NEMOBIUS SYLVESTRIS. 131 



Declarata videtur. Corpus parvum, nigrum. Caput atruin, 

 nitidum orbita oculorum subpallescente. Thorax pallens 

 margine omni nigi'icaiite. Elytra brevia, fornicata, palles- 

 ceiitia, fusco striata. Abdomen nigrum ense recurvo, nigro, 

 stylis duobus longiore. 



(J. C. Fabricius, ' Ent. Syst.' ii, p. 33, n. 18, 1793.) 



MALE IMAGO (PI. XIII, fig. 1).- -General colour very 

 dark brown with paler markings. Surface sparsely 

 hairy. Length some 9-10 mm. Head short, black, 

 with yellow markings, the most noticeable being a 

 pentagon. Maxillary palpi dilated and otherwise 

 modified. Elytra abbreviated, truncated, longer than 

 the pronotum, nervures dark. Wings absent. Pronotum 

 with upper surface somewhat paler than the general 

 colour. Fore tibise with an auditory organ (tympanum) 

 on the outer side only. Hind tibids with spines long 

 and moveable six at the distal end, and above them 

 three on each margin arranged alternately. Basal 

 segment of hind tarsi hairy. CVrr/ long, rather pale, 

 hairy. Sab-genital lamina compressed and bluntly 

 pointed. 



FEMALE IMAGO (PL XIII, fig. 2).- -A little larger than 

 the male. Elytra much shorter, nervures dark, straight; 

 hind margins forming a concave A. Ovipositor 

 straight ; at least as lonp; as the abdomen. 



O cj 



NYMPH.- -Except when nearing maturity, the nymph 

 may of course be readily distinguished by its smaller 

 size. Further it lacks the elytra, and is even darker 

 in colour than the adult. 



DATE.- -Imagines are numerous in the New Forest 

 in late summer, and, as some are to be found in spring 

 and autumn, it would appear that they may sometimes 

 (if perhaps but seldom) hibernate at that stage. As 

 evidence of this Gr. T. Lyle sent me thence three 

 living examples, which he had found crawling and 

 hopping about on fallen sweet chestnut leaves on 12 

 February 1910. Two were nymphs, but the third, a 

 female, appeared to be adult. Of the small ones he 

 saw great numbers, but he met with only the single 



