HYPERIDEA. j^g 



from the extremity ; that of the seventh is narrow, and bears but one 

 or two small joints near its apex. In Typhis, the coxa of the fifth 

 pair bears the following joints upon its under surface a little distance 

 from the extremity. In our species, there are four masses of pigment. 

 This genus includes the Typhis ferox of Edwards, Crust., iii. 96. 

 The name is from ty»», door, and * m , foot 



Thyropus diaphanus. 



Caput transversum, fronte rotundatum. Abdomen thorace paido Ion- 

 gius, §-articulatum, segmento postico triangulate, non oblongo, sub- 

 acute, stylis inferioribus. Pigmenta oculorum quatuor, parva. An- 

 tennas lmo3 breves, basi crasso3, articido basis ultimo ellipsoideo, 

 subacute, midti-articidato, appendice laterali parvuld, Z-articulatd. 

 Antennas, 2do? longissimce, 5-articidata3, ad articulationes quatuor flexce, 

 artiadis secundo tertioque valde elongatis, wquis, prima plus triplo 

 breviore, quarto fere triplo longiore quam primus, quinto primum fere 

 cequa?ite. Coxa quinta subelliptica, parte pedis reliqud parce longior, 

 apice vix prominente. Coxa sexta oblique^ ovata, apice truncata, parte 

 pedis reliqud plus triplo breviore. Coxa septima angustissima. 



Head transverse, rounded in front. Abdomen a little longer than 

 thorax, five-jointed, last segment triangular, not oblong, subacute, 

 stylets attached to under surface. Pigments of eyes four in 

 number, small. Anterior antennse short, at base stout, last joint 

 of base oval, subacute, multiarticulate, lateral appendage small, 

 three-jointed. Posterior antennse very long, five-jointed, flexed at 

 four articulations, second and third joints quite long, equal, first less 

 than one-third the second, fourth three-fourths the second, fifth 

 about equal to first. Coxa of fifth pair subelliptical, about as long 

 as rest of leg, apex hardly prominent. Coxa of sixth pair obliquely 

 ovate, truncate at apex, rest of foot not one-third as long as coxa. 

 Coxa of seventh pair a slender lamina, a little curved. 



Plate 69, fig. 4 a, animal, enlarged, ventral view ; b, same, oblique 

 dorsal view ; c, inner antenna ; d, outer antenna ; e, one of third or 



254 





