3§8 REV. J. E. HULL ON 



28. Pelops perarmatus. sp. nov. 66b. 



Length just over 1 mm. Prodorsal extension flat, 

 front margin straight, brown like the pteromorphae. 

 Sensillus similar in form to that of acromius but 

 relatively shorter. Dorsum black, with a long oval 

 clear spot on the median line. Dorsal setae 

 uniform, thick, rigid, long and acute. 



In nests of Formica rufa at Chopwell, Durham 

 (P. Charlton). 



29. Pelops farinosus, Nic. 67a. 



This species seems to be rare east of the Pennines, 

 but in Cheshire and Flintshire it appears to be the 

 commonest of the genus. Also pretty frequent in 

 Cumberland. 



30. Pelops major, Hull. 67c. 



Very like perarmatus, but the dorsal hairs are quite 

 slender, and the secretion sets in fine granulate 

 wrinkles, the surface of the pteromorphae being 

 similar and of the same colour — dead black. 



Cumberland. 



31. Pelops fuligineus, K. 66bc, 67ac, 68a. 



Dorset, Cumberland, Scotland, Ireland. 



32. Pelops approximatus, sp. nov. 67a. 



Length, 510 /x. 



Clear spot present but indefinite. Dorsal hairs all 

 similar, a little thickened and blunt, short, not 

 conspicuous except the posterior four (two divergent 

 on the margin, two nearer together and convergent 

 immediately above). Dorsum when coated with 

 secretion showing two elongate irregular smooth 

 spaces on the median line ; when clear reddish brown 

 minutely punctate (like Peloptulus phceonotus). 

 Sensillus slender, fusiform distally, with an 

 imbricate or serrate head ending in a point. 



Among pine needles and moss in a pine wood, West 

 Allendale : a few specimens only. 



