58 Trans. Acad. Sci. of St. Louis. 



as long as the preceding segment. All the legs well clothed with short, 

 pectinate bristles. Claws of all the legs moderate. 

 Length, 2.00 mm.; breadth, 1.40 mm. 



Found in grass. Collected by the writer at Muncie, 111. 



This species apparently carries its young upon its back. 

 I found several small larvae all alike (which presumably 

 were the larvae of this species, as they had several char- 

 acteristics of the adult) living parasitically upon the 

 specimen. 



Rhj'ncholoplms longitar.sus n. sp. 



PI. VIII. f. 6. 



Almost uniform red. Body and legs well clothed v/ith subspatulate, 

 clavate hairs. 



Palpi extending forward to about the middle of the third segment 

 of leg I ; palpal claw short, strongly curved ; thumb slightly swollen, not 

 surpassing the claw; second segment of palpus broader and one and one- 

 half times as long as the third segment. Mandibles about one-half as 

 long as the palpi. Dorsal groove long, extending over one-half its length 

 beyond the eyes, swollen at the posterior end and extending anteriorly 

 to the anterior tubercle v/hich is small, low and bears about six stout 

 hairs. A single pair of large eyes present, situated about half way from 

 the dorsal groove to the lateral margin of the body. 



Body subpyriform, broadest between the anterior and posterior groups 

 of legs; uniformally rounded behind. 



Anterior pair of legs as long as the body; tarsus slightly swollen, 

 as long as the tibia; tibia subequal to the preceding segment. Second 

 pair of legs small, about three-fourths as long as the anterior pair; third 

 pair slightly longer than the second. Last pair of legs equal to the 

 first pair in length; tarsus not swollen and shorter than the tibia. 



Length, 1.45 mm.; breadth, 0.92 mm. 



In trash. Described from three specimens sent to me by 

 C. R. Crosby, from Columbia, Mo. 



Rliyucholoplius erythreus n. sp. 



PI. VIII f. 7. 



Red; body darker than the appendages. Body thickly clothed with 

 short, stout, slightly pectinate hairs; hairs on the legs simple and longer 

 than those of the body. 



Cephalothorax not clearly separated from the abdomen. Palpi sur- 

 passing the first two segments of the first pair of legs; thumb small, not 

 swollen and equal to the palpal claw; second segment of the palpus the 

 longest, being both longer and stouter than the third segment; mandi- 

 bles about three-fifths as long as the palpi. Dorsal groove extending 

 slightly beyond the eyes; anteriorly it leads to a broad, low tubercle, 

 v/hich bears about a dozen large, stout, straight bristles. Eyes large, 

 single and situated laterally. 



