60 
KEY TO THE SPECIES OF LOS BANOS TIPHIA. 
By P. H. TIMBERLAKE. 
Males. 
e> Head andethorax -notrre tcullathe dei ter. cree myst et eles peteone et sete 
Head and thorax with a fine but distinct surface reticulation. 
Punctures generally sparser in area in front of ocelli; carina on 
anterior margin of pronotum well elevated; submedian carinae 
on propodeum straight, generally converging towards apex (in 
one reared specimen perfectly parallel), median carina reaching 
two-thirds or quite to apex; 2nd and 8rd joints of antennae 
nearly or quite equal, the 4th hardly or not over a third longer 
than the 3rd. 
On Autoserica grubs. 
Tiphia ashmeadi Cwtd. 
2. Joints 2 and 3 of antennae nearly or quite equal in length, the 4th 
nearly twice as long as the 3rd; anterior margin of pronotum behind 
the transverse carina without longitudinal sulci. 
Head and thorax rather sparsely punctured (except on frons just 
above antenna); truncated part of propodeum finely rugosely 
sculptured throughout; median carina on propodeum complete. 
On Anomala grubs. 
Tiphia segregata Cwfad. 
Joint 2 of antennae distinctly shorter than 3rd, the 4th generally 
hardly over a third longer than the 5rd; anterior margin of prono- 
tum, with distinct longitudinal sulci behind the transverse carina. 
Head and thorax closely punctured; truncated part of propodeum 
generally smoother and more polished above; median carina on 
propodeum often incomplete, sometimes not reaching more than 
one-third of distance to apex. 
On Adoretus grubs. 
Tiphia lucida Cwfd. 
Females. 
il velead and: ithorax snot reticulatede ee ac. seers imei ees nee ees 2 
Head and thorax with a very fine surface reticulation. 
Punctures on head and thorax close set and coarse; inner spur on 
hind tibia reaching about to two-thirds of the 1st tarsal joint; 
legs except all coxae, tarsi and front femora reddish, the middle 
and hind femora more or less suffused with blackish, especially 
on their outer surface. 
On Adoretus grubs. 
T. lucida Cwfd. 
2. Punetures on vertex rather sparse, especially just in front of ocelli; 
sarinae on propodeum with a row of punctures alongside each, sub- 
lateral carinae very indistinct or practically absent; inner surface of 
hind femora highly polshed and with a few minute scattered fine 
punctures, which become much larger and rather close-set along the 
lower margin; inner surface of hind tibiae very finely and closely 
pubescent-punctate on upper half, and much more thinly so on lower 
half, the two parts separated by a bare, shining longitudinal, narrow 
