36 M. A. Carriker 



marginal, lateral bands of dark brown; whole of lateral regions 

 slightly darker than median portion, which is smoky golden 

 brown. Metathorax wider and shorter than prothorax, with 

 rounded anterior angles and transverse posterior margin, slightly 

 angulated medially on abdomen ; three long stout bristles in the 

 region of the slightly obtuse posterior angles, and one shorter 

 one farther in towards the middle; narrow, semicircular bands 

 start from the median, anterior portion and pass outward and 

 backward across the segment and half way across first abdominal 

 segment; whole segment uniformly smoky, golden brown. Legs 

 extremely short, femora swollen, but concealed under body, only 

 the short parallel sided tibiae projecting. 



Abdomen spindle shaped, and pointed posteriorly, with pos- 

 terior angles scarcely projecting and furnished with two stout 

 hairs in segments one to five, sixth with four, and seventh with 

 three on each side of tip ; six hairs along the posterior margin of 

 segments one to five; (the ventral portion of the abdomen is fur- 

 nished with hairs very similar to the dorsal portion, and the body 

 is so thin and translucent that care must be taken not to confuse 

 the ventral with the dorsal hairs) all the segments with heavy, 

 smoky, golden brown transverse bands, darker in posterior por- 

 tion and separated transversely by rather broad, clear sutures; 

 seventh (apical) segment deeply inserted into the sixth, with 

 pointed tip and sides slightly concave; genitalia long, with pos- 

 terior half slender and tapering to a point, with the slender 

 portion projecting from abdomen. 



Female. — Body, length 2. 11 mm., width .73 mm.; head, lengtii 

 .63 mm., width .79 mm.; body about the same shape as male; 

 head without the lateral constrictions, front more rounded ; an- 

 tennae shorter, simple, and length of joints much as in Nirmus; 

 a large, fleshy ovipositor with numerous stout hairs along sides 

 and on tip protrudes from the tip of the abdomen. 



Two females and one male collected on Tinamus robustits, at 

 Pozo Azul, Costa Rica, June, 1902. 



This is a very distinct and striking form of Goniodes, and I 

 am a little doubtful as to whether it really belongs there. The 

 spindle shaped abdomen, with continuous transverse bands and 

 th-e peculiar sexual organs are very aberrant for this genus. 



158 



