NO. 3562 MALAYAN FLIES—STEYSKAL 13 
to those of female (fig. 3b); occipital ocular margin bare, whitish 
pruinose. 
Thorax with changeable pruinosity, when viewed from rear with 
central stripe, stripes in lines of de bristles, and broad lateral areas, 
grayish. Chaetotaxy: 4 h in row; 2 ntpl; 1 sl; 1 prs; 1 small pra 
and 3 strong sa, 3 pa; 2 small posterior ia; 2+-4 dc; 3 strong presu- 
tural acr and several much smaller and finer pairs of postsutural 
acr ending in row of 6 strong prsc; 6 marginal sc; 1 ppl and 1 strong 
stigmatal, each accompanied by a group of long strong bristly hairs, 
1+2 stpl, the posterior 2 close together; complete row of about 18 
Figure 3.—Fraserella altivolans, new species: a, female head, profile; b, male wing; c, 
diagrammatic male head, anterior and lateral views; d, male arista. 
posterior mspl. All thoracic hairs long and coarse, only the follow- 
ing areas bare: prosternum, center of propleuron, oblique stripe from 
center of mesopleuron to just posterad of cx,, pteropleuron, hypo- 
pleuron, supra-alar and postalar declivities (except a few small hairs 
just below pa), suprasquamal ridge, lower surface of scutellum, me- 
tanotum. Sides of scutellum with many coarse hairs. 
Legs simple, only f, quite slender in apical fourth; claws and pul- 
villi moderate in size. Chaetotaxy: jf, with 2 complete rows of pd, 
1 complete row of long pv; t, with short median p and many short 
ad; f. with 5 pv shorter than femoral diameter, about as many av 
only half as long as pv, and 3 closely adjacent preapical pd; & with 
2 p in apical half, 12d and 4 v preapicals; f,; with complete comb of 
densely placed disticlinate bristly ad hairs about as long as femoral 
