234 [October, 



Magellan (Tolmefes Champ. = Tohnerns Fnirm., no7n. praeocc). One 

 or two of those from East Africa, described by Pic under Scraptia, 

 will have to be transferred to Biophida, of which a remarkable new^ 

 form has been taken by Mr. Neave in the same region. 



Forty-three species of Scraptiina are dealt with iu this article, 

 and all but four of them are described as new. Thirty- seven are 

 referred to Sn-aptia, this bringing the total number for that genus to 

 100 (Pic in his Catalogue, 1911, gives 63). The latter now requires 

 revision, but the material before me is insufficient in many cases for 

 the proper study of such fragile insects, and offpn one sex only is 

 represented. A form closely related to the Central American 

 S. {Canifa) speciosa Champ., wdth a cleft fifth ventral segment, &c., 

 in ^ , occurs in China, showing the wdde distribution of at least one 

 of the sections of the genus. The mandibles are very deeply cleft in 

 several of the Tropical American species {8. triangularis, etc.), simply 

 bifid at the tip in 8. crihriceps (China), and entire in 8. setipes 

 (Ceylon), intermediate forms occurring. The lobing of the penulti- 

 mate tarsal joint, too, varies in development according to the species. 

 The antennae, again, usually differ in the relative lengths of the joints 

 2 and 3 in the two sexes, the males of many of the forms having a 

 verj^ small third joint, and the eyes may be much larger in this sex 

 than in the female. It is therefore preferable to leave these insects at 

 present under the one genus Scraptia, simply excluding those with 

 toothed or appendiculate tai'sal claws {Biophida), or with a less dilated 

 apical joint to the labial palpi (Biophidina), these two genera belong- 

 ing to the African fauna. Three minute forms from Tasmania were 

 described by myself in 1895, and a much larger, maculate insect allied 

 to 8. lunulata Blackb., is now added from the Australian mainland. 

 In the Museum there are also numerous small imnamed Scraptiids 

 from New Zealand, but these have not been dealt with in the present 

 paper. All are wood-feeders in their earlier stages, several of the 

 Palaearctic species living in oalc. 



The following key will help in the determination of the new 

 species described under the genus 8craptia, but where only one sex (?) 

 is known, the position assigned may prove to be inaccurate when the 

 male is found : — 



1 (24) Body winged. 



2 (11) Antennal joints 2 and 3 short and s^^b-equal in J , 3 much shorter 



than 4 in 9 • 



3 (10) Head not, or moderately, dilated behind the eyes. 



