106 The Ohio Journal of Science [Vol. XXI, No. 3, 



between the eyes, posterior to this pair is a median tubercle 

 bearing four spines, posterior to this tubercle and close to 

 anterior edge of prothorax is a large pair of prominent tubercles 

 each bearing five spines. Prothorax . with a median dorsal elevation 

 bearing a tubercle with two long spines and three shorter ones anterior 

 to the long spines, behind this tubercle is a smaller median tubercle 

 bearing a pair of diverging spines; posterior lateral margin of prothorax 

 with a prominent tubercle bearing four spines; anterior to this tubercle 

 on the margin are usually two large and three or four smaller spines 

 (these spines vary in number and size) ; mesothorax with a pair of median 

 separated tubercles each bearing three large spines; each mesothoracic 

 lobe bears a prominent tubercle with four spines on lateral margin just 

 posterior to middle; anterior to this tubercle are usually three large 

 and two smaller marginal spines; centre of mesothoracic lobe slightly 

 elevated; median separated spines on abdominal segments two, five, 

 six, eight and nine; each posterior lateral margin of abdominal segments 

 four, five, six, seven and eight bears a tubercle tipped with two long 

 spines (sometimes a third short spine is present). All spines with tuber- 

 culate bases. All spines tipped with a short probably secreting hair. 

 Abdomen strongly margined. Mesothoracic lobes reaching almost to 

 fifth abdominal segment. Ventral surface brownish black except for the 

 portion of the thorax between the legs and the first and second abdom- 

 inal segments which are white. The lateral edges of abdominal segments 

 six and seven are usually somewhat light. Legs whitish except for dark 

 tarsi and claws. Legs sparsely hairy, hairs short and light brown in 

 color. Rostrum extending to third thoracic segment, whitish except 

 for brownish tip. 



