DESCRIPTIONS OF NEW GENERA AND SPECIES. 43 



General color uniform dark brownish-red. AntennsB dark brown, 

 legs brown, tips of fore tibiae and fore tarsi yellow. 



Head about as long as wide, broadly rounded in front, cheeks slightly 

 arched, back of head cross-striated; postocular spines long and with 

 blunt tips. Eyes large, semitriangular in shape, slightl}^ protruding, 

 black, with bright-yellow outer borders, pilose. Ocelli present, sit- 

 uated far forward, anterior one on vertex ; posterior ocelli contiguous 

 with inner anterior margins of eyes, red, with reddish-black crescents. 

 Moutli-cone short, pointed, not reaching across prosternum, maxillary 

 palpus with two segments. Antennx with eight segments, one and 

 five-tenths times as long as head, dark brown, except segment 3, which 

 is lighter; segments increasing in size gradually until the fourth, 

 which is largest, and then gradually diminishing toward the tip; all 

 spines and sense cones transparent, three sense cones on segment 4, 

 two smaller ones on segment 5. 



Prothorax with sides diverging posteriorly, widest near the back. 

 The fore coxse are broadly rounded and prominent and form what 

 appear to be the posterior angles of the prothorax; long blunt spines 

 on anterior and posterior angles, on sides and on prominent coxae; 

 other spines not conspicuous. Pterthorax largest. Legs rather slender, 

 without conspicuous spines or markings; only a very small claw on 

 each fore tarsus, ^yings long, slender, transparent except where 

 light brown at extreme base above. 



Abdomen with segments 2 to 6, inclusive, about equal, after wliich 

 they decrease gradually until the tube. Segments 2 to 8 each ^\'ith 

 two long, blunt hairs on posterior angles. Segments 2 to 7 each with 

 a pair of strong, brown, inwardly curved spines on either side half 

 way from center to margin; other spines smaller and not conspicuous. 

 Hairs on terminal segments long and slender. 



Described from a single female. ' 



Uabitat: San Jose, Cal. 



Taken in blossoms of azalea, in May. 

 (92) Cephalothrips errans new species. (PL VI, figs. 42-44.) 



Measurements of two wingless females : Head, length 0.18 mm., wddth 

 0.13 mm.; prothorax, length 0.12 mm., width (including prominent 

 fore coxa) 0.22 mm.; mesothorax, width 0.20 mm.; abdomen, width 

 0.28 mm.; tube length 0.10 mm.; total body, length 1.16 mm. 

 Antennge: 1, 18 /i; 2, 39 /x; 3, 39 ft; 4, 45 //; 5, 45 //; 6, 39 /t; 7, 39 jn; 

 8,24: n; total length 0.28 mm. 



Three specimens of the winged male of tliis species show the follow- 

 ing variations: Prothorax, length 0.14 mm., width 0.26 mm.; meso- 

 thorax, width 0.25 mm.; total length 1.86 mm. when the body is dis- 

 tended. Antennae: 1,21/z; 2,45//; 3,45//; 4, 48/i; 5,42;/; 6, 39;u; 

 7, 45 //; 8, 30 //. 



