CHARLES W. HOOKER. 



175 



EXPLANATION OF PLATES. 

 The figures on the following plates were prepared by the 

 author as camera lucida drawings, and lack of bilateral sym- 

 metry is therefore due to the angle at which the object was 

 viewed. 



Platk I. 



1. Side view of thorax of Ophion 

 bilineatus. 



a. pro thorax, 

 al. collar. 



a2. lateral projection. 



ab. insertion of abdomen. 



ac. anterior coxa. 



b. mesothorax. 

 bl. mesonotum. 

 b2. mesopleuron. 



b3. transverse furrow. 



b4. scutellum. 



c. metathorax (proper), 

 cl. postscutellum. 



c2. metapleuron. 



c3. metathoracic epimeron. 



d. median segment or meta- 



thorax (of descriptions) . 



h. insertion of head, 



mc. median coxa, 



pc. posterior coxa, 



t. tegula. 



FIG. 



2 



Abdomen of Ophion bilinea- 

 tus (female). 

 1-7. abdominal plates. 

 ce. cerci. 

 o. ovipositor, 

 s. sheath. 



FIG. 



3. Dorsal view of thorax of 

 Ophion bilineatus. 



a. prothorax. 

 al. collar. 



a2. lateral projection, 

 ab. insertion of abdomen, 

 aw. anterior wing. 



b. mesothorax. 

 bl. mesonotum. 

 b2. mesopleuron. 



b3. transverse furrow. 



FIG. 



b4. 



c. 

 cl. 

 c2. 

 c3. 



d. 



h. 

 pc. 

 pw. 



t. 



af. 

 cf. 

 cl. 



e. 

 m. 

 oc. 



v. 



FIG. 



5. 



scutellum. 



metathorax (proper). 



postscutellum. 



metapleuron. 



metathoracic epimeron. 



metathorax (of descriptions) 

 or median segment, show- 

 ing three transverse 

 carinas. 



insertion of head. 



posterior coxa. 



posterior wing. 



tegula. 



Front view of head of 



bilineatus. 

 antennal fossa, 

 clypeal foveae. 

 clypeus. 

 eyes. 



mandibles. 

 ocelli, 

 vertex. 



O. 



Apex of abdomen of O. bili- 

 neatus (male). 

 4-7. abdominal plates, 

 ce. cerci. 

 cla. claspers. 

 p. penis. 



FIG. 



6. Cocoon of Enicospilus pur- 



gatus. 

 op. opening. 

 1. lid. 



FIG. 



7. Cleaning apparatus, 

 ti. tibia. 



tic. tibial comb, 

 ta. first tarsal segment, 

 tac. tarsal comb. 



TRANS. AM. ENT. SOC. , XXXVIII. 



