A^ol. XXviii] ENTOMOLOGICAL NEWS 197 



Legs not transversely wrinkled; ventral aperture smaller; eyes 



indistinct Tetranychoides. 



8 — Prostigmata in a horn each side at base of mandibles ; body short 

 and broad, with large, prominent spines 3.ho\c. . .Tetr any chop sis. 



Prostigmata not in a horn, or body not with spines 9 



9 — Mandibles styliform, elbowed near base; and with a supra- 

 mandibular plate; body not elongate, and thumb not extend- 

 ing much beyond claw ; spinning webs 12 



Mandibles less styliform, not elbowed near base; no supra- 



mandibular plate 10 



10 — Coxae close together; body rather short Acheles. 



Coxae in two well-separated groups; body elongate 11 



II — Thumb extending much beyond the claw; palpi very long, 



Caligonus. 



Thumb barely extending beyond the claw Siigmaeus. 



12 — Palpi very long, porrect; legs short and thick to tip. .Stigmae op sis. 

 Palpi shorter, pendant; legs slender, and tapering to tips.... 13 



13 — Claws divided into four Tetranychiis. 



Claws single, entire Oligonychus. 



Claws divided into two Schizotctranychus. 



Paratetranychus Zacher = Oligonychus Berlese 1896. 



This genus is made for T. pilosus; we have it in this country, 

 and also in this genus are T. hicolor, T. modcstiis, T. simplex 

 and T. yothcrsi. 



Schizotctranychus Tragardh. 



This has recently been proposed for T. schicopiis Zacher ; 

 T. mytilaspidis and T. pratcnrAs will go in this group. Tragardh 

 has divided Paratetranychus, using Neofetranychus for those 

 species which have the single claw without a cluster of hairs 

 at base: T. hicolor, T. modestus would go in it. T. latiis and 

 T. banksi on account of reduced claws would form a new sub- 

 genus which may be called Eutetranychus. 



Parasitoidea. 

 Spelaeorhynchus latus n. sp. (Pl. XIV. figs. 6, 8). 



Yellowish; head and anterior part of shield brownish, a blackish 

 spot on each side of the head and on each side of the shield in front; 

 legs brownish yellow, except the pale articulations and bases of hairs. 

 Kead as long on sides as in middle, where it is faintly emarginate, 

 above with crossed ridges. Dorsum of body as broad as long, broad- 

 est behind the middle, the posterior margin slightly emarginate in 

 middle; a few short hairs above, one pair on front margin, on sides 



