top of the head, or at any rate as high as the front ocellus. In Dolerus, 

 as now limited by Konow — the genus embracing all our other species, 

 the eyes (viewed from in front) look much shorter and wider, with a 

 practically straight inner margin, and the vertex with all the ocelli is 

 evidently raised a good deal above them. {Cf. my table of (leneric 

 Characters). 



Besides this main difference between the two Genera, specimens 

 of Loderus may often be separated from Doleri superficially resem- 

 bling them by taking notice of their always rather short antennse, 

 which are but little longer in the $ than in the other sex, and (NB.) 

 their very uniform puncturation of the head and mesonotum, whereas 

 in Dolerus there is generally some conspicuous difference between the 

 different areas of these parts (as the middle- and side-lobes of the 

 mesonotum, the vertex and the tempora of the head, &c.), such differ- 

 ence being frequently an important specific character. 



We have only three species of Loderus recorded from these 

 islands, one of which {pratorum) seems to be extremely rai'e. It was 

 first taken by Mr. E. Saunders at Chobham, and recorded in Vol. ii 

 of the " Monograph," and I have since found one (J ^^ Woking 

 (?5. V. 1897). These are the only specimens I have heard of. 



TABLE OF BRITISH LODERUS, Spp. 



1. Abdomen mostly red. Tegulse clear white. One of our smallest Dolerides 



(about 6 c? to 6^ $ mm. long), and, except in neuration, closely resembling 



Taxonus equiseti pratorum, Fall. 



— Abdomen without red ; black, with narrow pale margins to the segments... 2. 



2. Legs with no part distinctly red, black, with sordid brownish-white knees and 



front tibiae (NB.). Length about 7-8 mm palmatus, K\. 



3. All the femora and at least the bases of the tibiae red. (Easily distinguished 



from similarly coloured Dolerus spp. by the shorter antennse, and the close, 

 regular, puncturation of the mesonotum). Slightly smaller than the last 

 species vestigialis, Kl. 



All my British examples of the three Loderus spp., were taken 

 in May or June ; and I have ioundi palmatus ?i,\-\A vestigialis, the latter 

 especially, abundant at the same time of the year in North Germany, 

 chiefly visiting sallows. 



