FALSE WIREWORMS OF PACIFIC NORTHWEST. 79 
of short hairs on caudal segment. Head subquadrate, very convex, distance from 
base to labrum equal to one-half width 
of head, sides converging anteriorly, 
posterior angles rounded; two stout hairs 
on lateral dorsal surface; two oblong 
black eye-spots on lateral anterior part, 
a large one at base of antennze, and a 
smaller one posterior and dorsad of ‘this. 
Suture arising at base of each mandible 
flexed laterally and converging posteri- 
orly to unite with the median suture ata 
distance from base of head equal to one- 
fourth distance from base to labrum; 
mouthparts usually directed ventrally. 
Labrum large, basal joint trapeziform, 
terminal joint rounded, bearing several 
hairs on margin, both joints margined 
anteriorly. Mandibles large, visible from 
above. Labium not covering mandibles, 
ligula broader than palpifer; labial palpi 
cylindrical, two-jointed, second joint 
papilliform; mentum larger than palpifer, 
submentum larger than mentum, all 
quadrangular and narrower at base than 
at anterior margin. Maxille larger than 
labium, stipes directed laterally, palpifer 
elongate and directed antero-medially; 
maxillary palpi at about middle of 
palpifer, three-jointed, first and second 
joints about equal in length, first stouter, 
third papilliform. Thoracic legs stout; 

. . Fic. 24.—False wireworm, Eleodes letcheri vandykei. 
S = a : ‘ 
first par longer than width of thorax, a, Larva, dorsal aspect; b, head, dorsal aspect; 
second and third pairs one-third shorter; —_¢, head, ventral aspect; d, caudal s2gment, dorsal 
first pair very heavy, terminal hook as aspect. a, Much enlarged; b,c, d, more enlarged. 
long as fourth joint, second joint bearing — Original.) 
2 stout short spines on inner distal margin, third joint bearing 3 marginal spines 
and fourth joint bearing 4 such spines. 
The pupa (fig. 25).—Length 11 mm., 
width 5.3 mm., arcuate dorsally, flat- 
tened to slightly concave ventrally. 
Entirely white when first pupated but 
eyes soon become black followed by 
tips of mandibles; just prior to emerging 
the elytra and dorsum of thorax become 
black. Head pressed to the prosternum. 
Pronotum very broad and _ protruding 
anterior to the head, making the latter 
invisible from above. Mesonotum very 
narrow and scutelliform, with indistinct 
transverse sulcus slightly anterior to mid- 
dle. Metanotum sagittiform, about as 
Fic. 25.—False wireworm, Eleodes letcheri vandykei; broad at anterior margin as mesonotum. 
a, Pupa, ventral aspect; b, same, dorsal aspect. At the base of each elytron and of each 
Much enlarged. (Original.) secondary wing pad is a rounded swell- 
ing. Seven abdominal plates visible dorsally. Between dorsal and pleural abdominal 

