OF WASHINGTON', VOLUME XIX, 1917 179 



Hartigia cressoni (Kirby). 



Whitish cylindrical larva, 22 mm. .long when nearly full grown and 

 somewhat enlarged dorsally and laterally in the thorax. 



Head. Dorsad vontrad length 1.87 nun., breadth l.lifi mm.; pale but 

 with mandibles, their articulations and labrum rhitoni/ed and darkened; 

 antennae 5 jointed. 



Thorax. With 3 pairs of medium size, hYshy, mamma-like, slightly 

 chitonized, (especially the prothoracic) legs; pleura with chiton spots as 

 has the pro- and meta thorax dorsally. 



Abdomen. Segments 3 annulate; pleura moderately prominent, yellow- 

 ish, and glossy with chiton; prolegs absent; slightly chitonized circles on 

 the 8th abdominal segment and larger more heavily chitonized spots on the 

 9th; dorsal anal lobe terminating in a prong; anal plate, lateral area of 

 dorsal anal lobe and ventral anal lobe haired, chitonized (the plate, the 

 least), and yellow; ventral anal lobe with palpiform appendages at the 

 posterior lateral extremities and accompanied by hairs which are a part of 

 that lobe's ornamentation and not separated from the rest. 



Material collected by Essig from Rubnx in California. 



Actual date of publication N< i>l< tnher 23, 1918 



