150 



PSYCHE. 



[December 1897. 



surprising find, made by Prof. Cockerell 

 during the summer of 1S97, is a speci- 

 men of this species, taken in the Mesilla 

 Valley, on Bigelovia ~i:rightii, August 

 5. It is the first specimen of the genus 

 ever taken in New Mexico, to my 

 knowledge. 



TACHINIDAE s. str. 



I I . Jnriiiia lateralis Mcq. Two 



(? s (Ckll.), Las Cruces, May 3 and 

 June 9. The former is an undersized 

 specimen, with the abdomen less red on 

 sides. 



12. Gonia sequex\^'\\\. Two speci- 

 mens (Ckll.), Las Cruces. One April 

 9, on flowers of Pr?in!is doinesticus 

 (plum) ; the other, May 5. 



A NEW ANT-NEST COCCID. 



BY GEO. B. KING, LAWRENCE, MASS., AND J. D. TINSLEY, MESILLA PARK, N. MEX. 



The species described below was col- 

 lected bv Mr. King. The notes on the 

 microscopical characters were prepared 

 by Mr. King, but have been extended 

 and rewritten from Mr. King's mounts 

 by Prof. Tinsley, who is also respon- 

 sible for the comparison with allied 

 species. The drawings are by Mr. 

 Tinsley. The notes on the living insect, 

 and habits, etc., are by Mr. King. 



Dactylopius claviger, n. sp. — Adult ?. 

 Length 2.5-3.5 mm. Width about 2 mm. 

 Shape, ovoidal, quite plump. Color, dark 

 reddish-brown, covered with white mealy 

 secretion. Segmentation of body distinct, 

 under hand lens. No lateral or caudal 

 appendages. Boiled in caustic potash it 

 colors the liquid a light violet red. Legs 

 and antennae pale yellowish-brown. An- 

 tennae 8-jointed ; 8 longest, longer than 

 6-)-7, and with several whorls of hairs, the 

 hairs being numerous at the distal end ; i 

 next longest, its diameter equalling or 

 slightly exceeding its length, a whorl of hairs 

 around its distal end ; 2 next, its diameter 

 about \ of its length, two whorls of hairs, 

 one about midwav and the other near distal 



end; 5 next, with two whorls of hairs, one 

 at each end ; 7 next, with a whorl of hairs 

 about its middle, 3 next ( 3 and 7 are often 

 subequal), its diameter being about j of that 

 of 2, a whorl of hairs about its middle; 4 and 

 6 about subequal and with a whorl of hairs 

 about the middle. The joint between 4 and 

 5 is often, almost usually, quite indistinct, 

 and this might be considered a prominent 

 characteristic. Antennal formula S12573 

 (46). See figure of antenna. Legs, — 



Antenna, X : 



Femur stout^being a little over twice as long 

 as wide, quite hairy ; tibia, width [about 4 

 the width of the femur, length about equal 



